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A hybrid electric vehicle (HEV) is a type of hybrid vehicle that combines a conventional internal combustion engine (ICE) system with an electric propulsion system (hybrid vehicle drivetrain). The presence of the electric powertrain is intended to achieve either better fuel economy than a conventional vehicle or better performance. There is a variety of HEV types, and the degree to which each functions as an electric vehicle (EV) also varies. The most common form of HEV is the hybrid electric car, although hybrid electric trucks (pickups and tractors) and buses also exist.
Modern HEVs make use of efficiency-improving technologies such as regenerative brakes which convert the vehicle's kinetic energy to electric energy to charge the battery. Some varieties of HEV use their internal combustion engine to generate electricity by spinning an electrical generator to either recharge their batteries or to directly power the electric drive motors; this combination is known as a motor-generator. Many HEVs reduce idle emissions by shutting down the ICE at idle and restarting it when needed; this is known as a start-stop system. A hybrid-electric produces less emissions from its ICE than a comparably sized gasoline car, since an HEV's gasoline engine is usually smaller than a comparably sized, pure gasoline-burning, vehicle and if not used to directly drive the car, can be geared to run at maximum efficiency, further improving fuel economy. (Natural gas and propane fuels produce fewer emissions.)
Although Ferdinand Porsche developed the Lohner-Porsche in 1901, hybrid electric vehicles did not become widely available until the release of the Toyota Prius in Japan in 1997, followed by the Honda Insight in 1999. While initially perceived as unnecessary due to the low cost of gasoline, worldwide increases in the price of petroleum caused many automakers to release hybrids in the late 2000s; they are now perceived as a core segment of the automotive market of the future.
As of January 2017 As of April 2016 , Japan ranked as the market leader with more than 5 million hybrids sold, followed by the United States with cumulative sales of over 4 million units since 1999, and Europe with about 1.5 million hybrids delivered since 2000. Japan also has the world's highest hybrid market penetration. In 2016 the hybrid market share accounted for 38% of new standard passenger car sales, and 25.7% of new passenger vehicle sales including kei cars. Norway ranks second with a hybrid market share of 6.9% of new car sales in 2014, followed by the Netherlands with 3.7%, France and Sweden, both with 2.3%., over 12 million hybrid electric vehicles have been sold worldwide since their inception in 1997.
Global sales are led by the Toyota Motor Company with more than 10 million Lexus and Toyota hybrids sold as of January 2017 , followed by Honda Motor Co., Ltd. with cumulative global sales of more than 1.35 million hybrids as of June 2014 ;Ford Motor Corporation with over 424,000 hybrids sold in the United States through June 2015; and the Hyundai Group with cumulative global sales of 200,000 hybrids as of March 2014 , including both Hyundai Motor Company and Kia Motors hybrid models. As of January 2017 , worldwide hybrid sales are led by the Toyota Prius liftback, with cumulative sales of almost 4 million units. The Prius nameplate had sold more than 6 million hybrids up to January 2017. Global Lexus hybrid sales achieved the 1 million unit milestone in March 2016. As of January 2017 , the conventional Prius is the all-time best-selling hybrid car in both Japan and the U.S., with sales of over 1.8 million in Japan and 1.75 million in the United States.
Hybrid electric vehicles can be classified according to the way in which power is supplied to the drivetrain:
In each of the hybrids above it is common to use regenerative braking to recharge the batteries.
A plug-in hybrid electric vehicle (PHEV), also known as a plug-in hybrid, is a hybrid electric vehicle with rechargeable batteries that can be restored to full charge by connecting a plug to an external electric powersource. A PHEV shares the characteristics of both a conventional hybrid electric vehicle, having an electric motor and an internal combustion engine; and of an all-electric vehicle, also having a plug to connect to the electrical grid. PHEVs have a much larger all-electric range as compared to conventional gasoline-electric hybrids, and also eliminate the "range anxiety" associated with all-electric vehicles, because the combustion engine works as a backup when the batteries are depleted.
Chinese battery manufacturer and automaker BYD Auto released the F3DM PHEV-62 (PHEV-100 km) hatchback to the Chinese fleet market on December 15, 2008, for 149,800 yuan (US $22,000).General Motors launched the 2011 Chevrolet Volt series plug-in in December 2010. At the time, the Volt displaced the Toyota Prius as the most fuel-efficient car sold in the United States.
As of December 2016Volt/Ampera family is the world's all-time best-selling plug-in hybrid car, with global sales totaling about 134,500 units since its inception, including over 10,000 Opel/Vauxhall Amperas sold in Europe. The Mitsubishi Outlander P-HEV ranks second with about 119,500 units delivered worldwide. Third is the Toyota Prius Plug-in Hybrid with cumulative global sales of 79,300 units at the end of January 2017., the
William H. Patton filed a patent application for a gasoline-electric hybrid rail-car propulsion system in early 1889, and for a similar hybrid boat propulsion system in mid 1889. He went on to test and market the Patton Motor Car, a gas-electric hybrid system used to drive tram cars and small locomotives. A gasoline engine drove a generator that served to charge a lead acid battery in parallel with the traction motors. A conventional series-parallel controller was used for the traction motors. A prototype was built in 1889, an experimental tram car was run in Pullman, Illinois in 1891, and a production locomotive was sold to a street railway company in Cedar Falls, Iowa in 1897.
In 1896, the Armstrong Phaeton was developed by Harry E. Dey and built by the Armstrong Company of Bridgeport, CT for the Roger Mechanical Carriage Company. Though there were steam, electric, and internal combustion vehicles introduced in the early days, the Armstrong Phaeton was innovative with many firsts. Not only did it have a gasoline powered 6.5-liter, two-cylinder engine, but also a dynamo flywheel connected to an onboard battery. The dynamo and regenerative braking were used to charge the battery. Its electric starter was used 16 years before Cadillac's. The dynamo also provided ignition spark and powered the electric lamps. The Phaeton also had the first semi-automatic transmission (no manual clutch). The exhaust system was an integrated structural component of the vehicle. The Armstrong Phaeton's motor was too powerful; the torque damaged the carriage wheels repeatedly.
In 1900, while employed at Lohner Coach Factory, Ferdinand Porsche developed the Mixte, a 4WD series-hybrid version of "System Lohner-Porsche" electric carriage that previously appeared in 1900 Paris World Fair. George Fischer sold hybrid buses to England in 1901; Knight Neftal produced a racing hybrid in 1902.
In 1905, Henri Pieper of Germany/Belgium introduced a hybrid vehicle with an electric motor/generator, batteries, and a small gasoline engine. It used the electric motor to charge its batteries at cruise speed and used both motors to accelerate or climb a hill. The Pieper factory was taken over by Imperia, after Pieper died. The 1915 Dual Power, made by the Woods Motor Vehicle electric car maker, had a four-cylinder ICE and an electric motor. Below 15 mph (24 km/h) the electric motor alone drove the vehicle, drawing power from a battery pack, and above this speed the "main" engine cut in to take the car up to its 35 mph (56 km/h) top speed. About 600 were made up to 1918. The Woods hybrid was a commercial failure, proving to be too slow for its price, and too difficult to service. In England, the prototype Lanchester petrol-electric car was made in 1927. It was not a success, but the vehicle is on display in Thinktank, Birmingham Science Museum. The United States Army's 1928 Experimental Motorized Force tested a gasoline-electric bus in a truck convoy.
In 1931 Erich Gaichen invented and drove from Altenburg to Berlin a 1/2 horsepower electric car containing features later incorporated into hybrid cars. Its maximum speed was 25 miles per hour (40 km/h), but it was licensed by the Motor Transport Office, taxed by the German Revenue Department and patented by the German Reichs-Patent Amt. The car battery was re-charged by the motor when the car went downhill. Additional power to charge the battery was provided by a cylinder of compressed air which was re-charged by small air pumps activated by vibrations of the chassis and the brakes and by igniting oxyhydrogen gas. No production beyond the prototype was reported.
During the Second World War, Ferdinand Porsche sought to use his firm's experience in hybrid drivetrain design for powering armored fighting vehicles for Nazi Germany. A series of designs, starting with the VK 3001 (P), the unsuccessful VK 4501 (P) heavy tank prototype (which became the Elefant tank destroyer) and concluding with the heaviest armored fighting vehicle ever prototyped, the Panzerkampfwagen Maus of nearly 190 tonnes in weight, were just two examples of a number of planned Wehrmacht "weapons systems" (including the highly-"electrified" subsystems on the Fw 191 bomber project), crippled in their development by the then-substandard supplies of electrical-grade copper, required for the electric final drives on Porsche's armored fighting vehicle powertrain designs.
The regenerative braking system, a core design concept of most modern production HEVs, was developed in 1967 for the American Motors Amitron and called Energy Regeneration Brake by AMC. This completely battery powered urban concept car was recharged by braking, thus increasing the range of the automobile. The AMC Amitron was first use of regenerative braking technology in the U.S.
A more recent working prototype of the HEV was built by Victor Wouk (one of the scientists involved with the Henney Kilowatt, the first transistor-based electric car). Wouk's work with HEVs in the 1960s and 1970s earned him the title as the "Godfather of the Hybrid". Wouk installed a prototype hybrid drivetrain (with a 16-kilowatt (21 hp) electric motor) into a 1972 Buick Skylark provided by GM for the 1970 Federal Clean Car Incentive Program, but the program was stopped by the United States Environmental Protection Agency (EPA) in 1976 while Eric Stork, the head of the EPA's vehicle emissions control program at the time, was accused of a prejudicial coverup.
The regenerative brake concept was further developed in the early 1980s by David Arthurs, an electrical engineer, using off-the shelf components, military surplus, and an Opel GT. The voltage controller to link the batteries, motor (a jet-engine starter motor), and DC generator was Arthurs'. The vehicle exhibited 75 miles per US gallon (3.1 L/100 km; 90 mpg-imp) fuel efficiency, and plans for it were marketed by Mother Earth News.
In 1982, Fritz Karl Preikschat invented an electric propulsion and braking system for cars based on regenerative braking. While clearly not the only patent relating to the hybrid electric vehicle, the patent was important based on 120+ subsequent patents directly citing it. The patent was issued in the U.S. and the system was not prototyped or commercialized.
In 1989, Audi produced its first iteration of the Audi Duo (the Audi C3 100 Avant Duo) experimental vehicle, a plug-in parallel hybrid based on the Audi 100 Avant quattro. This car had a 9.4 kilowatts (12.8 PS; 12.6 bhp) Siemens electric motor which drove the rear roadwheels. A trunk-mounted nickel-cadmium battery supplied energy to the motor that drove the rear wheels. The vehicle's front roadwheels were powered by a 2.3-litre five-cylinder petrol engine with an output of 100 kilowatts (136 PS; 134 bhp). The intent was to produce a vehicle which could operate on the engine in the country, and electric mode in the city. Mode of operation could be selected by the driver. Just ten vehicles are believed to have been made; one drawback was that due to the extra weight of the electric drive, the vehicles were less efficient when running on their engines alone than standard Audi 100s with the same engine.
Two years later, Audi, unveiled the second duo generation, the Audi 100 Duo - likewise based on the Audi 100 Avant quattro. Once again, this featured an electric motor, a 21.3 kilowatts (29.0 PS; 28.6 bhp) three-phase machine, driving the rear roadwheels. This time, however, the rear wheels were additionally powered via the Torsen centre differential from the main engine compartment, which housed a 2.0-litre four-cylinder engine.
Research and Development was advancing in the 1990s with projects such as the early BMW 5 Series (E34) CVT hybrid-electric vehicle  In 1992, Volvo ECC was developed by Volvo. The Volvo ECC was built on the Volvo 850 platform. In contrast to most production hybrids, which use a gasoline piston engine to provide additional acceleration and to recharge the battery storage, the Volvo ECC used a gas turbine engine to drive the generator for recharging.
The Clinton administration initiated the Partnership for a New Generation of Vehicles (PNGV) program on 29 September 1993, that involved Chrysler, Ford, General Motors, USCAR, the DoE, and other various governmental agencies to engineer the next efficient and clean vehicle. The United States National Research Council (USNRC) cited automakers' moves to produce HEVs as evidence that technologies developed under PNGV were being rapidly adopted on production lines, as called for under Goal 2. Based on information received from automakers, NRC reviewers questioned whether the "Big Three" would be able to move from the concept phase to cost effective, pre-production prototype vehicles by 2004, as set out in Goal 3. The program was replaced by the hydrogen-focused FreedomCAR initiative by the George W. Bush administration in 2001, an initiative to fund research too risky for the private sector to engage in, with the long-term goal of developing effectively carbon emission- and petroleum-free vehicles.
1998 saw the Esparante GTR-Q9 became the first Petrol-Electric Hybrid to race at Le Mans, although the car failed to qualify for the main event. The car managed to finished second in class at Petit Le Mans the same year.
Automotive hybrid technology became widespread beginning in the late 1990s. The first mass-produced hybrid vehicle was the Toyota Prius, launched in Japan in 1997, and followed by the Honda Insight, launched in 1999 in the United States and Japan. The Prius was launched in Europe, North America and the rest of the world in 2000. The first-generation Prius sedan has an estimated fuel economy of 52 miles per US gallon (4.5 L/100 km; 62 mpg-imp) in the city and 45 miles per US gallon (5.2 L/100 km; 54 mpg-imp) in highway driving. The two-door first-generation Insight was estimated at 61 miles per US gallon (3.9 L/100 km; 73 mpg-imp) in city driving and 68 miles per US gallon (3.5 L/100 km; 82 mpg-imp) on the highway.
The Toyota Prius sold 300 units in 1997 and 19,500 in 2000, and cumulative worldwide Prius sales reached the one million mark in April 2008. By early 2010, the Prius global cumulative sales were estimated at 1.6 million units. Toyota launched a second-generation Prius in 2004 and a third in 2009. The 2010 Prius has an estimated U.S. Environmental Protection Agency combined fuel economy cycle of 50 miles per US gallon (4.7 L/100 km; 60 mpg-imp).
The Audi Duo III was introduced in 1997, based on the Audi B5 A4 Avant, and was the only Duo to ever make it into series production. The Duo III used the 1.9-litre Turbocharged Direct Injection (TDI) diesel engine, which was coupled with a 21 kilowatts (29 PS; 28 bhp) electric motor. Due to low demand for it because of its high price,[clarification needed] only about sixty Audi Duos were produced. Until the release of the Audi Q7 Hybrid in 2008, the Duo was the only European hybrid ever put into production.
The Honda Civic Hybrid was introduced in February 2002 as a 2003 model, based on the seventh-generation Civic. The 2003 Civic Hybrid appears identical to the non-hybrid version, but delivers 50 miles per US gallon (4.7 L/100 km; 60 mpg-imp), a 40 percent increase compared to a conventional Civic LX sedan. Along with the conventional Civic, it received a styling update for 2004. The redesigned 2004 Toyota Prius (second generation) improved passenger room, cargo area, and power output, while increasing energy efficiency and reducing emissions. The Honda Insight first generation stopped being produced after 2006 and has a devoted base of owners. A second-generation Insight was launched in 2010. In 2004, Honda also released a hybrid version of the Accord but discontinued it in 2007, citing disappointing sales.
The Ford Escape Hybrid, the first hybrid electric sport utility vehicle (SUV), was released in 2005. Toyota and Ford entered into a licensing agreement in March 2004 allowing Ford to use 20 patents from Toyota related to hybrid technology, although Ford's engine was independently designed and built. In exchange for the hybrid licenses, Ford licensed patents involving their European diesel engines to Toyota. Toyota announced calendar year 2005 hybrid electric versions of the Toyota Highlander Hybrid and Lexus RX 400h with 4WD-i, which uses a rear electric motor to power the rear wheels, negating the need for a transfer case.
In 2006, General Motors Saturn Division began to market a mild parallel hybrid, the 2007 Saturn Vue Green Line, which utilized GM's Belted Alternator/Starter (BAS Hybrid) system combined with a 2.4-litre L4 engine and an FWD automatic transmission. The same hybrid powertrain was also used to power the 2008 Saturn Aura Greenline and Malibu Hybrid models. As of December 2009 , only the BAS-equipped Malibu is still in (limited) production.
In 2007, Lexus released a hybrid electric version of their GS sport sedan, the GS 450h, with a power output of 335 bhp. The 2007 Camry Hybrid became available in summer 2006 in the United States and Canada. Nissan launched the Altima Hybrid with technology licensed by Toyota in 2007.
Commencing in fall 2007, General Motors began to market their 2008 Two-Mode Hybrid models of their GMT900-based Chevrolet Tahoe and GMC Yukon SUVs, closely followed by the 2009 Cadillac Escalade Hybrid version. For the 2009 model year, General Motors released the same technology in their half-ton pickup truck models, the 2009 Chevrolet Silverado and GMC Sierra Two-Mode Hybrid models.
The Ford Fusion Hybrid officially debuted at the Greater Los Angeles Auto Show in November 2008, and was launched to the U.S. market in March 2009, together with the second-generation Honda Insight and the Mercury Milan Hybrid.
The Hyundai Elantra LPI Hybrid was unveiled at the 2009 Seoul Motor Show, and sales began in the South Korean domestic market in July 2009. The Elantra LPI (Liquefied Petroleum Injected) is the world's first hybrid vehicle to be powered by an internal combustion engine built to run on liquefied petroleum gas (LPG) as a fuel. The Elantra PLI is a mild hybrid and the first hybrid to adopt advanced lithium polymer (Li-Poly) batteries. The Elantra LPI Hybrid delivers a fuel economy rating of 41.9 miles per US gallon (5.61 L/100 km; 50.3 mpg-imp) and CO2 emissions of 99 g/km to qualify as a Super Ultra Low Emission Vehicle (SULEV).
The Mercedes-Benz S400 BlueHybrid was unveiled in the 2009 Chicago Auto Show, and sales began in the U.S. in October 2009. The S400 BlueHybrid is a mild hybrid and the first hybrid car to adopt a lithium ion battery. The hybrid technology in the S400 was co-developed by Daimler AG and BMW. The same hybrid technology is being used in the BMW ActiveHybrid 7, expected to go on sales in the U.S. and Europe by mid-2010. In December 2009 BMW began sales of its full hybrid BMW ActiveHybrid X6, while Daimler launched the Mercedes-Benz ML450 Hybrid by lease only.
Sales of the Honda CR-Z began in Japan in February 2010, followed by the U.S. and European markets later in the year, becoming Honda's third hybrid electric car in the market. Honda also launched the 2011 Honda Fit Hybrid in Japan in October 2010, and unveiled the European version, the Honda Jazz Hybrid, at the 2010 Paris Motor Show, which went on sale in some European markets by early 2011.
Mass production of the 2011 Toyota Auris Hybrid began in May 2010 at Toyota Manufacturing UK (TMUK) Burnaston plant and became the first mass-produced hybrid vehicle to be built in Europe. Sales in the UK began in July 2010, at a price starting atGB£18,950 (US$27,450), GB£550 (US$800) less than the Toyota Prius. The 2011 Auris Hybrid shares the same powertrain as the Prius, and combined fuel economy is 74.3 mpg-imp (3.80 L/100 km; 61.9 mpg-US).
The 2011 Lincoln MKZ Hybrid was unveiled at the 2010 New York International Auto Show and sales began in the U.S. in September 2010. The MKZ Hybrid is the first hybrid version ever to have the same price as the gasoline-engine version of the same car. The Porshe Cayenne Hybrid was launched in the U.S in late 2010.
Volkswagen announced at the 2010 Geneva Motor Show the launch of the 2012 Touareg Hybrid, which went on sale on the U.S. in 2011. VW also announced plans to introduce diesel-electric hybrid versions of its most popular models in 2012, beginning with the new Jetta, followed by the Golf Hybrid in 2013 together with hybrid versions of the Passat. Other gasoline-electric hybrids released in the U.S. in 2011 were the Lexus CT 200h, the Infiniti M35 Hybrid, the Hyundai Sonata Hybrid and its siblling the Kia Optima Hybrid.
The Peugeot 3008 HYbrid4 was launched in the European market in 2012, becoming the world's first production diesel-electric hybrid. According to Peugeot the new hybrid delivers a fuel economy of up to 62 miles per US gallon (3.8 L/100 km; 74 mpg-imp) and CO2 emissions of 99g/km on the European test cycle.
The Toyota Prius v, launched in the U.S. in October 2011, is the first spinoff from the Prius family. Sales in Japan began in May 2011 as the Prius Alpha. The European version, named Prius +, was launched in June 2012. The Prius Aqua was launched in Japan in December 2011, and was released as the Toyota Prius c in the U.S. in March 2012. The Prius c was launched in Australia in April 2012. The production version of the 2012 Toyota Yaris Hybrid went on sale in Europe in June 2012.
Other hybrids released in the U.S. during 2012 are the Audi Q5 Hybrid, BMW 5 Series ActiveHybrid, BMW 3 series Hybrid, Ford C-Max Hybrid, Acura ILX Hybrid. Also during 2012 were released the next generation of Toyota Camry Hybrid and the Ford Fusion Hybrid, both of which offer significantly improved fuel economy in comparison with their previous generations. The 2013 models of the Toyota Avalon Hybrid and the Volkswagen Jetta Hybrid were released in the U.S. in December 2012.
Global sales of the Toyota Prius liftback passed the 3 million milestone in June 2013. The Prius liftbak is available in almost 80 countries and regions, and it is the world's best-selling hybrid electric vehicle. Toyota released the hybrid versions of the Corolla Axio sedan and Corolla Fielder station wagon in Japan in August 2013. Both cars are equipped with a 1.5-liter hybrid system similar to the one used in the Prius c.
Sales of the Honda Vezel Hybrid SUV began in Japan began in December 2013. The Range Rover Hybrid diesel-powered electric hybrid was unveiled at the 2013 Frankfurt Motor Show, and retail deliveries in Europe are slated to start in early 2014.Ford Motor Company, the world's second largest manufacturer of hybrids after Toyota Motor Corporation, reached the milestone of 400,000 hybrid electric vehicles produced in November 2014. After 18 years since the introduction of hybrid cars, Japan became in 2014 the first country to reach sales of over 1 million hybrid cars in a single year, and also the Japanese market surpassed the United States as the world's largest hybrid market.
The redesigned and more efficiente fourth generation Prius was released for retail customers in Japan in December 2015. The launch in North American market is scheduled for January 2016, and February in Europe. The 2016 model year Prius Eco surpassed the 2000 first generation Honda Insight as the all-time EPA-rated most fuel efficient gasoline-powered car available in the U.S. without plug-in capability. In late 2017 Chevy introduced the Chevy ZH2 that runs off of hydrogen fuel cells. The ZH2 was built especially for the U.S.
As of January 2017 As of April 2016 , Japan ranked as the market leader with more than 5 million hybrids sold, followed by the United States with cumulative sales of over 4 million units since 1999, Europe with about 1.5 million, and the rest of the world with combined sales of over 500,000 hybrids. As of August 2014 , more than 130,000 hybrids have been sold in Canada, of which, over 100,000 are Toyota and Lexus models. In Australia, over 50,000 Lexus and Toyota models have been sold through February 2014., more than 12 million hybrid electric vehicles have been sold worldwide since their inception in 1997.
As of January 2017Toyota Motor Company (TMC) with over 10 million Lexus and Toyota hybrids sold; followed by Honda Motor Co., Ltd. with cumulative global sales of more than 1.35 million hybrids as of June 2014 ;Ford Motor Corporation with over 424,000 hybrids sold in the United States through June 2015, of which, around 10% are plug-in hybrids;Hyundai Group with cumulative global sales of 200,000 hybrids as of March 2014 , including both Hyundai Motors and Kia Motors hybrid models; and PSA Peugeot Citroën with over 50,000 diesel-powered hybrids sold in Europe through December 2013., global hybrid sales led by
TMC experienced record sales of hybrid cars during 2013, with 1,279,400 units sold worldwide, and it took nine months to achieve one million hybrid sales. Again in 2014, TMC sold a record one million hybrids in nine months. Toyota hybrids combined with Lexus models reached 1 million units in May 2007, and the U.S. reached the 1 million mark of sales of both brands by February 2009. Worldwide sales of TMC hybrids totaled over 2 million vehicles by August 2009, 3 million units by February 2011, 5 million in March 2013, 7 million in September 2014, and the 8 million mark in July 2015. The 9 million sales mark was reached in April 2016, again, selling one million hybrids in just ninth months, and the 10 million milestone in January 2017, achieved one more time just nine months after the previous million.
Ford experienced record sales of its hybrids models in the U.S. during 2013, with almost 80,000 units sold, almost triple the 2012 total. During the second quarter of 2013 Ford achieved its best hybrid sales quarter ever, up 517% over the same quarter of 2012. In 2013 Toyota's hybrid market share in the U.S. declined from 2012 totals due to new competition, particularly from Ford with the arrival of new products such as the C-Max Hybrid and the new styling of the Fusion. Except for the Prius c, sales of the other models of the Prius family and the Camry Hybrid suffered a decline from 2012, while the Fusion Hybrid experienced a 164.3% increase from 2012, and C-Max Hybrid sales climbed 156.6%. During 2013 Ford increased its market share of the American hybrid market from 7.5% in 2012 to 14.7% in 2013.
As of January 2017Prius family, with cumulative sales of 6.0361 million units (excluding plug-in hybrids) representing 60% of the 10 million hybrids sold worldwide by Toyota and Lexus since 1997. As of January 2017 , the Toyota Prius liftback is the leading model of the Toyota brand with cumulative sales of 3.985 million units. Ranking second is the Toyota Aqua/Prius c, with global sales of 1.380 million units, followed by the Prius v/?/+ with 671,200, the Camry Hybrid with 614,700 units, the Toyota Auris with 378,000 units, and the Toyota Yaris Hybrid with 302,700. U.S. sales of the Toyota Prius reached the 1.0 million milestone in early April 2011, and cumulative sales of the Prius in Japan exceeded the 1 million mark in August 2011. As of January 2017 , sales of the Prius liftback totaled over 1.8 million units in Japan and 1.75 million in the United States, ranking as the all-time best-selling hybrid car in both countries., global hybrid sales are led by the
Global sales of Lexus brand hybrid vehicles worldwide reached the 500 thousand mark in November 2012. The 1 million sales milestone was achieved in March 2016. The Lexus RX 400h/RX 450h ranks as the top-selling Lexus hybrid with 363,000 units delivered worldwide as of January 2017 , followed by the Lexus CT 200h with 290,800 units, and the Lexus ES 300h with 143,200 units.
|Country||Number of hybrids sold or registered by year|
|Japan||633,200(1)||Over 1 million||679,100(1)||678,000(1)||316,300(1)||392,200(1)||334,000||94,259||69,015|
|Canada||Not available||~15,000||~25,000||Not available||16,167||19,963||14,828|
|World||Over 1.2 million||Over 1.6 million||Over 1.3 million||Over 1.2 million||-||-||740,000||511,758||500,405|
|Notes: (1) Partial sales, includes only Toyota/Lexus sales. (2) French registrations between 2011 and 2013 include plug-in hybrids|
As of April 2016 After 18 years since their introduction in the Japanese market, annual hybrid sales surpassed the 1 million mark for the first time in 2014. With cumulative sales of over 4 million hybrids through December 2014, Japan surpassed the United States as the world's largest hybrid market. It was also the first time that all eight major Japanese manufacturers offered hybrid vehicles in their lineup., Japan ranks as the world's market leader with more than 5 million hybrids sold since 1997, representing around 45% of cumulative global hybrid sales since their inception.
Japan also has the world's highest hybrid market penetration. The hybrid market share of new car sales began to increase significantly in 2009, when the government implemented aggressive fiscal incentives for fuel efficient vehicles and the third generation Prius was introduced. That year, the hybrid market share of new car sales in the country, including kei cars, jumped from less than 5% in 2008 to over 10% in 2009. If only conventional passenger cars are accounted for, the hybrid market share was about 15%. By 2013 the hybrid market share accounted for more than 30% of the 2.9 million standard passenger vehicles sold, and about 20% of the 4.5 million passenger vehicles including kei cars. Sales of standard cars in 2016 totaled 1.49 million units, with the hybrid segment achieving a record 38% market share. Accounting for kei cars, hybrids achieved a market share of 25.7% of new passenger car sales, up from 22.3% in 2015. In 2016 every one of the standard cars listed in the Japanese top-20 best-selling car ranking had a hybrid version on sale. and the two top-selling standard cars were models available only as a hybrid, the Toyota Prius and the Toyota Aqua.
Toyota's hybrid sales in Japan since 1997, including both Toyota and Lexus models, passed the 1 million mark in July 2010, 2 million in October 2012, and topped the 3 million mark in March 2014. As of January 2017 , TMC hybrid sales in the country totaled 4,853,000 vehicles, of which, only 4,900 units are commercial vehicles. Cumulative sales of the original Prius in Japan reached the 1 million mark in August 2011. Sales of the Prius family vehicles totaled 3,435,800 units through January 2017. The Prius liftback is the top-selling model with 1,812,800 units, followed by the Aqua with 1,154,500 units, the Prius ? with 446,400, and the Prius plug-in with 22,100. Cumulative sales of Honda's hybrid vehicles since November 1999 reached 25,239 units by January 2009, and in March 2010, Honda announced that the new 2010 Insight broke through 100,000 sales in Japan in just one year after its introduction.
Hybrid sales in Japan almost tripled in 2009 as compared to 2008 as a result of government incentives that included a scrappage program, tax breaks on hybrid vehicles and other low-emission cars and trucks, and a higher levy on gasoline that rose prices in the order of US$4.50. New hybrid car sales jumped from 94,259 in 2008 to 334,000 in 2009, and hybrid sales in 2009 represented around 10% of new vehicles sales in Japan. In contrast, the U.S. market share was 2.8% for the same year. These record sales allowed Japan to surpass the U.S. in total new hybrid sales, with the Japanese market representing almost half (48%) of the worldwide hybrid sales in 2009 while the U.S. market represented 42% of global sales. The Toyota Prius became the first hybrid to top annual new car sales in Japan with 208,876 units sold in 2009. The Insight ranked fifth in overall sales in 2009 with 93,283 units sold.
A total of 315,669 Priuses were sold domestically in 2010, making the Prius the country's best-selling vehicle for the second straight year. Also the Prius broke Japan's annual sales record for a single model for the first time in 20 years, surpassing the Toyota Corolla, which in 1990 set the previous sales record with 300,008 units. The Prius sold 252,528 units in 2011, becoming the best-selling vehicle for the third-consecutive year. This figure includes sales of the Prius ?, launched in May 2011, and the Toyota Aqua, launched in December. Despite keeping to the top-selling spot, total Prius sales for 2011 were 20% lower than 2010 due partly to the disruptions caused by the March 2011 T?hoku earthquake and tsunami, and also because government incentives for hybrid cars were scaled back. Nevertheless, during the 2011 Japanese fiscal year (April 1, 2011 through March 31, 2012), hybrid vehicles accounted for 16% of all new car sales in the country. In May 2012, hybrid sales reached a record market share of 19.7% of new car sales in the country, including kei cars. Sales were led by the conventional Prius followed by the Toyota Aqua. Also during this month, hybrid sales represented 25% of Honda sales and 46% of Toyota sales in the country.
The Toyota Aqua, released in December 2011, ranked as the second top-selling new car in Japan in 2012 after the conventional Prius. Totaling 262,367 units sold in 2013, the Aqua topped new car sales in Japan in 2013, including kei car sales. And with 233,209 units sold during 2014, down 11.1% from 2013, the Aqua was the top-selling new car in Japan for the second consecutive year. Again in 2015, with 215,525 units sold, down 7.6% from 2014, the Aqua ranked as the top-selling new car in Japan. The Toyota Aqua not only was the best-selling new car in Japan for three years running, from 2013 to 2015, but it is considered the most successful nameplate launch in the Japanese market of the last 20 years. In the first quarter of 2016, the Prius liftback surpassed the Aqua as the best-selling new car, the Prius ended 2016 as the best-selling standard car in the Japanese market with 248,258 units, followed by the Aqua with 168,208 units.
The market of hybrid electric vehicles in the United States is the second largest in the world after Japan, and represents about 36% of the more than 11 million hybrid sold worldwide through April 2016. Cumulative sales passed 2 million units in May 2011, the 3 million mark in October 2013, and 4 million in April 2016. Sales of hybrid vehicles in the U.S. began to decline following the financial crisis of 2007-08, and after a short recovery, began to decline again in 2014 due to low gasoline prices. Hybrid sales in the American market achieved its highest market share ever in 2013, capturing 3.19% of new car sales that year. At the end of 2015 the hybrid take rate had fallen to 2.21%, dropped to 1.99% in 2016, and slightly recovered to 2.13% in 2017.
Since their inception in 1999, a total of 4,058,258 hybrid electric automobiles and sport utility vehicles have been sold in the country through May 2016. The Toyota Prius family is the market leader with 1,932,805 units sold through April 2016, representing a 48.0% market share of total hybrid sales. The conventional Toyota Prius is the top-selling hybrid model, with 1,643,000 units sold through April 2016, accounting for 40.8% of all hybrids sold in the U.S. since inception. The United States accounted for 44.7% of Toyota Motor Company global hybrid sales through April 2016.
As of April 2016Toyota Camry Hybrid, with 345,640 units sold since 2006, the Honda Civic Hybrid, with cumulative sales of 234,610 vehicles since 2002, the Ford Fusion Hybrid with 166,341 units since 2009, and the Toyota Prius c with 165,075 units since 2012. Among the hybrids built by American manufacturers, the siblings Lincoln MKZ/Mercury Milan/Fusion Hybrids rank first, with combined sales of 200,899 units since 2009 through 2015., sales of the conventional Prius are followed by the
California has been the state leading hybrid sales in the U.S. with 55,553 vehicles sold in 2009, 74,932 in 2008, and 91,417 in 2007. In 2009 it was followed by New York (15,438) and Florida (14,949). The top 5 U. S. metropolitan area markets for sales of hybrid electric vehicles in 2009 were Los Angeles (26,677), New York (21,193), San Francisco (15,799), Washington, D.C. (11,595), and Chicago (8,990). The Prius became the best selling vehicle in California in 2012. Again in 2013, the Prius nameplate was the best selling vehicle in California with 69,728 units sold.
As of April 2016 Of these, Toyota and Lexus hybrids totaled around 1.1 million units (74%).PSA Peugeot Citroën had sold over 50,000 diesel-powered hybrids in Europe through December 2013. In 2014, one-fourth of all new vehicles sold by Toyota in the European Union were hybrid-electric. The top-selling hybrid markets in 2015 were France, followed by the UK, Italy, Germany, Spain, the Netherlands, and Norway., about 1.5 million hybrids cars have been sold in Europe since their introduction, representing around 13.6% of cumulative global hybrid sales.
As of December 2014EU Member States, up from 1.1% in 2012. The Netherlands is the leading country within the Union states with a market share of 3.7% of total passenger car sales in 2014, though fewer hybrid vehicles were sold in the Dutch market in 2014 than in previous years. Accounting for all countries in the continent, Norway is the segment leader, with a market share of 6.9% in 2014., hybrid vehicles accounted for 1.4% of new passenger car registrations in the
Sales of hybrids in Europe went up from around 9,000 units in 2004 to 39,880 in 2006, with Toyota accounting for 91% of hybrid sales and Honda with 3,410 units sold that year. Cumulative sales of Toyota hybrids since 2000 reached 69,674 units in 2006, while Honda hybrid sales reached over 8,000 units. By January 2009, Honda had sold 35,149 hybrids in Europe, of which 34,757 were Honda Civic Hybrids. During 2008 combined sales of Toyota and Lexus hybrids in Europe were 57,819 units, representing 5.2% of total Toyota sales in the region. Toyota sales were led by Prius with 41,495 units. Cumulative sales of the Toyota Prius reached 100,000 units in 2008 and the 200,000 mark was reached in July 2010. The UK has been one of the leading European markets for the Prius since its inception, with 20% of Prius sales in Europe by 2010.
Toyota's European hybrid sales reached 70,529 vehicles in 2010, including sales of 15,237 Toyota Auris Hybrids. Sales reached 84,839 units in 2011, including 59,161 Toyota and 25,678 Lexus hybrid vehicles. The Auris hybrid sold 32,725 units in 2011. Lexus hybrids made up 85% of total sales in Western Europe in 2011. Toyota and Lexus hybrids represented 10% percent of Toyota's European new car sales in 2011. TMC share of hybrid sales out of the company's total European sales climbed from 13% in 2012 to 20% during the first 11 months of 2013.
During the first nine months of 2013, over 118,000 hybrids were sold in Western Europe representing a 1.4% market share of new car sales in the region. A total of 192,664 hybrid cars were sold in the European Union and EFTA countries in 2014. Sales increased 21.5% in 2015, with 234,170 units sold. In 2015, gasoline-powered hybrids represented 91.6% of total hybrid registrations. The top-selling model in 2015 was the Toyota Auris Hybrid, with 75,810 units, up 13.0% from 2014; followed by the Yaris Hybrid with 68,902 units, up 22% from 2014. Seven of the top ten hybrids models sold in 2015 were from either Toyota or the Lexus brand. Toyota achieved record hybrid sales in 2015 with 201,500 units delivered. Hybrid registrations in the European Union and EFTA countries totaled 74,796 units during the first quarter of 2016, up 29.7% from the same quarter the previous year.
Cumulative TMC sales since the Prius introduction in Europe in 2000 passed the one million unit milestone in November 2015. As of December 2017 , the top-selling Toyota hybrids were the Auris Hybrid (427,600), the Yaris Hybrid (388,900), and the conventional Prius (299,100). The top-selling Lexus models are the Lexus RX 400h/RX 450h with 111,100 units, and the Lexus CT 200h with 78,100 units.
Since 2006 hybrid car registrations in the UK totaled 257,404 units up to April 2016, including 11,679 diesel-electric hybrids, which were introduced in 2011. The market share of the British hybrid segment climbed from 1.1% in 2010, to 1.2% in 2012, and achieved 1.5% of new car registrations in 2014.
Since 2000, when the Prius was launched in the UK, 100,000 Toyota hybrids had been sold by May 2014, and almost 50,000 Lexus models since the introduction of the RX 400h in 2005. Honda had sold in the UK more than 22,000 hybrid cars through December 2011 since the Insight was launched in the country in 2000. After 15 years since the launch of the Prius in the British market, combined sales of Toyota and Lexus hybrids reached the 200,000 unit milestone in November 2015.
A total of 37,215 hybrids were registered in 2014, and while petrol-electric hybrids increased 32.6% from 2013, diesel-electric hybrids declined 12.6%. Hybrid registrations totaled a record of 44,580 units in 2015, consisting of 40,707 petrol-powered hybrids and 3,873 powered by diesel; the latter experienced a 36.3% increase from 2014, while petrol-powered hybrid grew by 18.1%. The hybrid segment market shared reached 1.69% of new car registrations in the UK that year.
A total of 165,915 hybrid cars have been registered in France between 2007 and 2014, including 33,547 diesel-powered hybrids. French registrations account plug-in hybrid together with conventional hybrids. Among EU Member States, France had the second largest hybrid market share in 2014, with 2.3% of new car sales, down from 2.6% in 2013.
Diesel hybrid technology, introduced by PSA Peugeot Citroën with the HYbrid4 system in 2011, represented 20.2% of the hybrid car stock sold in France between 2011 and 2014. Among the 13,340 units registered in 2011, the top-selling models in the French market were the Toyota Auris (4,740 units), the Prius (2,429 units), and the Honda Jazz Hybrid (1,857 units). The diesel-powered Peugeot 3008 HYbrid4, launched in late 2011, sold 401 units. Toyota led hybrid sales in the French market in 2013 with 27,536 registrations of its Yaris, Auris and Prius models, followed by the PSA group with 13,400 registrations. During 2014, a total of 42,813 hybrid cars and vans were registered, down 8.5% from 2013. Of these, 9,518 were diesel-electric hybrids, down 31.9% from 13,986 units a year earlier, while registrations of gasoline-electric hybrids were up 1.5%. The top-selling models in 2014 were the Toyota Yaris Hybrid with 12,819 units, Toyota Auris with 10,595 and the Peugeot 3008 with 4,189 units. Hybrid registrations in 2014 included 1,519 plug-in hybrids, with sales led by the Mitsubishi Outlander P-HEV, with 820 units.
As of 31 December 2015 By the end of 2009 there were about 39,300 hybrid cars registered in the Netherlands, up from 23,000 the previous year. Most of the registered hybrid cars belonged to corporate fleets due to tax incentives established in the country in 2008. During the first eight months of 2013, around 65% of TMC cars sold in the Netherlands have been hybrids, with the technology particularly popular among fleet owners and taxi drivers. Following the same market trend as in 2014, more plug-in hybrids were registered in 2015 (41,226) in the country than conventional hybrids (13,752)., hybrid car registrations totaled 131,011 units, up 11.7% from 117,259 a year earlier.
As a result of the tax incentives, the country has had for several years the highest hybrid market share among EU Member States. Hybrid sales climbed from 0.7% in 2006 and 2007 to 2.4% in 2008, and reached 4.2% in 2009. Due to the financial crisis of 2007-08, the market fell for two years to 2.7% in 2011, but recovered to 4.5% in 2012. As fewer hybrid vehicles were sold in the Dutch market in 2014 than in previous years, the hybrid segment market share fell to 3.7% of total passenger car sales in 2014. The sales decline is due to a change in the national vehicle taxation scheme. As of 2014 , Japan (~20%) and Norway (6.9%) are the only countries with a higher market share than the Netherlands.
As of January 2016 up from 85,575 on the roads in January 1, 2014, and 47,642 vehicles on January 1, 2012. Hybrid car registrations totaled a record of 24,963 units in 2013, and declined to 22,908 in 2014, and to 22,529 in 2015. The German hybrid market share climbed from 0.3% in 2010, to 0.8% in 2013, and declined 0.7% of new car registrations in 2014., there where were 130,365 hybrid cars registered in Germany,
A total of 10,350 hybrid cars were registered in Spain in 2011, up 22% from 2010 sales. The top-selling hybrids were the Toyota Prius, Toyota Auris HSD and the Lexus CT 200h, which together represented 83,2% of new hybrid car sales in the country. During 2012 hybrid sales remained almost constant with 10,030 units sold, representing 1.44% of new passenger cars sales that year. The top-selling car was the Prius with 3,969 units, followed by the Auris HSD (2,234) and the Lexus CT 200h (1,244). Combined sales of Toyota and Lexus models represented 89.15% of hybrid sales in the Spanish market in 2012. Hybrid sales in 2013 increased 1.72% from 2012, with 10,294 units registered. The Toyota Auris HSD was the top-selling hybrid with 3,644 units, followed by the Prius (2,378) and the Yaris Hybrid (1,587 ).
The varieties of hybrid electric designs can be differentiated by the structure of the hybrid vehicle drivetrain, the fuel type, and the mode of operation.
In 2007, several automobile manufacturers announced that future vehicles will use aspects of hybrid electric technology to reduce fuel consumption without the use of the hybrid drivetrain. Regenerative braking can be used to recapture energy and stored to power electrical accessories, such as air conditioning. Shutting down the engine at idle can also be used to reduce fuel consumption and reduce emissions without the addition of a hybrid drivetrain. In both cases, some of the advantages of hybrid electric technology are gained while additional cost and weight may be limited to the addition of larger batteries and starter motors. There is no standard terminology for such vehicles, although they may be termed mild hybrids.
Gasoline engines are used in most hybrid electric designs and will likely remain dominant for the foreseeable future. While petroleum-derived gasoline is the primary fuel, it is possible to mix in varying levels of ethanol created from renewable energy sources. Like most modern ICE powered vehicles, HEVs can typically use up to about 15% bioethanol. Manufacturers may move to flexible fuel engines, which would increase allowable ratios, but no plans are in place at present.
Diesel-electric HEVs use a diesel engine for power generation. Diesels have advantages when delivering constant power for long periods of time, suffering less wear while operating at higher efficiency. The diesel engine's high torque, combined with hybrid technology, may offer substantially improved mileage. Most diesel vehicles can use 100% pure biofuels (biodiesel), so they can use but do not need petroleum at all for fuel (although mixes of biofuel and petroleum are more common). If diesel-electric HEVs were in use, this benefit would likely also apply. Diesel-electric hybrid drivetrains have begun to appear in commercial vehicles (particularly buses); as of 2007 , no light duty diesel-electric hybrid passenger cars are available, although prototypes exist. Peugeot is expected to produce a diesel-electric hybrid version of its 308 in late 2008 for the European market.
PSA Peugeot Citroën has unveiled two demonstrator vehicles featuring a diesel-electric hybrid drivetrain: the Peugeot 307, Citroën C4 Hybride HDi and Citroën C-Cactus.Volkswagen made a prototype diesel-electric hybrid car that achieved 2 L/100 km (140 mpg-imp; 120 mpg-US) fuel economy, but has yet to sell a hybrid vehicle. General Motors has been testing the Opel Astra Diesel Hybrid. There have been no concrete dates suggested for these vehicles, but press statements have suggested production vehicles would not appear before 2009.
At the Frankfurt Motor Show in September 2009 both Mercedes and BMW displayed diesel-electric hybrids.
FedEx, along with Eaton Corp. in the USA and Iveco in Europe, has begun deploying a small fleet of Hybrid diesel electric delivery trucks. As of October 2007, Fedex operates more than 100 diesel electric hybrids in North America, Asia and Europe.
Hydrogen can be used in cars in two ways: a source of combustible heat, or a source of electrons for an electric motor. The burning of hydrogen is not being developed in practical terms; it is the hydrogen fuel-cell electric vehicle (HFEV) which is garnering all the attention. Hydrogen fuel cells create electricity fed into an electric motor to drives the wheels. Hydrogen is not burned, but it is consumed. This means molecular hydrogen, H2, is combined with oxygen to form water. 2H2 (4e-) + O2 --> 2H2O (4e-). The molecular hydrogen and oxygen's mutual affinity drives the fuel cell to separate the electrons from the hydrogen, to use them to power the electric motor, and to return them to the ionized water molecules that were formed when the electron-depleted hydrogen combined with the oxygen in the fuel cell. Recalling that a hydrogen atom is nothing more than a proton and an electron; in essence, the motor is driven by the proton's atomic attraction to the oxygen nucleus, and the electron's attraction to the ionized water molecule.
An HFEV is an all-electric car featuring an open-source battery in the form of a hydrogen tank and the atmosphere. HFEVs may also comprise closed-cell batteries for the purpose of power storage from regenerative braking, but this does not change the source of the motivation. It implies the HFEV is an electric car with two types of batteries. Since HFEVs are purely electric, and do not contain any type of heat engine, they are not hybrids.
Hybrid vehicles might use an internal combustion engine running on biofuels, such as a flexible-fuel engine running on ethanol or engines running on biodiesel. In 2007 Ford produced 20 demonstration Escape Hybrid E85s for real-world testing in fleets in the U.S. Also as a demonstration project, Ford delivered in 2008 the first flexible-fuel plug-in hybrid SUV to the U.S. Department of Energy (DOE), a Ford Escape Plug-in Hybrid, capable of running on gasoline or E85.
The Chevrolet Volt plug-in hybrid electric vehicle would be the first commercially available flex-fuel plug-in hybrid capable of adapting the propulsion to the biofuels used in several world markets such as the ethanol blend E85 in the U.S., or E100 in Brazil, or biodiesel in Sweden. The Volt will be E85 flex-fuel capable about a year after its introduction.
In split path vehicles (Toyota, Ford, GM, Chrysler) there are two electrical machines, one of which functions as a motor primarily, and the other functions as a generator primarily. One of the primary requirements of these machines is that they are very efficient, as the electrical portion of the energy must be converted from the engine to the generator, through two inverters, through the motor again and then to the wheels.
Most of the electric machines used in hybrid vehicles are brushless DC motors (BLDC). Specifically, they are of a type called an interior permanent magnet (IPM) machine (or motor). These machines are wound similarly to the induction motors found in a typical home, but (for high efficiency) use very strong rare-earth magnets in the rotor. These magnets contain neodymium, iron and boron, and are therefore called Neodymium magnets.
The price of Neodymium went through a price bubble due to Chinese export restriction in 2010-11, rising from $50/kg at the start of 2010 to $500/kg by the summer of 2011. This resulted in 'demand destruction' as many producers quickly turned to substituting induction motors in their cars to defend their production line. This was in spite of such motors inferior 'power to weight' ratio attributes significantly impacting all but the most powerful (energy guzzling) motor sizes, e.g. those used in the Tesla. As of April 2014 there are other non-Chinese producers of Neodymium and its price/kg is not much more than it was in 2010. Cutting edge U.K. motors that are now being produced are using Neodymium Permanent Magnet technology. As security of supply returns, it is certain that there will accordingly be a return to superior motor designs that NdFeB Permanent Magnets enable.
In some cases, manufacturers are producing HEVs that use the added energy provided by the hybrid systems to give vehicles a power boost, rather than significantly improved fuel efficiency compared to their traditional counterparts. The trade-off between added performance and improved fuel efficiency is partly controlled by the software within the hybrid system and partly the result of the engine, battery and motor size. In the future, manufacturers may provide HEV owners with the ability to partially control this balance (fuel efficiency vs. added performance) as they wish, through a user-controlled setting. Toyota announced in January, 2006 that it was considering a "high-efficiency" button.
Electric hybrids reduce petroleum consumption under certain circumstances, compared to otherwise similar conventional vehicles, primarily by using three mechanisms:
Any combination of these three primary hybrid advantages may be used in different vehicles to realize different fuel usage, power, emissions, weight and cost profiles. The ICE in an HEV can be smaller, lighter, and more efficient than the one in a conventional vehicle, because the combustion engine can be sized for slightly above average power demand rather than peak power demand. The drive system in a vehicle is required to operate over a range of speed and power, but an ICE's highest efficiency is in a narrow range of operation, making conventional vehicles inefficient. On the contrary, in most HEV designs, the ICE operates closer to its range of highest efficiency more frequently. The power curve of electric motors is better suited to variable speeds and can provide substantially greater torque at low speeds compared with internal-combustion engines. The greater fuel economy of HEVs has implication for reduced petroleum consumption and vehicle air pollution emissions worldwide
Many hybrids use the Atkinson cycle, which gives greater efficiency, but less power for the size of engine.
Reduced noise emissions resulting from substantial use of the electric motor at idling and low speeds, leading to roadway noise reduction, in comparison to conventional gasoline or diesel powered engine vehicles, resulting in beneficial noise health effects (although road noise from tires and wind, the loudest noises at highway speeds from the interior of most vehicles, are not affected by the hybrid design alone). Reduced noise may not be beneficial for all road users, as blind people or the visually impaired consider the noise of combustion engines a helpful aid while crossing streets and feel quiet hybrids could pose an unexpected hazard. Tests have shown that vehicles operating in electric mode can be particularly hard to hear below 20 mph (32 km/h).
A 2009 study conducted by the NHTSA found that crashes involving pedestrian and bicyclist have higher incidence rates for hybrids than internal combustion engine vehicles in certain vehicle maneuvers. These accidents commonly occurred on in zones with low speed limits, during daytime and in clear weather.
In January 2010 the Japanese Ministry of Land, Infrastructure, Transport and Tourism issued guidelines for hybrid and other near-silent vehicles. The Pedestrian Safety Enhancement Act of 2010 was approved by the U.S. Congress in December 2010, and the bill was signed into law by President Barack Obama on January 4, 2011. A proposed rule was published for comment by the National Highway Traffic Safety Administration (NHTSA) in January, 2013. It would require hybrids and electric vehicles traveling at less than 18.6 mph (30 km/h) to emit warning sounds that pedestrians must be able to hear over background noises. The rules are scheduled to go into effect in September 2014. In April 2014 the European Parliament approved legislation that requires the mandatory use of Acoustic Vehicle Alerting Systems (AVAS) for all new electric and hybrid electric vehicles, and car manufacturers have to comply within 5 years.
As of mid-2010, and in advance of upcoming legislation, some carmakers announced their decision to address this safety issue shared by regular hybrids and all types of plug-in electric vehicles, and as a result, the Nissan Leaf and Chevrolet Volt, both launched in late 2010, and the Nissan Fuga hybrid and the Fisker Karma plug-in hybrid, both launched in 2011, include synthesized sounds to alert pedestrians, the blind and others to their presence. Toyota introduced its Vehicle Proximity Notification System (VPNS) in the United States in all 2012 model year Prius family vehicles, including the Prius v, Prius Plug-in Hybrid and the standard Prius.
There is also aftermarket technology available in California to make hybrids sound more like conventional combustion engine cars when the vehicle goes into the silent electric mode (EV mode). On August 2010 Toyota began sales in Japan of an onboard device designed to automatically emit a synthesized sound of an electric motor when the Prius is operating as an electric vehicle at speeds up to approximately 25 kilometres per hour (16 mph). Toyota plans to use other versions of the device for use in gasoline-electric hybrids, plug-in hybrids, electric vehicles as well as fuel-cell hybrid vehicles planned for mass production.
Battery toxicity is a concern, although today's hybrids use NiMH batteries, not the environmentally problematic rechargeable nickel cadmium. "Nickel metal hydride batteries are benign. They can be fully recycled," says Ron Cogan, editor of the Green Car Journal.[this quote needs a citation] Toyota and Honda say that they will recycle dead batteries and that disposal will pose no toxic hazards. Toyota puts a phone number on each battery, and they pay a $200 "bounty" for each battery to help ensure that it will be properly recycled.
The following table shows the fuel economy ratings and pollution indicators for the top ten most fuel efficient hybrids rated by the U.S. Environmental Protection Agency as of June 2016 , for model year 2015 and 2016 available in the American market.
|Toyota Prius Eco||2016||56||58||53||US$650||158||NA||5.9|
|Toyota Prius (4th gen)||2016||52||54||50||US$700||170||NA||6.3|
|Toyota Prius c||2015/16||50||53||46||US$700||178||7/8*||6.6|
|Toyota Prius (3rd gen)||2015||50||51||48||US$700||179||7/9*||6.6|
|Honda Accord (2nd gen)||2015||47||50||45||US$750||188||7/8*||7.0|
|Chevrolet Malibu Hybrid||2016||46||47||46||US$750||212||7/8*||7.8|
|Honda Civic Hybrid (3rd gen)||2015||45||4 4||47||US$800||196||7/9*||7.3|
|Volkswagen Jetta Hybrid||2015||45||42||48||US$950||200||7/9*||7.3|
|Ford Fusion (2nd gen)||2015/16||42||44||41||US$850||211||7/9*||7.8|
|Toyota Prius v||2015/16||42||44||40||US$850||211||7/8*||7.8|
|Source: U.S. Department of Energy and U.S. Environmental Protection Agency
Notes: (1) Estimates assumes 15,000 miles (24,000 km) per year (45% highway, 55% city) using average fuel price of US$2.34/gallon for regular gasoline and US$2.57/gallon for premium gasoline
(national average as of 7 June 2016 ). (2) All states except California and Northeastern states, * otherwise.
Companies such as Zero Motorcycles and Vectrix have market-ready all-electric motorcycles available now, but the pairing of electrical components and an internal combustion engine (ICE) has made packaging cumbersome, especially for niche brands.
Peugeot HYmotion3 compressor, a hybrid scooter is a three-wheeler that uses two separate power sources to power the front and back wheels. The back wheel is powered by a single cylinder 125 cc, 20 bhp (15 kW) single cylinder motor while the front wheels are each driven by their own electric motor. When the bike is moving up to 10 km/h only the electric motors are used on a stop-start basis reducing the amount of carbon emissions.
SEMA has announced that Yamaha is going to launch one in 2010, with Honda following a year later, fueling a competition to reign in new customers and set new standards for mobility. Each company hopes to provide the capability to reach 60 miles (97 km) per charge by adopting advanced lithium-ion batteries to accomplish their claims. These proposed hybrid motorcycles could incorporate components from the upcoming Honda Insight car and its hybrid powertrain. The ability to mass-produce these items helps to overcome the investment hurdles faced by start-up brands and bring new engineering concepts into mainstream markets.
As emissions regulations become tougher for manufacturers to adhere to, a new generation of high-performance cars will be powered by hybrid technology (for example the Porsche GT3 hybrid racing car). Aside from the emissions benefits of a hybrid system, the immediately available torque which is produced from electric motor(s) can lead to performance benefits by addressing the power curve weaknesses of a traditional combustion engine. Hybrid racecars have been very successful, as is shown by the Audi R18 and Porsche 919, which have won the 24 hours of Le Mans using hybrid technology.
In 2000, North America's first hybrid electric taxi was put into service in Vancouver, British Columbia, operating a 2001 Toyota Prius which traveled over 332,000 km (206,000 mi) before being retired. In 2015, a taxi driver in Austria claimed to have covered 1,000,000 km (620,000 mi) in his Toyota Prius with the original battery pack.
Many of the major cities in the world are adding hybrid taxis to their taxicab fleets, led by San Francisco and New York City. By 2009 15% of New York's 13,237 taxis in service are hybrids, the most in any city in North America, and also began retiring its original hybrid fleet after 300,000 and 350,000 miles (480,000 and 560,000 km) per vehicle. Other cities where taxi service is available with hybrid vehicles include Tokyo, London, Sydney, Melbourne, and Rome.
Hybrid technology for buses has seen increased attention since recent battery developments decreased battery weight significantly. Drivetrains consist of conventional diesel engines and gas turbines. Some designs concentrate on using car engines, recent designs have focused on using conventional diesel engines already used in bus designs, to save on engineering and training costs. As of 2007, several manufacturers were working on new hybrid designs, or hybrid drivetrains that fit into existing chassis offerings without major re-design. A challenge to hybrid buses may still come from cheaper lightweight imports from the former Eastern block countries or China, where national operators are looking at fuel consumption issues surrounding the weight of the bus, which has increased with recent bus technology innovations such as glazing, air conditioning and electrical systems. A hybrid bus can also deliver fuel economy though through the hybrid drivetrain. Hybrid technology is also being promoted by environmentally concerned transit authorities.
In 2003, GM introduced a hybrid diesel-electric military (light) truck, equipped with a diesel electric and a fuel cell auxiliary power unit. Hybrid electric light trucks were introduced in 2004 by Mercedes Benz (Sprinter) and Micro-Vett SPA (Daily Bimodale). International Truck and Engine Corp. and Eaton Corp. have been selected to manufacture diesel-electric hybrid trucks for a US pilot program serving the utility industry in 2004. In mid-2005 Isuzu introduced the Elf Diesel Hybrid Truck on the Japanese Market. They claim that approximately 300 vehicles, mostly route buses are using Hinos HIMR (Hybrid Inverter Controlled Motor & Retarder) system. In 2007, high petroleum price means a hard sell for hybrid trucks and appears the first U.S. production hybrid truck (International DuraStar Hybrid).
Other vehicles are:
By a voice vote, the United States House of Representatives approved the Heavy Duty Hybrid Vehicle Research, Development, and Demonstration Act of 2009 ( for heavy duty plug-in hybrid vehicles) authored by representative James Sensenbrenner.
Some 70 years after Porsche's pioneering efforts in hybrid-drivetrain armored fighting vehicles in World War II, the United States Army's manned ground vehicles of the Future Combat System all use a hybrid electric drive consisting of a diesel engine to generate electrical power for mobility and all other vehicle subsystems. However, all FCS land vehicles were put on hold in the 2010 DOD budget. Other military hybrid prototypes include the Millenworks Light Utility Vehicle, the International FTTS, HEMTT model A3, and the Shadow RST-V.
In May 2003, JR East started test runs with the so-called NE (new energy) train and validated the system's functionality (series hybrid with lithium-ion battery) in cold regions. In 2004, Railpower Technologies had been running pilots in the US with the so-called Green Goats, which led to orders by the Union Pacific and Canadian Pacific Railways starting in early 2005.
Railpower offers hybrid electric road switchers, as does GE.Diesel-electric locomotives may not always be considered HEVs, not having energy storage on board, unless they are fed with electricity via a collector for short distances (for example, in tunnels with emission limits), in which case they are better classified as dual-mode vehicles.
For large boats that are already diesel-electric, the upgrade to hybrid can be as straightforward as adding a large battery bank and control equipment; this configuration can provide fuel saving for the operators as well as being more environmentally sensitive.
Producers of marine hybrid propulsion include:
Boeing has stated that for the subsonic concept, hybrid electric engine technology is a clear winner. Hybrid electric propulsion has the potential to shorten takeoff distance and reduce noise. The AgustaWestland Project Zero is one aircraft that is intended to be hybrid-electric.
The DA36 E-Star, an aircraft designed by Siemens, Diamond Aircraft and EADS, employs a series hybrid powertrain with the propeller being turned only by a Siemens 70 kW (94 hp) electric motor. The aim is to reduce fuel consumption and emissions by up to 25%. An onboard 40 hp (30 kW) Austro Engines Wankel rotary engine and generator provides the electricity because of the small size, light weight and high power-to-weight ratio of the engines. The electric motor also uses electricity stored in batteries to take off and climb reducing sound emissions by eliminating the engine. The series hybrid powertrain using the Wankel engine reduces the weight of the plane by 100 kilos to its predecessor. The DA36 E-Star first flew in June 2013, making this the first ever flight of a series hybrid powertrain. Diamond aircraft state that the technology using Wankel engines is scalable to a 100-seater aircraft.
|Vehicle type||Fuel used|
|All-petroleum vehicle||Most use of petroleum|
|Regular hybrid electric vehicle||Less use of petroleum, but unable to be plugged in|
|Plug-in hybrid vehicle||Residual use of petroleum. More use of electricity|
|All-electric vehicle||Most use of electricity|
HEVs can be initially more expensive (the so-called "hybrid premium") than pure fossil-fuel-based ICE vehicles, due to extra batteries, more electronics and in some cases other design considerations (although battery renting can be used to reach the cost parity). The trade-off between higher initial cost (also called showroom costs) and lower fuel costs (difference often referred to as the payback period) is dependent on usage - miles traveled, or hours of operation, fuel costs, and in some cases, government subsidies. Traditional economy vehicles may result in a lower direct cost for many users (before consideration of any externality).
Consumer Reports ran an article in April 2006 stating that HEVs would not pay for themselves over 5 years of ownership. However, this included an error with charging the "hybrid premium" twice. When corrected, the Honda Civic Hybrid and Toyota Prius did have a payback period of slightly less than 5 years. This includes conservative estimates with depreciation (seen as more depreciation than a conventional vehicle, although that is not the prevailing norm) and with progressively higher gas prices. In particular, the Consumer Reports article assumed $2/U.S. gallon for 3 years, $3/U.S. gallon for one year and $4/U.S. gallon the last year. As recent events have shown, this is a volatile market and hard to predict. For 2006, gas prices ranged from low $2 to low $3, averaging about $2.60/U.S. gallon.
A January 2007 analysis by Intellichoice.com shows that all 22 available HEVs will save their owners money over a five-year period. The most savings is for the Toyota Prius, which has a five-year cost of ownership 40.3% lower than the cost of comparable non-hybrid vehicles.
A report in the Greeley Tribune says that over the five years it would typically take for a new car owner to pay off the vehicle cost differential, a hybrid Camry driver could save up to US$6,700 in gasoline at June 2007 gasoline prices, with hybrid tax incentives as an additional saving.
In countries with incentives to fight against global warming and contamination and promote vehicle fuel efficiency, the pay-back period can be immediate, and all-combustion-engine vehicles can cost more than hybrids because they generate more pollution.
Toyota and Honda have already said they've halved the incremental cost of electric hybrids and see cost parity in the future (even without incentives).
This section needs to be updated.(August 2013)
However, nearly all the rare-earth elements in the world come from China, and one analyst believes that an overall increase in Chinese electronics manufacturing may consume this entire supply by 2012. In addition, export quotas on Chinese rare-earth exports have resulted in a generally shaky supply of those metals.
A few non-Chinese sources such as the advanced Hoidas Lake project in northern Canada and Mt Weld in Australia were under development, however it is not known if these sources will be developed before a shortage hits.
Residents of Ontario and Quebec in Canada can claim a rebate on the Provincial Retail Sales Tax of up to $2,000 CDN on the purchase or lease of a hybrid electric vehicle. Ontario has a green license plate for hybrid car users and was to announce a slew of benefits to go along with it in 2008. Residents in British Columbia are eligible for a 100% reduction of sales tax up to a maximum of $2,000 if the hybrid electric vehicle is purchased or leased before April 1, 2011, (extended in 2007/2008 budget from March 31, 2008, and expanded from a maximum of only $1,000 from April 1, 2008, to March 31, 2009, at which point the concession was scheduled to expire.) Prince Edward Island residents can claim rebates on the Provincial Sales Tax of up to $3,000 CDN on the purchase or lease of any hybrid vehicles since March 30, 2004.
In Haifa, hybrid vehicles are entitled to a free parking in city's parking lots for domestic citizens. Other cities, such as Petah-Tikva, have quickly adopted similar free parking for hybrid cars.
In 2009 the Japanese government implemented a set of policies and incentives that included a scrappage program, tax breaks on hybrid vehicles and other low emission cars and trucks, and a higher levy on gasoline that raised prices in the order of USD 4.50 per gallon. New hybrid car sales for 2009 were almost triple those for 2008.
In Jordan, customs and sales tax reduced for all hybrid vehicles from 55% to 25% of the vehicle list price, 12.5% customs fees and sales tax, if the new hybrid is a replacement for an old car (more than 10 years age). However, in March 2018, the government resorted to imposing the 55% customs and sales tax back again in its efforts to increase revenue.
In Malaysia, since mid 2014 all (CBU) fully imported hybrid and EV cars sold in Malaysia gets significantly increase of price after the CBU hybrid and EV incentive package that expired on December 31, 2013. The cars that effected are Toyota Prius, Toyota Prius c, Honda Civic Hybrid, Honda Insight, Honda CR-Z, Lexus CT200h, Audi A6 Hybrid, Mitsubishi i-MiEV and Nissan Leaf. However the exemption of excise duties and import taxes for hybrids and EV will be extended for models that are (CKD) assembled in Malaysia. The exemption will be extended until December 31, 2015 for hybrids and December 31, 2017 for EVs. Only the locally assembled Honda Jazz Hybrid, Mercedes-Benz S400 L Hybrid, Toyota Camry Hybrid and the facelifted Nissan Serena S-Hybrid are entitled for hybrid inducements.
In Christchurch, hybrid vehicles are entitled to an hour free parking in city council parking buildings. Where those buildings already provide an hour free, hybrid vehicles are entitled to an extra hour free.
In the Republic of Ireland, a discount of up to EUR1500 on VRT for hybrids, and up to EUR2500 for plugin hybrids is available until 31 December 2012. Previously there was a potential reduction of 50% of VRT applicable before July 2008, when VRT rates were based on engine size, rather than the CO2 emissions system.
In Sweden there is an "Eco car" subsidy of SEK 10 000 (~ USD 1.600) cash payout to private car owners. For fringe benefit cars there is a reduction of the benefit tax of 40% for EVs & HEVs and 20% for other "Eco cars".
Drivers of HEVs in the United Kingdom benefit from the lowest band of vehicle excise duty (car tax), which is based on carbon dioxide emissions. In central London, these vehicles are also exempt from the £11.5 daily London congestion charge. Due to their low levels of regulated emissions, the greenest cars are eligible for 100% discount under the incentive system. To be eligible the car had to be on the Power Shift Register. As of 2007 , these included the cleanest LPG and natural gas cars and most hybrid-, battery- and fuel cell-electric vehicles.
Through to December 31, 2010, the IRS permitted the purchaser of a hybrid electric car a federal income tax credit up to $3,400. The tax credit was to be phased out two calendar quarters after the manufacturer reached 60,000 new cars sold in the following manner: it was reduced to 50% if delivered in either the third or fourth quarter after the threshold was reached, to 25% in the fifth and sixth quarters, and 0% thereafter.
As of April 2010, three auto manufactures reached the 60,000 cap; Toyota Motor Company reached it in 2007, Honda in 2008, and as of April 1, 2010, no Ford Motor Company hybrid vehicles remained eligible for this tax credit. Vehicles purchased after December 31, 2010 are not eligible for this credit, as this benefit will expire on this date.
This latest milestone of 10 million units was achieved just nine months after total sales reached 9 million units at the end of April 2016.
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