Audi hybrid vehicles are hybrid electric vehicles created by the German carmaker, Audi AG. Some vehicles listed were concept vehicles, which utilised an internal combustion engine and an electric motor, and were used for research and development (R&D) for potential future use of the technology into possible series production.
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The original Audi Duo was created in 1989, and was based on the Audi C3 100 Avant. It was a petrol engine/electric hybrid concept vehicle.
Audi 100 Duo second generation was introduced in 1991. It featured Audis' "trademark" quattro permanent four-wheel drive system.
Little is known about the Audi Duo II. It was based on the Audi C4 100/A6 Avant, and made sometime in the early to mid 1990s.
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 an 21 kilowatts (29 PS; 28 bhp) electric motor. There was a switch inside the cabin for changing between the electric motor and the engine. The batteries would be recharged during highway/country driving, or by plugging the car into an AC power outlet. The hybrid was unable to achieve fuel efficiency much greater than the standard 1.9 TDI, due to the extra weight the batteries added.
Unfortunately there was little demand for this hybrid due to its high price, and thus only about sixty Audi Duo's were produced. Until the release of the Audi Q7 hybrid, the Duo was the only European hybrid ever put into production.
Audi unveiled the Audi Q7 hybrid 4.2 FSI quattro, which uses their Fuel Stratified Injection (FSI) 4.2 litre V8 engine, at the 2005 Frankfurt Motor Show. Audi plans to have the Q7 hybrid as a part of their 2008 model range.
In the third quarter of 2007, just before its official announcement at the Tokyo Motor Show, Audi leaked information about "metroproject quattro".[1] The metroproject quattro is a supermini/sub-compact, intended to compete with the MINI.
Under the bonnet/hood is a 1.4 litre TSI petrol engine, producing 110 kilowatts (150 PS; 148 bhp).[1] This will distribute its torque of 240 newton metres (177 ft·lbf) to the front roadwheels via an 'S tronic' Direct-Shift Gearbox.[1] However, in the back of the car, beneath a perspex peephole, is a 30 kilowatts (41 PS; 40 bhp) electric motor which drives the rear axle,[1] and can generate an additional 200 newton metres (148 ft·lbf) of torque,[1] designed to create a zero emissions driving[1] experience in residential or city areas, and increase torque while the 1.4 TSI engine is accelerating.
A lithium-ion battery[1] pack supports a range of up to 100 kilometres (62 mi).[1] In electric mode, the car has a top speed of more than 100 kilometres per hour (62 mph).[1] When both the engine and electric motors are working in unison, the car is transformed into a genuine quattro, with a combined torque output of 440 newton metres (325 ft·lbf) being shared between all four roadwheels.[1]
Stop-start technology will be utilised,[1] as will regenerative braking.[1] As a result, Audi claim a 15% improvement in fuel efficiency when compared to exclusive use of the internal combustion engine.[1]
A four-door concept is expected to debut at the Paris Motor Show in October 2008.[2]
Other Audi hybrid electric vehicles include:
Audi is planning an alliance with the Japanese electronic company Sanyo to develop a pilot hybrid project for the Volkswagen Group. The alliance could result in Sanyo batteries and other electronic components being used in future models of the Volkswagen Group.[3]
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