Audi A8 Hybrid

The Audi A8 is a four-door, full-size, luxury sedan car manufactured and marketed by the German automaker Audi since 1994. Succeeding the Audi V8, the A8 has been offered with front wheel drive or permanent four-wheel drive, with multitronic or tiptronic automatic transmissions — and in short and long wheelbase variants. Previous generations employed the Volkswagen Group D platform with the current generation using the D4 platform.
Beginning in 1997, The A8 was the first mass-market car with an aluminum chassis, marketed as the Audi Space Frame and co-developed with Alcoa.

The power of a six-cylinder model, the fuel consumption of a four-cylinder version: Audi will be starting series production of the Audi A8 hybrid in 2012. Its gasoline engine - a 2.0 TFSI - and an electric motor develop peak output of 180 kW (245 hp) and 480 Nm (345.03 lb-ft) of torque. Average fuel consumption is below 6.4 liters per 100 km (36.75 US mpg). The sedan can travel at speeds of up to 100 km/h (62.14 mph) on electric power alone, and cover around three kilometers (1.86 miles) with zero local emissions at a constant speed of 60 km/h (37.28 mph).

The Audi flagship model is designed as a highly efficient parallel hybrid. The 2.0 TFSI, which has been modified in some areas, generates an output of 155 kW (211 hp) and 350 Nm (258.15 lb-ft) of torque, which is available between 1,500 and 4,200 rpm. The combustion engine works together with a disc-shaped electric motor which develops 40 kW (54 hp) and 210 Nm (154.89 lb-ft).

The permanent magnet synchronous motor is mounted in the space usually occupied by the torque converter in front of the modified eight-speed tiptronic. A multi-plate clutch that operates in an oil bath connects or disconnects the electric motor and the TFSI engine. The clutch operates ultra-precisely and gently in all situations. The highly comfortable and fast-shifting hybrid transmission guides the torque to the front wheels; with its wide gear spread it contributes to the efficiency of the Audi A8 hybrid.




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