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  Audi e-tron
 

  Article Image gallery (28) Specifications  
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Country of origin:Germany
Introduced in:2018
Engine type:Electric
Source:Company press release
Last updated:September 19, 2018
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Click here to download printer friendly versionFossil fuel really is ancient history for this car - today marks the start of a new era for Audi as the e-tron, its first ever fully electric model, makes its world debut in San Francisco. The full-size SUV derives high performance and impressive agility from powerful front and rear electric motors energised by a large high-voltage battery - in combination these facilitate sub-six-second acceleration potential and a driving range of at least 248 miles in the WLTP driving cycle, and ensure delivery with trademark Audi composure by operating as an electric all-wheel drive system. Complemented by a comprehensive range of charging options for home and on the move, and by the latest in-car communication, entertainment and assistance technologies, the Audi e-tron is perfectly placed to make the transition to fully electric driving as seamless as possible for devotees of the four rings.

Standing 4,901 millimetres long, 1,935 millimetres wide and 1,616 millimetres high, the new Audi e-tron offers the space and comfort of one of the brand's typical full-size models. With a wheelbase of 2,928 millimetres, it has ample space for five occupants, and its total luggage capacity of 660 litres ensures that it can also comfortably accommodate their luggage.

Powerful performance on any terrain: drive and dynamic handling system. Efficiency, performance and tranquility - the Audi e-tron exemplifies the driving experience of a new era. Two electric motors drive the electric SUV powerfully, free of emissions, and almost silently, with a system output of up to 300 kW and 664 Nm (489.7 lb-ft) of torque. Peak torque is available within fractions of a second, enabling the e-tron to complete the standard sprint in 5.7 seconds. Top speed is an electronically-limited 124mph.

A new quattro generation - the electric all-wheel drive - provides for superlative traction and handling on any terrain and in any weather conditions. It continuously and fully variably regulates the ideal distribution of drive between the two axles - within a fraction of a second. In most cases, the electric SUV mainly uses its rear electric motor in order to achieve the highest efficiency. If the driver demands more power than it can supply, the electric all-wheel drive redistributes torque as required to the front axle. This also happens predictively even before slip occurs in icy conditions or when cornering fast, or if the car understeers or oversteers.

A key factor in the impressive dynamic capability of the e-tron is the low and central position in which the drive components are installed. The battery system is optimally matched to the dimensions and is located between the axles in the form of a flat, broad block beneath the passenger compartment. This configuration makes the Audi e-tron's centre of gravity similar to that of a saloon car. Axle load distribution is perfectly balanced at almost 50:50.

With Audi drive select, the driver can vary the characteristics of the Audi e-tron between seven profiles depending on the driving situation, road conditions or personal preferences. The system also influences the standard air suspension with adaptive dampers. The pneumatic springs adjust individually to the road conditions depending on the speed and the driver's preferences, varying the ride height by as much as 76 millimetres. At higher, motorway-appropriate speeds on longer journeys the e-tron is therefore able to adopt a lower stance in the interest of aerodynamics, and consequently of range.

High efficiency: recuperation, aerodynamics and thermal management
The Audi e-tron can cover more than 248 miles on a single charge in the WLTP test cycle. This value is due primarily to the innovative recuperation system, which is responsible for up to 30 per cent of the range. The electric SUV can recover energy in two ways: by means of coasting recuperation when the driver releases the accelerator, or by means of braking recuperation when the brake pedal is depressed.

In both cases, the electric motors function as a generator and convert the kinetic energy of the Audi e-tron into electric energy. At up to 0.3 g of deceleration, the electric SUV recuperates solely via the electric motors. This is the case well over 90 percent of the time. The wheel brakes are involved only when the driver decelerates by more than 0.3 g using the brake pedal. They respond extremely quickly, thanks to a new electrohydraulic actuation concept. Audi is the first manufacturer worldwide to use this concept in a series production vehicle with electric drive. When braking from 62mph, for example, the Audi e-tron can recuperate electric power with a maximum of 300 Nm (221.3 lb-ft) and 220 kW. That corresponds to more than 70 percent of its operating energy input. No other series production model can achieve such a value.

Depending on the driving situation, the electrohydraulically integrated brake control system decides whether the SUV will use the electric motor, the wheel brake or a combination of the two acting on each axle individually for recuperation. The transition between electric and hydraulic braking is smooth and homogeneous, so the driver does not even notice it. Brake forces remain constant.

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  Article Image gallery (28) Specifications