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10 01 2018 01

The Audi e-tron prototype combines power, efficiency and range. With a system output of up to 300 kW, the full-size SUV with a fully electric drive accelerates from zero to 100 km/h (62.1 mph) in less than six seconds. In the WLTP test cycle, it covers more than 400 kilometers (248.5 mi) on one battery charge. One important contributing factor to its range is the recuperation system, which contributes up to 30% of the EV’s range.

The recuperation system involves both the two electric motors and the electrohydraulically integrated brake control system. For the first time, three different recuperation modes are combined: manual coasting recuperation using the shift paddles; automatic coasting recuperation via the predictive efficiency assist; and brake recuperation with smooth transition between electric and hydraulic deceleration.

At up to 0.3 g, the Audi e-tron prototype recuperates energy solely via the electric motors, without using the conventional brake—that condition covers more than 90% of all decelerations. As a result, energy is fed back to the battery in practically all normal braking maneuvers.

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