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Audi highlights e-tron prototype's charge recuperation techby Justin King
Recuperation contributes up to 30 percent of the SUV\'s range and features the first electrohydraulically integrated brake system.
Audi has highlighted the e-tron prototype's innovative energy recuperation and braking technology.
With an estimated range of more than 249 miles (WLTP test cycle), an ultra-efficient recuperation system is said to contribute up to 30 percent of the overall range.
The prototype boasts the world's first electrohydraulically integrated brake control system. It can recuperate energy with up to 221 pound-feet of torque and 295 horsepower, representing more than 70 percent of its operating energy input.
"No series production model has achieved such a value up to now," Audi says.
The crossover combines three different recuperation modes: manual coasting using the shift paddles, automatic coasting via predictive efficiency assist, and brake recuperation that aims to smoothly transition from electric to hydraulic deceleration. Electric deceleration is supported up to 0.3g, covering 90 percent of all decelerations for most drivers.
As an added bonus, the electrohydraulic brake system shortens the response time of automatic emergency braking to just 150 milliseconds before maximum brake pressure is applied. Audi says the rapid pressure application shortens braking distance by up to 20 percent compared to a conventional system.
Additional details surrounding the all-electric crossover will presumably continue to surface ahead of its market debut.