Here’s how Audi increased the electric E-Tron’s driving range
Audi isn’t resting on its laurels. Less than a year after it released theE-Tron, its first series-produced electric car, Audi made a series of hardware and software changes to the model’s powertrain that unlock additional driving range. “Residual brake torque” is one of the enemies of driving range, the German companyexplained. The term refers to the drag created when brake pads are positioned very, very close to discs. Rather than pushing the pads out, which would increase the E-Tron’s stopping distance, engineers redesigned the braking system to reduce residual brake torque....