Continental claims, that they reinvented the wheel for medium and compact electric vehicles, which is better adapted to the demands of electric drive.
So called 'dual New Wheel Concept' incorporates two parts. Outer section or rim well is attached to the wheel carrier of the axle and the inner section or carrier star, which incorporates aluminium brake disc, is attached to the wheel hub. In contrary to conventional brakes, brake pad attaches a disc from the inside thus allowing wider friction radius and better braking efficiency.
Becaus of use of aluminium in the wheel design it is also much lighter, so the car uses less energy to accelerate and maintain speed, which also contributes to the driving range. Because most of braking is regenerative in electric vehicles, brake disc is less prone to wear, so it can last throghout whole life span of the car, just brake pads need to be changed regularly.
"In EVs, it's crucial that the driver expends as little energy as possible on the friction brake," said Paul Linhoff, Continental's head of brake pre-development in the chassis & safety business unit. "During a deceleration, the momentum of the vehicle is converted into electricity in the generator to increase the vehicle's range. That's why the driver continues to operate the brake pedal – but it certainly doesn't mean that the wheel brakes are active too."