Automotive parts supplier Continental has redesigned its wheel and braking system to meet today’s demands in electro mobility. Unlike the traditional wheel and braking solutions, the New Wheel Concept specially made for medium and compact electric vehicles meet all the requirements electric driving puts on the brake.
Continental’s innovative concept is based primarily on two new sections between the wheel and the axle. The carrier, or the inner part of the aluminum brake disc, remains affixed to the wheel hub while the wheel brake is attached to the star carrier of the axle. The reduced weight also means changing brake pads and tires will come easier as these are the only parts requiring periodic replacements.
It is important for electric vehicles that the driver uses small amounts of energy on friction brake, according to Paul Linhoff, Continental’s chassis and safety business unit head. The vehicle’s momentum is converted into electricity during deceleration, thereby increasing the vehicle’s range. He added that while the driver uses the brake pedal, it doesn’t conclude that the wheel brakes are also in use.
Aside from providing an increased range, more efficient acceleration and improved braking performance, the new wheel and brake concept was also developed to eliminate corrosion brought by conventional brake rotors. There is also lesser maintenance since the aluminum disk is rust-proof, less prone to wearing, and is designed to practically last the vehicle’s lifespan.
Continental will be showcasing their New Wheel Concept along with its inductive wireless charging system at the 2017 Frankfurt Motor Show this September. Its wireless charging solution, which will work with both bikes and EVs, will enable drivers to park over a charging pad to recharge. Drivers will find it more convenient than using traditional charging cables as it lets them stay inside the car while charging up. The charging pad will either be placed on the ground or a bit lower to easily integrate the system into small parking spaces. With a charging rate of 11kW per minute, the ground pad will come with a receiver pad that will be fixed on the underside of the car.
Cast iron brake discs are prone to rust and could weaken the vehicle’s braking performance, therefore the use of aluminum brake disk on EVs is more effective. It also serves as a good heat conductor, allowing the heat generated from braking to dispel quickly. Since the brake disk is attached permanently from outside and engages from the inside, the brake caliper can be specially developed to be as light and stiff as possible, hence, affecting the noise behavior positively due to the force being transmitted into the axle.