The new 2020 BMW flagship M8 is arriving with a brake-by-wire system. The M8 and M8 Competition are expected to be revealed with more power, possibly over 600 horsepower, powered by the twin-turbo V8. BMW is promising the new system will deliver “sublime pedal feel in any situation.” The M8 will arrive in coupe form sometime this year.
BMW released the information that they developed a new display and control system for configuration of the powertrain, chassis and driver assistance systems. One option, the “Setup” button gives the driver the power to customize the mode for the engine, suspension, steering, all-wheel drive system and the brakes. The same brake-by-wire system is used in the regular 8 Series. The BMW press releases stated, “The new system brings together the brake activation, brake booster and braking control functions within a compact module. The integrated braking system reduces weight by around two kilograms and employs a vacuum-free brake booster to enhance the car’s overall efficiency. The brake pressure required is triggered by an electric actuator.”
An electrically powered brake-by-wire system means the vehicle does not have vacuum assistance while braking. BMW claims the system is quicker, more efficient, and more precise. Several cars have transition to the brake-by-wire technology, including the Alfa Giulia and Stelvio, several Volvo models, and the Acura NSX. Typically, this technology would be utilized on hybrid and full EV models versus a performance vehicle. Though since 2014, Formula 1 has been using this tech and the introduction of the ERS system to brake in the rear wheels, while still keeping the hydraulically operated in front. BMW explains the two brakes systems in a statement, “Comfort and Sport modes alter the amount of pressure on the brake pedal required to slow the car. This allows the driver to choose between comfort-oriented perception of the braking process and a particularly direct, instantaneous response to applications of the pedal. The new BMW M8 teams this innovative system with both the standard M compound brakes and the optional M carbon ceramic brakes.”
BMW claims driver feedback reports unimpaired by “wet road surfaces, significant lateral acceleration or high brake temperatures.” The automaker will use this system on both the conventional and the M carbon ceramic brakes.
Image Credit: BMW