Electronic brake force distributor

Modern automobiles have relatively large brakes on the rear axle so they can brake over a short distance even if they are carrying a large load.

In order to prevent overbraking when the load is lighter, the electronic brake force distributor constantly monitors the wheel speed of the rear axle and compares this with that of the front axle. If the rear axle threatens to lock, the distributor limits its drive slip: this partial braking re-establishes the car’s directional stability.