Dynamic Brake Control (DBC)

The DBC function is designed to provide the maximum braking force available during rapid (panic) braking situations and includes the following subfunctions.

Dynamic Brake Support (DBS):  DBS assists the driver in panic braking situations. This function is triggered by a sufficiently fast actuation of the brake pedal.

The brake pressure generated by the driver is increased by the hydraulic pump to the extent that the front and rear axles go into ABS control mode. The driver can achieve a full deceleration with low pedal force.

Fading Brake Support (FBS):  FBS is a new subfunction of DBC that compensates for the brake force loss from an increase in brake temperature. The diminishing braking effect due to hot brakes requires the driver to press the brake pedal more firmly.

This increase in pressure is assumed by an activation of the DSC hydraulic pump. The temperature measurement is a virtual value which is calculated by the DSC control module based on wheel speed, brake pressure, braking time (length) and ambient temperature.