Brake Temperature Model (Btm)

Brake Temperature Model (BTM)
The BTM function determines by way of a calculation model integrated on a software basis in the DSC control unit the temperatures of all four brake discs as a function of the input variables:
^ Wheel speed
^ Individual wheel brake pressure
^ Ambient temperature
If the critical brake disc temperature is exceeded (t > 600°C) at a wheel, DSC functions are limited as a function of the prevailing driving conditions:
^ Locking interventions are reduced to zero for each individual wheel.
^ Symmetrical braking torques on the corresponding axle are prohibited.
^ The engine torque is limited temporarily via an algorithm for driving performance reduction.
The restrictions are lifted again when the temperature drops below a further threshold (t < 500°C).