EBS central module 446 135 ... 0 The central module is used to control and monitor the electronically controlled braking system. It determines the vehicle’s nominal delay from the signals received by the brake signal transmitter. The nominal delay and the wheel velocity measured by the speed sensors are input signal for the electro-pneumatic control unit, which uses it to calculate nominal pressure values for the front axle and rear axle(s). The front axle’s nominal pressure value is then compared with the measured actual value, and any existing deviations corrected with the help of the proportional relay valve.
Moreover, the wheel velocity is evaluated so that in case of locking, an ABS control can be carried out by modulating the braking pressure in the brake cylinders. The central module exchanges EBS system bus related data with the axle modulators. The central module communicates with other systems (engine control unit, retarder, display unit, etc.) via the vehicle data bus in accordance with SAE J 1939. KOM-integrated central unit: Description of components 3. EBS 10