Temperature monitoring

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The temperature monitoring ensures that the reduction in power arising from cooling hot brake discs is compensated. Temperature monitoring is activated if the temperature exceeds a defined value when changing the state of the parking brake from released to engaged.

The temperature of the brake discs is calculated individually for each wheel by the DSC control unit and is transmitted to the parking brake control unit. During a state change, the higher of the two temperatures is used for temperature monitoring. The corresponding temperature ranges with the associated re-tensioning times are stored in a characteristic map.

Depending on the temperature during the state change, the corresponding re-tensioning times are activated from the characteristic map. If the first re-tensioning time is reached, re-tensioning is carried out for the first time. Following the second re-tensioning time, re-tensioning is carried out again; following the third re-tensioning time re-tensioning is carried out once more. In the characteristic map, the value 0 can also be entered for one or more re-tensioning time points. The corresponding re-tensioning processes will then not be carried out. The function ends when the last re-tensioning process is complete.