The cooling circuit comprises an oil/coolant heat exchanger (3) located inside the retarder (1) and an oil/oil heat exchanger (4) in the transmission unit (2). When the retarder (1) is not activated the oil cooled down inside the oil/coolant heat exchanger...

The brake pedal (1) incorporates a module sending a signal (BA) to a modification circuit (2) which sends a signal (BK-Soll) to a comparator circuit (3). Signals for the actual vehicle speed (5) pass to a monitoring circuit (6) which sends a signal (BK-DBA...