UNCOUPLABLE HYDRODYNAMIC RETARDER AND RELATED CONTROL METHOD

摘要

The invention relates to a method for controlling a hydrodynamic retarder arranged in a drive train of a motor vehicle, characterised in that the disconnecting coupling is opened with a varying time delay when the hydrodynamic retarder switches from the braking operation to the non-braking operation by means of the brake actuator or the control device depending on at least one of the following factors: - the switching status of a motor brake assigned to the drive motor by means of which motor brake power can be exerted on the motor vehicle drive train; - the position of the foot pedal, the lever or other actuator for regulating the power output of the drive motor; - the gear position of a transmission arranged in the motor vehicle drive train; - the gradient of the speed or the torque of the drive motor, a drive shaft of the transmission or drive wheels of the motor vehicle; - the current speed or acceleration of the motor vehicle.