Take-off drive for automobile engine auxiliary unit e.g. water pump, has electrically-operated clutch controlled via characteristic field control dependent on engine and/or environmental parameters

摘要

The take-off drive has an electrically-operated clutch (12) between the auxiliary drive output (2) provided by the engine (1) and the driven auxiliary unit (6), which is controlled via a characteristic field control (16), using monitored engine operating parameters and/or environmental parameters.