DEVICE FOR MINIMIZING THE CURRENT CONSUMPTION OF A MOTOR VEHICLE GENERATOR FROM THE BATTERY DURING THE STARTING PHASE OF A MOTOR VEHICLE

摘要

The invention relates to a device for minimizing the current consumption of a motor vehicle generator from the battery during the starting phase of a motor vehicle, said device comprising a generator unit and a generator controller. The generator controller comprises a governor controller which has means for providing a first actuating signal with a fixed prescribed pulse-duty factor, means for providing a second actuating signal with a pulse-duty factor that is dependent from the excitation current, and means for selecting the actuating signal which has the smaller of both pulse-duty factors and which is supplied as actuating signal to the output stage of the generator controller. It is thus achieved that the engine start is detected while a lowest possible current consumption from the battery is ensured and that the generator controller for supplying the on-board network is started.