Verfahren und Vorrichtung zum Abschalten eines Fahrzeugheizgeräts

摘要

The device for switching off a car heater (11) where a liquid heat carrier is heated by a heater and is delivered by a motor-driven circulating pump (10) through a heat exchanger (20). The device has at least one control unit (18,25) which at least partly controls the operation of the heater as well as the operation of the pump. A signal about an operational disturbance of components controlled by it can be delivered to the control unit through at least one signal wire (29). A value showing at least indirectly the power consumption of an electric motor (24) for the pump can be passed to the control unit as a signal for the disturbance in delivery for the pump.