A fault in a fan motor is detected on the vehicle side with simple wiring. Provided is a vehicle-cooling-fan control system including a fan control unit having a motor control unit that controls a three-phase motor for driving a cooling fan, a vehicle-side ECU that is provided superordinate to the fan control unit and that controls a vehicle, and an air-conditioning-system ECU that controls an air-conditioning apparatus of the vehicle, wherein the fan control unit, the vehicle-side ECU, and the air-conditioning-system ECU are connected so that information can be transferred therebetween via a vehicle network CAN, the fan control unit outputs fault information via a CAN driver in the case where a fault has been detected at a switching device, and the vehicle-side ECU exercises control via the vehicle network CAN to protect the fan control unit and the air-conditioning-system ECU in the case where the importance of the fault information is high.
Vehicle-cooling-fan control system and control method therefor
2016-08-23
Patent
Electronic Resource
English
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS |
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