Methods and systems are provided for monitoring a status of a heater core isolation valve (HCIV) housing in an engine coolant circuit including a first coolant loop and a second coolant loop. In one example, a method may include indicating degradation of the HCIV based on a difference between a first coolant loop temperature and a second coolant loop temperature upon activation of coolant system pumps and deactivation of a positive temperature coefficient (PTC) heater housed in the cabin heating loop.

    本公开提供了“用于检测加热器芯体隔离阀状态的方法”。提供了用于监测容置在发动机冷却剂回路中的加热器芯体隔离阀(HCIV)的状态的方法和系统,所述发动机冷却剂回路包括第一冷却剂回路和第二冷却剂回路。在一个示例中,一种方法可以包括基于在激活冷却剂系统泵和停用容置在所述车舱加热回路中的正温度系数(PTC)加热器时第一冷却剂回路温度和第二冷却剂回路温度之间的差值来指示所述HCIV的劣化。


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    Title :

    METHOD FOR DETECTING HEATER CORE ISOLATION VALVE STATUS


    Additional title:

    用于检测加热器芯体隔离阀状态的方法


    Contributors:

    Publication date :

    2021-02-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / 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 / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF



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