The invention discloses a thermal management system diagnosis method. The method comprises the steps that the highest temperature value of a to-be-cooled component and the temperature value of a first cooling liquid transmission port of the to-be-cooled component are determined, wherein the highest temperature value of the to-be-cooled component is not smaller than a cooling starting temperature threshold value, the collection time of the temperature value of the first cooling liquid transmission port is later than the collection time of the highest temperature value of the to-be-cooled component, and the time difference between the collection time is not smaller than a first preset time threshold value, and the first preset time threshold value is determined according to the starting duration of the cooling function of the thermal management system; and the fault type of the thermal management system is diagnosed according to the difference relation between the highest temperature value of the to-be-cooled component and the temperature value of the first cooling liquid transmission port. According to the invention, the fault type of the thermal management system is diagnosed according to the difference relation between the highest temperature value of the to-be-cooled component and the temperature value of the first cooling liquid transmission port, so that a technical scheme for diagnosing the fault of the thermal management system is provided.

    本发明公开了一种热管理系统诊断方法,其包括:确定待冷却部件最高温度值以及待冷却部件的第一冷却液传输口温度值;其中,待冷却部件最高温度值不小于冷却开启温度阈值,第一冷却液传输口温度值的采集时间晚于待冷却部件最高温度值的采集时间且二者之间的时间差不小于第一预设时间阈值,第一预设时间阈值是根据热管理系统冷却功能的开启时长确定的;根据待冷却部件最高温度值和第一冷却液传输口温度值的差值关系,诊断热管理系统的故障类型。本发明通过根据待冷却部件最高温度值和第一冷却液传输口温度值的差值关系诊断热管理系统的故障类型,从而提供了一种诊断热管理系统故障的技术方案。


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    Title :

    Thermal management system diagnosis method and device, thermal management control system and vehicle


    Additional title:

    一种热管理系统诊断方法和装置、热管理控制系统与车辆


    Contributors:
    YANG KAI (author) / LIU ZHIMIN (author) / LIU DONGQIN (author)

    Publication date :

    2021-06-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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