The embodiment of the invention discloses an engine temperature rise diagnosis method, an engine temperature rise diagnosis device, a vehicle and a storage medium. The method comprises the following steps: acquiring the actual temperature rise time required for an engine to rise from an initial temperature to a preset temperature; determining a first standard temperature rise time and a correctioncoefficient corresponding to the actual temperature rise time; correcting the first standard temperature rise time according to the correction coefficient to obtain a second standard temperature risetime; and determining a diagnosis result according to the actual temperature rise time and the second standard temperature rise time. According to the technical scheme, the problem of false alarm ofa temperature rise fault caused by the fact that the actual temperature rise time is too long when the engine heat is used for air conditioner heating or preheating and heat preservation of a power battery system is solved, the false alarm rate of the engine temperature rise fault is reduced, and the utilization rate of the engine heat is improved.
本发明实施例公开了一种发动机升温诊断方法、装置、车辆及存储介质。该方法包括:获取发动机由初始温度上升至预设温度所需的实际升温时间;确定实际升温时间对应的第一标准升温时间及修正系数;根据修正系数对第一标准升温时间进行修正,获得第二标准升温时间;根据实际升温时间和第二标准升温时间确定诊断结果。本发明实施例的技术方案,解决了在发动机热量被用于空调加热或动力电池系统的预热保温时,由于实际升温时间过长而导致升温故障误报的问题,降低了发动机升温故障的误报率,提高了发动机热量的利用率。
Engine temperature rise diagnosis method, engine temperature rise diagnosis device, vehicle and storage medium
发动机升温诊断方法、装置、车辆及存储介质
2020-10-16
Patent
Electronic Resource
Chinese
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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