The invention relates to the technical field of electric control automobile control, in particular to a new energy automobile fault processing method which comprises the following steps that a key switch is turned on to an ON gear, and a VCU conducts power-on initialization; the VCU awakens each control unit; each control unit carries out fault monitoring and reports a fault state to the VCU; the VCU monitors whether any fault is reported or not in real time, judges whether the FID associated with any fault is triggered or not and judges whether different levels of speed-limiting or power-limiting FIDs are triggered or not, when the FID is triggered, whether the locking function of the FID is opened or not and whether the VCU detects whether the fault is cured or not are detected, and if the fault is cured, if the fault is opened, the VCU sends the fault to the VCU; the FID trigger state is kept locked in the driving cycle; the VCU monitors the state of the key in real time, the FID triggered by the cured fault association cancels triggering, and the function mapped by the FID returns to normal, so that the problem that the diagnosis strategy is unreasonable in design to possibly cause false alarm and missing alarm of the fault, or the fault cannot be timely processed after the fault is reported to cause personal and vehicle dangers is solved.

    本发明涉及电控汽车控制技术领域,具体涉及一种新能源汽车故障处理方法,包括以下步骤:钥匙开关上ON档,VCU进行上电初始化;VCU唤醒各控制单元;各控制单元进行故障监测并上报故障状态给VCU;VCU实时监测是否有任一故障报出,判断是否有任一故障关联的FID被触发,以及判断是否有不同等级的限速或限功率FID被触发,当有FID被触发后,检测该FID的锁定功能是否打开,VCU、检测故障是否已治愈,若故障已治愈,对于FID锁定功能打开的故障,本驾驶循环保持FID触发状态锁定;VCU实时监测钥匙状态,已治愈故障关联触发的FID取消触发,FID映射的功能恢复正常,解决了诊断策略设计不合理,则可能导致故障误报、漏报,或故障报出后处理不得当导致发生人身车辆危险的问题。


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    Title :

    New energy automobile fault processing method


    Additional title:

    一种新能源汽车故障处理方法


    Contributors:
    ZHANG YA'NAN (author) / GUAN CHANGMING (author) / HE FENG (author) / WU QIUDE (author) / ZHANG WENFENG (author) / HAN QING (author)

    Publication date :

    2024-01-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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