The invention discloses a control method for faults of contactors in a battery pack of a pure electric vehicle, which specifically comprises a negative electrode contactor adhesion control strategy, a pre-charging contactor adhesion control strategy and a control strategy for detecting simultaneous adhesion of a positive electrode contactor and the negative electrode contactor after high voltage is lowered. The electric vehicle is prevented from immediately going down high voltage or stopping going up high voltage to wait for maintenance after the adhesion fault of the high-voltage contactor, and vehicle travel and emergency requirements are affected.

    本发明公开了一种纯电动汽车电池包内接触器故障时的控制方法,具体包括负极接触器粘连控制策略、预充接触器粘连控制策略和下高压后检测到正极接触器和负极接触器同时黏连控制策略,避免电动汽车当出现高压接触器粘连故障后立即下高压或者停止上高压等待维修处理,影响了车辆出行和应急需求。


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    Title :

    Control method for contactor fault in battery pack of pure electric vehicle


    Additional title:

    一种纯电动汽车电池包内接触器故障时的控制方法


    Contributors:
    ZHANG LONGCONG (author) / LIU BIAO (author) / LIU WEIFENG (author) / LIU FANGYONG (author) / MI WEIWEI (author)

    Publication date :

    2023-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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