The invention discloses an electric driving system and a control method and device thereof. The control method comprises the steps that the target output torque of a power motor is acquired, and the actual output torque of the power motor is determined; when the deviation value between the actual output torque and the target output torque is larger than a first preset threshold value, a first control instruction is sent to the inverter, and the first control instruction is used for instructing the inverter to cut off a high-side switch or a low-side switch of the inverter. According to the electric driving system and the control method and the control device thereof provided by the embodiment of the invention, when the deviation value between the actual output torque and the target output torque of the power motor is greater than the first preset threshold value, the inverter is controlled to cut off the high-side switch or the low-side switch so as to close the torque output of the power motor; and the power motor is controlled to enter the safety state, so that the driving safety is improved when the electric driving system breaks down against the safety target.

    本发明公开了一种电驱动系统及其控制方法、控制装置。其中,控制方法包括获取动力电机的目标输出扭矩,并确定动力电机的实际输出扭矩;当实际输出扭矩和目标输出扭矩之间的偏差值大于第一预设阈值时,向逆变器发送第一控制指令,第一控制指令用于指示逆变器切断其高边开关或低边开关。本发明实施例提供的电驱动系统及其控制方法、控制装置,通过在动力电机的实际输出扭矩和目标输出扭矩之间的偏差值大于第一预设阈值时,控制逆变器切断其高边开关或低边开关,以关闭动力电机的扭矩输出,控制动力电机进入安全状态,从而在电驱动系统发生违背安全目标的故障时,提高了行车安全性。


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    Titel :

    Electric driving system and control method and control device thereof


    Weitere Titelangaben:

    一种电驱动系统及其控制方法、控制装置


    Beteiligte:
    DUAN LIHUA (Autor:in) / FAN YUHUI (Autor:in) / HOU KEHAN (Autor:in) / ZHENG QIANG (Autor:in)

    Erscheinungsdatum :

    2022-07-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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