The invention relates to the technical field of automobile charging and discharging control, in particular to an automobile torque control method and system, and the method comprises the steps: determining the current allowable working power of a battery according to the obtained current state information of the battery; according to the current allowable working power of the battery, determininga first threshold value and a second threshold value of the current allowable working power of the motor; determining the current allowable use power of the motor according to the current use power ofthe motor, the first threshold value and the second threshold value; determining the current allowable use torque of the motor according to the current allowable use power of the motor; and controlling the automobile according to the current allowable torque of the motor. The available charging and discharging power limit values allowed by two stages are set, and the first threshold value is gradually released to the second threshold value when the calculated current use power of the motor reaches the first threshold value, so that overdischarging and overcharging of the battery are avoided while the potential of the maximum charging and discharging power allowed by the battery is mined.

    本发明涉及汽车充、放电控制技术领域,具体涉及一种汽车扭矩控制方法及系统,根据所获取的电池当前状态信息,确定电池当前允许工作功率;根据电池当前允许工作功率,确定电机当前允许使用功率的第一门限值和第二门限值;根据电机当前使用功率、第一门限值和第二门限值,确定电机当前允许使用功率;根据电机当前允许使用功率,确定电机当前允许使用扭矩;根据电机当前允许使用扭矩控制汽车。本发明通过设置两级允许的可用充、放电功率限值,在计算的电机当前使用功率达到第一门限值时,逐步放开第一门限值到第二门限值,在挖掘了电池允许的最大充、放电功率的潜力的同时,避免了电池过放电和过充电。


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    Title :

    Automobile torque control method and system


    Additional title:

    一种汽车扭矩控制方法及系统


    Contributors:
    YE XIANJUN (author)

    Publication date :

    2020-11-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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