The invention discloses a control method and device of a four-wheel-drive vehicle. The method comprises the steps that the current driving mode of the four-wheel-drive vehicle is determined, and the four-wheel-drive vehicle comprises a first motor, a first motor controller, a second motor, a second motor controller and a disconnecting device used for controlling driving of the first motor; under the condition that the current driving mode is the conventional mode, the wheel end required total torque and the current driving speed of the four-wheel-drive vehicle are obtained; determining a target switch state of the disconnection device based on the wheel end demand total torque and the current driving speed; determining a driving control strategy of the four-wheel-drive vehicle and a torque distribution strategy corresponding to the driving control strategy according to the target on-off state; and controlling the four-wheel drive vehicle based on the drive control strategy and the torque distribution strategy. The technical problems of high energy consumption and poor economical efficiency caused by the fact that a four-wheel drive vehicle cannot automatically switch the driving modes according to the actual driving state and driving requirements of the vehicle in the prior art are solved.

    本发明公开了一种四驱车辆的控制方法以及装置。其中,该方法包括:确定四驱车辆的当前驾驶模式,其中,四驱车辆包括第一电机,第一电机控制器,第二电机,第二电机控制器,以及用于控制第一电机驱动的断开装置;在当前驾驶模式为常规模式的情况下,获取四驱车辆的轮端需求总扭矩和当前行驶速度;基于轮端需求总扭矩和当前行驶速度确定断开装置的目标开关状态;根据目标开关状态确定四驱车辆的驱动控制策略,以及与驱动控制策略对应的扭矩分配策略;基于驱动控制策略和扭矩分配策略,对四驱车辆进行控制。本发明解决了由于相关技术中的四驱车辆无法根据车辆实际驾驶状态和驾驶需求自动进行驱动方式切换,造成的能耗大,经济性差的技术问题。


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    Title :

    Control method and device of four-wheel-drive vehicle


    Additional title:

    四驱车辆的控制方法以及装置


    Contributors:
    LIU LIYUAN (author) / WANG YAN (author) / YU CHANGHONG (author) / LIU JIANKANG (author)

    Publication date :

    2022-11-01


    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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