The invention discloses a four-wheel drive torque pre-control method and device. The method comprises the steps of determining the stability state of a vehicle according to the yaw velocity and the expected yaw velocity; determining a current driving intention of a driver of the vehicle according to the steering wheel angle and the steering wheel angle speed; generating a torque release signal according to the stability state and the current driving intention; and adjusting the attitude of the vehicle based on the torque release signal, the yaw velocity and the lateral acceleration. By utilizing the characteristic that the motor torque response is quick, the front and rear shaft torques are pre-adjusted through an ECM stability pre-control strategy, and the influence caused by intervention delay of Bosch AYC or AYC function failure is relieved.

    本发明公开了一种四驱扭矩预控方法及装置,包括:根据横摆角速度和期望横摆角速度确定车辆的稳定性状态;根据方向盘转角和方向盘转角速度确定所述车辆的驾驶员的当前驾驶意图;根据所述稳定性状态和所述当前驾驶意图生成扭矩释放信号;基于所述扭矩释放信号、所述横摆角速度和侧向加速度调整车辆的姿态。本发明利用电机扭矩响应快速的特点,通过ECM稳定性预控策略对前后轴扭矩进行预先调节,缓解了博世AYC的介入延迟或AYC功能失效带来的影响。


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    Title :

    Four-wheel drive torque pre-control method and device


    Additional title:

    一种四驱扭矩预控方法及装置


    Contributors:
    YAN ZHONGYI (author) / DING SHAOBING (author) / LIU GUORUI (author) / ZHANG DANG (author) / ZHANG GUOXIANG (author)

    Publication date :

    2021-04-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion




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