The invention provides a method and device for calculating the torque distribution ratio of front and rear axles of an automobile. The method comprises the steps that load information and state information of a target vehicle and road information of a driving road section of the target vehicle are obtained, the load information is load distribution of the target vehicle at different positions, the state information comprises the vehicle speed, the vehicle acceleration and the steering wheel rotation angle, and the road information comprises the gradient and the road adhesion coefficient; calculating a first gravity and a second gravity respectively distributed on a front axle and a rear axle of the target vehicle based on the road information and the load information; based on the road information, the state information, the first gravity and the second gravity, tractive forces distributed on a front axle and a rear axle of the target vehicle respectively are calculated; and taking the ratio of the tractive forces distributed on the front axle and the rear axle of the target vehicle as the torque distribution ratio of the front axle and the rear axle of the target vehicle. By means of the technical means, the problems that in the prior art, a method for determining the distribution ratio of the front and rear axles of the automobile cannot generally adapt to all scenes and is low in accuracy are solved.

    本公开提供了一种汽车前后轴扭矩分配比计算方法以及装置。该方法包括:获取目标车辆的负载信息和状态信息以及目标车辆行驶路段的道路信息,负载信息为目标车辆不同位置上的负载分布,状态信息包括车速、车加速度和方向盘旋转角度,道路信息包括坡度和路面附着系数;基于道路信息和负载信息,计算分别分布在目标车辆的前轴和后轴上的第一重力和第二重力;基于道路信息、状态信息、第一重力和第二重力,计算分别分布在目标车辆的前轴和后轴上的牵引力;将分布在目标车辆的前轴和后轴上的牵引力的比值作为目标车辆的前轴和后轴的扭矩分配比。采用上述技术手段,解决现有技术中确定汽车前后轴分配比的方法不能普遍适应所有场景以及准确率低的问题。


    Access

    Download


    Export, share and cite



    Title :

    Method and device for calculating torque distribution ratio of front axle and rear axle of automobile


    Additional title:

    汽车前后轴扭矩分配比计算方法以及装置


    Contributors:
    HE HUIYI (author) / ZHENG DENGLEI (author) / TAN KAIBO (author) / LUO HUAN (author)

    Publication date :

    2024-01-26


    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



    Protective rear axle housing for automobile rear drive axle

    GAO ZHEN | European Patent Office | 2021

    Free access

    Front and rear axle torque distribution method and device of vehicle

    HU ZHIMIN / LIU BAO / HOU WENTAO et al. | European Patent Office | 2021

    Free access

    High-stability structure of front axle and rear axle of automobile

    LIU HAIYING / WANG WENBING | European Patent Office | 2022

    Free access

    Automobile rear axle assembly

    ZHOU YU | European Patent Office | 2022

    Free access

    Novel automobile rear axle

    SUN SONGHU | European Patent Office | 2020

    Free access