The invention belongs to the technical field of electric wheel drive vehicle torque distribution of new energy vehicles, and particularly relates to an L-CPSO algorithm-based electric wheel drive vehicle torque distribution control method, which comprises the following steps of: firstly, obtaining expected torque according to the opening degree of an accelerator pedal; according to the longitudinal vehicle speed and the wheel turning angle, the expected yaw velocity is calculated through linear two-degree-of-freedom, and the additional yaw moment is calculated through sliding mode control; judging a vehicle motion mode through fuzzy control according to the expected torque and the additional yawing moment; secondly, respectively calculating a longitudinal dynamic property weight coefficient, a yaw dynamic property weight coefficient, a hub motor torque sudden change weight coefficient, a hub motor efficiency optimization weight coefficient and four tire attachment utilization rate weight coefficients; the endurance mileage of the electric wheel drive vehicle and the working efficiency of the hub motor are improved, meanwhile, the stability of the vehicle is enhanced, the designed algorithm improves the algorithm iteration speed, the local optimal solution is avoided, the service life of the hub motor is prolonged, and the response time of the hub motor is prolonged.

    本发明属于新能源汽车的电动轮驱动车辆转矩分配技术领域,具体为一种基于L‑CPSO算法的电动轮驱动车辆转矩分配控制方法,其包括以下方法步骤:首先根据油门踏板开度获得期望转矩,根据纵向车速和车轮转角利用线性二自由度计算出期望横摆角速度,通过滑模控制计算出附加横摆力矩;根据期望转矩与附加横摆力矩通过模糊控制判断车辆运动模式;其次分别计算出纵向动力性权重系数、横摆动力性权重系数、轮毂电机转矩突变权重系数、轮毂电机效率优化权重系数和四个轮胎附着利用率权重系数;提高电动轮驱动车辆的续航里程和轮毂电机工作效率的同时增强了车辆的稳定性,所设计的算法提高算法迭代速度和避免了局部最优解,提高了轮毂电机寿命和响应时间。


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    Title :

    Electric wheel drive vehicle torque distribution control method based on L-CPSO algorithm


    Additional title:

    一种基于L-CPSO算法的电动轮驱动车辆转矩分配控制方法


    Contributors:
    JIN LIQIANG (author) / LI YINGZHUANG (author) / ZHANG JIYUAN (author) / LIU SHAOJIE (author) / WU YUANSHUO (author) / LIU JUNYI (author) / TABATA HIROSHI (author)

    Publication date :

    2023-12-19


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



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