The invention relates to the technical field of new energy vehicles, in particular to a vehicle acceleration method, a vehicle acceleration device and a vehicle. The vehicle acceleration method comprises the steps that the torque states of a first motor and a second motor are obtained; judging in a first stage, performing first constraint on the target torque of the main motor to obtain a first target torque, and performing first compensation on the target torque of the slave motor to obtain a second target torque; the main motor is in a zero-crossing state, and the slave motor is not in the zero-crossing state; and in response to completion of torque zero crossing of the main motor, determining to enter a second stage, performing second compensation on the target torque of the main motor to obtain a third target torque, and performing second constraint on the target torque of the slave motor to obtain a fourth target torque. By adopting the method, when the torque of one motor crosses zero, a part of targets of the motor in an excessive state are transferred to the other motor, so that the influence on dynamic responsiveness is reduced while the smoothness of the vehicle is improved.

    本申请涉及新能源汽车技术领域,特别是涉及一种车辆加速方法、车辆加速装置以及车辆。车辆加速方法包括:获取第一电机与第二电机二者的扭矩状态;判定处于第一阶段,对主电机的目标扭矩进行第一约束得到第一目标扭矩,对从电机的目标扭矩进行第一补偿得到第二目标扭矩;主电机为处于过零状态的一者,从电机为未处于过零状态的一者;响应于主电机完成扭矩过零,判定进入第二阶段,对主电机的目标扭矩进行第二补偿得到第三目标扭矩,对从电机的目标扭矩进行第二约束得到第四目标扭矩。采用本方法在一电机扭矩过零时,将处于过量状态的电机的部分目标转移至另一电机,从而在改善车辆平顺性的同时降低对动力响应性的影响。


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    Title :

    Vehicle acceleration method, vehicle acceleration device and vehicle


    Additional title:

    车辆加速方法、车辆加速装置以及车辆


    Contributors:
    LI LIANGHAO (author) / ZHANG ZHENGPING (author) / HUANG DAFEI (author) / LIU XIAOFEI (author) / TANG RUYI (author) / CUI HUANYU (author) / TAN KAIBO (author)

    Publication date :

    2023-10-10


    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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