The invention discloses a driving force distribution method and system for a distributed driving vehicle and the vehicle. Comprising the steps of determining a vehicle driving force distribution mode according to vehicle driving conditions; the driving force distribution mode comprises a first mode and a second mode; when the driving force distribution mode is a first mode, the rotating speed of the motor and the optimal efficiency distribution coefficient of the driving system corresponding to the required torque of the driver are obtained according to the operating parameters of the motor and the required torque of the driver; determining the driving force of each hub motor according to the optimal efficiency distribution coefficient of the driving system; when the driving force distribution mode is a second mode, the current working condition of the vehicle is determined according to the vehicle speed and yaw velocity deviation; and the driving force of each hub motor is obtained according to the current working condition. According to the method, an energy-saving and stable longitudinal driving force distribution algorithm is considered, an optimization mechanism and switching time for economy and stability are formulated, different driving force distribution modes are set for different driving working conditions during stability control, and a good control effect is achieved.
本发明公开了一种分布式驱动汽车的驱动力分配方法、系统及车辆。包括:根据车辆驾驶工况确定车辆驱动力分配模式;所述驱动力分配模式包括第一模式和第二模式;当驱动力分配模式为第一模式时,根据电机运行参数和驱动器的需求扭矩得到电机转速和和驱动器的需求扭矩对应的驱动系统最佳效率分布系数;根据驱动系统最佳效率分布系数确定每台轮毂电机的驱动力;当驱动力分配模式为第二模式时,根据车速和横摆角速度偏差确定车辆当前工况;根据当前工况得到每台轮毂电机的驱动力。本发明兼顾节能稳定的纵向驱动力分配算法,制定针对经济性和稳定性的优化机制和切换时间,并在稳定性控制时对不同的行驶工况设置不同的驱动力分配方式,达到良好控制效果。
Driving force distribution method and system for distributed driving vehicle and vehicle
一种分布式驱动汽车的驱动力分配方法、系统及车辆
2024-07-16
Patent
Electronic Resource
Chinese