The invention provides a torque distribution method and device for a multi-motor electric vehicle and the electric vehicle. The electric automobile at least comprises three motors. The torque distribution method comprises the steps that torque distribution for M motors is determined according to the required torque of the electric vehicle and the maximum torque of each motor, and M is smaller than or equal to the total number of the motors; when M is larger than or equal to 3, n times of torque pre-distribution are conducted on the M motors according to a pre-distribution strategy, and n is larger than or equal to 1; determining the sum of the electric power of the M motors each time according to the pre-distributed torque of each motor and the efficiency of the motor; and determining the pre-distributed torque corresponding to the minimum value of the sum of the electric power as the torque distributed to the M motors. The working efficiency of the motor can be improved.
本申请提供一种多电机电动汽车的扭矩分配方法、装置及电动汽车。电动汽车至少包括三个电机。扭矩分配方法包括:根据电动汽车的需求扭矩和每个电机的最大扭矩,确定为M个电机分配扭矩,其中,M小于等于电机的总数量;当M≥3时,按照预分配策略为M个电机进行n次预分配扭矩,其中,n≥1;根据每个电机的预分配扭矩、电机的效率,确定每次M个电机的电功率之和;将电功率之和的最小值对应的预分配扭矩,确定为分配给M个电机的扭矩。本申请可提高电机工作效率。
Torque distribution method and device for multi-motor electric automobile and electric automobile
多电机电动汽车的扭矩分配方法、装置及电动汽车
2024-08-13
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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