The invention discloses a four-wheel hub motor linear driving control method considering motor dynamic response difference, and relates to the technical field of new energy automobiles, and the method comprises the following steps: obtaining the total required torque of a vehicle according to the speed and pedal opening degree of the vehicle driven by the four-wheel hub motor; according to the total demand torque of the vehicle, an objective function and constraint conditions are established, and torque distribution is optimized; and based on an optimization result, carrying out linear driving coordination control on the four-wheel hub motor, and completing the linear driving control of the four-wheel hub motor considering the dynamic response difference of the motor. The method solves the problem that in the prior art, dynamic response differences of four motors are not considered, and the linear driving stability of the vehicle is difficult to guarantee.
本发明公开了一种考虑电机动态响应差异的四轮轮毂电机直线行驶控制方法,涉及新能源汽车技术领域,包括以下步骤:根据四轮轮毂电机驱动车辆的车速和踏板开度,获得车辆总需求扭矩;根据车辆总需求扭矩,建立目标函数和约束条件,对扭矩分配进行优化;基于优化结果,对四轮轮毂电机进行直线行驶协调控制,完成考虑电机动态响应差异的四轮轮毂电机直线行驶控制。本发明解决了现有技术没有考虑四个电机的动态响应差异,难以保证车辆直线行驶的稳定性的问题。
Four-wheel hub motor linear driving control method considering motor dynamic response difference
考虑电机动态响应差异的四轮轮毂电机直线行驶控制方法
2024-03-01
Patent
Electronic Resource
Chinese
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