The invention discloses a whole vehicle torque zero-crossing control method and system of a new energy vehicle, a server side and a medium, and relates to the technical field of new energy vehicles. The control method comprises the following steps that the current accelerator opening degree of a vehicle, the actual torque of a rear motor, the required torque of the rear motor and a torque zero-crossing interval are obtained; when it is judged that the rear motor demand torque and the rear motor actual torque are both within the torque zero-crossing interval, the front motor demand torque and the rear motor demand torque are adjusted according to the set torque distribution ratio; when it is judged that at least one of the rear motor demand torque and the rear motor actual torque is not in the torque zero-crossing interval, the front motor demand torque and the rear motor demand torque are adjusted according to a preset data distribution table and the current accelerator opening degree of the vehicle; and controlling the front motor to rotate according to the adjusted front motor demand torque, and controlling the rear motor to rotate according to the adjusted rear motor demand torque. And front and rear motor demand torques are adjusted in different modes, and the vehicle torque zero-crossing jitter problem is optimized.
本发明公开了新能源汽车整车扭矩过零控制方法、系统、服务端及介质,涉及新能源汽车技术领域。该控制方法包括以下步骤:获取车辆当前的油门开度、后电机实际扭矩、后电机需求扭矩和扭矩过零区间;判断后电机需求扭矩和后电机实际扭矩均处于扭矩过零区间内时,则根据设定扭矩分配比调整前电机需求扭矩和后电机需求扭矩;判断后电机需求扭矩和后电机实际扭矩中至少一个未处于扭矩过零区间内时,根据预设数据分配表和车辆当前的油门开度,调整前电机需求扭矩和后电机需求扭矩;根据调整后的前电机需求扭矩控制前电机转动,以及,根据调整后的后电机需求扭矩控制后电机转动。采用不同的方式调整前后电机需求扭矩,优化车辆扭矩过零抖动问题。
Whole vehicle torque zero-crossing control method and system of new energy vehicle, server side and medium
新能源汽车整车扭矩过零控制方法、系统、服务端及介质
2023-11-14
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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