The embodiment of the invention provides an electric vehicle hill starting control method, a controller, a storage medium and a vehicle, relates to the technical field of vehicle control, and can improve the jitter suppression effect generated by hill starting of an electric vehicle and improve the stability of vehicle operation. The method comprises the steps that the current starting gradient of a road where a vehicle is located is obtained, and the size relation between the current starting gradient and a gradient threshold value is judged; under the condition that the current starting gradient is larger than the gradient threshold value, the size relation between the current rotating speed corresponding to a motor of the vehicle and the rotating speed threshold value is judged; under the condition that the current rotating speed is smaller than the rotating speed threshold value, the size relation between the motor request torque of the vehicle and the shaking torque range corresponding to the current starting gradient is judged; under the condition that the motor request torque is within the shaking torque range, the ramp torque compensation coefficient of the vehicle at the current starting gradient is determined; according to the ramp torque compensation coefficient and the motor request torque, the motor starting torque of the vehicle is determined; and controlling the vehicle to start with the motor starting torque.
本申请实施例提供电动汽车坡道起步控制方法、控制器、存储介质及车辆,涉及车辆控制技术领域,可以提高电动车辆在坡道起步产生的抖动抑制效果,提高车辆运行的稳定性。该方法包括:获取车辆所处道路的当前起步坡度,以及判断当前起步坡度与坡度阈值的大小关系;在当前起步坡度大于坡度阈值的情况下,判断车辆的电机对应的当前转速与转速阈值的大小关系;在当前转速小于转速阈值的情况下,判断车辆的电机请求扭矩与当前起步坡度对应的抖动扭矩范围的大小关系;在电机请求扭矩处于抖动扭矩范围内的情况下,确定车辆在当前起步坡度的坡道扭矩补偿系数;根据坡道扭矩补偿系数和电机请求扭矩,确定车辆的电机起步扭矩;控制车辆以电机起步扭矩起步。
Electric vehicle hill starting control method, controller, storage medium and vehicle
电动汽车坡道起步控制方法、控制器、存储介质及车辆
2024-02-13
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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