The invention relates to a hill-holding torque determination method and device, a motor controller and a vehicle, and relates to the technical field of vehicles, and the method comprises the steps that the whole vehicle rotational inertia of the vehicle, the motor rotating speed of a motor and the target braking torque output by the whole vehicle controller are input into a torque observer, and the predicted load torque is obtained; under the condition that a first error between the predicted load torque and an actual load torque meets a first preset condition, taking the predicted load torque when the first error meets the first preset condition as a target load torque; and according to the target load torque and the torque output by the rotating speed ring of the vehicle, the hill-holding torque is determined. By using the slope-holding torque method provided by the invention, the slope-holding torque can be quickly obtained, and the vehicle is prevented from slipping or rushing forward when being held on the slope.
本公开涉及一种驻坡扭矩确定方法、装置、电机控制器与车辆,涉及车辆技术领域,该方法包括:将该车辆的整车转动惯量、该电机的电机转速以及该整车控制器输出的目标制动扭矩输入至扭矩观测器中,得到预测负载扭矩;在所述预测负载扭矩与实际负载扭矩之间的第一误差满足第一预设条件的情况下,将所述第一误差满足所述第一预设条件时的预测负载扭矩作为目标负载扭矩;根据该目标负载扭矩与该车辆的转速环输出的扭矩,确定驻坡扭矩。使用本公开提出的驻坡扭矩方法,可以快速得到驻坡扭矩,避免车辆在驻坡时溜坡或前冲。
Slope-holding torque determination method and device, motor controller and vehicle
驻坡扭矩确定方法、装置、电机控制器与车辆
2024-11-22
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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