The invention discloses an output torque determination method, system and device and a computer readable storage medium, and the method can monitor the mass of a whole vehicle, and determines a torque factor and a torque rise rate factor according to the mass of the whole vehicle and the current opening degree of an accelerator pedal. And determining a request torque according to the torque factor and a torque value corresponding to the current accelerator pedal opening degree. And corresponding acceleration curves can be selected according to different working conditions, so that the situation that the energy utilization rate of the motor is reduced due to the fact that a single acceleration curve is adopted under any working condition is avoided. Besides, the target torque change rate is determined according to the current torque value, the request torque and the torque rise rate factor, so that the vehicle can change from the current torque value to the request torque based on the target torque change rate, the motor torque rate can be slowed down, the motor peak torque can be limited, the acceleration curve can be slowed down, and the vehicle speed can be increased. Along with further increase of the load, the torque and the torque rising speed are gradually released, so that the vehicle can run stably.
本发明公开输出扭矩的确定方法、系统、装置及计算机可读存储介质,该方法可以监测车辆整车质量,根据整车质量以及当前油门踏板开度确定扭矩因子和扭矩上升速率因子,进而根据该扭矩因子以及当前油门踏板开度对应的扭矩值确定请求扭矩。也即能根据不同的工况选择对应的加速曲线,从而避免在任意工况下均采用单一的加速曲线导致电机能源利用率下降。另外,根据当前扭矩值、请求扭矩和扭矩上升速率因子确定目标扭矩变化率,使得车辆能从当前扭矩值基于该目标扭矩变化率变化至请求扭矩,使得在加速工况下,可放缓电机扭矩速率和限制电机峰值扭矩,加速曲线可进行放缓,随着载荷进一步增加,扭矩及扭矩上升速率逐步放开,使得车辆可以平稳运行。
Output torque determination method, system and device and computer readable storage medium
输出扭矩的确定方法、系统、装置及计算机可读存储介质
2023-05-05
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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