The invention relates to the technical field of pure electric vehicle speed control, in particular to a pure electric vehicle speed processing control method and related equipment. The method comprises the steps that after a whole vehicle is powered on, the actual driving state of the whole vehicle is judged according to vehicle information; a standby vehicle speed value is determined based on the actual driving state of the whole vehicle; starting a vehicle speed safety strategy according to the standby vehicle speed value, and processing and controlling the vehicle speed of the pure electric vehicle through the vehicle speed safety strategy. According to the method, the wheel edge rotating speed is calculated through the motor torque and the rotating speed, and then the approximate real vehicle speed is estimated. According to the method strategy, under the condition that the vehicle speed or the wheel speed of a braking system fails, normal work of a longitudinal and transverse control system of the vehicle can be kept, then the function safety level of the vehicle is improved, and unexpected loss of transverse and longitudinal control of the vehicle is reduced.
本发明涉及纯电动汽车车速控制技术领域,具体为一种纯电动车车速处理控制方法及相关设备。该方法的步骤包括整车上电后,根据车辆信息判断整车的实际驾驶状态;基于整车的实际驾驶状态确定得到备用车速值;根据备用车速值启动车速安全策略,通过车速安全策略进行纯电动车车速处理控制。本发明通过电机扭矩和转速推算出轮边转速,进而估算出大致的真实车速。此方法策略可以在制动系统车速或轮速失效的情况下,保持车辆的纵向和横向控制系统正常工作,进而提高车辆的功能安全等级,减少非预期的失去车辆的横向和纵向控制。
Vehicle speed processing control method for pure electric vehicle and related equipment
一种纯电动车车速处理控制方法及相关设备
15.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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