The invention provides an abrupt slope descending control method, system and device for a new energy commercial vehicle, and relates to the technical field of vehicle driving control, and the method comprises the steps: receiving vehicle state information sent by a peripheral sensor set; performing weighted average calculation on the first downlink gradient information and the second downlink gradient information to determine a target downlink gradient; through a preset function switching model, gear analysis processing is conducted on the accelerator pedal signal, the brake pedal signal and the target descending gradient so that the working state of the abrupt slope descending auxiliary control function can be switched; and when the abrupt slope descending auxiliary control function is started, according to the vehicle speed, the vehicle weight information, the target descending gradient and the wind resistance and rolling friction force received by the new energy commercial vehicle in the descending running process, motor feedback force needed by vehicle descending deceleration is determined, so that a driving motor conducts vehicle descending auxiliary control according to the motor feedback force. The stability and comfort of the new energy commercial vehicle in the downhill process can be remarkably improved.
本发明提供了一种新能源商用车的陡坡下行控制方法、系统及装置,涉及车辆行驶控制的技术领域,包括:接收外设传感器集合发送的车辆状态信息;通过对第一下行坡度信息和第二下行坡度信息进行加权平均计算,确定目标下行坡度;通过预设功能切换模型,对油门踏板信号、制动踏板信号和目标下行坡度进行档位分析处理,以切换陡坡下行辅助控制功能的工作状态;当陡坡下行辅助控制功能开启时,根据车速、车辆重量信息、目标下行坡度以及新能源商用车在下坡行驶过程中收到的风阻和滚动摩擦力,确定车辆下坡减速所需的电机回馈力,以使驱动电机根据电机回馈力进行车辆下行辅助控制。本发明可以显著提升新能源商用车在下坡过程中的稳定性和舒适性。
Steep slope descending control method, system and device for new energy commercial vehicle
新能源商用车的陡坡下行控制方法、系统及装置
2025-01-07
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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