The invention provides an abrupt slope slow descent control method and system. The method is used for carrying out abrupt slope slow descent control on a vehicle when the vehicle goes uphill and downhill, and comprises the following steps: receiving torque signals fed back from wheels of the vehicle under the condition that execution conditions of abrupt slope slow descent control are met; determining whether a difference between each torque corresponding to each torque signal is less than or equal to a predetermined threshold value; and the torque output to each wheel is controlled according to the judgment result, so that the vehicle runs at the preset target speed. According to the abrupt slope slow descent control method and system, the vehicle can directly output the torque to each wheel through the motor, the wheel torque can be fed back more quickly and more accurately in real time, and the vehicle can run at a low speed and a constant speed on the abrupt slope. In addition, according to the abrupt slope slow descent control method and system, an engine system, an ABS and an ESP system do not need to be depended on, and therefore abrupt slope slow descent control can be conducted through a simple structure.
本发明提供一种陡坡缓降控制方法和系统。该方法用于在车辆上下坡时进行对车辆的陡坡缓降控制,并且包括:在满足陡坡缓降控制的执行条件的情况下,接收从车辆的各车轮反馈的扭矩信号;判断与各扭矩信号相对应的各扭矩彼此之间的差是否小于或等于预定阈值;以及根据判断结果来控制向各车轮输出的扭矩,以使车辆按预定目标速度行驶。根据本发明实施例的陡坡缓降控制方法和系统,车辆可以利用电机直接向每个车轮输出扭矩,并且可以更快,更准确地实时反馈车轮扭矩,并使车辆在陡坡上保持低速且恒定速度行驶。此外,根据本发明实施例的陡坡缓降控制方法和系统,无需依赖于发动机系统、ABS和ESP系统,由此能够利用简单的结构来进行陡坡缓降控制。
Method and system for controlling slow descent of abrupt slope
陡坡缓降控制方法和系统
2022-03-01
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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