The invention relates to an anti-slope-sliding control strategy for a motor for an electric vehicle, which comprises the following steps of: judging whether an anti-slope-sliding function of the motor is started or not, respectively controlling by judging whether a current gear is a processing gear D or a processing gear R after the anti-slope-sliding function is met and the motor is started, judging whether an anti-slope-sliding rotating speed is less than a set negative rotating speed or not if the current gear is at the gear D, adjusting the rotating speed to be 0 by PI (Proportional Integral) if the current gear is at the gear R, and adjusting the rotating speed to be 0 if the current gear is at the gear R; and judging whether the anti-slip rotation speed is greater than a set positive rotation speed or not, and if so, adjusting the rotation speed to be 0 by PI. According to the technical scheme, when a conventional gear is switched, anti-slope-sliding control cannot be triggered, the anti-slope-sliding control can be triggered only when the gear is the R gear and the rotating speed is larger than the set positive rotating speed, and the D gear is switched into the R gear when the vehicle is not stably stopped under the working condition of rapid gear shifting and garage moving; or when the gear R is switched to the gear D, the false triggering phenomenon can be caused, and the problems of pause and impact of the vehicle are caused.
本发明涉及一种电动汽车用电机防溜坡控制策略,通过判断是否启动电机防溜坡功能,在符合防溜坡功能并启动后,通过判断当前档位是处理D档或R档进行分别控制,若在D档,判断防溜坡转速是否小于设定负转速,若是则PI调节使转速为0,若在R档,判断防防溜坡转速是否大于设定正转速,若是则PI调节使转速为0。本技术方案在常规的档位切换时,不会触发防溜坡控制,只有在档位R档时,且转速大于设定正转速,才能触发防溜坡控制,解决了在快速换挡移库工况时,即车未停稳,就由D档切为R档;或者由R档切为D档时,会引起误触发现象,导致车辆顿挫、冲击问题。
Slope sliding prevention control strategy for motor of electric vehicle
一种电动汽车用电机防溜坡控制策略
2023-11-03
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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