The invention discloses a slope starting auxiliary control method and system of an intelligent crawling mode and an automobile. The method comprises the following steps: starting an intelligent crawling mode; when the slope starting auxiliary function is activated, the braking system conducts pressure maintaining and timing; and a corresponding slope starting auxiliary control strategy is selected according to the pressure maintaining duration, the real-time torque of the motor and the opening degree of the accelerator pedal. The corresponding slope starting auxiliary control strategy is selected according to the pressure maintaining duration, the real-time torque of the motor and the opening degree of the accelerator pedal, and the situation that when the torque of the motor rises and breaks through the pressure maintaining value, the ESC increases the pressure maintaining value, pressure maintaining of the slope starting auxiliary function conflicts with rising of the torque of the motor, and power waste is caused is avoided; the vehicle starting smoothness can be improved, and the driving feeling is improved; the conflict between torque output and pressure maintenance is avoided on the basis of ensuring that the vehicle does not slide backwards, unnecessary energy loss is reduced, and the driving range of the electric vehicle is increased; and meanwhile, as the HHC dwell time is shortened, the service life of the ESC module can be prolonged.
本发明公开了一种智能蠕行模式的坡起辅助控制方法、系统及汽车。该方法包括:开启智能蠕行模式;当坡起辅助功能激活时,制动系统进行保压并计时;根据保压时长、电机实时扭矩和加速踏板开度选择对应的坡起辅助控制策略。本发明通过保压时长、电机实时扭矩和加速踏板开度选择对应的坡起辅助控制策略,避免当电机扭矩上升突破保压值时导致ESC增加保压值,造成坡起辅助功能的保压和电机扭矩上升冲突,造成动力的浪费;发明能够提升车辆起步的平顺性,提升了驾驶感受;实现在保证车辆不后溜的基础上避免了扭矩输出和压力保持之间的冲突,减少了不必要的能量损耗,提升了电动汽车续驶里程;同时由于HHC保压时间减少,可提高ESC模块的工作寿命。
Slope starting auxiliary control method and system of intelligent crawling mode and automobile
智能蠕行模式的坡起辅助控制方法、系统及汽车
2024-05-10
Patent
Electronic Resource
Chinese
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 |
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