The invention provides a vehicle stability control method and device based on a low-attachment working condition and a new energy vehicle. The method comprises the steps that the slip rate of a current vehicle is obtained, and whether the current vehicle is in a low-load working condition is judged based on the slip rate; when it is monitored that the vehicle triggers the anti-reverse-rotation function, the rotation state of wheels of the vehicle is judged through a preset wheel reverse-rotation trend judgment method so as to determine whether the wheels of the vehicle are in a reverse-rotation state or not; when it is judged that the vehicle is in the low-attachment working condition and at least one wheel of the vehicle is in the reverse rotation state, a preset torque anti-reverse rotation attenuation coefficient is reset, and the sliding recovery torque of the current vehicle is adjusted through the reset torque anti-reverse rotation attenuation coefficient; and the adjusted sliding recovery torque is transmitted to a driving motor to execute torque control, so that the reverse rotation trend of the wheels is slowed down. The reverse rotation trend of the wheels can be slowed down, the driving stability of the vehicle under the low-load working condition is guaranteed, and the driving experience and the driving safety are improved.
本申请提供了一种基于低附工况的车辆稳定性控制方法、装置及新能源汽车。该方法包括:获取当前车辆的滑移率,基于滑移率判断当前车辆是否处于低附工况;当监控到车辆触发防反转功能时,利用预定的车轮反转趋势判定方法,对车辆的车轮的转动状态进行判断,以确定车辆的车轮是否处于反转状态;当判断车辆处于低附工况,且车辆的至少一个车轮处于反转状态时,将预定的扭矩防反转衰减系数进行重置,利用重置后的扭矩防反转衰减系数对当前车辆的滑行回收扭矩进行调整;将调整后的滑行回收扭矩传递给驱动电机执行扭矩控制,以减缓车轮的反转趋势。本申请能够减缓车轮的反转趋势,保证车辆在低附工况下的行驶稳定性,提升驾驶体验和行车安全性。
Vehicle stability control method and device based on low-attachment working condition and new energy vehicle
基于低附工况的车辆稳定性控制方法、装置及新能源汽车
2023-07-28
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Vehicle path tracking control method and device suitable for attachment limit working condition
European Patent Office | 2023
|European Patent Office | 2023
|European Patent Office | 2023
|Vehicle working condition identification method and working condition identification device
European Patent Office | 2025
|Vibration control method and device for vehicle working condition and vehicle
European Patent Office | 2024
|