The invention discloses a parallel phase plane vehicle stability judgment method. The method comprises the following steps: 1) firstly, acquiring road environment information and vehicle motion state information; 2) calculating an ideal reference side slip angle and a yaw velocity of the vehicle; 3) selecting a side slip angle-side slip angle speed # imgabs0 # phase plane and a side slip angle-yaw velocity beta-gamma phase plane as vehicle stability judgment basis, and determining a stability boundary of the vehicle; 4) determining a boundary function of the phase plane stability boundary according to the stability boundary and a change rule of the stability boundary of the vehicle under different state parameters; 5) calculating a correlation function by the extension phase plane, and judging that the vehicle state is in a regional state; and (6) when the vehicle state is in a non-domain state, evolutionary game weight distribution is carried out on the calculated additional yawing moment, and the stability of the vehicle is maintained. According to the method, the stability indexes of different states of the vehicle can be more fully represented, and a judgment basis is provided for intervention and exit of vehicle stability control.
一种并联相平面车辆稳定性判断方法,包括以下步骤:1)首先获取道路环境信息和车辆运动状态信息;2)计算车辆理想参考质心侧偏角和横摆角速度;3)选择质心侧偏角—质心侧偏角速度#imgabs0#相平面和质心侧偏角—横摆角速度β‑γ相平面作为车辆稳定性判断依据,确定车辆的稳定性边界;4)依据稳定性边界以及车辆在不同状态参数下稳定性边界的变化规律,确定相平面稳定性边界的边界函数;5)可拓相平面计算关联度函数,判断车辆状态处于区域状态;6)当车辆状态处于非域时,将计算的附加横摆力矩进行演化博弈权重分配,维持车辆的稳定。本发明能更加充分的表征车辆不同状态的稳定性指标,为车辆稳定性控制的介入和退出提供了判断依据。
Parallel extension phase plane vehicle driving stability control method
一种并联可拓相平面车辆行驶稳定性控制方法
2024-10-11
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 |
Distributed driving electric vehicle stability control system and method based on phase plane
European Patent Office | 2022
|Distributed driving vehicle driving stability control method
European Patent Office | 2025
|Distributed driving electric vehicle stability control method for shared driving
European Patent Office | 2025
|Vehicle Stability Criterion Research Based on Phase Plane Method
British Library Conference Proceedings | 2017
|