The invention discloses an intelligent automobile stability control system based on tire cornering stiffness estimation. The intelligent automobile stability control system comprises a driver-vehicle-road comprehensive information acquisition module, a control variable expected value calculation module, a target stabilizing moment calculation module and a moment distribution mode selection module. According to the invention, information acquired by a driver-vehicle-road comprehensive information acquisition module is utilized to calculate a tire cornering stiffness mutation factor and selectively start a tire cornering stiffness dynamic estimator based on a depth deterministic strategy gradient algorithm, so that a control variable expected value is accurately calculated; and calculating a target stable moment by using an adaptive fuzzy integral sliding mode algorithm, and determining a moment distribution mode according to the numerical values of the three factors and a moment distribution mode selection rule. According to the method, the tire cornering stiffness can be estimated in time according to the sudden change degree of the tire cornering stiffness, and the transverse stability control effect of the electric automobile is guaranteed.

    本发明公开了一种基于轮胎侧偏刚度估计的智能汽车稳定性控制系统,包括驾驶员‑车辆‑道路综合信息获取模块、控制变量期望值计算模块、目标稳定力矩计算模块和力矩分配方式选择模块。本发明利用驾驶员‑车辆‑道路综合信息获取模块所采集的信息,计算轮胎侧偏刚度突变因子并选择性开启基于深度确定性策略梯度算法的轮胎侧偏刚度动态估计器,进而准确计算控制变量期望值,再利用自适应模糊积分滑模算法计算目标稳定力矩,并根据三种因子数值大小和力矩分配方式选择规则确定力矩分配模式。本发明能够根据轮胎侧偏刚度的突变程度,适时地估计轮胎侧偏刚度,保证电动汽车横向稳定性控制效果。


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    Title :

    Intelligent automobile stability control system based on tire cornering stiffness estimation


    Additional title:

    一种基于轮胎侧偏刚度估计的智能汽车稳定性控制系统


    Contributors:
    ZHENG HONGYU (author) / LI XIAOLONG (author)

    Publication date :

    2024-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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