The invention provides a driver braking intention recognition method with a failure protection function. The method comprises the following steps that 1, the pressure of a brake master cylinder, the displacement of a brake pedal, the angular velocity of wheels and the pressure of the brake pedal are collected through a vehicle-mounted sensor; 2, based on the signals, the brake pedal speed, the brake master cylinder pressure change rate, the wheel linear speed, the wheel deceleration and the brake pedal pressure change rate are obtained through calculation; 3, whether the whole vehicle is braked or not based on the pressure of the brake master cylinder and the wheel deceleration is determined; 4, whether the brake pedal displacement sensor breaks down or not is determined based on the signals; 5, when the brake pedal displacement sensor has no fault, the brake pedal displacement and the brake pedal speed serve as input quantities, and brake intention recognition is completed based on fuzzy control; and 6, when the brake pedal displacement sensor breaks down, the wheel deceleration and the brake pedal pressure change rate serve as input quantities, and brake intention recognition iscompleted based on fuzzy control.

    本发明提供了一种具有失效保护功能的驾驶员制动意图识别方法,步骤如下:步骤一、通过车载传感器采集制动主缸压力、制动踏板位移、车轮角速度、制动踏板压力;步骤二、基于上述信号,计算得到制动踏板速度、制动主缸压力变化率、车轮线速度、车轮减速度、制动踏板压力变化率;步骤三、基于制动主缸压力和车轮减速度,判断整车是否制动;步骤四、基于上述信号,判断制动踏板位移传感器是否发生故障;步骤五、当制动踏板位移传感器无故障时,以制动踏板位移和制动踏板速度为输入量,基于模糊控制完成制动意图识别;步骤六、当制动踏板位移传感器发生故障时,以车轮减速度和制动踏板压力变化率为输入量,基于模糊控制完成制动意图识别。


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    Title :

    Driver braking intention recognition method with failure protection function


    Additional title:

    一种具有失效保护功能的驾驶员制动意图识别方法


    Contributors:
    YANG KUN (author) / WANG JIE (author) / XIAO JINZHAO (author) / WANG YOUTANG (author) / MA CHAO (author) / QIN ZHICHANG (author)

    Publication date :

    2020-10-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / 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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