The invention provides a control method of a vacuum boosting system and a storage medium. The vacuum boosting system acquires a vacuum pressure value in the system; whether the vacuum pressure value reaches a first preset threshold value and a second preset threshold value or not is sequentially judged; and after the vacuum pressure value reaches the second preset threshold value, a vacuum pump enters a self-learning mode, the saturation of the vacuum pressure value is detected according to the brake pedal state and the pressure difference value of the vacuum pressure value in unit time, the second preset threshold value of the vacuum pump is obtained, and the current first preset threshold value of the vacuum pump is obtained by inquiring a corresponding relation table of the first presetthreshold value and the second preset threshold value of the vacuum pump. The learning mode of the preset threshold value is automatically adjusted through the boosting system, so that the saturationdegree of the vacuum boosting system is detected in real time, and seamless connection from the low altitude to the high altitude and from the high altitude to the low altitude is effectively achieved. On the premise of reducing the cost, the problem that the vacuum degree of a vacuum boosting system cannot reach a preset value due to trace air leakage and other factors is solved.

    本发明提供了一种真空助力系统的控制方法及存储介质,真空助力系统获取到系统内的真空压力值,再依次判断真空压力值是否达到第一预设阈值和第二预设阈值,在达到第二预设阈值后,真空泵进入自学习模式,根据制动踏板状态和真空压力值在单位时间内的压力差值,以实现检测真空压力值的饱和度,并获取真空泵的第二预设阈值,通过查询真空泵的第一/第二预设阈值的对应关系表,获取真空泵的当前第一预设阈值。本发明通过助力系统自动调整预设阈值的学习模式,以实时检测真空助力系统的饱和度,有效实现从低海拔到海拔、从高海拔到低海拔无缝衔接。在实现降本的前提下,解决了真空助力系统在微量漏气以及其他引起真空度无法达到预定值的问题。


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    Title :

    Control method of vacuum boosting system and storage medium


    Additional title:

    真空助力系统的控制方法及存储介质


    Contributors:
    GAO BO (author) / CHEN DONG (author) / LIN FU (author) / ZHAI JUN (author) / LI ZONGHUA (author)

    Publication date :

    2020-04-10


    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



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