The invention discloses a fault detection method and device for an automobile vacuum boosting system and a storage medium. The method comprises the steps that the hydraulic ascending slope and the hydraulic descending slope of the vacuum boosting system are obtained in real time; when the hydraulic ascending slope is larger than a preset first slope threshold value, corresponding first time and afirst vacuum degree of the vacuum boosting system at the first time are obtained and recorded; when the hydraulic descending slope is larger than a preset second slope threshold value, corresponding second time and a second vacuum degree of the vacuum boosting system at the second time are obtained and recorded; a time difference value is obtained through calculation according to the first time and the second time, a vacuum degree difference value is obtained through calculation according to the first vacuum degree and the second vacuum degree when the time difference value is smaller than a preset first time period, and it is determined that the vacuum boosting system breaks down when the vacuum degree difference value is smaller than a preset first vacuum degree fluctuation threshold value. According to the fault detection method and device for the automobile vacuum boosting system and the storage medium, the fault detection accuracy and the fault alarm timeliness of the automobile vacuum boosting system can be improved.

    本发明公开了一种汽车真空助力系统故障检测方法、装置及存储介质,包括:实时获取真空助力系统的液压上升斜率和液压下降斜率;当液压上升斜率大于预设的第一斜率阈值时,获取并记录相应的第一时间和真空助力系统在第一时间的第一真空度;当液压下降斜率大于预设的第二斜率阈值时,获取并记录相应的第二时间和真空助力系统在第二时间的第二真空度;根据第一时间和第二时间计算获得时间差值,当时间差值小于预设的第一时间周期时,根据第一真空度和第二真空度计算获得真空度差值,当真空度差值小于预设的第一真空度波动阈值时,判定真空助力系统出现故障。本发明能够提高汽车真空助力系统故障检测的准确性以及故障报警的及时性。


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    Title :

    Fault detection method and device for automobile vacuum boosting system and storage medium


    Additional title:

    一种汽车真空助力系统故障检测方法、装置及存储介质


    Contributors:
    SUN JIANTAO (author) / ZHOU HOUJIANG (author) / FENG CHANGYONG (author) / GU JIANDONG (author) / LIN PEIJING (author)

    Publication date :

    2020-12-15


    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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