An automobile vacuum booster braking system comprises a mechanical vacuum pump, a vacuum pipeline, a vacuum booster, an ESC assembly and a vacuum degree sensor. A one-way valve is not arranged on a vacuum pipeline for connecting the mechanical vacuum pump to the vacuum booster to carry out medium-and-long-term pressure maintaining on the vacuum booster, an ESC assembly replaces the medium-and-long-term pressure maintaining function of the one-way valve through safety logic, and when a vehicle is powered on or started, a vacuum degree sensor detects the vacuum degree of the vacuum booster and transmits a vacuum degree signal to an ESC; when a driver steps on the brake, the ESC judges a vacuum signal from the vacuum degree sensor: if the vacuum degree is less than a designed threshold value,it is judged that the vacuum degree is insufficient, the ESC assembly actively pressurizes brake fluid, and therefore power-assisted braking is conducted. A one-way valve is canceled on a pipeline hardware structure, and safety logic is added to a vehicle body stability control system ESC to replace a medium-and-long-term parking pressure maintaining function of the one-way valve, so a pipeline is simplified, the arrangement is convenient, and the cost is reduced.

    一种汽车真空助力制动系统,包括机械真空泵、真空管路、真空助力器、ESC总成和真空度传感器;在所述连接机械真空泵至真空助力器的真空管路上不设置单向阀对真空助力器进行中长期保压,由ESC总成通过安全逻辑替代单向阀的中长期保压功能,车辆上电或启动时,由真空度传感器检测真空助力器的真空度,并将真空度信号传递给ESC;当驾驶员踩刹车,ESC对来自于真空度传感器的真空信号进行判定,若真空度小于设计阀值,则判定为真空度不足,由ESC总成对制动液进行主动加压,从而进行助力刹车。本发明在管路硬件结构上取消单向阀,由车身稳定控制系统ESC增加安全逻辑替代单向阀的中长期停车保压功能,以简化管路,方便布置,降低成本。


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    Titel :

    Automobile vacuum power-assisted braking system


    Weitere Titelangaben:

    一种汽车真空助力制动系统


    Beteiligte:
    LYU LINGZHI (Autor:in) / LI HAIXIA (Autor:in) / HE CHENYU (Autor:in)

    Erscheinungsdatum :

    2020-11-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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