The invention discloses a brake pressure buildup device and method. The method comprises the steps that a rotor of a motor drives a lead screw of a ball screw pair to rotate; the lead screw rotates to drive the nut to do linear translational motion in the anti-rotation sleeve, and the nut drives the piston to do reciprocating linear motion in a cylindrical hole of the cylinder body. When the screw rotates in the forward direction, the lead screw drives the check ring to rotate synchronously, the nut is far away from the check ring in the axial direction, and the second protrusion of the nut is separated from the first protrusion of the check ring. When the lead screw rotates reversely, the nut gets close to the check ring in the axial direction, when the second protrusion of the nut abuts against the first protrusion of the check ring, the nut drives the piston to return to the original point, and the motor stops rotating. By the adoption of the technical scheme, when the nut drives the piston to return to the original point, the check ring and the nut abut against each other in the rotation tangential direction for stopping, and therefore the problem that the nut is locked is solved, and starting noise can be lowered.

    本申请公开了一种制动建压装置和方法,该方法包括电机的转子带动滚珠丝杠副的丝杠旋转;丝杠旋转驱动螺母在防转套筒内做直线平移运动,螺母带动活塞在缸体的圆柱孔中做往复直线运动;杠正向旋转时,丝杠带动止动环同步旋转,螺母沿轴向远离止动环,螺母的第二凸起与止动环的第一凸起分开;丝杠反向旋转时,螺母沿轴向靠近止动环,当螺母的第二凸起与止动环的第一凸起抵触时,螺母带动活塞回到原点,电机停止转动。采用了本申请的技术方案,由于螺母带动活塞回到原点时,止动环与螺母在回转切向抵触止动,从而解决了螺母被锁紧的问题,而且可以降低启动噪音。


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    Title :

    Brake pressure buildup device and method


    Additional title:

    一种制动建压装置和方法


    Contributors:
    XING HONGBIN (author) / ZHAI LINDUO (author) / TIAN YIRUN (author) / ZHAO WUCHAO (author) / ZHU WEIMIN (author) / LIN SEN (author) / RUAN FUXING (author)

    Publication date :

    2024-04-26


    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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