The invention provides an electromechanical brake booster device. In an electromechanical brake booster device, when a brake pedal (BP) is depressed, a lever (40) that moves linearly in the axial direction drives a motor unit (60) by the operation of the lever (40), and rotational motion is converted into linear motion of a screw member (81) by a rotational-linear motion conversion unit (80). A piston (130) of a master cylinder (120) filled with brake fluid for hydraulic braking is moved by the linear movement of the screw member (81), and the problem of poor contact function with the piston (130) of the master cylinder (120) due to the cutting of a threaded portion of the screw member (81) or the wear of a contact surface is eliminated. A push plate (44) is inserted between the front end surface (81a) of the screw member and the connecting surface (130a) of the piston, is in contact with the front end surface of the screw member and the connecting surface of the piston, has a plate shape, and is made of a rigid material.

    本发明提供一种机电式制动助力装置。在机电式制动助力装置中,在制动踏板(BP)被踩下时,通过在轴向上直线运动的控制杆(40)的工作,控制杆驱动马达部(60),通过旋转直动变换部(80)将旋转运动变换为螺杆构件(81)的直线运动,并通过螺杆构件(81)的直线运动使填充了用于油压制动的制动液的主缸(120)的活塞(130)移动,消除由于螺杆构件(81)的螺纹部的切断或接触面的磨损而导致与主缸(120)的活塞(130)的接触功能不良的疑虑。在螺杆构件的前端面(81a)与活塞的连接面(130a)之间,插装有推板(44),推板与螺杆构件的前端面和活塞的连接面接触并呈板状,且由刚性材料形成。


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    Title :

    Electromechanical brake booster


    Additional title:

    机电式制动助力装置


    Contributors:

    Publication date :

    2023-02-24


    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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