The application relates to a system for monitoring the loss of a brake pad of a motor vehicle, in which the motor vehicle comprises a brake device acting on each wheel of the motor vehicle, said brake device having a pad that is non-rotatable relative to the wheel but is linearly movable parallel to the axis of rotation of the wheel, the motor vehicle further comprises a hydraulic brake driving device and a brake fluid storage tank in fluid communication with the hydraulic brake driving device, and the hydraulic brake driving device is provided with a brake piston capable of moving linearly so as to act on the friction plates to generate brake force aiming at the wheels. The method comprises the following steps of: stably stopping the motor vehicle in a horizontal or approximately horizontal posture; the current liquid level in the brake fluid storage tank is determined; determining the volume variation of the brake fluid in the brake fluid storage tank based on a predetermined reference liquid level and the current liquid level; and under the condition that the wear thickness of the friction plate arranged for the front wheel or the rear wheel is known, the wear thickness of the friction plate arranged for the rear wheel or the front wheel is correspondingly determined by utilizing the volume variation of the brake fluid in the brake fluid storage tank and the diameter of a brake piston of the brake device.
本申请涉及机动车制动摩擦片损耗监测系统,其中,所述机动车包括作用于其每个车轮的制动装置,所述制动装置具有相对于车轮不可旋转但能够平行于车轮的旋转轴线直线移动的摩擦片,所述机动车还包括液压制动驱动装置以及与所述液压制动驱动装置流体连通的制动液存储罐,所述液压制动驱动装置具有能够直线移动的制动活塞,以作用于所述摩擦片产生针对车轮的制动力,所述方法包括:将所述机动车以水平或者大致水平的姿态停稳;确定所述制动液存储罐内的当前液位;基于事先确定的基准液位与所述当前液位来确定所述制动液存储罐内的制动液体积变化量;在为前轮或者后轮所配备的摩擦片的磨损厚度已知的情况下,利用所述制动液存储罐内的制动液体积变化量、所述制动装置的制动活塞的直径来相应确定为后轮或前轮所配备的摩擦片的磨损厚度。
Motor vehicle brake friction plate loss monitoring system
机动车制动摩擦片损耗监测系统
2022-11-22
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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