Floor type brake master cylinder performance test device and method

Abstract

The invention discloses a floor type brake master cylinder performance test device. The device comprises an air source system, a fixed base, an adjustable support and a pressing rod mechanism; the adjustable support is arranged on the fixed base; a brake master cylinder is mounted on the adjustable support; the pressing rod mechanism is rotatably mounted on the top surface of the fixed base; the rotating shaft center is overlapped with the pedal rotating shaft center of the brake master cylinder; a pedal force sensor is arranged at the position, 160 mm away from the pedal rotating shaft of thebrake master cylinder, of the upper surface of the pedal; the pressing rod mechanism is provided with a roller abutting against the pedal force sensor through a support hanging rod, the central axisof the support hanging rod is perpendicular to the upper surface of the pedal force sensor, and a displacement sensor is fixed to the side face of the adjustable support and connected with the end ofthe pedal through a pull wire. The invention further discloses a floor type brake master cylinder performance test method, the pedal angle advancing amount can be accurately calculated through testingand calculation of the displacement sensor, the pedal angle advancing amount is not directly related to the starting point of the pull wire of the displacement sensor, and high applicability is achieved.

Description

technical field [0001] The invention relates to the technical field of automobiles, and more specifically refers to a floor-standing brake master cylinder performance test device and method. Background technique [0002] The brake master cylinder is an important component of the bus braking system and plays a key role in the braking system; the floor-mounted brake master cylinder is the most common form of the bus brake master cylinder; the brake master cylinder performance test device And methods play an important role in detecting, evaluating and improving the performance level of the component. [0003] The utility model patent with the application number of 201520270385.3 provides a performance test bench for automobile brake master cylinder with air cut-off brake, including a control panel and a cabinet, a fixing frame, and a brake test unit. Through this performance test bench for automobile brake master cylinder, you can Test the performance of the brake master cylin...

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a floor type brake master cylinder performance test device and method to solve the problem that the performance test error of the floor type brake master cylinder is large, it is difficult to ensure the force direction of the pedal force sensor, and it is impossible to make the pedal force sensor apply force Disadvantages such as keeping the position at all times

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