Pedal effort detector

Abstract

A pedal effort detector comprises a shell, a transmission device and a detection mechanism. The transmission device is arranged inside the shell. The detection mechanism is arranged at the front end of the shell and connected with the transmission device. The transmission device comprises a main frame, an auxiliary sliding shaft, a main sliding shaft and a slippage mechanism. The slippage mechanism is installed on the main frame. Both the auxiliary sliding shaft and the main sliding shaft are connected to the slippage mechanism. The detection mechanism comprises a front end base, a front end top plate, a force sensor and a microswitch, wherein the front end base is connected with the main sliding shaft and the auxiliary sliding shaft, the front end top plate is installed on the front end base, a spring is arranged between the front end top plate and the front end base, the force sensor, a floating shaft and the microswitch are installed inside the front end base, and the floating shaft is connected with the front end top plate. According to the detector, parameters such as force applied to a vehicle braking system pedal, displacement generated on the vehicle braking system pedal, and time spent by operating the vehicle braking system pedal are collected in real time through the force sensor, the safe quality performance of the vehicle braking system is reflected, the measured data are accurate, and operation is easy and convenient.

Description

technical field [0001] The invention relates to an instrument for detecting the sealing performance and filling quality of an automobile brake system, and belongs to the technical field of brake pedal force detection. Background technique [0002] Evaluation and measurement of vehicle braking force is an important part of motor vehicle safety performance testing. In the process of automobile manufacturing, the brake system generally adopts the process of vacuuming and pressure filling, but there is no intuitive data for reference on the sealing performance and filling quality of the brake system. [0003] At present, the brake performance test method used by most domestic and foreign automobile manufacturers is the roller reaction brake test bench. It is composed of two sets of symmetrical wheel braking force test units and a set of indicating and controlling devices with the same structure. Each set of wheel braking force test unit is composed of frame, driving device, ro...

AI Technical Summary

Problems solved by technology

[0004] Although this type of roller reaction brake test bench has been widely used in the detection of automobile braking systems, the test bench cannot accurately test the performance of automobile braking systems with anti-ABS systems.

In addition, the pedal force and pedal stroke distance applied by human-operated brakes cannot be quantified, and are more determined by human experience.

This leads to inaccurate test results, more human errors, and the airtightness and filling quality of the automobile brake system cannot be guaranteed

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