Four-wheel drive braking force detection aided experiment device and experiment method

An experimental device, four-wheel drive technology, applied in the direction of measuring device, vehicle test, machine/structural component test, etc., can solve the problems of dependence, occupancy, low test efficiency, etc., and achieve convenient installation and disassembly, simple device structure, and detection high efficiency effect

Inactive Publication Date: 2015-04-22
SOUTH CHINA UNIV OF TECH
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AI Technical Summary

Problems solved by technology

The test bench can only test the braking performance of single-axis drive vehicles. Due to the unique power transmission system of the full-time four-wheel drive vehicle, the existing desktop testing equipment cannot complete the testing of its braking performance, and can only rely on road test testing.
The road test can dynamically test the real situation during the braking process of the car. Although it can reflect the braking performance of the whole vehicle, it cannot quantitatively analyze the braking condition of a single wheel, and the road test needs to occupy a specific site. Inefficient and susceptible to various natural conditions

Method used

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  • Four-wheel drive braking force detection aided experiment device and experiment method
  • Four-wheel drive braking force detection aided experiment device and experiment method

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Experimental program
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Embodiment

[0016] Embodiment: Before the vehicle inspection, the horizontal restraint roller 4 and its lifting device 5 are at the bottom of the restraint groove 6 under the action of their own weight. When the test vehicle enters the test line and is parked on the single-axis reaction roller brake test bench 1, the horizontal restraint roller 4 passes through the hydraulic system (hydraulic cylinder 3) and the lifting device 5, and is lifted according to the size of the wheel radius. to a certain height, and then drive the motor 7 to run, and the moving device 2 moves the horizontal restraint roller 4 horizontally along the direction of the threaded rod 8 under the action of the drive motor 7 until it keeps in good contact with the wheel, so as to provide a stable horizontal restraint force and prevent the vehicle from moving Then climb out of the drum. When the detection wheel rotates, the horizontal restraint roller 4 will also rotate thereupon, and provide horizontal restraint force,...

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Abstract

The invention discloses a four-wheel drive braking force detection aided experiment device and an experiment method. The device comprises a free roller set, a horizontal restraint roller, a hydraulic system, a lifting device and an electromotor. The lifting of the lifting device and the rotating of the electromotor are achieved by a controller. The experiment method can achieve the detection of the braking force of four-wheel drives with multiple wheel radiuses on an existing single axis roller counter-force type braking detection table through the regulation of the height and the front and back positions of the restraint roller. The four-wheel drive braking force detection aided experiment device and the experiment method can be reused, the mounting and dismounting are convenient, the cost is low, the efficiency is high, and the detection requirement of a monitoring station assembly line can be met.

Description

technical field [0001] The invention relates to the technical field of a four-wheel-drive vehicle braking force detection device, in particular to a four-wheel-drive vehicle braking force detection auxiliary experimental device and an experimental method, which provides a four-wheel-drive vehicle braking force rapid detection method for a single-axis roller reaction force braking test bench Auxiliary experimental device. Background technique [0002] With the rapid development of road traffic in our country, the number of automobiles is increasing, and the problem of automobile driving safety is becoming more and more prominent. Automobile braking performance is directly related to automobile driving safety. Studies have shown that half of automobile traffic accidents are related to automobile braking performance. Automobile braking performance has become an important indicator of automobile safety testing. At present, the market share of four-wheel drive vehicles is increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
Inventor 臧孟炎吴海涛徐文冰于善虎
Owner SOUTH CHINA UNIV OF TECH
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