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Stand for testing reliablity of electric appliances of four cylinder vehicle

A kind of electrical equipment and driving technology, which is applied in the field of vehicle testing, can solve the problems of not being able to provide high-load vibration output, etc., and achieve the effects of shortening the test period, reasonable layout, and strengthening vibration load

Inactive Publication Date: 2003-09-03
SHANGHAI JIAO TONG UNIV
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a four-cylinder drive type vehicle electrical equipment reliability test bench, eliminate the vibration output of the general hydraulic servo vibration test bench in the prior art that cannot provide high load, and Other types of automobile performance test benches cannot produce the shortage of vibration conditions, so that they can apply vibration loads of more than tens of kilonewtons and carry out simulation tests on vehicle electrical equipment indoors, thereby changing the existing various types of vehicle testing devices It can only carry out the overall vibration test of light vehicles or can only simulate the various driving motions of the car but not the technical limitations of the vibration of the car. It meets the requirements of heavy trucks and other heavy vehicles including instrument panels, combination switches, junction boxes, wiring harnesses, lights, Requirements for the performance test of each assembly of electrical equipment such as motors

Method used

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  • Stand for testing reliablity of electric appliances of four cylinder vehicle
  • Stand for testing reliablity of electric appliances of four cylinder vehicle
  • Stand for testing reliablity of electric appliances of four cylinder vehicle

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Embodiment Construction

[0009] As shown in Figure 1, the present invention includes: a base plate 1, four hydraulic cylinders 2, an upper hinge support 3, a lower hinge support 4, and a chassis girder 5; the four hydraulic cylinders 2 are basically vertically arranged on the base plate 1 The upper, the front and the rear are set separately, and the cylinder body is respectively connected and fixed with the base plate 1 through four lower hinge supports 4, and the piston rod output ends of the four hydraulic cylinders 2 are respectively connected with the four upper hinge supports 3. The chassis girder 5 is connected; each assembly of the electrical equipment of the vehicle under test is installed and fixed on the plane of the chassis girder 5 according to its actual position on the vehicle, and when the piston rods of the four hydraulic cylinders 2 move back and forth at a certain frequency and stroke At the same time, the chassis girder 5, together with each assembly of the vehicle electrical equipme...

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Abstract

A reliability tester of electric devices for 4-cylinder driven type vehicle is composed of foundation plate, 4 hydraulic cylinders upper and lower hinged supporters arranged to top and bottom ends of 4 hydraulic cylinders, and chassis beam. Said 4 hydraulic cylinders are divided into front two and back two between said foundation plate and chassis beam. The electric devices to be tested are installed on the chassis beam according to their actual positions in vehicle. Its advantages are simple structure, high reliability and low cost.

Description

technical field [0001] The invention relates to a test device for the performance of auxiliary equipment on a vehicle, in particular to a four-cylinder drive type vehicle electrical equipment reliability test bench, which belongs to the field of vehicle test in mechanical engineering. Background technique [0002] Heavy-duty trucks used to transport bulk goods in factories, mines, construction and water conservancy sites often cause reliability failures and early damage to vehicle electrical equipment due to their harsh road driving conditions. For this, the national standard for automobile road test methods proposes to conduct automobile reliability and durability tests. permanent test or indoor simulation test, to provide quality assurance and control means for the vehicle electrical system, including instrument panel, combination switch, junction box, wiring harness, lamp, motor and other electrical equipment assemblies, which are suitable for road transportation condition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60S9/14G01M7/02G01M17/00
Inventor 程晓鸣邵华缪正清顾力强
Owner SHANGHAI JIAO TONG UNIV
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