Durability testing stand of electric power-assisted steering system

An electric power steering, system life technology, applied in the direction of vehicle steering/jump performance, mechanical component testing, machine/structural component testing, etc. Achieve the effect of simplifying the structure, reducing the cost of manufacturing and testing

Inactive Publication Date: 2007-08-15
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the characteristics and functions of the power drive device and controller in the EPS are not fully utilized and utilized; second, the structure of the above-mentioned existing steering system life test bench is relatively complicated and the cost is high; third, the life test is generally Hundreds or even thousands of hours need to be carried out continuously, and the EPS life test is carried out on the above-mentioned existing life test bench, and the test cost is very expensive

Method used

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  • Durability testing stand of electric power-assisted steering system
  • Durability testing stand of electric power-assisted steering system
  • Durability testing stand of electric power-assisted steering system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Referring to FIG. 2 , the EPS life test bench of the present invention is composed of a tested EPS sample 8 , a power supply module 9 , a signal generating module 10 , a display instrument module 11 , and a loading device 12 .

[0024] The EPS sample 8 under test in Fig. 2 comprises a steering wheel 1, a steering column 2, a steering gear 3, a speed reducer 4, a torque sensor 5, a motor assembly 6, a controller 7, etc., wherein the steering wheel (1), The steering column (2), the steering gear (3) and the like constitute a mechanical steering system. The output signal of the steering sensor 5 is directly connected to the display instrument module 11; the controller 7 transmits the voltage signal to the motor assembly 6, and at the same time provides working power to the steering sensor 5, and transmits the fault signal to the display instrument module 11; the motor assembly 6 is connected to the mechanical steering system through the reducer 4; the output end of the mec...

Embodiment 2

[0043] In order to make the cycle and amplitude of the steering wheel torque, vehicle speed, engine speed and other signals generated by the signal generating module 10 adjustable and convenient to meet the requirements of the variable working condition test, an industrial control computer and corresponding peripheral circuit boards can be used controller to generate the above signal. At the same time, through the preparation of corresponding data acquisition and processing software, the display will display the relevant test data and status. Figure 7(c) is a schematic diagram of the experimental parameter setting and data display of this method. The left half of the display 18 is a button for setting relevant parameters, including preset vehicle speed, engine speed, steering wheel torque signal type, period and amplitude, number of tests, etc. At the same time, there are related buttons for controlling the test process on the left half of the display 18. Through these button...

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PUM

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Abstract

This invention relates to one motor aid rotation system life test bench, which comprises tested EPS sample, signal generation module, display meter module and load device, wherein, the EPS sample comprises rotation disc, rotation part, rotation sensor and motor bus and controller; controller is to send the voltage signal into motor bus and to sensor with work power and to send the fault signal into display meter module; motor bus is connected with mechanic system through acceleration device with output end connected with load device; signal generation module is connected to controller, display device module.

Description

technical field [0001] The present invention relates to a life test bench of an automobile electric power steering system (hereinafter referred to as EPS), in particular to a life test bench using some functional components of the EPS itself as functional components of the test bench. Background technique [0002] Steering system is a key component of automobile driving safety, and it is very necessary to carry out life test on it. The existing steering system life test bench is mainly equipped with a power drive device that replaces manual steering manipulation, a sensor assembly that detects steering manipulation force and angle, and a loading device that simulates steering resistance, which are used for data collection and processing, test bench fault detection, The control module with functions such as safety alarm and automatic stop test, the display instrument module for displaying the test status, and the signal generation module are composed, as shown in Figure 1. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00G01M17/06
Inventor 季学武陈奎元姜殿鑫
Owner TSINGHUA UNIV
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