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Modal Test Bench for Adjustable Automobile Steering System

A technology of automobile steering system and modal test, which is applied in the field of adjustable automobile steering system modal test bench, can solve problems such as high cost, inability to decompose the steering system target, and inability to calibrate parts and components, so as to ensure reasonable decomposition and reduce The risk of non-compliance and the effect of strong versatility

Active Publication Date: 2015-11-18
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the modal detection of the steering system can only be carried out in the vehicle state, so there are two defects in the existing method: on the one hand, since the verification can only be carried out on the vehicle, the target decomposition of the steering system cannot be performed, and the steering system cannot be tested. Each component in the system is calibrated in a single mode; on the other hand, the modal test in the vehicle environment cannot be reused due to lack of versatility, and the cost is high
However, this evaluation system cannot be used for the special modal test of the steering system, and cannot simulate the fixing of the steering support to the various components of the steering system.

Method used

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  • Modal Test Bench for Adjustable Automobile Steering System
  • Modal Test Bench for Adjustable Automobile Steering System
  • Modal Test Bench for Adjustable Automobile Steering System

Examples

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and embodiment the present invention will be further elaborated:

[0020] like figure 1 , 2 , the adjustable automobile steering system modal test bench shown in 3, comprising a base plate 4, two first mounting brackets 1, two second mounting brackets 2 and a third mounting bracket 3, on the base plate 4 along the front-rear direction Four bracket installation grooves 13 are provided in parallel, the section of the bracket installation groove 13 is an inverted T-shaped structure, and the bottoms of the first installation bracket 1, the second installation bracket 2 and the third installation bracket 3 are fixed by bolts and nuts On the bracket mounting groove 13 of the base plate 4, the head of the bolt is located in the bracket mounting groove 13, and its screw rod passes through the bottoms of the first mounting bracket 1, the second mounting bracket 2 and the third mounting bracket 3, the first mounting bracket 2 One m...

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Abstract

The invention relates to a modal test stand of an adjustable automobile steering system. The modal test stand of the adjustable automobile steering system comprises a base plate, two first installation supports, two second installation supports and a third installation support, wherein the supports are installed on the base plate and can move back and forth on the base plate, a first installation tubular column is erected between the first installation supports, a first connecting piece is arranged on the first installation tubular column, and a first steering tubular column installation plate is fixedly arranged on the first connecting piece; a second installation tubular column is erected between the second installation supports, a second connecting piece is arranged on the second installation tubular column, and a second steering tubular column installation plate is fixedly arranged on the second connecting piece; a sliding plate is arranged on the third installation support, and a steering gear installation block is arranged on the sliding plate. The modal test stand of the adjustable automobile steering system has the advantages of being simple in structure, easy to operate and realize, high in universality, and capable of guaranteeing the reliability and accuracy of a modal test.

Description

[0001] The invention relates to a test device for an automobile steering system, in particular to an adjustable modal test bench for an automobile steering system. Background technique [0002] With the increasingly stringent regulations on automobile noise and the improvement of users' requirements on NVH performance, the NVH control technology of automobiles is becoming more and more important. The vibration of the steering system is the main performance part of the NVH performance of the whole vehicle. The idling vibration of the steering wheel is the driver's subjective feeling of the quality of the car and one of the important indicators for the subjective evaluation of the NVH of the car. An important link in the vehicle development process that cannot be ignored. [0003] In the NVH development process of the automotive steering system, it is often necessary to improve the steering wheel modal, usually by adjusting the steering support of the steering system, the steeri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/06
Inventor 刘勇闵福江赵立峰文伟许建
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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