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Passenger car steering wheel single mode testing device

A modal test and steering wheel technology, which is applied in the direction of measuring devices, vehicle testing, machine/structural component testing, etc., can solve problems such as steering system modal substandard, steering wheel single modal calibration, etc., to reduce the modal The risk of non-standard status, simple and easy operation, and the effect of ensuring reliability and accuracy

Active Publication Date: 2014-06-18
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most automobile manufacturers only calibrate the steering system mode, and use calibration equipment (such as LMS) to directly test the steering system mode, without tooling, and do not calibrate the single mode of the steering wheel. The risk of substandard steering system mode

Method used

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  • Passenger car steering wheel single mode testing device
  • Passenger car steering wheel single mode testing device
  • Passenger car steering wheel single mode testing device

Examples

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] figure 1 It is an exploded schematic diagram of the modal test device for a single passenger car steering wheel according to the present invention, including a base 1, a steering wheel mounting bracket 2 fixed on the base, two base fixing bolts 3, two base fixing nuts 4, and a gasket 5 , Steering wheel fastening nut 6 and floor chute 7. The base 1 is fixed on the floor chute 7 by the base fixing bolt 3 and the base fixing nut 4, the bottom surface of the base 1 is close to the floor chute 7, and the thickness of the base 1 is 30mm. The steering wheel mounting bracket 2 is fixed on the base 1, the steering wheel mounting bracket 2 is multi-step cylindrical, and its height is 80mm. The steering wheel fastening nut 6 and the steering wheel fastening washer 5 for installing and fastening the steering wheel are housed on the steering wheel mounting bracket 2 . The...

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Abstract

The invention discloses a passenger car steering wheel single mode testing device which comprises a base, a steering wheel installation bracket, base fixing bolts, base fixing nuts, a washer and a steering wheel fastening nut, wherein the base is fixed on a floor sliding groove through the base fixing bolts and the base fixing nuts, the steering wheel installation bracket is fixed on the base, and the steering wheel installation bracket is equipped with the steering wheel fastening nut used for installing and fastening a steering wheel. The passenger car steering wheel single mode testing device of the invention is suitable for testing a single mode of a steering wheel. In order to improve the testing precision, the installation position of the base is fixed, the grounding mode is not less than 1000Hz, and the installation angle of the steering wheel is unchanged. Normalization and consistency of testing are ensured, the influence of the steering wheel installation angle and the base installation stiffness is eliminated, and the influence of human factors to test results is also eliminated.

Description

technical field [0001] The invention relates to the technical field of automobile chassis vibration and noise testing, in particular to a single mode testing device for a steering wheel of a passenger car. Background technique [0002] With the continuous improvement of car users' requirements for car comfort, car NVH has been paid more and more attention by many car manufacturers, and the vibration of the steering wheel that directly contacts the human body is a focus of car NVH. The single mode of the steering wheel affects the mode of the steering system, thereby affecting the vibration level of the steering wheel. Therefore, measuring the single mode of the steering wheel is of great significance for steering wheel vibration control. [0003] Automobile steering wheel unit test requires a fixture, on the one hand, it can be applied to the installation of various types of passenger car steering wheels, which is beneficial to the excitation of the hammer; Test standardiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
Inventor 李沙文伟赵立峰许建余雄鹰
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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