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Device and method for measuring steering noise of automobile

A technology for noise measurement and automobiles, which is applied to measurement devices, vehicle tests, and measurement of ultrasonic/sonic/infrasonic waves, etc. It can solve the problems that the measuring device is easily affected by the outside world, cannot meet the noise detection, and has low measurement accuracy.

Active Publication Date: 2014-07-16
HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention mainly solves the technical problem that the steering pump measuring platform cannot meet the comprehensive noise detection of the steering system, and the measuring device is easily affected by the outside world, the measurement accuracy is not high, and the noise detection at high-precision and multi-steering speeds cannot be satisfied during ordinary vehicle detection; it provides An automobile steering noise measurement device and measurement method that can eliminate external influences and can accurately detect steering noise at different speeds

Method used

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  • Device and method for measuring steering noise of automobile
  • Device and method for measuring steering noise of automobile
  • Device and method for measuring steering noise of automobile

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Embodiment

[0031] Embodiment: a kind of automobile steering noise measurement system of the present embodiment, such as figure 1 As shown, it is installed in the car, and the car is placed in a closed test room. The measurement system includes a simulated steering unit and a noise measurement unit. The simulated steering unit is as follows: figure 2 As shown, it includes a bracket 2 and a simulated steering gear 3. The bracket includes a column 22 and a beam 23. The bottom of the column is designed with a fixing plate 24. The fixing plate fixes the bracket on the floor on both sides of the driver's seat 13. The middle part of the beam of the bracket is fixed with an adjustment Rod 21, one end of the adjustment rod is connected with the support, and the analog steering gear is installed on the other end of the adjustment rod, such as image 3 As shown, there is an adjustment groove 211 on the shaft of the adjustment rod, and the analog steering gear is movably connected with the adjustme...

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Abstract

The invention discloses a device and a method for measuring steering noise of an automobile. The device comprises a simulation steering unit and a noise measuring unit, the simulation steering unit comprises a support and a simulation steering gear, the simulation steering gear comprises a motor base, a rocker arm and a steering wheel clamp, a steering motor is arranged in the motor base, and the noise measuring unit comprises a controller and a sound sensor. The simulation steering gear is used for replacing operators, influence of friction noise caused by that a steering wheel is rotated manually by the operators on steering noise measurement is eliminated totally, and the three-dimensional adjustable simulation steering gear can be suitable for noise detection of steering wheels of different angles and different diameters. Simultaneously, the steering motor in the simulation steering gear can control rotation speed of the steering wheel, and the device meets requirements of collection of steering noise under different rotation speeds and meets requirements of more strict noise detection.

Description

technical field [0001] The invention relates to a measuring device, in particular to an automobile steering noise measuring device and a measuring method for eliminating external influences. Background technique [0002] The power steering system of the steering wheel of a car is generally powered by hydraulic pressure or a motor, which will generate noise when steering. Steering noise contributes a lot to the noise inside the car, especially the idling noise. Generally, the noise test of the steering system of a car can be used on the test bench Detection, such as the Chinese patent No. ZL200720124999.6, the utility model patent of the automatic clamping tension low-noise transmission device named as the automobile power steering oil pump test bench discloses a test bench for the automobile power steering oil pump. Through the transmission support, the tensioning cylinder support, the hole of the guide rail mounting plate with the linear guide rail is engaged with the inner...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H17/00G01M17/007
Inventor 宋百忠王海林刘强杨安志赵福全
Owner HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST
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