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Automobile engine compartment noise detection device

An engine compartment and noise detection technology, which is applied in engine testing, measuring devices, vehicle testing, etc., to achieve the effects of avoiding unstable noise detection data, stabilizing noise detection data, and saving site space

Pending Publication Date: 2019-01-08
FAW VOLKSWAGEN AUTOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of noise detecting device of automobile engine compartment, which solves the cumbersome problem of needing to readjust the position of the noise collector before each noise detection in the process of carrying out noise detection to the automobile engine compartment in the prior art, and improves Detection efficiency

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  • Automobile engine compartment noise detection device
  • Automobile engine compartment noise detection device
  • Automobile engine compartment noise detection device

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Embodiment Construction

[0030] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] see Figure 1 to Figure 3 , the automotive engine compartment noise detection device provided by the present embodiment comprises a lifting mechanism 1, a plurality of noise collectors 3, a fixed support 2 and a movable support 4, the lifting mechanism 1 is installed above the detection platform, and the fixed support 2 is controlled by t...

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Abstract

The invention discloses an automobile engine compartment noise detection device, relates to the technical field of NVH (Noise, Vibration and Harshness) test of automobiles, and solves the problem of tediousness of readjusting the position of a noise acquirer before each noise detection in a process of detecting noise of an automobile engine compartment in the prior art, so as to improve the detection efficiency. The automobile engine compartment noise detection device comprises a lifting mechanism, multiple noise acquirers, a fixed stand and a movable supporting piece; the lifting mechanism ismounted above a detection table; the fixed stand is controlled to rise up and drop down through the lifting mechanism; the multiple noise acquirers are distributed and mounted on the fixed stand; andone end of the movable supporting piece is hinged and fixed to a side surface wall body of the detection table, and the other end of the movable supporting piece is detachably connected with the fixed stand.

Description

technical field [0001] The invention relates to the technical field of NVH testing of automobiles, in particular to a noise detection device for an automobile engine compartment. Background technique [0002] In the development process of automobile vibration and noise performance, it is usually necessary to detect the noise level of the automobile engine compartment in order to take targeted improvement measures. The existing noise level detection method is to form a microphone array with multiple microphones, arrange them near the engine compartment of the car according to a specific distance and angle, and identify and analyze the noise through the data acquisition system. Since the microphone array needs to be fixed by a specific tripod bracket, it has been fixed by a temporary solution in the past. There are problems such as weak fixation, inconvenient position (distance, angle) adjustment, time-consuming operation, and detection errors, which affect the safety of equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02G01H17/00G01M17/007
CPCG01H17/00G01M15/02G01M17/007
Inventor 夏世东姚军乔雪冰白章韩玉龙
Owner FAW VOLKSWAGEN AUTOMOTIVE CO LTD
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