Test and evaluation method for abnormal sound performance of automobile

An evaluation method and abnormal sound technology, which are applied in vehicle testing, machine/structural component testing, measuring devices, etc., can solve the problem of inability to quickly, efficiently and accurately evaluate the abnormal sound performance of automobiles, and achieve a simple and economical method. Testing and evaluating methods, low-input effects

Inactive Publication Date: 2018-09-07
BRILLIANCE AUTO
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Problems solved by technology

[0004] The purpose of the present invention is to provide a noise testing and evaluation method for abnormal noise performance of automobiles, to solve the problem of being unable to quickly, efficiently and a

Method used

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Embodiment Construction

[0013] A method for testing and evaluating the abnormal sound performance of automobiles, characterized in that it comprises the following steps:

[0014] 1) Arrange the test device in the car, and arrange the four microphones at the right ear of the driver, the right ear of the co-driver, the right ear of the rear passenger on the left side, and the position of the passenger on the right side of the rear row; the arrangement of the four microphones in the car refers to GB / T 18697-2002 Acoustic Vehicle Interior Noise Measurement Method, where the positions of the two front row microphones refer to the arrangement method of the driver microphone specified in GB / T 18697-2002, and the positions of the two rear row microphones refer to GB / T 18697-2002 Arrangement of microphones for rear passengers specified in T 18697-2002.

[0015] 2) Drive the vehicle under the test working conditions, collect and record the noise data under each working condition through the microphone;

[001...

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Abstract

The invention relates to a test and evaluation method for an abnormal sound performance of an automobile. The method is characterized by comprising the following steps that 1) a test is arranged in the vehicle; 3) the automobile is driven in test conditions, a sensor collects and records noise data in the different conditions; and 3) the collected noise data is analyzed in an ISO532 B method, a loudness graph is drafted, and loudness values are read. Via the method, objective test data of the abnormal sound performance can be obtained directly and rapidly, whether the automobile has a problemof abnormal sound is determined rapidly and accurately, and sound pressure level and loudness of the abnormal sound in a test result needs to be analyzed. The method is simple, efficient and low-cost,expensive testers and tools are not needed, the method is not limited by automobile models, and the simple, practical and economic test and evaluation method is provided for development and optimization in the field of abnormal sound performance of the automobile.

Description

technical field [0001] The invention relates to the field of testing and evaluating the abnormal sound performance of automobiles, in particular to a method for testing and evaluating the abnormal noise performance of automobiles. Background technique [0002] With the popularization of automobiles, consumers have higher and higher requirements on the performance of abnormal noise of automobiles. When the car is driving on a bumpy road, the unevenness of the road stimulates the chassis of the car, causing abnormal noises from the chassis or interior parts of the car, which affects the comfort of the car. For a long time, the identification of abnormal noise has relied on subjective evaluation, and there is no objective standard to define whether abnormal noise is good or bad. How to correctly test and evaluate the abnormal sound performance has always been a difficult problem in the early and late stages of abnormal sound performance development. How to test and evaluate t...

Claims

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Application Information

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IPC IPC(8): G01M17/007G01H17/00
CPCG01H17/00G01M17/007
Inventor 李静波王晖吴国明王珂
Owner BRILLIANCE AUTO
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