Objective quantification method of subjective evaluation of vibration of air brake light truck

A technology for subjective evaluation and trucking, which is applied to vehicle testing, measurement devices, manufacturing computing systems, etc., and can solve problems such as inconsistency between subjective and objective evaluations of vibration in the vehicle

Active Publication Date: 2019-11-05
NANJING AUTOMOBILE GROUP CORP +1
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Problems solved by technology

[0004] The purpose of the present invention is: aiming at the defects existing in the prior art, an objective quantification method for the subjective evaluation of idle vibration of air-braked light trucks is proposed, which solves the problems encountered in the research and development of air-braked light trucks. Inconsistent subjective and objective evaluation of vibration in the vehicle

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  • Objective quantification method of subjective evaluation of vibration of air brake light truck
  • Objective quantification method of subjective evaluation of vibration of air brake light truck
  • Objective quantification method of subjective evaluation of vibration of air brake light truck

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Embodiment Construction

[0036] This embodiment provides an objective quantification method for the subjective evaluation of the vibration of air-braked light trucks, including an acceleration sensor 1, such as figure 2 shown, including the following specific steps:

[0037] Step 1, park the whole vehicle (no load) of the air-braked light truck at an idle speed in an open flat place formed by hard materials such as concrete, asphalt or cement;

[0038] Step 2: Arrange the acceleration sensor 1 on the guide rail of the driver's seat, and the sticking position is the middle point of the guide rail in the X direction near the side of the vehicle body (see the attached manual for the vehicle coordinate system). figure 1 , where the X coordinate is from the front of the car to the rear of the car, and the origin is at the front of the car; the Y coordinate is the direction from the driver to the passenger, and the origin is placed at the midpoint of the left and right; the Z coordinate is from bottom to t...

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Abstract

The invention provides an objective quantification method of subjective evaluation of idle vibration of an air brake light truck. The objective quantification method of the subjective evaluation of idle vibration of the air brake light truck includes: collecting a vibration signal of a sample vehicle; processing the subjective and objective data; and establishing a correlation model by using the Spearman correlation coefficient through the correlation analysis between subjective evaluation results and the objective data, so as to obtain an objective quantification mathematical model of the subjective evaluation of idle vibration of the air brake light truck. Through the method, the subjective evaluation situation of the idle vibration of the air brake light truck is obtained, which is a comprehensive and effective test and evaluation method. The test method applied by the objective quantification method of the subjective evaluation of idle vibration of the air brake light truck is simple, clear in thinking, and has strong versatility, which can be adapted to test and evaluate the idle vibration performance of various vehicle models.

Description

technical field [0001] The invention relates to a quantification method, in particular to an objective quantification method for subjective evaluation of idling vibration of an air-braked light-duty truck, and belongs to the technical field of light-duty trucks. Background technique [0002] The automobile industry is a pillar industry in my country, of which light-duty trucks occupy a considerable proportion. The development of light trucks also plays a very important role in the automobile industry, and it plays an irreplaceable role in basic industries such as energy and transportation. At present, the braking system of light-duty trucks generally uses the air brake method. Compared with the hydraulic brake, the air brake system has a fast braking response and a strong braking force, but the structure is complex and requires air pumps, dryers, air storage tanks, and high pressure brakes. Controllers, relay valves and other components are more prone to failure. Due to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G06Q10/06G06Q50/04
CPCG01M17/007G06Q10/0639G06Q50/04Y02P90/30
Inventor 陈萍席桂东徐伟牟正明沈磊陈锦东孙攀解进明程鹏飞王继业
Owner NANJING AUTOMOBILE GROUP CORP
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