Experimental method for stone impact prevention performance of rubble road and whole vehicle

A technology for gravel roads and gravel, which is applied in the field of gravel roads and in the field of vehicle anti-stone impact performance experiments, can solve the problem of high stone impact strength in the chassis area, reduce maintenance costs, avoid road water accumulation, and ensure accuracy. Effect

Inactive Publication Date: 2022-03-11
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology

After the test, the rocking effect is different from that of the user. For example, the rocking strength of the lower part of the rear door and the rear end of the side wall is lower than the actual situation of the user. If it is necessary to ensure that the rocking strength of these areas is equivalent to that of the user, it will lead to the rocking strength of the chassis area. Much higher than the actual application scenario

Method used

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  • Experimental method for stone impact prevention performance of rubble road and whole vehicle
  • Experimental method for stone impact prevention performance of rubble road and whole vehicle
  • Experimental method for stone impact prevention performance of rubble road and whole vehicle

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] see figure 1 , the gravel road shown includes a gravel road section 1, a deceleration road section 2 and a clearing road section 3 connected in sequence, and the gravel road section 1 includes a first curve 11, a second curve 12, and a transition curve connected in sequence 13 and the straight road 14, the turning of the first curve 11 and the second curve 12 is opposite.

[0029] In order to ensure that the vehicle can pass through the first curve 11 and the second curve 12 smoothly, specifically, the first curve 11 is a right-hand curve with a turning radius of 25m; the second curve 12 is a left-hand curve, The turning radius is 25m; the turning radius of the transition curve 13 is 28m. see figure 2 , The sum of the lengths of the first curve 11, the second curve 12, and the transition curve 13 is 100m, and the width of the first curve 11, the second cur...

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Abstract

The invention discloses a rubble road and whole vehicle stone impact prevention performance experiment method, the rubble road comprises a rubble road section, a deceleration road section and a cleaning road section which are connected in sequence, the rubble road section comprises a first curve, a second curve, a transition curve and a straight road which are connected in sequence, and the first curve and the second curve are opposite in turning direction. A rubble layer with the thickness of 10 cm is laid on the rubble road section, and the rubble layer comprises stones with the particle size of 3-8 mm; the deceleration road section is not paved with a gravel layer and is used for vehicle deceleration; a plurality of cleaning grids are arranged on the cleaning road section at intervals and used for cleaning broken stones on the wheels. The method is closer to the actual situation when the stone impact resistance of the vehicle is evaluated, and the influence of stone impact on the appearance and performance of the vehicle is accurately predicted.

Description

technical field [0001] The invention relates to an automobile road test, in particular to a gravel road and an experimental method for anti-stone impact performance of a complete vehicle. Background technique [0002] In the current road test of the automotive industry, the gravel road is used to identify the risk of damage to the surface of the parts or the failure of the function of the parts due to stone impact on the whole vehicle. At present, the gravel roads of the main vehicle testing grounds in the domestic industry are generally straight roads and slightly curved roads. After the test, the rocking effect is different from that of the user. For example, the rocking strength of the lower part of the rear door and the rear end of the side wall is lower than the actual situation of the user. If it is necessary to ensure that the rocking strength of these areas is equivalent to that of the user, it will lead to the rocking strength of the chassis area. much higher than ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G01M7/08
CPCG01M17/0078
Inventor 何忠树王橙帆郭聪李英熊艳萍
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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