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Automobile steering handiness test driving track marking method

A technology of driving trajectory and portability, which is applied in the field of determining the key points of the driving trajectory in the test of automobile steering portability, can solve the problems of complex structure of the device, no accurate solution for key points, high cost, etc., and achieve universal equipment and methods Simple, high-precision effects

Active Publication Date: 2019-01-15
SHANDONG UNIV OF TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to find this product on the market at present, and the device has a complex structure and high cost. The main disadvantage is that there is no accurate solution for determining the key point of the widest point.

Method used

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  • Automobile steering handiness test driving track marking method

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Embodiment Construction

[0011] Attached below figure 1 The present invention will be further explained. Before the test, the minimum turning radius of the front outer wheel of the car is known R min =5 m, the method is as follows:

[0012] (1) According to the minimum turning radius of the front outer wheel of the car R min , MO = NO =3.3 R min =16.5m; use a tape measure with a minimum graduation of millimeters, and straighten the tape measure, M The point is the zero point of the scale, O The point is the 16.5 m point on the tape measure, N The point is 33m on the ruler;

[0013] (2) Use a tape measure to determine the key point at the widest point A , OA =1.65 R min =1.65× ×5≈11.667 m, OA + AN =1.65 R min +3.3 R min =1.65× ×5 + 3.3×5× ≈ 20.324 m, fix the zero point of the tape measure at the center point O , Place the tape measure at 20.324 m N Point, and straighten the tape measure as far as possible at the 11.667 m point, OAN Form a triangle, the 11.667 m point on the tape measure is the...

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Abstract

The invention provides an automobile steering handiness test driving track marking method. The method is characterized in that according to the minimum turning radius of an automobile front outer wheel, the key point of the driving track can be determined only by adopting a tape measure, the distance from the key point to the center point, according to the distance from the key point to the vertex, the distance from the center point and the vertex, a triangle is formed by utilizing the flexibility of the tape measure, and the key point is determined. The method is simple, the required instruments and equipment are common and are high in stability, and the precision of the determined key point is also high.

Description

Technical field [0001] The invention relates to a test method for the steering portability of an automobile, in particular to a method for determining the key points of the driving track in the steering portability test of the automobile. Background technique [0002] According to the Chinese national standard GB / T 6323-2014 automobile handling stability test method, when testing the steering lightness of the automobile, it should be based on the minimum turning radius of the front outer wheel of the automobile R min Determining the trajectory of the double-twisted line of the car is currently done by first determining a limited number of points on the trajectory in the test site, and connecting the key points according to the theoretical shape of the trajectory to approximate the driving trajectory. The standard requires that there be sixteen stakes at the widest part of the trajectory, on both sides of the apex and midpoint. The car drives on the trajectory and passes between th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25H7/04
CPCB25H7/04G01M17/06B60W30/10B60W2710/20B62D15/021
Inventor 苗立东张剑罡徐希翼徐国辉吴晓辉章曾李波李迪葛文庆刚宪约焦学健徐家川谭草
Owner SHANDONG UNIV OF TECH