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Modeling method of complex road

A modeling method and road model technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of poor authenticity and versatility of road modeling, and achieve the effect of avoiding coordinate calculation work and simple calculation

Active Publication Date: 2015-04-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problem of simple road modeling, poor authenticity and poor versatility in the prior art, and provide a modeling method for complex roads

Method used

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  • Modeling method of complex road

Examples

Experimental program
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Effect test

Embodiment 1

[0186] Generating Complex Road Horizontal Shapes

[0187] In order to verify the effectiveness of the complex road modeling method described in the present invention in generating road horizontal shapes, this embodiment specially designs a group of road horizontal shapes and connects them to form a complex road.

[0188] refer to Figure 5 to Figure 9 , Figure 5 Shown is a straight road with a length of 600 meters in the horizontal direction, Image 6 Shown is a circular curve road with a radius of 1000 meters and a 45-degree left turn in the horizontal direction. Figure 7 It is a 100-meter-long left-turn roundabout road a in the horizontal direction generated according to the curvature change from a straight road to a circular road. Figure 8 It is a 100-meter-long left-turn horizontal roundabout road b generated according to the curvature change from a circular curve road to a straight road. These roads are used as a basic road model element in the horizontal direction...

Embodiment 2

[0190] Generate vertical roads

[0191] In order to verify the effectiveness of the complex road modeling method described in the present invention in generating road vertical shapes, this embodiment specially designs a group of road vertical shapes and connects them to form a complex road.

[0192] Figure 12 Shown is a flat road in the vertical direction 300 meters long, Figure 13 Shown is a vertical uphill road with a gradient of 1% about 200 meters long, Figure 14 It is a concave vertical curve road with a length of 100 meters in the vertical direction generated according to the slope change from the flat road to the uphill road. Figure 15 It is a convex vertical curve road with a length of 100 meters in the vertical direction generated according to the slope change from the uphill road to the flat road. These roads can be used as a basic road model component in the vertical direction in the road library, and can be reused many times when needed. Figure 16 What is ...

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Abstract

The invention discloses a modeling method of a complex road. The modeling method comprises the following steps of: 1, defining a basic road model element base, to be specific, (1), determining attributes of roads; (2), determining geometries of the roads, wherein the geometries of the roads comprise a linear road, a circular curve road, a clothoid road, a flat road, slopes including an upward slope and a downward slope, vertical curve roads including a convex curve road and a concave curve road according to the horizontal direction and the vertical direction; (3), setting geometry parameters of the roads, wherein in a process of actually designing the roads, multiple factors are considered, road basic parameters corresponding to different designed velocities are generally different, and design parameters of all basic road models in the modeling method all refer to road rout design specifications 2006 in China; (4), determining the clothoid road; (6), defining grades of unevenness of the roads; 2, establishing the basic road model element base; 3, designing a road connecting method; and 4, extracting a basic rod element to generate the complex road.

Description

technical field [0001] The invention relates to a modeling method, more precisely, the invention relates to a modeling method of complex roads used for vehicle dynamics simulation calculation. Background technique [0002] In the past few years, China's auto industry has achieved tremendous development. Due to the increasingly fierce competition in the automobile market and the continuous increase in the number of automobiles, automobile companies must shorten the vehicle research and development cycle, reduce research and development costs, and complete more research and development work with the help of computers; The requirements for performance and safety are constantly improving, and the research on intelligent driving and active safety control of automobiles has gradually become a hot research direction, and the actual vehicle experiments in this area are often dangerous (such as vehicle tire blowout experiments), or even not at all. Real vehicle experiments cannot be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 陈虹武志杰郭洪艳王菲王强于海洋
Owner JILIN UNIV