A design method of a driving model for vehicle collision simulation analysis
A technology for simulation analysis and vehicle collision, applied in computing, special data processing applications, instruments, etc., can solve problems such as inability to effectively reflect the characteristics of real vehicle collision experiments, inaccurate sensor layout, and decreased accuracy of driving models, and achieve high precision Effects of increasing damage level, increasing design accuracy, and improving stability
Active Publication Date: 2019-05-28
SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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[0007]
The purpose of the present invention is to provide a driving model design method for vehicle collision simulation analysis, to solve the problem that the accuracy of the driving model decreases due to factors such as inaccurate sensor layout, small deformation of the position, body shaking, torsion, etc., so that it cannot effectively reflect the reality Problems with the Characteristics of Vehicle Crash Tests
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[0060] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the invention, not to limit the invention.
[0061] In order to solve the problem that the accuracy of the driving model decreases due to factors such as inaccurate acceleration sensor layout, small deformation of the position, body shaking, torsion and other factors in the existing crash simulation analysis, which cannot effectively reflect the characteristics of the actual vehicle crash test. The invention provides a high-precision driving model design method for vehicle collision simulation analysis. The method is based on the time history curve obtained through high-speed camera video tracking in real vehicle collision experiments, and its high-precision ...
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The invention relates to a design method of a driving model for vehicle collision simulation analysis, which comprises the following steps of positioning the vehicle body mark points and the auxiliarymark points and collecting the position information, and tracking and acquiring a time history curve of the vehicle body mark points in a collision process; screening the collected vehicle body markpoints and auxiliary mark points by adopting a quasi-static screening method to obtain vehicle body feature mark points and auxiliary feature mark points; performing dynamic error elimination on the time history curve of the vehicle body feature mark points; constructing a conversion relation of a bilateral local coordinate system through auxiliary feature mark points, carrying out bilateral datafusion, constructing a conversion relation of a bilateral local coordinate system and a global coordinate system through vehicle body feature mark points, carrying out global data fusion, and generating a driving model. According to the driving model designed by the method, the kinematic characteristics of the vehicle in the collision process can be more stably and accurately simulated, and the damage degree of vehicle passengers in the collision process can be efficiently and accurately simulated.
Description
technical field [0001] The invention relates to a method in the technical field of automobile computer aided design, in particular to a method for designing a driving model for vehicle collision simulation analysis. Background technique [0002] With the rapid development of the automobile industry, the number of automobiles has increased rapidly, and various traffic accidents have also increased rapidly, which affects the safety of people's lives and property. Automobile safety has gradually become one of the most important performance indicators for evaluating automobiles, especially the vehicle occupant collision safety protection technology has become the core competitive technology of products in the domestic and foreign automobile markets and the market-standard entry technology. At the same time, as people's knowledge of automobile safety continues to deepen, the market's requirements for vehicle collision safety have become increasingly stringent. However, at presen...
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Login to View More IPC IPC(8): G06F17/50
CPCY02T10/40
Inventor 董闽沈尚晓羽李楚照管友良
Owner SAIC VOLKSWAGEN AUTOMOTIVE CO LTD