Trolley test method for simulating offset collision

Abstract

The invention discloses a trolley test method for simulating offset collision. The trolley test method for simulating offset collision comprises the steps of: (1), obtaining the test waveform and thedummy damage value of a whole vehicle offset collision test, establishing a whole vehicle simulation offset collision model, then, inputting the test waveform of whole vehicle offset collision, so that the dummy damage value of a simulation model is obtained, and adjusting the white body angle in the whole vehicle simulation offset collision model till the simulation precision is minus 5-5%; (2),adjusting the white body angle of a trolley according to the white body angle obtained by the whole vehicle simulation offset collision model, inputting the test waveform of the whole vehicle offset collision into a trolley control system, and performing iteration of the test waveform till the iteration precision of the trolley waveform is minus 3-3%; and (3), performing constraint system test matching verification of the trolley, obtaining the trolley simulation precision through a formula, and, if the trolley simulation precision is minus 5-5%, performing subsequent offset constraint systemoptimization verification through the trolley. The trolley test method for simulating offset collision disclosed by the invention is simple to operate, high in practicability and reliability, and adjustable in collision angle.

Description

technical field [0001] The invention relates to an automobile collision test, in particular to a test method for a trolley for simulating an offset collision. Background technique [0002] In the field of automobile crash safety research, the matching parameter adjustment of the restraint system of the vehicle is usually verified and adjusted by the trolley system. Because matching the parameters of the vehicle restraint system through the vehicle test method will result in a longer test period and higher costs. The cost of the test vehicle during the test period is very high, far exceeding the price after the market, and the verification of the consistency problem is also difficult. There are certain difficulties. [0003] However, most of the current trolley systems can only simulate the frontal collision of the whole vehicle. If it is necessary to simulate the offset collision of the whole vehicle, the trolley system needs to be greatly upgraded. The upgrade process is e...

AI Technical Summary

Problems solved by technology

It directly compares and analyzes the simulation data analysis results of the trolley simulation crash model with the simulation data analysis results of the mule car simulation crash model, and

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