A side column collision test method and its parameter extraction method

Abstract

The invention discloses a side pole impact sled test method. The method comprises the following steps that: step 1, a sample sled and a pole sled are coaxially arranged on a test track at intervals, the pole sled is located between a sled piston actuator and the sample sled, a test vehicle is installed on the sample sled, and a dummy is placed in the test vehicle, and an impact pole is vertically arranged to one side of the pole sled, wherein the one side of the pole sled is close to the sample sled; step 2, the pole sled is attached to the sled piston actuator, the pole sled and the sample sled are arranged at intervals, and the sled piston actuator is utilized to accelerate the pole sled; and step 3, the injury value of the dummy is obtained in an impact process. The invention further provides a parameter extraction method in the side pole impact sled test method. With the parameter extraction method adopted, test precision of a side pole impact sled test can be improved; a side pole impact sled test result can simulate a side pole impact real vehicle test in a high-precision mode; and therefore, test efficiency is improved, and a development period is shortened.

Description

technical field [0001] The present invention relates to the technical field of automobile collision test, and more specifically, the present invention relates to a side column collision test method of a trolley and a parameter extraction method thereof. Background technique [0002] The real vehicle crash test is the most direct and effective test and analysis method to verify the safety performance of automobiles. However, due to the wide variety of vehicle parts, if the real vehicle crash test is often used for product verification during the development stage, it will inevitably result in high development costs and long development cycles. Therefore, the platform crash technology has been developed, which mainly simulates the actual vehicle collision conditions by reproducing the inertial acceleration generated by the actual vehicle collision. At present, the vehicle crash test has become an important vehicle safety test and development method, which can effectively shorte...

AI Technical Summary

Problems solved by technology

[0002] The real vehicle crash test is the most direct and effective test and analysis method to verify the safety performance of automobiles. However, due to the wide variety of vehicle parts, if the real vehicle crash test is often used for product verification during the development stage, it will inevitably result in high development costs and long development cycles. Therefore, the platform crash technology has been developed, which mainly simulates the actual vehicle collision conditions by reproducing the inertial acceleration generated by the actual vehicle collision. Currently, the vehicle crash test has become an important vehicle safety test and development method, which can effectively shorten the development time. cycle, reducing development costs

[0003] At present, the test methods and means of the frontal collision test of the trolley are quite mature and widely used, but the side column collision test of the trolley is relatively complicated in the collision process and the control method is not mature, so it is rarely used in the industry

The main problem is that the conventional trolley test can only simulate the acceleration of the car body in a collision, but cannot reproduce the deformation of the car body

However, the current trolley test equipment does not have the function of simulating deformation, and certain technical means are needed to realize it.

With the improvement of automobile safety technology and the requirements of relevant standards and regulations, the demand for side column crash test is getting higher and higher, but the technical method is not mature

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