Servo actuator for automobile collision test and automobile collision simulation test device

Abstract

In an automobile crash simulation test device, reproducibility can be improved. A servo actuator for an automobile crash test, which drives a piston rod toward a carriage supported to move freely in the horizontal front-rear direction and capable of carrying a test piece. The servo actuator for an automobile crash test includes: The fluid cylinder is inserted with the piston rod; the accumulator is connected to the opposite side of the fluid cylinder to the carriage side, and accumulates the pressure of the working oil supplied to the fluid cylinder; the servo valve is installed on the slide of the fluid cylinder. The discharge port formed on the frame side; and the position adjustment mechanism, which abuts against the end of the piston rod on the side opposite to the carriage side, restricts the movement of the piston rod to the accumulator side, and can adjust the accumulator side of the piston rod The end of the moving area is adjusted.

Description

technical field [0001] The present invention relates to an automobile collision simulation test device which reproduces the acceleration generated in the passenger compartment during a collision without destroying the automobile, and reproduces the injury degree of the occupant caused by the secondary collision. Background technique [0002] Generally, in the crash test of automobiles, there is a real car crash test for evaluating physical quantities such as the amount of impact, the amount of remaining space in the passenger compartment, and the value of occupant injuries. The method of collision is to destroy the test, which requires a high cost. Therefore, by attaching a body-in-white, dummy body, etc. equipped with a dummy, an airbag, etc. to a trolley, and giving the trolley approximately the same acceleration as when the real vehicle collides, the impact on the test piece can be reproduced in a non-destructive manner. The degree of impact and the evaluation of occupan...

AI Technical Summary

Problems solved by technology

[0002] Generally, in the crash test of automobiles, there is a real car crash test for evaluating physical quantities such as the amount of impact, the amount of remaining space in the passenger compartment, and the value of occupant injuries. The method of collision is a destructive test, which requires a high cost

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