Device and method for testing upward rotation angle variable quantity of steering column

Abstract

The invention relates to a device for testing the upward rotation angle variable quantity of a steering column. The device comprises a device body arranged between a steering column experiment mount table and the steering column, the device body comprises an angle variable quantity detection member connected to the steering column experiment mount table, a crank link mechanism connected with the angle variable quantity detection member on one end in a matching manner, and a steering column connecting member connected with the other end of the crank link mechanism on one end, and the other end of the steering column connecting member and the other end of the crank link mechanism are connected with the steering column in a matching manner. The device can measure the upward rotation angle variable quantity of the steering column during the human body module experiment process, and solves the problem that the angular velocity sensor is large in null shift, and is insensitive to relatively-small angle variable quantity, and the integral computation has a relatively-large error. The invention also relates to a method for testing the upward rotation angle variable quantity of a steering column, and the method provides support for automotive crash safety research, development and design.

Description

technical field [0001] The invention relates to an automobile steering mechanism, in particular to a device and a method for testing the amount of upward rotation angle variation of a steering column. Background technique [0002] At present, most of the cars produced have been installed with a collapsible steering column to reduce the degree of injury to the driver in a traffic accident involving a frontal collision. In the impact test of the steering column and the traffic accident of frontal collision, after the steering wheel is subjected to the impact force of the human chest, the steering column will rotate upwards with the lower installation point as the axis, so that the inclination angle of the steering column changes, thereby It is not conducive to steering column collapse and energy absorption. Therefore, the collapse performance of the collapsible steering column is not only related to the energy-absorbing space, shear block, injection molding, etc., but also re...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a device for testing the variation of the upward rotation angle of the steering column, which can measure the variation of the upward angle of the steering column during the experiment of the human body module, and solve the problem of the large zero drift of the angular velocity sensor, which is relatively small. The angle change is not sensitive, and there is a large error in the integral calculation

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