Non-orthogonality measuring error correcting method for wheel loading bending moment detecting system

Abstract

A non-orthogonality measuring error correcting method for a wheel loading bending moment detecting system belongs to the technical field of electronic signal processing. In the prior art, a special high-precision auxiliary system is required to build a testing environment. Relevant operation is conducted on a loading bending moment detecting value (x', y'), a non-orthogonality error angle is determined, and then non-orthogonality errors in the loading bending moment detecting value (x', y') are determined through a correcting matrix so as to obtain a corrected loading bending moment detecting value, namely a corrected value (x, y). The corrected value is used as feedback quantity loaded and controlled by a wheel rotating bending fatigue testing machine to control bending moment loading. By means of the method, the special high-precision auxiliary system is not required to build the testing environment, the non-orthogonality measuring errors can be removed completely in theory, and the method has equal correcting precision as that in the prior art.

Description

technical field [0001] The invention relates to a non-orthogonal measurement error correction method of a wheel load bending moment detection system, which uses a wheel rotation bending fatigue tester to conduct a bending fatigue test on a wheel, and adopts the method of the invention to improve the accuracy of the wheel load bending moment, which belongs to electronic signal processing technology field. Background technique [0002] The wheel rotation bending fatigue testing machine is a kind of test equipment that provides dynamic bending moment for the wheel and simulates the dynamic load on the wheel when the car is running. The test method is as follows: two bending moment detection sensors are installed on the loading arm to form a normal Delivery inspection department. The rotation of the bending moment loading motor drives the rotation of the eccentric mass block to provide excitation for the test wheel, and the loading bending moment is provided for the test wheel ...

AI Technical Summary

Problems solved by technology

The problems existing in the above two existing technologies are firstly that a special high-precision auxiliary system needs to be used to establish a test environment and provide theoretical values ​​for non-orthogonal error correction; The higher the level, the more difficult and costly it is to establish a test environment

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