Equivalent correction method for deviation of control stability tester from center of mass

Abstract

According to the equivalent correction method for deviation of the handling stability testers from the mass center, handling stability testers 0#, 1#, 2#... n# are arranged at the mass center of a vehicle, A1 (X1, Z1), A2 (X2, Z2),..., An (Xn, Zn) respectively, then a handling stability test is conducted on the whole vehicle, any time point in the test process is selected, data F(0, 0), F(X1, Z1), F(X2, Z2),..., F(Xn, Zn) collected by the handling stability testers at the time point are obtained, Then polynomial fitting is carried out on the data to obtain a correction function, and the data collected by the tester can be equivalently converted into data at the center of mass through the correction function. The design not only improves the accuracy of a control stability test result, but also is simple and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of vehicle measurement, and in particular relates to an equivalent correction method for the deviation of a handling stability tester from the center of mass. Background technique [0002] Handling stability is one of the important performances of automobiles. In the process of automobile development, objective testing of handling stability is essential. GB / T6323-2014 "Automobile Handling Stability Test Method" stipulates that the vehicle handling stability tester should be as close as possible to the center of mass of the vehicle. However, in actual operation, due to the inaccessibility of the center of mass of the vehicle or other reasons, the tester often cannot be placed exactly at the center of mass. However, when the installation position of the tester deviates from the center of mass, it will inevitably affect the accuracy of the test results, and there is no good solution for how to correct the data...

AI Technical Summary

Problems solved by technology

However, in actual operation, due to the inaccessibility of the center of mass of the vehicle or other reasons, the tester is often not placed exactly at the center of mass

However, when the installation position of the tester deviates from the center of mass, it will inevitably affect the accuracy of the test results. How to correct the data, there is no good solution yet

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