Transverse friction force calibration device and calibration method

Abstract

The invention provides a transverse friction force calibration device and method. The device is characterized in that a drawing device provides the drawing force for two testing wheels through two drawing force arms, the two testing ends of a testing system force sensor are connected with the corresponding positions of two drawing cables, the two testing ends of a reference force sensor are connected with two friction testing plates, the output end of the reference force sensor is connected with the input end of a co-excitation multi-source data acquisition machine, and the output end of the co-excitation multi-source data acquisition machine is connected with a friction force calibration software module; the co-excitation multi-source data acquisition machine is used for acquiring data from the reference force sensor and the testing system force sensor simultaneously, and the reference data sequence and the to-be-calibrated data sequence are obtained respectively; and the friction force calibration software module is used for calibrating the to-be-calibrated data sequence by utilizing the reference data sequence so as to achieve the technical effect that the transverse friction force testing result of the testing system is calibrated.

Description

technical field [0001] The invention relates to the technical field of friction force measurement, in particular to a lateral friction force calibration device and method. Background technique [0002] Anti-slip pavement is an important measure to ensure road traffic safety. Research data from the National Traffic Safety Board (NTSB) and the Federal Highway Administration (FHWA) show that about 13.5% of fatal traffic accidents occur on slippery roads, and among all traffic accidents, traffic accidents caused by road friction are as high as 25%. In recent years, my country's road construction has achieved leapfrog development. The proportion of expressways and national and provincial trunk roads in the entire national road network has continued to increase, and the average speed of roads has been greatly improved. At the same time, the number of traffic accidents is also increasing, especially in rainy and snowy weather conditions, the traffic accidents caused by insufficie...

AI Technical Summary

Problems solved by technology

[0005] For a long time, due to the lack of special friction test boards, the transportation industry has not established a measurement standard for the verification device of the double-wheel lateral friction coefficient test system, and the measurement performance of this type of equipment cannot be scientifically verified.

Some manufacturers with weak technical strength are eager to enter the market competition, but the supporting verification equipment and measurement methods have not followed up in time

As a result, the two-wheel friction coefficient measurement system in use is mixed, and the detection results of different types of detection equipment on the same road surface have large deviations, and the measurement values ​​cannot be effectively unified

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