Automobile dynamic balance weighing error estimation method and device based on measurement error theory

Abstract

The invention discloses an automobile dynamic balance weighing error estimation method and device based on a measurement error theory. The invention relates to the technical field of automobile dynamic weighing, and solves the problem that the relationship between the weighing error of a single shaft and a shaft group and the total weight error of an automobile is not given in the prior art. The method comprises the steps of obtaining the single-shaft loads of all shafts of vehicles of different shaft types and a single-shaft load weighing error rate of a dynamic balance, calculating weighingerrors of the vehicles of different shaft types under determined loads in the full-load and no-load states according to a weighing error estimation formula, calculating relative weighing errors according to a relative weighing error formula, and finally, analyzing to obtain the relationship between the axle number of the vehicles with different axle types and the weighing errors, and the relationship between the axle number of the vehicles with different axle types and the relative weighing errors so as to determine the nominal errors of the vehicles with different axle types through the nominal error of the dynamic balance. Meanwhile, the nominal error requirement of the dynamic balance can be derived based on the weighing error accepted by the specific axle type of vehicles.

Description

technical field [0001] The invention relates to the technical field of automobile dynamic weighing, in particular to a method and device for predicting weighing errors of automobile dynamic scales based on measurement error theory. Background technique [0002] The demand for vehicle dynamic weighing technology promotes and drives the production, research and development and market cultivation of vehicle dynamic weighing instruments. The size of the weighing error of dynamic weighing apparatus is an important index to evaluate the weighing accuracy of automobile dynamic weighing apparatus. "Regulations for Verification of Automatic Weighing Instruments for Dynamic Road Vehicles" (JJG 907-2006, hereinafter referred to as the regulations) provides an evaluation method for the error of dynamic weighing instruments: (1) The single-axis error of the dynamic balance is equal to the weighing weight of the single axis and the single axis (2) The error of the vehicle shaft group of ...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a vehicle dynamic scale weighing error prediction method based on the measurement error theory to solve the problem that the existing error evaluation method does not provide the relationship between the weighing error of a single shaft and shaft group and the total weight error of the vehicle

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