Test bed for braking performance of automobile/train

Abstract

The invention discloses a test bed for the braking performance of an automobile / a train. The test bed is characterized in that a signal acquisition part of a sensor is composed of a left detection unit group and a right detection unit group which are formed by linearly arranging a plurality of detection units, and the left detection unit group and the right detection unit group are in symmetric distribution. A braking detection unit comprises a braking sand-adhering plate; the braking sand-adhering plates on the left detection unit group and the right detection unit group are independent, with a distance of 8 mm; each braking detection unit and each weighing detection unit work independently to respectively realize acquisition of braking data and weight data and are independently connected with a signal acquisition processing device; and the signal acquisition processing device is electrically connected with a data processing system. The automobile / train is subjected to multi-axial overall online detection, so that the braking time sequence of the vehicle, the dynamic braking power of the entire vehicle, the poor braking process, the coordinate time and the like of the entire vehicle can be detected in one braking process, therefore, the labor intensity of detection is alleviated, the detection efficiency is improved, and the braking performance of the vehicle can be reflected more truly.

Description

technical field [0001] The invention relates to the field of vehicle performance detection, in particular to the detection of brake performance of automobiles and trains. Background technique [0002] In recent years, automobiles and trains have become the main force of road freight transportation. They have developed from two-axis, three-axis, four-axis or even multi-axis in the early years, and have changed from light to heavy to meet the increasing proportion of long-distance logistics in the entire logistics. There is a growing need. Safe operation is the fundamental guarantee for freight vehicles to achieve operational goals, and braking performance is the basic guarantee for safe operation of vehicles. It is not only an important performance of vehicles, but also an important parameter that characterizes the technical status of vehicles. During the use of the vehicle, the technical condition inevitably declines gradually, which deteriorates the inherent braking perfor...

AI Technical Summary

Problems solved by technology

In addition, the road test method is also used, and the limitation of the road test inspection lies in the matching performance of the vehicle train brake and the site conditions, so it can only be used as an auxiliary detection method

Due to the restriction of the structure of the platform itself, the roller reaction brake test platform and the conventional flat brake test platform can only detect the braking sum and braking difference of the detected axle, and cannot detect all axles of the vehicle at the same time. The braking sequence of the vehicle, the dynamic braking force of the vehicle, the poor braking process, the coordination time, etc., so it is difficult to fully reflect the actual situation of the vehicle braking

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