Traction and brake performance integrated test system

Abstract

A traction and brake performance integrated test system includes a data acquisition device and a data processing terminal, and also includes a sensor group. The data acquisition device comprises a sensor data acquisition device for acquiring sensor group data and a thermocouple data acquisition device for acquiring thermocouple data. The data processing terminal includes a data interface card that communicates with the sensor data acquisition device for acquiring feedback data information of the sensor group and receiving a synchronization command signal for controlling the operation of the sensor group; a vehicle signal analysis card that is connected with a train network bus for obtaining a train command signal; and a main controller that obtains data information from the data interface card and the vehicle signal analysis card, and calculates test indicators. The invention provides the integrated hardware and software test platform which does not rely on built-in sensors of a traction system and a brake system, has third party data acquisition ability, realizes accurate, objective and synchronous measurement, and acquires data in strict accordance with the standard test method and calculation method.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle testing, and relates to a portable rail vehicle traction braking performance comprehensive testing system. Background technique [0002] Rail vehicles need to pass a series of performance tests before delivery to ensure that the indicators of the train can meet the design requirements; among them, the traction braking performance test includes the start and acceleration ability test, speed regulation ability test, brake Dynamic performance test and train running performance test under various special working conditions are the most important and complicated test items in the pre-delivery test items of the whole vehicle, which are directly related to the train's running capacity and operation safety. [0003] At present, there are two main ways to measure the traction braking performance of rail vehicles: [0004] The first way is to use the sensor data or operating parameters inside the trac...

AI Technical Summary

Problems solved by technology

[0004] The first way is to use the sensor data or operating parameters inside the traction system or braking system to conduct tests by the supplier of the traction system and braking system after the vehicle debugging is completed. This method has the following disadvantages: on the one hand, traction, The sensing data of the braking system itself will be combined with its own parameters through a series of calculations and processing, and the accuracy and objectivity of the data cannot be guaranteed; in addition, because the suppliers of the traction system and braking system of the vehicle may be different, the traction The system supplier and the braking system supplier can only measure the parameters related to the traction system or the braking system separately, but cannot collect the traction and braking performance parameters synchronously, so it is impossible to accurately measure the relationship between the traction system and the braking system. Coordination performance

[0005] The second method is to use general-purpose test instruments such as data recorders, power analyzers, power quality analyzers, and oscilloscopes to form an acquisition system for traction braking performance tests. This method can ensure that the data comes from external sensors or testing equipment of the system under test. , but due to the large number of equipment, each parameter is measured separately and the sampling rate is different, the data synchronization cannot be achieved well, it is not convenient for the synchronous analysis of the data of each system, and there is a lack of special data acquisition and post-processing combined with special measurement methods and calculation methods Software, each acquisition instrument needs power supply, wiring, etc., the acquisition system is huge, expensive, and poor in portability

[0006] No matter which of the above methods is adopted, the comprehensive performance test of the traction system and the braking system of the rail vehicle cannot be carried out. The data obtained by independent instruments is artificially integrated and analyzed, and then the performance evaluation is made; moreover, none of the above methods can realize the synchronous acquisition and analysis of the traction signal and the braking signal, so that the test results can only reflect the trend of the system under test. performance, affecting test accuracy

At present, there is no portable comprehensive test system for the performance test of the traction brake system of rail vehicles in the market

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