Test platform and test method of train reference value converter

Abstract

The invention discloses a test platform of a train reference value converter, which relates to the technical field of train test and comprises an upper computer and a test device. The upper computer is connected with a to-be-tested reference value converter through the test device; the upper computer is used for performing two-way communication with the test device; the test device is in two-way communication with the upper computer through the single-chip microcomputer module. The single-chip microcomputer module is also used for sending a control signal to the to-be-tested reference value converter through the integrated operational amplifier module and the Harting interface module according to the execution instruction. The single-chip microcomputer module is further used for sending test data to the upper computer according to the received original test data. The Harting interface module is used for receiving an output signal of the to-be-tested reference value converter so as to send original test data to the single-chip microcomputer module through the integrated operational amplifier module according to the output signal. The invention further provides a test method of the train reference value converter, the difficulty of testing the RVC can be effectively reduced, the efficiency of testing the RVC is improved, and the reliability of a test result is effectively improved.

Description

technical field [0001] The invention relates to the technical field of train testing, in particular to a test platform and a test method for a train reference value converter. Background technique [0002] The train reference value converter (Reference Value Converter, RVC) is the core component of the subway train traction system. During the traction and braking process of the train, the signal given by the driver controller through the angle converter and the control signal generated by the ATO mode are both current signals, while the traction control unit DCU and the brake control unit ECU receive pulse width adjustable The main function of the RVC module is to convert the current signal into a pulse width adjustable signal. If the RVC fails, the train will not be able to perform normal traction and braking. Therefore, the detection of the RVC operation status is very important for the normal operation of rail transit. [0003] In the existing detection method, in order...

AI Technical Summary

Problems solved by technology

The inventor finds in the process of implementing the present invention that there are at least the following problems in the prior art: due to the need for two-channel oscilloscope signal display when testing RVC, and the wiring is cumbersome, the test data is complicated, and more equipment resources are occupied. The requirements for the operators of the process are relatively high, which makes it difficult to test the RVC

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