Motor train unit outer door switch state stability testing method

Abstract

Provided is a motor train unit outer door switch state stability testing method, belonging to the technical field of high-speed motor train unit electrical debugging. The method has hand-operated and automatic modes, the automatic mode is that after the door opening and closing frequency is set, a PLC controls a stepping motor to press a switch door and a door allowance button via a push rod and controls the opening and closing of the outer door according to the outer door opening and closing state fed back by an infrared sensor, and after the opening and closing frequency reaches the set value, and the operation stops automatically and the ending time and execution frequency of the experiment is stored. According to the method, the manual operation of opening and closing doors for 200 times in the prior art is replaced by automatic devices, so that the labor intensity of operators is greatly reduced; and moreover, the operators don't occupy the driver's cab for a long time, and the progress of other debugging processes in the driver's cab is not influenced. Meanwhile, the door opening and closing operation frequency is recorded by means of a program, record errors can be prevented, the final door opening and closing frequency can be correctly counted, and the testing quality can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of electrical debugging of high-speed EMUs, and in particular relates to a method for testing the state stability of an outer door switch of an EMU. Background technique [0002] The outer door stability test project is a key process for the whole train commissioning of high-speed EMUs. The project requires the operator to operate the door open button, door close button and door permission button of the driver's station to control the EMU to realize the opening and closing actions of a total of 58 outer doors of the whole train. It needs to be repeated 200 times. In addition, the outer door of the EMU is required to have no relevant electrical and mechanical failures after 200 consecutive openings and closings, and to run smoothly and have stable performance. [0003] At present, the test process is completed by manual operation, requiring the operator to press the door permission button, door opening butto...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that during the stability test of the outer door of the EMU, the operator occupies the driver's cab for a long time and affects the progress of other debugging procedures in the driver's cab. Inaccurate technical problem, the present invention provides a method for testing the stability of the external door switch state of the EMU

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