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Logic control method and device of electric locomotive

A technology of electric locomotive and logic control, which is applied in the direction of electric program control, program control in sequence/logic controller, etc., and can solve the problem of low reliability

Inactive Publication Date: 2011-03-23
DATONG ELECTRIC LOCOMOTIVE OF NCR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a logic control method and device for an electric locomotive to solve the defect of low reliability of the existing locomotive control circuit system

Method used

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  • Logic control method and device of electric locomotive
  • Logic control method and device of electric locomotive
  • Logic control method and device of electric locomotive

Examples

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Embodiment 1

[0015] Such as figure 1 As shown, it is a flow chart of a logic control method for an electric locomotive according to an embodiment of the present invention. The method includes:

[0016] Step 101, receiving an instruction signal input by an electric locomotive.

[0017] Optionally, the above-mentioned instruction signal may be an instruction signal transmitted from the above-mentioned microcomputer control system of the electric locomotive. The above-mentioned command signal may be a 110V command signal transmitted from the above-mentioned electric locomotive driver controller / key switch group. The above command signal may be a 110V command signal transmitted from one or more of the main circuit breaker, isolating switch, two-position transfer switch, and auxiliary contact of the contactor of the electric locomotive.

[0018] Step 102, using the logic control host (where the logic control host is not necessarily a computer, but may be a logic control device such as a PC or...

Embodiment 2

[0024] Such as figure 2 As shown, it is a schematic structural diagram of a logic control device for an electric locomotive according to an embodiment of the present invention. The above-mentioned device 20 includes: an input unit 201 for receiving command signals input by the electric locomotive; The logic control host is not necessarily a computer, but can be a logic control device such as a PC or a microprocessor) to convert the above-mentioned command signal into a control command for the external load; the output unit 203 is used to output the above-mentioned control command to the above-mentioned external load.

[0025] Optionally, the command signal received by the input unit 201 may be the command signal transmitted from the microcomputer control system of the electric locomotive. The command signal received by the input unit 201 may be a 110V command signal transmitted from the electric locomotive driver controller / key switch group. The command signal received by th...

Embodiment 3

[0030] The above-mentioned electric locomotive logic control device can be an electric locomotive logic control unit (LCU), which is equivalent to a common programmable logic controller (PLC). function), output unit (realize the function of the above output unit) and peripheral connector (realize the function of the above input unit), this device can be installed in a suitable position inside the locomotive, and a large number of external connections can be reduced by using this device And the use of relays, and the input and output status of each link of the locomotive control circuit can be observed at any time through the status light display unit, which brings great convenience to the safe operation and maintenance of the locomotive. The logic control unit of the electric locomotive is installed in an appropriate position in the locomotive equipment room, and the locomotive provides a DC 110V working power supply, and the input and output signals of the locomotive are excha...

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Abstract

The invention provides logic control method and device of an electric locomotive. The method comprises the following steps of: receiving an instruction signal inputted by the electric locomotive; converting the instruction signal into a control command on an external load by utilizing a logic control main machine; and outputting the control command to the external load. The device comprises an input unit, a control unit and an output unit, wherein the input unit is used for receiving the instruction signal inputted by the electric locomotive; the control unit is used for converting the instruction signal into the control command on the external load by utilizing the logic control main machine; and the output unit is used for outputting the control command to the external load. By adopting the technical scheme, the device has the advantages that by adopting the technical measures of receiving the instruction signal inputted by the electric locomotive, converting the instruction signal into the control command on the external load by utilizing the logic control main machine, and outputting the control command to the external load, the device achieves the technical effects of greatly simplifying a contact control circuit of the electric locomotive, reducing external wiring and improving the reliability of a system.

Description

technical field [0001] The invention relates to railway locomotives, in particular to a logic control method and device for electric locomotives. Background technique [0002] A complete control circuit system of an existing locomotive needs to be composed of a large number of intermediate relays, time relays and redundant wiring between a large number of relays. The intermediate relay and the time relay here are two types of relays, the time relay is a relay with a certain time delay, and the intermediate relay is a relay without a time delay. In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: the relay of the existing control circuit system has a contact control circuit, and the more components connected in series in one control circuit, the more reliable it is. It takes up more space and brings great inconvenience to the maintenance and repair personnel. In a certain event on a traditiona...

Claims

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Application Information

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IPC IPC(8): G05B19/04
Inventor 任广慧马喜柱
Owner DATONG ELECTRIC LOCOMOTIVE OF NCR
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