RU104907U1 - DIAGNOSTIC AND RESTORATION SYSTEM OF LOCOMOTIVE - Google Patents

Abstract

 A system for diagnosing electric circuits of a locomotive, including a control panel, diagnostic and switching units associated with electric circuits of a locomotive and an information display means, characterized in that the diagnostic system is a microprocessor system that is constantly connected to the control circuits of the locomotive and has an information exchange channel CAN-interface with external on-board control and safety systems, which uses graphic wreath product automatic driving system with a keyboard automatic driving system used as a remote control.

Description

The utility model relates to railway transport and is used for automated driving of trains, representing an integral part of the auto-driving system. The system monitors, diagnoses and restores locomotive circuits.

Close to the claimed device is, existing to date, an analog diagnostic system developed in the 70s. In the known system, the principle of operation consists in dividing the circuits of an electric locomotive, using a manual switch, into short sections and identifying breakage and short circuit in these sections by a combination of illuminating warning lamps. The disadvantage of this diagnostic system is that the control lamps are located in a cabinet in the engine room of an electric locomotive, so the diagnosis process is time-consuming, inconvenient and time-consuming. The proposed modern microprocessor system (the claimed device) allows the driver to receive information about the condition of the locomotive directly in the driver's cab on the display of the auto-inflation system. In this case, information will be automatically displayed immediately after a malfunction is detected.

The closest device available today that allows you to control and record the parameters of the electric locomotive is a motion parameters recorder - RPDA (patent No. 2238869 dated October 27, 2004). RPDA consists of ::

- a registration unit that receives and processes information;

- track and speed sensor;

- switching unit;

- indicator;

- control panel.

The registrar has an order of magnitude smaller number of input signals and allows to determine the status of certain parameters using the codes displayed on a primitive indicator.

These shortcomings are completely eliminated in the proposed system for diagnosing and restoring the operability of a locomotive. The diagnostic system uses a full-time graphic display of the auto-drive system and a keyboard. The system is constantly connected to the locomotive circuits and has built-in software that allows you to process the received signals and generate text and voice information messages in the event of an emergency. In addition, the system captures all changes that occur (in the locomotive circuits) in the internal memory. The novelty of the solution lies in the principle of displaying information on the screen. The electrical circuit of control circuits is displayed on the screen with a detailed display of key sections of the circuit. 15 screens with the display of electrical circuits allow you to control 90% of the nodes and devices of the locomotive. Based on the original algorithms, the diagnostic system analyzes the situation in the control circuits and generates an information message, which is displayed to the driver and is simultaneously stored in the memory.

The proposed system for diagnosing and restoring the locomotive’s performance is built on the basis of a microprocessor control system, the technical result when using it is that while the driver is operating on a locomotive equipped with this diagnostic system, it is possible, without leaving the cab, to obtain reliable information in real time about the state of control circuits and electric locomotive devices. In the event of an emergency, the system will automatically generate a message indicating the wire number or the name of the failed node. An example of receiving a message from a diagnostic system is shown in Figure 1.

The diagnostic system consists of several BDK units (diagnostic and switching unit) installed in close proximity to the central terminal strip. The appearance of the BDK block is shown in Figure 2. The circuit of the BDK block is shown in Figure 3. The functional diagram of the system is shown in Figure 4.

To check the condition of the locomotive in the non-automatic mode, it is necessary to enter the auto-driving system menu and display the circuit of interest, see Figure 5. In the diagram, red dots indicate wires with no voltage, and green dots indicate wires with potential. Thus, the system analyzes a large number of signals from the control price of the locomotive (more than 210 wires of the ChS7 electric locomotive are interrogated by the system units), according to the results of which the health of the low-voltage equipment of the electric locomotive is evaluated. If errors are found, the driver will receive a message about the malfunction and instructions for further actions. If necessary, the system is able to eliminate a number of malfunctions by collecting emergency circuits. As a result, the system monitors, diagnoses and restores the locomotive circuits at all stages of its operation:

Pre-trip preparation of an electric locomotive:

- comprehensive automatic testing of control circuits, power circuit and brakes of a locomotive during acceptance in a depot;

Constant automatic monitoring of the condition of the electric locomotive along the route:

- text and voice messages about failures and their localization;

- the ability to automatically collect emergency circuits;

- fixing failures for an objective assessment of the situation when analyzing the actions of the locomotive team in the depot;

Maintenance of an electric locomotive for maintenance and current repairs at the depot:

- a detailed graphical representation of the status of the control circuits of the locomotive on the screen allows you to increase the efficiency and quality of service and repair.

- fixation and identification of malfunctions of a periodic nature that do not appear upon examination at the depot.

The use of the subsystem in the locomotive repair depot will allow to obtain the economic effect of:

- facilitating the work of drivers and repair personnel;

- increase the availability factor of an electric locomotive;

- increase the throughput of roads by reducing the downtime of an electric locomotive on the stage;

- improving the quality of service of rolling stock for repairs in the depot by maintaining an archive of failures during operation;

- reduce the number of cases of calls to the auxiliary locomotive;

- reduction of time for repair personnel to find a malfunction;

- reducing maintenance time during routine maintenance.

Economic effect in the operational depot:

- improving traffic safety due to the speed of troubleshooting;

- troubleshooting in the way, regardless of the qualifications of the drivers;

- Automation of checking the electric locomotive control circuits along the route and operational testing of the locomotive before the trip;

- reduction in the number of train delays due to the long identification of a malfunction;

- reducing the likelihood of requiring an auxiliary locomotive;

- Facilitation of the work of drivers.

It should be noted that this positive effect became possible because The system is universal for any type of locomotive.

The noted technical result is achieved due to the fact that the diagnostic system is a microprocessor system that is constantly connected to the control circuits of the locomotive, and has a CAN-information exchange channel with external airborne control and safety systems, which uses a graphic display of the automatic control system as a means of displaying information At the same time, the keyboard of the auto-driving system is used as a control panel.

Thus, in contrast to the standard PUM-Skoda analog diagnostic system, the proposed microprocessor system automatically checks the locomotive circuits, records the result in the internal memory, and quickly identifies and localizes the malfunction.

Checking the performance of the locomotive is carried out in several ways: stationary and automatic.

1. Stationary check, carried out during the maintenance of the locomotive. It is carried out by the technical staff of the depot, for which it is necessary to activate this function in the system menu.

2 Automatic verification is carried out when performing train work. During movement, the system monitors the condition of the locomotive circuits. When abnormal conditions are detected, an algorithm for checking the circuit is activated. For example, in case of power failure on one of the contactors of the motor-fans:

- a shutdown check of 462 AZV is performed;

- checks the shutdown of the relay 400 (auxiliary machines);

- the state of the switch 418 is determined (on the driver's console);

- the state of the thermal relay is checked - when the lock is broken, a blinker alarm is polled;

- the inclusion of a time relay 422 is checked;

- the presence of power at the 212 contactor is checked (switching on the second stage MB). If after 10 seconds, after switching on 1 stage, the time relay does not work, the system will offer to assemble an emergency circuit for outputting starting resistances.

Based on the results of the check, an output is formed, which is displayed on the screen and fixed by the registration unit for recording on the cartridge. Based on the results of the trip, an archive is formed with the time and cause of the malfunctions that occurred during the trip.

Claims (1)

A system for diagnosing electric circuits of a locomotive, including a control panel, diagnostic and switching units associated with electric circuits of a locomotive and an information display means, characterized in that the diagnostic system is a microprocessor system that is constantly connected to the control circuits of the locomotive and has an information exchange channel CAN-interface with external on-board control and safety systems, which uses graphic wreath product automatic driving system with a keyboard automatic driving system used as a remote control.