A rescue brake command control system for EMUs

Abstract

A train multiple unit return rescue brake command control system relates to a train multiple unit return rescue brake command control system, which solves the problems that the existing single-tube design brake system multiple unit lacks a complete return rescue brake command control circuit, can only be rescued but cannot rescue other multiple units without speed limit and without cutting off the brake of the rescued multiple unit; the mutual rescue capability between multiple units is limited, and thus the needs of future standardized design of multiple units cannot be met. The invention comprises a return rescue power supply control circuit, a rescued working condition brake command output circuit and a rescue working condition brake command input circuit; the brake command control system is a brake electrical command control system that can cover rescue working conditions and rescued working conditions, so that the braking control of vehicles under rescue and rescued working conditions is safer and more reliable. The return rescue brake command control system of the invention is designed and used on my country's Fuxing multiple unit, and has good actual use effect.

Description

Technical Field

[0001] The invention relates to a train set rescue brake command control system. Background Art

[0002] The existing EMUs in my country are of various types due to different manufacturers and design platforms. The mutual rescue methods of different types of EMUs are varied, and there are problems such as cumbersome rescue operations, limited rescue speed, and insufficient rescue safety and reliability.

[0003] At present, the existing EMUs in China are mainly those with a single-tube brake system and those with a double-tube brake system.

[0004] When the coupler and the train pipe can be connected, the EMU with a double-tube braking system can rescue the EMU with a single-tube braking system through the train pipe. In this rescue mode, the braking command triggered by the front car can be transmitted to the rear car through the train pipe. After the rescue return device of the rear car recognizes the pneumatic braking command transmitted by the train pipe of the front car, it is converted into an electrical braking command output to the braking command line of the rear car; the control scheme of the braking command is as follows: Figure 1 shown.

[0005] When the coupler can be connected, the EMU with a single-tube braking system can only perform speed-limited rescue for the double-tube braking system with the braking function cut off. In this rescue method, the front vehicle (single-tube rescue vehicle) cannot transmit the braking command to the rear vehicle (double-tube rescued). To ensure safety, the rear vehicle needs to cut off all braking capacity and be rescued at a lower speed.

[0006] In summary, the EMU with a single-tube braking system lacks a complete rescue return brake command control circuit, and can only be rescued but cannot rescue other EMUs without speed limit or brake removal of the rescued EMU. This limits the ability of EMUs to rescue each other and cannot meet the needs of future standardized design of EMUs. Summary of the invention

[0007] The present invention provides an EMU return rescue brake command control system to solve the problems that the existing EMU with a single-tube brake system lacks a complete return rescue brake command control circuit, can only be rescued but cannot rescue other EMUs without speed limit and without cutting off the brakes of the rescued EMU; the ability of EMUs to rescue each other is limited, and the needs of future standardized design of EMUs cannot be met.

[0008] A rescue brake command control system for an EMU, comprising a rescue power supply control circuit, a rescued working condition brake command output circuit and a rescue working condition brake command input circuit;

[0009] The rescue return control circuit includes an independent power supply and a rescue / rescued mode selection switch; the independent power supply supplies power to the rescue / rescued mode selection switch;

[0010] The brake command relay in the rescued working condition brake command output circuit receives the brake command from the vehicle brake controller in the non-rescued working condition, and transmits the received brake command to each brake control device through the train line running through the entire train; in the rescued working condition, the vehicle brake controller fails, and the brake command relay receives the brake command from the rescue return device, and transmits the brake command to each brake control device through the train line running through the entire train;

[0011] When the vehicle is in a rescue condition, the rescue condition brake command input circuit transmits the brake command issued by the brake controller to the rescue return device, and the rescue return device will start the rescue mode and transmit the above brake command to the rescued EMU at the other end of the train pipe in the form of compressed air through the train pipe.

[0012] Beneficial effects of the present invention: The brake command control system described in the present invention is a brake electrical command control system that can cover rescue conditions and rescued conditions, making the braking control of vehicles under rescue and rescued conditions safer and more reliable.

[0013] The present invention is aimed at my country's rescue return device. While realizing the locomotive rescue return and being rescued by the existing EMU, it also needs to meet the function of rescuing the existing EMU. Therefore, it is necessary to develop a new brake electrical command control system under rescue conditions for the Fuxing EMU with a single-tube design braking system, and the system is required to have a clear interface, a simple structure, and universal applicability. According to this design requirement, an EMU return rescue brake command control system is designed through an integrated concept to realize the transmission and control of brake commands during locomotive rescue return and EMU mutual rescue.

[0014] The rescue brake command control system of the present invention is designed and used on the Fuxing EMU in my country. The actual use effect is good and the design effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the control principle diagram of the existing EMU rescue brake command;

[0016] Figure 2 It is a structural schematic diagram of a EMU rescue brake command control system according to the present invention;

[0017] Figure 3 It is an electrical schematic diagram of a EMU rescue brake command control system according to the present invention;

[0018] Figure 4It is a schematic diagram of a rescue return control circuit in a rescue brake command control system for an EMU according to the present invention;

[0019] Figure 5 It is a schematic diagram of a rescued working condition braking command output circuit in a EMU rescue braking command control system according to the present invention;

[0020] Figure 6 The present invention provides a schematic diagram of a rescue brake command input circuit in a train multiple unit rescue brake command control system. DETAILED DESCRIPTION

[0021] Specific implementation method 1. Combination Figures 2 to 6 The present embodiment is described as follows: the present embodiment designs a braking electrical command control system that can cover both rescue conditions and rescued conditions, so that the braking control of the vehicle under rescue and rescued conditions is safer and more reliable.

[0022] For Chinese models, while realizing the rescue and return of locomotives and the rescue of existing EMUs, it is also necessary to meet the function of rescuing existing EMUs. Therefore, it is necessary to develop a new brake electrical command control system under rescue conditions for the Fuxing EMU with a single-tube brake system, and the interface is required to be clear and simple, the structure is simple, and it has universal practicality. According to this design requirement, an EMU return rescue brake command control system is designed through an integrated concept to realize the linkage (synchronous) transmission and control of the brake command during locomotive return and mutual rescue. Its specific composition is: including a return rescue control circuit 1, a rescued condition brake command output circuit 2, and a rescue condition brake command input circuit 3.

[0023] Combination Figure 4 In this embodiment, the rescue control circuit 1 is composed of an independent power supply BD1-1 and a rescue / rescue mode selection switch 1-2. The independent power supply 1-1 is a power supply dedicated to the rescue / rescue working condition, which is directly powered by a battery and still outputs DC110V power when the battery switch is turned off.

[0024] The rescue / rescued mode selection switch 1-2 is a manual selection switch, which has three gears, namely, rescue position, 0 position, and rescue position; the rescue / rescued mode selection switch has three control functions:

[0025] 1) This switch can control the power supply of the independent power supply 1-1 to the rescue return device through the on-off of the switch contacts. The rescue return device can be powered only when the switch is in the rescue / rescued position, avoiding the waste of battery power and the rescue return device generating erroneous instructions to the vehicle;

[0026] 2) The switch signals of the rescue position and the rescued position of the switch will also be output to the rescue feedback device to activate the rescue and rescued functions of the rescue feedback device respectively.

[0027] 3) When the switch is in the rescue / rescued position, it means the activation of the rescue return device. At this time, the vehicle brake controller at the connecting end will fail, and the rescue return device will replace the brake controller and generate brake control instructions for the vehicle.

[0028] Combination Figure 5 In this embodiment, the rescue condition brake command output circuit 2 is composed of a group (4) of unidirectional diodes 2-1, a brake command relay 2-2 、 It consists of 1 group (4) of unidirectional diodes 2-3 and a brake command control circuit 2-4 for the driver's handle. The function of the unidirectional diode 2-1 is to ensure the unidirectionality of the output signal of the rescue feedback device, and to prevent the driver's handle brake command control circuit 2-4 from affecting the rescue feedback device. A unidirectional diode 2-3 is also provided in the vehicle circuit to prevent the rescue feedback circuit from affecting the vehicle's conventional circuit. When the vehicle is not in a rescue condition, the brake command relay 2-2 receives the brake command from the vehicle's brake controller, and transmits it to each brake control device through the train line that runs through the entire train; when the vehicle is in a rescue condition, the brake controller fails, and the brake command relay 2-2 will receive the brake command from the rescue feedback device, and transmit it to each brake control device through the train line that runs through the entire train. The B1 / B2 / B3 line is the brake command encoding line, and the Braking line is the brake status command line.

[0029] Combination Figure 6 To illustrate this embodiment, the rescue condition brake command input circuit 3 is composed of passive normally open contacts 3-1 and some wires of the brake command train line relay arranged in all carriages of the whole train. This group of passive contacts is connected between the rescue / rescued mode selection switch and the rescue return device, and can encode the brake command level 0-7 and the brake status command, and transmit the command to the rescue return device. When the vehicle is in the rescue condition, this circuit can transmit the brake command issued by the brake controller to the rescue return device. At this time, the rescue return device will activate the rescue condition and transmit the above brake command to the rescued EMU at the other end of the train pipe in the form of compressed air through the train pipe.

[0030] In the control system described in this embodiment, the brake controller and brake control device are both existing technologies, produced by many domestic suppliers, and have been widely used in my country's Fuxing EMUs. Typical brake controllers such as the S359 series brake controllers produced by Xi'an Schartbau Electric Co., Ltd. and typical brake control devices such as the TKD604 series brake control devices produced by Beijing Zongheng Electromechanical Technology Co., Ltd. are all suitable for the EMU rescue brake command control system described in this article.

Claims

1. A train-train rescue brake command control system, comprising a rescue control circuit (1), a rescued braking command output circuit (2) and a rescue braking command input circuit (3); wherein: The rescue return control circuit (1) comprises an independent power supply and a rescue / rescued mode selection switch; the independent power supply (1-1) supplies power to the rescue / rescued mode selection switch; The brake command relay (2-2) in the rescued working condition brake command output circuit (2) receives the brake command from the vehicle brake controller in a non-rescued working condition, and transmits the received brake command to each brake control device through the train line running through the entire train; in the rescued working condition, the vehicle brake controller fails, and the brake command relay (2-2) receives the brake command from the rescue return device, and transmits the brake command to each brake control device through the train line running through the entire train; When the vehicle is in a rescue condition, the rescue condition brake command input circuit (3) transmits the brake command issued by the brake controller to the rescue return device, and the rescue return device turns on the rescue mode and transmits the brake command to the rescued EMU at the other end of the train pipe in the form of compressed air through the train pipe; The rescued working condition brake command output circuit (2) also includes a controller handle brake command control circuit (2-4) and two groups of unidirectional diodes; each group of unidirectional diodes has four unidirectional diodes, one end of the first group of unidirectional diodes (2-1) is connected to the rescue return device, and the other end is connected to the brake command relay (2-2) through a brake command coding line and a brake command status line; one end of the second group of unidirectional diodes (2-3) is connected to the controller handle brake command control circuit (2-4), and the other end is connected to the brake command relay (2-2) through a brake command coding line and a brake command status line; The rescue working condition braking command input circuit (3) is composed of a group of braking command relay passive contacts (3-1), wherein the passive contacts (3-1) are connected between the rescue / rescued mode selection switch and the rescue feedback device, and are used to encode braking commands of levels 0-7 and braking status commands, and transmit the commands to the rescue feedback device.

2. The EMU rescue brake command control system according to claim 1, characterized in that: The independent power supply is directly powered by a battery and outputs DC110V power when the battery switch is turned off.

3. The EMU rescue brake command control system according to claim 1, characterized in that: The rescue / rescued mode selection switch is a manual selection switch with three selection levels, namely, rescue position, 0 position and rescued position.

4. The EMU rescue brake command control system according to claim 1, characterized in that: The rescue / rescue mode selection switch has three control functions:

1. The power supply of the rescue return device to the independent power supply is controlled by the on-off of the switch contact. The rescue return device is powered only when the switch is in the rescue / rescued position; 2. The switch signals of the rescue position and the rescued position of the switch are output to the rescue return device, so as to respectively activate the rescue and rescued functions of the rescue return device; 3. When the switch is in the rescue / rescued position, the rescue return device is activated, the vehicle brake controller at the coupling end will fail, and the rescue return device will generate a brake control command for the vehicle.

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