JP5628070B2 - Train braking method and system during earthquake - Google Patents

Description

  The present invention relates to a train braking method and system optimization for train braking performed when a train derailment or structural damage is expected during an earthquake.

FIG. 5 is a schematic diagram of a conventional train braking system during an earthquake, and FIG. 6 is a diagram illustrating a conventional electric vehicle control device.
In FIG. 5, 101 is a train, 102 feeder, 103 is a transmission line, 104 is a substation (which may be a relay station) that supplies power, and 105 is a seismometer connected to the substation 104.
Further, as shown in FIG. 6, the electric vehicle control device mainly includes an ATC 201, a master controller (master controller) 202, a brake control device 203, an inverter control unit 204, an inverter 205, an electric motor 206, and an air brake control unit 207. The ATC 201 is a brake control unit 203, the mass control unit 202 is a brake control unit 203 and an inverter control unit 204, the brake control unit 203 is an inverter control unit 204, an air brake control unit 207, and the inverter control unit 204 is an inverter 205. The inverter 205 is connected to the electric motor 206, respectively.

  Therefore, the master controller 202 outputs a notch command to the brake control device 203 and the inverter control unit 204. The brake control device 203 outputs a brake command to the inverter control unit 204 and the air brake control unit 207 based on the notch command input from the master controller 202. The inverter control unit 204 controls the inverter 205 based on the notch command from the mass control 202 and the brake command from the brake control device 203. The electric motor 206 is driven by AC power supplied from the inverter 205. The ATC 201 outputs a brake command to the brake control device 203 when the speed of the electric vehicle exceeds a predetermined speed (see Patent Documents 1 and 2 below).

JP 2006-203969 A JP 2003-164004 A

In a conventional train braking system using a feeder stop system, since the seismometer 105 is connected to the substation 104, the seismometer must be installed in a place where the electromagnetic environment in the substation is bad. There is concern about operation. In addition, the substation is often in the immediate vicinity of the track or the road, and the seismometer 105 is affected by the ground vibration associated with the traveling of the train or automobile.
Furthermore, there is a problem that the train cannot be resumed for a while after the power supply is stopped to brake the train due to an earthquake. At this time, since the seismometer continues to output a stoppage signal for several minutes to the substation, there is a problem that the re-input of electricity is delayed.

  In view of the above situation, the present invention is configured to train braking that does not stop feeding, when earthquake information is false alarm and warning cancellation information is received or when safety is confirmed early, An object of the present invention is to provide a train braking method and system in an earthquake that can optimize the braking of the train.

In order to achieve the above object, the present invention provides
[1] In the train braking method in the event of an earthquake, an earthquake detection side control device to which a seismometer is connected is installed, and earthquake information is received wirelessly by the onboard control device of the train from the radio transmission device of this earthquake detection side control device By transmitting to the device and operating the power mode control device based on the earthquake information, the mass control device and the inverter control device are operated to switch to the train stop control mode, and the train brake control device can be operated. To do.

[2] In the train braking method at the time of the earthquake described in [1], the train brake control device changes train braking characteristics according to an alarm level corresponding to reliability of damage estimation.
[3] In a train braking system at the time of an earthquake, an on-vehicle installation having an earthquake detection side control device having a wireless transmission device to which a seismometer is connected and a wireless reception device for receiving earthquake information from the earthquake detection side control device A control device, a power mode control device disposed in the on-board control device, and a mode switching means for operating the master controller and the inverter control device to switch to the train stop control mode by operating the power mode control device; And a train brake control device that is operable based on the mode switching means.

  [4] In the train braking system at the time of the earthquake described in [3], the train brake control device changes a braking characteristic of the train according to an alarm level corresponding to reliability of damage estimation. To do.

According to the present invention, when the earthquake information is false and alarm cancellation information is received, or when safety is confirmed in a very short time after the occurrence of the earthquake, it is possible to quickly reaccelerate without stopping the train.
Furthermore, the braking characteristics of the train can be changed according to the alarm level corresponding to the reliability of damage estimation.

It is a mimetic diagram of a train braking system at the time of an earthquake showing an example of the present invention. It is a block diagram of an on-board control device of a train braking system at the time of an earthquake showing an embodiment of the present invention. It is a flowchart which shows the train stop control method of the train braking system at the time of the earthquake which shows the Example of this invention. It is a flowchart figure which shows the train stop recovery | restoration control method of the train braking system at the time of the earthquake which shows the Example of this invention. It is a schematic diagram of the train braking system at the time of the conventional earthquake. It is a figure which shows the conventional electric vehicle control apparatus.

  The train braking method at the time of an earthquake of the present invention is provided with an earthquake detection side control device to which a seismometer is connected, and earthquake information is wirelessly received by the onboard control device of the train from the radio transmission device of the earthquake detection side control device. By transmitting to the device and activating the power mode control device based on the earthquake information, the mascon and the inverter control device are operated to switch to the train stop control mode, and the train brake control device can be operated.

Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a schematic diagram of a train braking system at the time of an earthquake showing an embodiment of the present invention, FIG. 2 is a block diagram of an on-board controller of the train braking system, and FIG. 3 is a train stop control method of the train braking system. FIG. 4 is a flowchart showing the train stop recovery control method.

In these drawings, 1 is a train, 2 is a feeder for supplying power to the train 1, 3 is a power transmission line, and 4 is a power supply system such as a substation.
On the other hand, 5 is a vehicle-mounted control device, 5A is a CPU (central control device), 5B is a power mode control device, and 5C is connected to the power mode control device 5B, and has an alarm level corresponding to the reliability of damage estimation. A control device that changes the braking characteristics of the train accordingly, 5D is connected to the power mode control device 5B and the control device 5C, 5E is connected to the power mode control device 5B, ATC is connected to the power control device 5B, and 5F is connected to the master control 5D and ATC 5E. The train brake control device 5G is an inverter control device connected to the masscon 5D, 5H is an inverter (train drive control device) connected to the inverter control device 5G, and 5I is an electric motor connected to the inverter 5H. Further, 6 is a wireless receiver mounted on the train 1, 7 is an antenna, 10 is an earthquake detection side control device, 11 is a wireless transmission device, 12 is an antenna, and 13 is a seismometer connected to the earthquake detection side control device 10. , 14 is a seismometer communication network for communicating with other seismometers.

The stop control method of the train braking system at the time of the earthquake of the present invention will be described with reference to FIG.
(1) First, when the seismometer 13 detects seismic motion by itself or when the seismometer communication network 14 receives earthquake information of another seismometer, the seismometer 13 is connected to the connected earthquake detection side control device 10. The information is transmitted (step S1).

(2) The earthquake detection side control device 10 determines whether or not there is a possibility of train derailment or structural damage based on the received earthquake information. Damage estimation is based on past railway damage cases. Also, an alarm level is determined according to the reliability of damage estimation (step S2).
(3) When the derailment of the train or the damage of the structure is predicted from the seismometer 13's own information and the earthquake information obtained from another seismometer by the seismometer communication network 14, the earthquake detection side control device 10 The earthquake information is transmitted to the on-board control device 5 of the train 1. (Step S3).

(4) The onboard control device 5 that has received the earthquake information by the wireless reception device 6 operates the power mode control device 5B (step S4).
(5) When the power mode control device 5B operates, the mass control 5D and the inverter control device 5G operate to switch to the train stop control mode (step S5).
(6) A command is issued from the mascon 5D based on the control device 5C that changes the braking characteristics of the train according to the alarm level corresponding to the reliability of damage estimation, and the train brake control device 5F is put into operation (step S6).

Next, the case of returning from the train stop control mode to the normal operation will be described with reference to FIG.
(1) In the on-board control device 5 of the train 1, it is confirmed whether the train stop control mode can be returned to the normal mode (step S11). As confirmation means, it is performed by receiving real-time information of the seismometer installed near the track of the route on which the train 1 travels by the disaster prevention information display system in the command.

(2) If it can be confirmed that the normal mode can be restored, the brake is released by the train brake control device 5F (step S12).
(3) Next, the inverter control device 5G is returned to the normal mode (step S13).
(4) The power mode control device 5B is returned to the normal mode, and the normal operation of the train 1 is resumed by the inverter control device 5G (step S14).

  In the present invention, since the seismometer does not necessarily need to be installed in the immediate vicinity of the railway line, it can be installed in a place where external noise such as electromagnetic environment, train vibration, and road traffic is difficult to enter. In addition, it does not stop feeding as in the past, so if the earthquake information is a false alarm and warning cancellation information is received, or if safety is confirmed in a very short time after the earthquake occurs, the train will not stop. Can be re-accelerated quickly.

According to the present invention, the control device that changes the braking characteristics of the train according to the alarm level corresponding to the reliability of damage estimation can limit the control of the mascon and change the braking characteristics of the train. .
In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

  The train braking method and system thereof in the event of an earthquake of the present invention is configured not to stop feeding as in the prior art, so that when the earthquake is falsely reported or safety is confirmed early, train braking It can be used as a train braking method during an earthquake.

1 train 2 feeder 3 transmission line 4 power supply system (substation)
5 Onboard control device 5A CPU (Central control device)
5B Power mode control device 5C Control device that changes the braking characteristics of the train in accordance with the reference value for restricting operation 5D Masscon 5E ATC
5F Train brake control device 5G Inverter control device 5H Inverter (train drive control device)
5I Electric motor 6 Radio receiver 7, 12 Antenna 10 Earthquake detection side controller 11 Radio transmitter 13 Seismometer 14 Seismometer communication network

Claims (4)

  Install an earthquake detection side control device to which a seismometer is connected, transmit earthquake information from the wireless transmission device of the earthquake detection side control device to the wireless reception device of the on-board control device of the train, and based on the earthquake information A train braking method at the time of an earthquake characterized in that by operating a power mode control device, a mascon and an inverter control device are operated to switch to a train stop control mode and the train brake control device can be operated.   The train braking method according to claim 1, wherein the train brake control device changes a braking characteristic of the train according to an alarm level corresponding to reliability of damage estimation. . (A) an earthquake detection side control device having a wireless transmission device to which a seismometer is connected;
(B) On-board control device having a wireless reception device for receiving earthquake information from the earthquake detection side control device;
(C) a power mode control device disposed in the on-vehicle control device;
(D) by operating the power mode control device, the mode switching means for operating the mascon and the inverter control device to switch to the train stop control mode;
(E) A train braking system for an earthquake characterized by comprising a train brake control device that is operable based on the mode switching means.   The train braking system at the time of an earthquake according to claim 3, wherein the train brake control device changes the braking characteristics of the train according to an alarm level corresponding to the reliability of damage estimation. Train braking system.

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