JP4577769B2 - Vehicle control device - Google Patents

Description

  The present invention relates to a vehicle control device. The on-board device and the vehicle control device according to the present invention specifically constitute an ATC device (automatic train control device) and an ATS device (automatic train stop device).

  The ATC device selects an appropriate speed signal (ATC signal) in the ground device based on the position condition of the preceding vehicle and transmits it to the track circuit, and sends the ATC signal to the vehicle via the rails constituting the track circuit. Received by the device. The on-board device causes the vehicle to travel at a speed indicated by the received ATC signal. In the normal state where the ATC signal is received, speed control is performed by the service brake. However, when the ATC signal cannot be received, that is, when the ATC signal is no signal when viewed from the vehicle side, the emergency brake is applied, Ensure safe operation.

  This is because, conventionally, when the ATC signal cannot be received on the vehicle side, the speed limit is not known on the vehicle side, so the concept of ensuring safety by outputting an emergency brake has been taken.

  However, once the emergency brake is applied, it takes time and effort to start the vehicle again, which causes disturbance of the vehicle operation diagram.

  Therefore, if it can be determined on the vehicle side that the train is stably stopped, it is desired to continue to stop with the service brake without receiving the ATC signal. As such means, for example, a tracking ATC device described in Patent Document 1 is known. This tracking ATC device is configured to track the movement of a vehicle and transmit an ATC signal addressed to the vehicle by a transmitter assigned to each vehicle based on the vehicle position.

  However, at stations and detention lines, it is necessary to keep the vehicle ready for departure without delay, so prepare transmitters to be assigned to each vehicle, supply ATC signals by the transmitters, and prevent emergency braking. There must be.

For this reason, the number of transmitters increases in places where the number of parked and detained vehicles increases, such as stations and indwelling lines, which is contrary to the original purpose of reducing the number of transmitters.
Japanese Patent Laid-Open No. 2003-2202

  An object of the present invention is to provide an on-board device and a vehicle control device in which an emergency brake is not applied to a vehicle that is stably stopped at a station, a detention line, or the like.

  Another object of the present invention is to provide an on-board device and a vehicle control device that can reduce equipment costs.

  In order to solve the above-described problem, a vehicle control device according to the present invention includes a ground device and an on-board device. The ground device constitutes a train tracking function and an automatic train control function, that is, a tracking ATC device. The on-board device outputs a service brake signal when the traveling speed of the host vehicle is higher than the speed indicated by the speed control signal supplied from the ground device. On the other hand, when the speed control signal is not supplied, the vehicle is stably stopped on condition that the speed of the vehicle is equal to or less than a predetermined value, the brake handle is at the maximum position, and the power running handle is in the off state. If it is determined that the above-mentioned condition is not satisfied, the emergency brake signal is output.

  In the present invention, the ground device constitutes a train tracking function and an automatic train control function, that is, a tracking ATC device. Therefore, the merit by the well-known tracking type ATC device can be obtained.

  The on-board device outputs a service brake signal when the traveling speed of the host vehicle is higher than the speed indicated by the speed control signal supplied from the ground device. It is possible to perform speed control by means of.

  The feature of the present invention is that when the speed control signal is not supplied, it is determined that the vehicle is stably stopped, and the service brake signal is output, and when the above condition is not satisfied, the emergency brake signal is output. It is in. The vehicle is stably stopped means that the vehicle is stopped in a state where the vehicle does not start moving. A typical stop is on a station or indwelling line.

  Here, in the case of the present invention, a vehicle that is stably stopped at a station, an indwelling line, or the like is applied with a service brake, not an emergency brake. For this reason, when leaving the vehicle again, the vehicle can be started without delay without taking time as in the case of releasing the emergency brake.

  Whether or not the vehicle is stably stopped is determined based on whether or not the vehicle speed is equal to or lower than a predetermined value, the brake handle is at the maximum position, and the power running handle is in the off state. Therefore, it can be reliably determined whether or not the vehicle is stably stopped.

  When the above conditions are not satisfied, an emergency brake signal is output. Therefore, even if an abnormal state occurs, there is no danger of vehicle operation.

  The ground device can include a signal processing unit, a transmission unit, and a connection switching unit as its specific configuration. The signal processing unit is supplied with an input signal including course information and standing line information from the outside, and based on the input signal, a block section to which a speed control signal is to be supplied, and a speed signal to be supplied to the block section Determine. The transmission unit generates a speed control signal based on an instruction given from the signal processing unit, and the connection switching unit blocks the speed control signal output from the transmission unit as instructed by the signal processing unit. Supply to the section.

  According to the above configuration, it is possible to control the vehicle speed by supplying an accurate speed control signal to a vehicle existing in a specific blockage section based on the route information and the existing line information supplied from the outside.

  Further, when the signal processing unit can determine from the input signal that the vehicle is stably stopped, the signal processing unit is connected to the blocking section where the vehicle is stopped with respect to the transmission unit and the switching unit. And control that does not output the speed control signal. Therefore, if the vehicle is stably stopped, the speed control signal is not supplied to the on-board device mounted on the vehicle. Therefore, the number of transmission units is increased by the amount that the speed control signal is not supplied. Therefore, the equipment cost can be reduced accordingly. In addition, it is possible to reduce time and effort required for equipment maintenance.

As described above, according to the present invention, the following effects can be obtained.
(A) It is possible to provide a vehicle control device in which an emergency brake is not applied to a vehicle that is stably stopped on an indwelling line or the like.
(B) It is possible to provide a vehicle control device that can reduce the equipment cost.

  Other features of the present invention and the operational effects thereof will be described in more detail by way of examples with reference to the accompanying drawings.

  FIG. 1 is a diagram for explaining an embodiment of a vehicle control device according to the present invention, and FIG. 2 is a flowchart of the on-board device shown in FIG. The illustrated vehicle control device is, for example, a train tracking type vehicle control device using ATC. For example, an ATS device or the like may be used as the vehicle control device.

  In FIG. 1, the vehicle control device includes an on-board device 10 and a ground device 30. The track 6 is divided into a plurality of n closed sections 1T to nT. The closed sections 1T to nT are configured as track circuits.

  The on-board device 10 includes a power receiver 11, a reception unit 13, a speed detection unit 12, a signal processing unit 14, and a brake control unit 15. The on-board device 10 is mounted on the vehicle TR1. Reference numeral 21 is a wheel of the vehicle TR1.

  The signal processing unit 14 is usually supplied with a speed control signal S1 and a speed detection signal S2, and performs a speed check using the supplied signals, and generates a service brake signal S3 in response to the speed check signal S3. This is supplied to the control unit 15. The signal processing unit 14 generates an emergency brake signal S4 and supplies it to the brake control unit 15.

  The signal processing unit 14 further detects the service brake signal S3 when the speed of the vehicle TR1 is equal to or less than a predetermined value, for example, 5 (km / h) or less, the brake handle is at the maximum position, and the power running handle is in the off state. Is output. The speed of the vehicle TR1 is given by a signal S2 supplied from the speed detector 12 constituted by a speed generator or the like. A signal S5 indicating that the brake handle is at the maximum position and a signal S6 indicating that the power running handle is in the OFF state are supplied from the handle operating unit.

  The brake control unit 15 operates the brake device 22 according to the service brake signal S3 or the emergency brake signal S4. The service brake and the emergency brake have different functions at the time of brake operation. In the event of an emergency, it is necessary to ensure that the vehicle is stopped by an emergency brake, and in normal times, the service brake must be instantly operated and released to realize passenger operation and vehicle operation that takes into account the optimal vehicle operation schedule. Because there is.

  The emergency brake is configured to release the brake gas during the emergency brake operation, and the brake gas must be injected in order to start the vehicle after the emergency brake operation. The injection of the brake gas takes about 5 minutes, for example, and the vehicle cannot start until the brake gas injection is completed, and the vehicle is kept stopped. In contrast, the service brake can immediately release the service brake operation and accelerate the vehicle after the service brake operation.

  For example, the speed detection unit 12 detects a vehicle speed by a speed generator and outputs a speed detection signal S2. Even if the vehicle speed is not completely zero, for example, the speed detector 12 can consider that the vehicle speed is zero if the speed is 5 (km / h) or less. The speed detection unit 12 may be, for example, a device that receives vehicle speed information from the ground, or may detect a vehicle speed using a GPS (Global Positioning System) or the like.

  FIG. 2 is a diagram showing a specific configuration of the ground device 30. In the figure, the ground device 30 includes a control unit 60, transmission units Tx1 to Txm, and connection switching units 51 to 5m. The number m is the number of vehicles TR1 that can exist in the closed sections 1T to nT, and is generally smaller than the closed section number n.

  The ground device 30 includes a signal processing unit 60, a transmission unit Tx1, and a connection switching unit 51. The signal processing unit 60 of the ground device 30 is supplied with an input signal including route information and standing line information from the outside, and based on the input signal, the block sections 1T to nT to which the speed control signal is to be supplied, and the block section 1T Determine the speed signal to be supplied to ~ nT.

  The transmission units Tx1 to Txm generate a speed control signal based on an instruction given from the signal processing unit 60. The transmission units Tx1 to Txm are independently connected to each of the plurality of closed sections 1T to nT configured by the track circuit, and generate the speed control signal S1 instructed by the signal processing unit 60. The speed control signal S1 includes, for example, an ATC signal and an ATS signal.

  The connection switching unit 51 supplies the speed control signals output from the transmission units Tx1 to Txm to the closed sections 1T to nT instructed by the signal processing unit 60. For example, when paying attention to the transmission unit Tx1, the transmission unit TX1 is selectively connected to any one of the plurality of blocked sections 1T to nT. The connection switching unit 51 can be configured using, for example, a relay, a transistor switch, or the like. In the figure, when the vehicle TR1 travels in the direction of the arrow X, the ON state of the relay switches 501 to 50n is shifted so that the connection switching unit 51 tracks the vehicle TR1 based on a signal from the transmission unit Tx1.

  The connection switching units 51 to 5m constitute a switch circuit that can connect each of the transmission units Tx1 to Txm to all the closed sections 1T to nT. Therefore, a signal transmission system that complements each other is configured by the transmission units Tx1 to Txm in signal transmission to the closed sections 1T to nT.

  In addition, since the relay switches 501 to 50n of the connection switching units 51 to 5m are sequentially connected to the block circuits 1T to nT, the ATC signal and the information input signal are supplied to the necessary block circuit following the train tracking result. Can supply. The operation of each of the relay switches 501 to 50n of the connection switching units 51 to 5m following the train tracking result is executed by a control signal supplied from the control unit 60.

  Next, the operation of the vehicle control device shown in FIGS. 1 and 2 will be described with reference to the flowchart of FIG. First, the case where the speed control signal S1 is supplied from the transmission unit Tx1 of the ground device 30 to the closed section 2T via the relay switch 502 of the connection switching unit 51 will be described.

  In this case, the speed control signal S1 is received by the power receiver 11 and guided to the signal processing unit 14 of the on-board device 10. The signal processing unit 14 checks the speed limit indicated by the speed control signal S1 and the vehicle speed obtained by the speed detection unit 12, and outputs a service brake signal S3 when the traveling speed is larger than the speed limit. , Perform regular brake control. When the traveling speed is lower than the speed limit, the service brake is released. According to this configuration, general ATC control and ATS control can be realized. Since the ground device 30 constitutes a train tracking function and an automatic train control function, that is, a tracking ATC device, it is possible to obtain the merit of a known tracking ATC device.

  Next, a case where a speed control signal is not supplied will be described as a matter related to the feature of the present invention. In this case, the on-board device 10 determines whether the vehicle speed is equal to or lower than a predetermined value, the brake handle is at the maximum position, and the power running handle is in the off state. If the determination is affirmative, it is determined that the vehicle is stably stopped, and a service brake signal is output.

  On the contrary, when the above determination is negative, that is, when the above condition is not satisfied, an emergency brake signal is output.

  As described above, a vehicle that is stably stopped at a station, an indwelling line, or the like is applied with a service brake, not an emergency brake. For this reason, when leaving the vehicle again, the vehicle can be started without delay without taking time as in the case of releasing the emergency brake.

  Whether or not the vehicle is stably stopped is determined by whether or not the vehicle speed is equal to or lower than a predetermined value, the brake handle is at the maximum position, and the power running handle is in the off state. It is possible to reliably determine whether or not

  Moreover, an emergency brake signal is output when the above conditions are not satisfied, so there is no danger in vehicle operation even if an abnormal state occurs.

  In the embodiment, based on an input signal including course information and standing line information supplied from the outside by the signal processing unit 60, a block section to which a speed control signal is to be supplied, and a speed signal to be supplied to the block section The transmission units Tx1 to Txm generate a speed control signal based on an instruction given from the signal processing unit 60, and the speed control signals output from the transmission units Tx1 to Txm are transmitted by the connection switching units 51 to 5m. The signal is supplied to the closed section designated by the signal processing unit 60.

  According to the above configuration, it is possible to control the vehicle speed by supplying an accurate speed control signal to a vehicle existing in a specific blockage section based on the route information and the existing line information supplied from the outside.

  Further, when the signal processing unit 60 can determine that the vehicle is stably stopped, the signal processing unit 60 disconnects the transmission unit Tx1 to Txm and the switching unit from the closed section where the vehicle is stopped, and Gives control that does not output control signals. Accordingly, if the vehicle is stably stopped, the speed control signal is not supplied to the on-board device 10 mounted on the vehicle. Therefore, the transmission units Tx1 to Tx1 are not supplied with the speed control signal. The number of Txm can be reduced, and the equipment cost can be reduced accordingly. In addition, it is possible to reduce the time and effort required for equipment maintenance.

  Next, this point will be described with reference to FIG. FIG. 4 is a diagram for explaining vehicle control of the vehicles TR1 and TR2 stopped on the platform of the station and the vehicle TR3 stopped on the detention line of the station.

  Since it is determined that the vehicles TR1 and TR2 stopped on the platform of the station are stably stopped, the speed control signal S1 is not supplied to the vehicles TR1 and TR2 in order to avoid emergency braking. Also good. That is, the transmission unit Tx2 to be connected to the blocked section 8T and the transmission unit Tx1 to be connected to the blocked section 3T can be removed from the allocation.

  Since it is determined that the vehicle TR3 stopped on the indwelling line is also stably stopped, the vehicle TR3 may not be supplied with the speed control signal S1 in order to avoid emergency braking. That is, the transmissions Tx3 and Tx4 to be connected to the blocking section 14T can be removed from the allocation. For this reason, the number of transmission parts Tx1-Txm used in a station and an indwelling line can be reduced, and equipment cost can be reduced by that much. In addition, it is possible to reduce time and effort required for equipment maintenance.

  In addition, the vehicles TR1 and TR2 that are stopped at the station, indwelling line, garage, etc. are not emergency brakes, but the service brakes are applied. Therefore, when the stopped vehicles TR1 and TR2 are started again, the emergency brakes are released. As described above, since the vehicle can be started without delay, there is no possibility of disturbing the diamond.

  In addition, since it is not necessary to supply the speed control signal S1 to the vehicles TR1 and TR2 that are stably stopped at the station, the detention line, or the like, the power can be reduced by that amount.

  While the present invention has been described with reference to the embodiment, it is needless to say that the present invention is not limited to this embodiment, and various modifications and changes can be made within the scope of the claims.

It is a figure explaining one Example of the vehicle control apparatus which concerns on this invention. It is a figure which shows the structure of a ground apparatus concretely about the vehicle control apparatus which concerns on this invention. It is a flowchart explaining operation | movement of the vehicle control apparatus shown in FIG.1 and FIG.2. It is a figure explaining the example at the time of applying the vehicle control apparatus which concerns on this invention to a station, a detention line, or a garage.

Explanation of symbols

30 Ground device Tx1-Txm Transmitter 51-5m Connection switching unit
10 On-vehicle equipment
13 Receiver
12 Speed detector
14 Signal processor
15 Brake control unit
S1 Speed control signal
S2 Speed detection signal
S3 Service brake signal
S4 Emergency brake signal

Claims (2)

A vehicle control device including a ground device and an on-vehicle device,
The ground device has a train tracking function and an automatic train control function,
The on-board device is
When the traveling speed of the host vehicle is greater than the speed indicated by the speed control signal supplied from the ground device, a service brake signal is output,
When the speed control signal is not supplied, the service brake signal is output on condition that the speed of the vehicle is equal to or lower than a predetermined value, the brake handle is at the maximum position, and the power running handle is in an off state,
When the speed control signal is not supplied, the emergency brake signal is output when the vehicle speed is not more than a predetermined value, the brake handle is at the maximum position, and the power running handle is off. ,
Vehicle control device. The vehicle control device according to claim 1,
The ground device includes a signal processing unit, a transmission unit, and a connection switching unit,
The signal processing unit is supplied with an input signal including course information and standing line information from the outside, and based on the input signal, a block section to which a speed control signal is to be supplied, and a speed signal to be supplied to the block section Determine
The transmission unit generates a speed control signal based on an instruction given from the signal processing unit,
The connection switching unit supplies the speed control signal output from the transmission unit to the block section instructed by the signal processing unit,
Further, when the signal processing unit can determine that the vehicle is stably stopped by the input signal, the signal processing unit is connected to the blocking section where the vehicle is stopped with respect to the transmission unit and the switching unit. Giving control that does not output the speed control signal,
Vehicle control device.

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