JP2008137485A - Train controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make processing load required for preparation of a brake pattern of a train controller constant even if a plurality of speed restrictions exist up to a stopping point. <P>SOLUTION: In the train controller, the brake pattern to the speed restriction and the stopping point is prepared in the train controller from information fed from a ground device and on-vehicle database memorized in the train controller of an on-vehicle device to perform train control. The brake pattern of fixed speed restriction is prepared from the on-vehicle database during when the previously prepared information is registered on the on-vehicle database or during initial processing of the on-vehicle device, and is memorized in the on-vehicle device. The brake pattern to the stopping point and the brake pattern to the temporary speed restriction are played/prepared on the on-vehicle device in every constant period, thereby the processing load required for preparation of the brake pattern is made constant. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a train control device that creates a brake pattern in an on-vehicle device and controls the speed of a train using the created brake pattern.

  By using digital information as the signal transmitted from the ground, it is possible to transmit the track circuit to stop to the vehicle (train) side, and the vehicle (train) can be used as a stop point based on vehicle performance and route conditions. A one-step brake curve is created to stop the train. When the own train speed exceeds the brake curve, the brake is automatically activated to shorten the train time interval and improve the ride comfort. .

  On the other hand, in order to further reduce the time interval of trains and reduce equipment costs, a moving blockage in which the blockage is set not by the track circuit but by the train position is being studied.

For example, in Patent Document 1, the ground brake pattern data created by the ground brake pattern creation unit is transmitted to the vehicle, and the train travel pattern data and the target travel speed data are created based on the ground brake pattern data. A control system is disclosed, and Patent Document 2 discloses a train control device that calculates a brake pattern based on temporary speed limit information from the transmission unit and the position of a preceding train.
JP 09-193804 A JP 2002-225709 A

  The problem to be solved is that when all brake patterns are generated off-line, there is a limit to the number of brake patterns that can be stored in the on-board device, so it cannot be adopted for a mobile block system where the block section moves with the preceding train. It is.

  Further, when all the brake patterns are generated online, the number of brake patterns to be created increases, so that the number of calculation processing points increases, and the processing load of the on-board device increases.

  In addition, when all brake patterns are generated online, it is necessary to consider that the processing load changes depending on the number of brake patterns, and there are more restrictions than necessary on the control cycle, pattern update cycle, number of brake patterns that can be created, and functions. It is a point that needs to be made.

  The above object is achieved by generating the brake pattern up to the fixed speed limit off-line and generating the other patterns on-line.

  By using the method according to the present invention, a brake pattern can be calculated with a constant processing load, and it is possible to cope with movement blockage.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows one embodiment of the apparatus of the present invention and shows a configuration including a train control apparatus. In FIG. 1, the command device 100 and the ground device 101 are devices on the ground side. The command device 100 transmits an operation schedule to the ground device 101. The ground device 101 detects the on-line position of each train on the route, and creates a stop point of each train from the operation schedule and the on-line information.

  In addition, the commanding device 100 transmits a temporary speed limit (hereinafter referred to as a temporary speed limit) to the ground device. The ground device 101 continues to transmit to the train a current section, a stopping point, and a temporary speed limit of each train that change every moment. The transmission / reception unit 103 in the own train 102 receives the current train section, stop point, and temporary speed limit transmitted from the ground device 101 and transmits them to the train control device 104.

  In the train control device 104, brake pattern information 105 generated off-line and an on-board database 106, which is information necessary for creating the brake pattern, are mounted in advance. The brake pattern information 105 is created in advance using a fixed speed limit, tunnel information, gradient information, curve information, and vehicle performance information in the on-board database 106.

  A brake pattern search unit 107 in the train control device 104 searches for a brake pattern for a fixed speed limit from the current section to the stop point, and transmits the brake pattern to the brake output determination unit 109. The brake pattern calculation unit 108 calculates a stop point and a brake pattern for limiting the temporary speed using the on-board database 106 and transmits the calculation result to the brake output determination unit 109. The position / speed detection unit 110 transmits the detected head position and train speed of the own train 102 to the ground device 101 via the brake output determination unit 109 and the transmission / reception unit 103.

  The brake output determination unit 109 creates a check speed at the head position using the brake pattern, the temporary speed limit, and the fixed speed limit registered in the on-board database 106, and compares the train speed with the train speed. When the speed is high, a brake output command is transmitted to the acceleration / deceleration device 111. The ground device 101 creates a stop point of each train using the train position sent from each train.

  FIG. 2 shows the relationship between the own train and the preceding train, each speed limit, and each brake pattern. The ground device 101 calculates the stop points 200a and 200b of each train from each train position, and transmits the temporary speed limit 201 and the existing track sections 202a and 202b of each train to the train. At this time, a section in which the own train 102 can travel is a closed section 203a.

  The train control device in the own train 102 develops the fixed speed limit 204 in the on-board database 106 from the standing line section 202a and the stop point 200b sent from the ground, and the brake pattern 205a to those speed limits, 205b is searched and developed from the brake pattern information. Further, a stop pattern 206 that is a brake pattern to the stop point 200b and a brake pattern 207 to the temporary speed limit 201 are calculated using information in the on-board database. The lowest value at the head position of the own train 102 is set as the verification speed 208 for each created brake pattern and speed limit.

  Let A be the number of temporary speed limits 201 that can be transmitted from the ground device 101 to the own train 102. The stop pattern 206 is always calculated up to the maximum speed limit 209. If the processing time at that time is B, the maximum processing time of the brake pattern calculation is given by (A + 1) × B.

It is a schematic block diagram of the train control apparatus which concerns on the form of one Example of this invention. It is an example which shows the relationship between the own train and a preceding train, each speed limit, and each brake pattern.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Command apparatus 101 Ground apparatus 102 Own train 103 Transmission / reception part 104 Train control apparatus 105 Brake pattern information 106 On-board database 107 Brake pattern search part 108 Brake pattern calculation part 109 Brake output determination part 110 Position speed detection part 111 Acceleration / deceleration apparatus 200 Stop point 201 Temporary speed limit 202 Standing section 203 Blocking section 204 Fixed speed limit 205 Brake pattern to fixed speed limit 206 Stop pattern 207 Brake pattern to temporary speed limit 208 Verification speed 209 Maximum speed limit

Claims (2)

Of the train control system including a ground device and an on-board device, the ground device is a stop point that is a position or section information until the ground can travel with respect to the own train, and speed limit information that is temporarily set in the section. A temporary speed limit is transmitted, the on-board device receives the stop point or the temporary speed limit, and the on-board device stores in advance a maximum speed / curve / environment / branch limit etc. From the on-board database in which the fixed speed limit information and the route information such as the gradient, tunnel, and point are registered, the self-train is less than the allowable speed by the fixed speed limit and the temporary speed limit to the stop point. In the train control device that creates a brake pattern for slowing down and automatically activates the brake when the brake pattern is exceeded,
The brake pattern for the fixed speed limit is generated offline by registering previously created information in the on-board database and stored in the on-board device, and the brake pattern up to the stop point and the brake to the temporary speed limit are generated. A train control device characterized in that the pattern is generated on-line by calculating on a constant cycle with an on-board device. Of the train control system including a ground device and an on-board device, the ground device is a stop point that is a position or section information until the ground can travel with respect to the own train, and speed limit information that is temporarily set in the section. A temporary speed limit is transmitted, the on-board device receives the stop point or the temporary speed limit, and the on-board device stores in advance a maximum speed / curve / environment / branch limit etc. From the on-board database in which the fixed speed limit information and the route information such as the gradient, tunnel, and point are registered, the self-train is less than the allowable speed by the fixed speed limit and the temporary speed limit to the stop point. In the train control device that creates a brake pattern for slowing down and automatically activates the brake when the brake pattern is exceeded,
The brake pattern of the fixed speed limit is generated off-line from the on-board database and stored in the on-board apparatus during the initial process of the on-board apparatus, and the stop pattern that is the brake pattern up to the stop point and the temporary speed limit are generated. The train control device is characterized in that on-line generation is performed by calculating the brake pattern of the vehicle at a constant cycle by the on-board device.

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