JPH0630501A - Operation controller for ground primary linear motor traffic system - Google Patents

Abstract

PURPOSE:To provide an operation controller for establishing operational security in ground primary linear motor traffic system by detecting, on the vehicle side, abnormality in normal brake operation executed on the ground side thereby operating emergency brake independently on the vehicle side. CONSTITUTION:A travel controller 16 is disposed on the ground side in order to perform automatic operation based on conditions of preceding vehicle, and the like, and to execute normal brake operation thus decelerating the vehicle to stop at a predetermined point. On the other hand, a speed signal is produced based on the curve of track, conditions of preceding train, and the like, from a ground side unit 1a and transmitted on a loop 2 to a vehicle side unit 1b (emergency brake unit). The vehicle side unit 1b receives the speed signal and creates a limit speed pattern based thereon while a speed generator 13 detects an actual speed and compares the actual speed thus detected with a limit speed. When a ground side control speed, i.e., an actual speed, exceeds the limit speed, abnormality is detected in normal brake operation on the ground side and an emergency brake 15 is actuated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor transportation system in which a vehicle is controlled by a ground primary linear motor to back up by emergency braking on the vehicle side to prevent collisions when abnormal service braking controlled on the ground side occurs. The present invention relates to an operation control device for a ground primary linear motor traffic system that establishes operational safety such as overspeed prevention.

[0002]

2. Description of the Related Art In a traffic system in which a vehicle is propelled by a primary linear motor on the ground, a linear synchronous motor (LSM) is constructed with a stator installed on a track as a primary side and a permanent magnet attached to the vehicle as a secondary side. The vehicle voltage is controlled by supplying variable voltage variable frequency power from the power converter to the stator windings. The power conversion device is installed for each feeding section within a distance range determined in terms of voltage drop, etc. Since one power conversion device can control only one train, only one train can enter one feeding section. It is a closed train operation system that cannot be used. Therefore, when there is a train between the stations, there is usually one train between the stations.
A blockage is set to stop at the station in front of the trailing train section. Fig. 3 shows an example of the structure of the feeder section in the ground primary linear motor transportation system. The stator installed in the orbit is divided into a predetermined distance, and feeder sections 20a, 20b
Is provided, and electric power is supplied from the power converters 21a and 21b to the feeding sections 20a and 20b, respectively. Feeding section 2 in front of feeding section 20b where train 23b is located
When the preceding train 23a is in 0c, the station 2
After stopping at 2b, the last part of the preceding train 23a has left the front feeding section 20c, and the train 23b is ready for departure. As described above, in the terrestrial primary linear motor traffic system, the vehicle is driven on the ground side,
Based on the condition of one train in one feeding section, the electric power conversion device is controlled by the automatic driving device provided on the ground side, so that the vehicle is run or stopped. This stop and deceleration at a curve point, a branch point, etc. of the track are primarily executed by braking with the electric brake of the power converter, but when an abnormality occurs in the electric brake, there is a risk of collision or speed over. Therefore, it is necessary to provide a supplementary braking device separately to ensure braking. This supplementary braking is performed by a mechanical brake provided on the vehicle side in case of an unexpected situation such as the invalidation of the electric brake performed on the ground side.

[0003]

However, in the terrestrial primary linear motor traffic system, the drive system is on the vehicle side like the conventional rotary motor traffic system, and both electric and mechanical brakes can be implemented on the vehicle side. Unlike the above, both the drive system and the operation control system are on the ground side, and in order to compensate the shortage of the electric brake controlled on the ground side by the mechanical brake provided on the vehicle side, the braking shortage detected on the ground side is insufficient. Must be transmitted to the vehicle side. Therefore, there are the following problems, which have been problems in establishing the operational safety of the ground primary linear motor transportation system. (1) The configuration for transmitting information indicating the degree of insufficient braking from the ground side to the vehicle side becomes complicated. (2) It is difficult to use a smooth electric brake and mechanical brake together because there is a delay in information transmission of insufficient braking. (3) There is a problem in reliability of information transmission of insufficient braking, and there is a risk of brake invalidation. The present invention has been devised in view of the above problems, and in a ground primary linear motor traffic system in which an emergency brake is independently actuated by the vehicle in the case of an abnormal normal braking by an electric brake implemented on the vehicle side on the ground side. An object is to provide an operation control device.

[0004]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the means adopted by the present invention is such that the stator laid on the ground side is the primary side, and the permanent magnet mounted on the vehicle side is the secondary side. A primary linear synchronous motor is formed, and a traveling control device that controls the traveling power of the vehicle by controlling the electric power supplied to the stator is provided on the ground side, and the vehicle side is provided when the actual speed exceeds a predetermined speed limit. In an operation control device of a ground primary linear motor traffic system, which is provided with a vehicle security device for independently performing emergency braking, a traveling train in which the vehicle security device is provided on a vehicle side and which is transmitted from a transmission means provided on the ground side. When the speed signal based on the position and the course condition is received, the speed limit pattern generating means generates a predetermined speed limit pattern from the speed signal and the real speed detecting means detects the speed limit pattern. It is configured as an operation control device of a ground primary linear motor traffic system, characterized in that the emergency brake is operated when the actual speed exceeds the speed limit by checking the actual speed and the speed limit by the speed limit pattern. To be done.

[0005]

According to the present invention, a traveling control device is provided on the ground side to perform traveling control based on conditions such as a preceding train, and regular braking is performed to decelerate and stop the vehicle at a predetermined point.
The speed signal such as the 0 code is transmitted to the vehicle side from the transmitting means provided on the ground side. The vehicle receives the speed signal and generates a speed limit pattern based on the speed signal. The actual speed detecting means detects the actual speed and compares it with the speed limit. The actual speed exceeds the speed limit pattern. Occasionally activate the emergency brake. The speed limit pattern decelerates as the vehicle advances from the point where the speed signal changes to the lower side. This is set so that it always exceeds the speed control pattern on the ground side. Therefore, when the actual speed, which should be the traveling speed due to the speed control on the ground side, exceeds the speed limit indicated by the speed limit pattern, the abnormal braking of the service braking occurs. Can be detected. Therefore, when an abnormality in the service braking is detected, the emergency braking is operated to back up the service braking, and operational safety is established in case of an unexpected situation such as the expiration of the service braking.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings for the understanding of the present invention. The following embodiments are examples of embodying the present invention and do not limit the technical scope of the present invention. FIG. 1 is a block diagram showing the configuration of the operation control device of the ground primary linear motor transportation system according to the embodiment of the present invention, and FIG. 2 is a graph for explaining the operation of the onboard security device according to the embodiment.
The overall configuration of the ground primary linear motor transportation system in this embodiment is the same as that shown in FIG. 3 in the prior art, and the stator laid on the ground side is attached to the primary side and the vehicle permanently. A terrestrial primary linear synchronous motor is formed with the magnet as the secondary side, the stator constitutes a divided feeding section, and power of a variable voltage variable frequency is supplied from the power converter to each feeding section. It is configured to propel a vehicle existing in the feeder section.
In addition, in the following description, the vehicle is referred to as a train as a plurality of vehicles are connected and operated. In Figure 1,
The operation control device 1 includes a ground side device 1a arranged on the ground side and a vehicle side device 1b arranged on the vehicle side. Also, a loop 2 is provided for each predetermined section in the track,
A communication line is formed for detecting the presence of a train by electromagnetic induction and transmitting a signal from the ground-side device 1a to the vehicle-side device 1b by electromagnetic induction. The ground-side device 1a is provided with a train detection device 3 to which train on-track information from the loop 2 is input and an interlock device 4 to which route information such as track branching is input. Outputs of 3 and the interlocking device 4 are input to the speed code selecting device 5 and the automatic driving device 7. The speed code selection device 5 selects a speed code for a predetermined section based on the on-rail information and the route information, and outputs a speed signal from the transmitter 6 to the loop 2 of the predetermined section. In addition, the automatic driving device 7 controls the power conversion device 8 that supplies electric power to the stator 9 in a predetermined feeding section, and based on the on-rail information and the route information, the stop control by the regular braking is performed as necessary. Control the running of the train. The automatic driving device 7 and the power conversion device 8 constitute a travel control device 16. On the other hand, the vehicle-side device 1b constitutes the on-board security device 17, and when the speed signal from the ground-side device 1a transmitted from the loop 2 is received by the receiver 10, the speed limit pattern generator 11 causes the speed limit. Generate a pattern. As shown in FIG. 2, the speed limit pattern is a speed pattern in which the speed decreases from the point where the speed signal changes to the lower side according to the traveling distance of the train.
It is set in advance so that the speed limit is always higher than the automatic operation speed pattern of the train whose speed is controlled by 6. This speed limit pattern is input to the speed checking device 12 and checked against the actual speed detected by the speed generator 13 (actual speed detecting means) provided in the train. The actual speed has the automatic operation speed pattern (operating curve) shown in Fig. 2 when the ground side control is operating normally. Therefore, the actual speed can be set only when an abnormality occurs in the ground side normal braking. Will exceed the speed limit pattern. Therefore, the speed generator 1
When the actual speed detected by 3 exceeds the speed limit pattern, the speed checking device 12 outputs an operation signal for emergency braking to the emergency brake 15, so that the mechanical brake operates and the emergency braking that backs up the service braking is performed. It

[0007]

As described above, according to the present invention, the traveling control device is provided on the ground side to perform traveling control by the speed signal based on the condition of the preceding train or the like, and the regular braking is performed to bring the vehicle to a predetermined point. While decelerating and stopping at, the speed signal is transmitted from the transmitting means provided on the ground side to the vehicle side. The vehicle receives the speed signal and generates a speed limit pattern based on the speed signal. The actual speed detecting means detects the actual speed and compares it with the speed limit. The actual speed exceeds the speed limit pattern. Sometimes activate the emergency brake. The speed limit pattern decelerates as the vehicle advances from the point where the speed signal changes to the lower side. This is set so that it always exceeds the speed control pattern on the ground side. Therefore, when the actual speed, which should be the traveling speed due to the speed control on the ground side, exceeds the speed limit indicated by the speed limit pattern, the abnormal braking of the service braking occurs. Can be detected. Therefore,
A primary ground linear motor traffic system that establishes operational safety in case of an unexpected situation such as the expiration of service braking by backing up service braking by operating the emergency brake when the vehicle detects its own service braking abnormality. The operation control device can be provided.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a configuration of a driving safety system of a ground primary linear motor transportation system according to an embodiment of the present invention.

FIG. 2 is a graph for explaining the operation of the onboard safety system according to the embodiment.

FIG. 3 is a schematic diagram showing a feeder system and a signal display of a ground primary transportation system.

[Explanation of symbols]

 1a--Ground side device of operation control device 1b--Vehicle side device of operation control device 2--loop (transmission means) 5 ---- speed code selection device 6 ------- transmitter (transmission means) 7-- ─Automatic operation device 8 ──Power converter 9 ──Stator 10 ──Receiver 11 ── Speed limit pattern generator 12 ── Speed checking device 13 ── Speed generator (actual speed detection 15) ─── Emergency brake 16 ─── Travel control device 17 ─── On-board safety device

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location H04Q 9/00 301 B 7170-5K

Claims (1)

[Claims] 1. A ground primary linear synchronous motor is formed by using a stator laid on the ground side as a primary side and a permanent magnet mounted on a vehicle side as a secondary side to supply electric power to the stator on the ground side. Primary linear motor traffic on the ground, which is provided with a traveling control device for controlling the traveling of the vehicle, and also with an on-board safety device for independently performing emergency braking on the vehicle side when the actual speed exceeds a predetermined control speed. In the operation control device of the system, when the on-board security device is provided on the vehicle side and a speed signal based on the preceding train position and the course condition transmitted from the transmission means provided on the ground side is received, a speed limit pattern is generated. Means for generating a predetermined speed limit pattern from the speed signal, and checking the actual speed detected by the actual speed detecting means and the speed limit by the speed limit pattern, The actual speed is configured to operate the emergency brakes when exceeded the speed limit operation control device for a ground primary linear motor transport system according to claim.