WO2010058458A1 - Brake control device for railroad rolling stock - Google Patents

Brake control device for railroad rolling stock Download PDF

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Publication number
WO2010058458A1
WO2010058458A1 PCT/JP2008/071038 JP2008071038W WO2010058458A1 WO 2010058458 A1 WO2010058458 A1 WO 2010058458A1 JP 2008071038 W JP2008071038 W JP 2008071038W WO 2010058458 A1 WO2010058458 A1 WO 2010058458A1
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WO
WIPO (PCT)
Prior art keywords
brake
housing
control device
controller
brake control
Prior art date
Application number
PCT/JP2008/071038
Other languages
French (fr)
Japanese (ja)
Inventor
康晴 板野
洋史 山田
悦司 松山
秀雄 阪井
康司 来村
淳 味地
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2010539069A priority Critical patent/JP5220124B2/en
Priority to PCT/JP2008/071038 priority patent/WO2010058458A1/en
Publication of WO2010058458A1 publication Critical patent/WO2010058458A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components

Definitions

  • the present invention relates to a railway vehicle brake control device that controls the braking force applied to the wheel shaft of a railway vehicle by changing the air pressure supplied to and discharged from the brake cylinder, and in particular, includes a brake controller and a brake air damper.
  • the present invention relates to a technology for reducing the size of a brake control device for a railway vehicle having a structure that is housed in a housing.
  • Railway vehicle brake control devices generally include a brake controller that outputs a brake command signal (electrical signal), a solenoid valve that outputs a brake command pressure (air pressure) corresponding to the brake command signal, and a brake cylinder A pressure sensor for detecting the pressure of the air; and a brake air conditioner that performs capacity amplification using the brake command pressure output from the solenoid valve as a control pressure and outputs the pressure to the brake cylinder (for example, Patent Document 1). reference).
  • Conventional railroad vehicle brake control devices have a large number of solenoid valves to supply and discharge air at an optimal pressure to the brake cylinders in order to generate the necessary braking force. Because the brake controller is located above the solenoid valve, the brake controller must first be removed during maintenance of the solenoid valve, and when the brake controller is removed, it is installed between the brake air Therefore, there is a problem that the wiring needs to be removed and the maintenance work becomes complicated.
  • the conventional brake controller is roughly divided into two types, that is, a board type 201 that removes boards one by one from the apparatus and a rack type 202 that can be taken out as a unit from the apparatus. .
  • the board type 201 is provided with various control calculation boards, and individual signal wirings are connected to the board.
  • a substrate type one or more signals are input on one substrate, processed and output.
  • the board type has no particular restriction on the card board size, it is possible to increase the card board size to consolidate the functions. However, if the card substrate size is too large, problems such as distortion will occur.
  • the frame rack for storing the board is provided with a card according to the application such as a control calculation card, various input / output cards, and a power supply card.
  • a card according to the application such as a control calculation card, various input / output cards, and a power supply card.
  • the size of the card substrate stored in the frame rack is limited.
  • rack types for standardization there are many rack types for standardization.
  • ⁇ Wiring for distributing external signals is connected to the front panel or back panel of various I / O cards. Normally, a signal distributed between a solenoid valve and a pressure sensor is first received by a relay cable at a relay terminal, and a signal between the relay terminal and the card board is relayed by a collective cable having a connector terminal.
  • the railway vehicle brake control device since the railway vehicle brake control device is installed in the lower part of the train, the maintenance work has to go under the train, crouch down and work in a narrow space, so the work efficiency is low.
  • JP 2000-272501 A Japanese Patent Laid-Open No. 9-9424
  • the present invention has been made in view of the above, and an object of the present invention is to obtain a railway vehicle brake control device that is compact and improves maintainability.
  • the railway vehicle brake control apparatus of the present invention controls the braking force applied to the wheel shaft of the railway vehicle by varying the air pressure supplied to and discharged from the brake cylinder.
  • a brake controller that outputs a brake command signal, an electromagnetic valve that outputs a brake command pressure corresponding to the brake command signal, a pressure sensor that detects an air pressure supplied to a brake cylinder, and an electromagnetic valve
  • the brake air controller that supplies the brake cylinder with compressed air regulated using the brake command pressure output from the brake as well as the brake controller, solenoid valve, and pressure sensor, and supports the brake air
  • a box-shaped casing disposed in the lower part of the vehicle, extending along the inner surface of the casing at the back of the casing, and each device and vehicle outfitting phase stored in the casing Motherboard that relays the signal line is provided between a plurality of wiring patterns for distributing relay signal on the motherboard are formed.
  • the mother board is provided in the inner part of the casing that extends along the inner surface of the casing, and relays the signal wiring between the brake idler, the brake controller, and the vehicle equipment. Since a plurality of wiring patterns for distributing relay signals are formed on this motherboard, the arrangement space can be used effectively and the wiring can be reduced as much as possible. Accordingly, in the maintenance work, the soundness check work of the signal cable and the relay terminal, such as the wiring check work and the disconnection check work, is simplified, and the maintainability can be improved. Moreover, the fact that wiring can be reduced as much as possible contributes to the simplification and efficiency of the assembly work and manufacturing test work of the brake control device. Further, the space for the relay terminal is not required, and the brake control device can be reduced in size.
  • a first connector provided on the rear surface of the brake controller, a second connector provided on the cable end extending to the electromagnetic valve, and a third connector provided on the cable end extending to the pressure sensor are provided on the motherboard. Since the fourth connector provided on the connecting means that is connected to the front surface and extends to the vehicle outfit is connected to the back surface or side surface of the motherboard, it is easy to attach and remove the wiring, especially when removing the brake controller. Maintenance work can be improved because it is not necessary to remove the wiring from the brake air control unit and the vehicle equipment.
  • the brake controller can be slid and removed from the housing by the guide structure provided on the housing, and the first connector is directly connected to the motherboard at the storage position where it is inserted all the way into the housing. Therefore, it is possible to pull out the brake controller from the housing when checking the brake controller, and at the same time, the connector connection can be removed by this pulling operation, and the brake controller is attached to the railway vehicle. Maintenance work efficiency can be improved even in the state where
  • the sharing of the motherboard, the connector connection on the front and back sides, and the slide drawer mechanism of the brake controller can be combined to provide higher maintainability compared to the conventional brake control device.
  • a lever means is further provided in the casing of the brake control device, and this action is performed by pushing and pulling the lever means so that the brake controller can be pulled out with a small force.
  • the brake controller can be easily pulled out and removed during maintenance work in a state where it is mounted on a railway vehicle.
  • an opening / closing lid for closing the opening of the housing is provided, and the opening / closing lid is pivotally supported by a hinge mechanism provided at the top, and is configured to open / close with the hinge mechanism as a rotation center.
  • an open / close lid By providing an open / close lid, devices such as brake controllers, solenoid valves, and pressure sensors inside the brake control device can be protected.
  • the opening / closing lid can be easily opened upward, and the state of the internal device can be confirmed.
  • the cover constituting the outer shell of the device can be removed by loosening the upper nut (fixing tool) disposed on the top plate of the casing, and the brake controller and the brake air damper can be disassembled into two parts. .
  • the brake controller and the brake air controller can be disassembled into two parts, and the maintainability of the brake air controller in a state where it is mounted on a railway vehicle can be improved.
  • the ability to disassemble the brake controller and brake air brake into two parts allows the brake control device to be used from the vehicle outfitting not only in the case of brake air brake failure but also during periodic inspection of the brake controller, solenoid valve and pressure sensor. There is an advantage that the inspection can be performed without removing it.
  • the brake control device for a railway vehicle of the present invention can be made compact by minimizing the cable wiring in the device, and also allows the connector connection on the motherboard and the brake controller to be pulled out by the guide structure, thereby controlling the brake. There is an effect that the removal of the board in the machine and the brake controller itself can be easily taken out, and the maintenance work efficiency is improved in a state where the brake control device is attached to the railway vehicle.
  • the brake controller can be miniaturized and the utility of the equipment can be improved.
  • FIG. 1 is a schematic configuration diagram of a brake control device.
  • FIG. 2-1 is an external view of the brake control device.
  • FIG. 2-2 is an external view of the brake control device in a state where the housing is transparent.
  • FIG. 3 is an explanatory diagram of the structure of the brake control device.
  • FIG. 4 is a flowchart of maintenance work at the time of failure of the brake control device.
  • FIG. 5A is an explanatory diagram of opening / closing of the opening / closing lid and sliding of the brake controller.
  • FIG. 5B is a configuration diagram in which one motherboard is arranged.
  • FIG. 5C is a structural diagram of the hinge mechanism.
  • FIG. 5-4 is an explanatory diagram of the removal of the housing.
  • FIG. 5-5 is a configuration diagram in which two motherboards are arranged.
  • FIG. 5-5 is a configuration diagram in which two motherboards are arranged.
  • FIG. 6 is a structural diagram of the lever means.
  • FIG. 7 is an explanatory diagram of equipment mounted on a railway vehicle.
  • FIG. 8A is a schematic configuration diagram illustrating an example of a conventional brake control device.
  • FIG. 8-2 is a schematic configuration diagram illustrating another example of a conventional brake control device.
  • FIG. 1 is a schematic configuration diagram showing an embodiment of a railway vehicle brake control device according to the present invention.
  • 2 is an external view of the railway vehicle brake control device
  • FIG. 2A is an external view of the railway vehicle brake control device
  • FIG. 2B is a state where the cover of the railway vehicle brake control device is transparent. Is shown.
  • a railway vehicle brake control device (hereinafter simply referred to as a brake control device) 1 controls the braking force applied to the wheel shaft of the railway vehicle by varying the air pressure supplied to and discharged from a brake cylinder (not shown).
  • the brake control device 1 includes a brake controller 2 that outputs a brake command signal (electric signal), an electromagnetic valve 6 that outputs a brake command pressure (air pressure) corresponding to the brake command signal, and an air pressure supplied to the brake cylinder.
  • a pressure sensor 7 to detect, a brake air release device 5 for supplying compressed air adjusted with a brake command pressure output from the solenoid valve 6 as a control pressure, a brake controller 2, a solenoid valve 6 and a pressure sensor 7 and a box-shaped housing 10 disposed below the railway vehicle to support the brake air damper 5.
  • the housing 10 is configured to include a cover 10a constituting an outer shell of the apparatus, an opening / closing lid 10b for closing the front opening of the cover 10a, and a post in the housing (not shown).
  • a plurality of rectangular flat brake controllers 2 are provided in the housing 10.
  • a mother board 8 is disposed in parallel with the inner surface of the housing at the back of the housing 10 (on the side facing the cover 10a).
  • an in-housing post 10 c (not shown) that supports the housing 10 from the railway vehicle is provided, and a cover 10 a is fixed to the in-housing post 10 c on the top surface of the housing 10.
  • An upper nut (fixing tool) 14 is provided.
  • the brake air conditioner 5 is supported and fixed to the lower part of the housing 10 by a support post 10c in the housing.
  • a connector 4 provided as connection means extending to the vehicle outfitting side protrudes from the rear surface of the housing 10.
  • FIG. 3 is an explanatory diagram of the structure of the brake control device viewed from the side.
  • 3A to 3E show structural features of the brake control device of the present invention.
  • the first feature A is that an opening / closing lid is attached so that the brake controller can be taken out.
  • the second feature B is that a hinge mechanism is attached so that the open / close lid can be opened and closed, and the removal of the open / close lid is unnecessary.
  • the third feature C is that the lever means and the slide rail mechanism (guide structure) are provided to facilitate the removal and attachment of the brake controller.
  • the fourth feature D is that the casing can be removed by loosening the upper nut.
  • the fifth feature E is that a mother board in which the connection of the brake controller, the brake air brake, and the vehicle equipment is integrated is provided.
  • the brake control device of the present invention detects a failure of the brake control device (step S1). Since the first feature A and the second feature B are provided, the LED display of the brake controller can be confirmed by simply opening the opening / closing lid without removing the brake control device. That is, in consideration of the place where the opening / closing lid is placed, a hinge mechanism is provided at the upper part of the brake control device, so that the removal of the opening / closing lid is not required and the working efficiency is improved.
  • step S2 After opening the open / close lid (step S2).
  • a failure display content is determined by confirming the LED display state of the brake controller inside (step S3). That is, it is determined which of the failure of the substrate, the solenoid valve, and the pressure sensor is based on the LED display state of the brake controller. If the cause of failure cannot be identified and analysis of the cause of failure is necessary, the brake controller itself is removed (step S4). Then, the brake controller or the brake air control unit is investigated (step S5).
  • the lever means and the slide rail mechanism which are the third feature C, are provided so that the brake controller can be pulled out from the housing in which the brake controller is housed.
  • the brake controller can be pulled out from the housing, and the brake controller can be easily removed even when the brake control device is attached to the railway vehicle.
  • step S6 If it is determined that the motherboard of the brake controller is out of order based on the LED display state of the brake controller, only the motherboard of the brake controller can be taken out (step S6). Then, the mother board is investigated (step S7).
  • the nut arranged on the casing top plate of the brake control device is provided with the fourth feature D.
  • the casing, the opening / closing lid, and the left and right side covers can be removed by removing from the casing top plate (step S8). Since the brake controller itself can be pulled out, it is possible to secure work spaces on the upper and side surfaces of the solenoid valve and pressure sensor, and to efficiently investigate and replace the solenoid valve and pressure sensor (step S9). ).
  • the brake control device is miniaturized and can be easily removed.
  • the brake control device 1 of the first embodiment is a railroad vehicle brake control device that controls the braking force applied to the wheel shaft of the railcar by changing the air pressure supplied to and discharged from the brake cylinder as described above.
  • a brake controller 2 that outputs a signal, an electromagnetic valve 6 that outputs a brake command pressure corresponding to the brake command signal, a pressure sensor 7 that detects air pressure supplied to the brake cylinder, and a brake command that the electromagnetic valve 6 outputs
  • a box-shaped housing 10 disposed in the lower part of the vehicle.
  • the brake air damper 5, the electromagnetic valve 6, and the pressure sensor 7 constitute a brake air damper.
  • An air supply / exhaust unit 9 is provided on the rear surface of the brake air damper 5.
  • the housing 10 has a cover 10a whose front opening is closed with an opening / closing lid 10b, and a support post 10c provided inside the cover 10a.
  • a plurality of rectangular flat brake controllers 2 are provided in the casing 10 in a direction perpendicular to the paper surface of FIGS. 5A and 5B.
  • a mother board 8 is disposed in parallel along the inner surface on the back side.
  • the brake air conditioner 5 is supported and fixed to the lower part of the housing 10 by a support post 10c in the housing.
  • a connector 4 provided as connection means extending to the vehicle outfitting side protrudes from the rear surface of the housing 10.
  • the brake control device 1 has the following features (1) to (3).
  • the interior of the rectangular box-shaped housing 10 extends along the inner surface of the housing, and the brake air brake 5, the brake controller 2, and a vehicle equipment (not shown)
  • a mother board 8 for relaying signal wirings between them is provided, and a plurality of wiring patterns for distributing relay signals are formed on the mother board 8.
  • a third connector 7a provided at the end of the cable extending to (a second connector and a third connector are combined into a single connector 7a) is connected to the front surface of the mother board 8, so that The 4th connector 4 provided in the extending connection means is connected to the back surface of the motherboard 8 (the 4th connector 4 may be connected to the side surface of the motherboard 8).
  • the brake controller 2 can be inserted into and removed from the housing 10 by a slide rail (guide structure) 13 provided in the housing 10.
  • the first connector 2a is directly connected to the mother board 8 at the stored position.
  • the cover 10a can be removed upward by loosening the upper nut 14 (fixing tool).
  • the in-housing post 10c that has supported the brake emptying device 5, the brake controller 2 attached to the in-housing post 10c, and the in-housing post 10c below the brake controller 2.
  • the brake air damper 5 that is fixed, the pressure sensor 7 and the electromagnetic valve 6 that are disposed on the upper surface of the unit of the brake air damper 5 are exposed.
  • the brake controller 2 can be pulled out by using a slide rail (not shown) with respect to the support column 10c in the housing, the space between the unit of the brake controller 2 and the unit of the brake air conditioner 5 is narrow. In both cases, maintenance work such as replacement and inspection of the electromagnetic valve 6 and the pressure sensor 7 can be performed efficiently.
  • Fig. 5-3 shows the hinge mechanism.
  • the casing 10 (cover 10a) and the upper part of the opening / closing lid 10b are connected by a hinge 12, so that the opening / closing lid 10b can be opened and closed. At that time, it can be opened and closed in multiple stages depending on the type of hinge.
  • a flat torque hinge is used.
  • Fig. 5-5 shows the case where there are two motherboards shared.
  • the two mother boards 8a and 8b are connected to each other by a connector cable.
  • FIG. 6 is a structural diagram of lever means of the second embodiment.
  • a card plastic 21 is attached to the brake controller 2 side, and a support 22 is attached in the housing.
  • the support 22 in the housing is pushed (in the direction of the arrow b), and the lever action works to pull out the brake controller 2 with a small force. In this way, the brake controller 2 is pulled out by pushing and pulling the lever.
  • the railway vehicle brake control apparatus is used not only for the railway vehicle brake control apparatus but also other railway vehicle-mounted equipment (ATC / ATS / TIMS / VVVF / SIV / MONITOR, etc.) as shown in FIG. ).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Regulating Braking Force (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

A brake control device for a railroad rolling stock is compact in size and allows a brake controller, a pressure sensor, and a solenoid valve to be easily removed from the device when the device is maintained. The brake control device (1) has a brake controller (2), a solenoid valve (6), a pressure sensor (7), and a box-like housing (10) for receiving the elements (2, 6, 7), supporting a brake air controller (5), and arranged at the lower part of the railroad rolling stock. A mother board (8) for relaying signal lines between equipment of the rolling stock and the elements contained in the housing is provided at the deep end in the housing (10) so as to extend along the inner surface thereof.

Description

鉄道車輌用ブレーキ制御装置Brake control device for railway vehicles
　本発明は、ブレーキシリンダに給排する空気圧力を可変して鉄道車輌の車輪軸に加える制動力を制御する鉄道車輌用ブレーキ制御装置に関するものであり、特にブレーキ制御器とブレーキ空制器とを筐体内に収納する構造を有する鉄道車輌用ブレーキ制御装置において、コンパクト化を図る技術に関するものである。 The present invention relates to a railway vehicle brake control device that controls the braking force applied to the wheel shaft of a railway vehicle by changing the air pressure supplied to and discharged from the brake cylinder, and in particular, includes a brake controller and a brake air damper. The present invention relates to a technology for reducing the size of a brake control device for a railway vehicle having a structure that is housed in a housing.
　鉄道車輌用ブレーキ制御装置は、一般的にブレーキ指令信号（電気信号）を出力するブレーキ制御器と、そのブレーキ指令信号に応じたブレーキ指令圧（空気圧）を出力する電磁弁と、ブレーキシリンダ内の空気の圧力を検出するための圧力センサと、電磁弁が出力するブレーキ指令圧を制御圧とし容量増幅を行ってブレーキシリンダに出力するブレーキ空制器とを有している（例えば、特許文献１参照）。 Railway vehicle brake control devices generally include a brake controller that outputs a brake command signal (electrical signal), a solenoid valve that outputs a brake command pressure (air pressure) corresponding to the brake command signal, and a brake cylinder A pressure sensor for detecting the pressure of the air; and a brake air conditioner that performs capacity amplification using the brake command pressure output from the solenoid valve as a control pressure and outputs the pressure to the brake cylinder (for example, Patent Document 1). reference).
　従来の鉄道車輌用ブレーキ制御装置は、必要なブレーキ力を発生させる為にブレーキシリンダに対して最適な圧力の空気を給排するため多数の電磁弁を有しており、一般には、これら多数の電磁弁の上方にブレーキ制御器が配置されているため、電磁弁のメンテナンス時にはまずブレーキ制御器を取り外さなければならず、さらにブレーキ制御器を取り外す際にはブレーキ空制器との間に設けられた配線の取り外しが必要となり、メンテナンス作業が煩雑なものとなるという問題がある。 Conventional railroad vehicle brake control devices have a large number of solenoid valves to supply and discharge air at an optimal pressure to the brake cylinders in order to generate the necessary braking force. Because the brake controller is located above the solenoid valve, the brake controller must first be removed during maintenance of the solenoid valve, and when the brake controller is removed, it is installed between the brake air Therefore, there is a problem that the wiring needs to be removed and the maintenance work becomes complicated.
　かかるメンテナンス作業の煩雑さについて説明する。従来のブレーキ制御器には、例えば図８－１および図８－２に示すように、大別して基板を１枚ずつ装置から取り外す基板タイプ２０１と、装置からユニットとして取り出せるラックタイプ２０２の２通りある。基板タイプ２０１のものは、各種の制御演算基板が備えられ、個々の信号配線が基板に接続される。基板タイプの場合、１つ乃至複数の信号を１つの基板で入力し演算処理をして出力する。メンテナンス作業時は、個々の基板の健全性のために、多数の基板の抜き差しを実施する。基板タイプのものはカード基板サイズの制約が特にないことから、カード基板サイズを大きくして機能を集約させることも可能である。但し、カード基板サイズが大きすぎるとゆがみ等の問題が生じることになる。 Explain the complexity of such maintenance work. For example, as shown in FIGS. 8-1 and 8-2, the conventional brake controller is roughly divided into two types, that is, a board type 201 that removes boards one by one from the apparatus and a rack type 202 that can be taken out as a unit from the apparatus. . The board type 201 is provided with various control calculation boards, and individual signal wirings are connected to the board. In the case of a substrate type, one or more signals are input on one substrate, processed and output. During maintenance work, a large number of substrates are inserted and removed for the soundness of individual substrates. Since the board type has no particular restriction on the card board size, it is possible to increase the card board size to consolidate the functions. However, if the card substrate size is too large, problems such as distortion will occur.
　また、ラックタイプ２０２のブレーキ制御器の場合には、基板を収納するフレームラックに制御演算カード、各種入出力カード、電源カードなど用途に応じたカードが備えられている。ラックタイプの場合、フレームラックに収納するカード基板には大きさに制約がある。現在は、標準化のためにラックタイプが多いといった状況である。 Further, in the case of the rack type 202 brake controller, the frame rack for storing the board is provided with a card according to the application such as a control calculation card, various input / output cards, and a power supply card. In the case of the rack type, the size of the card substrate stored in the frame rack is limited. Currently, there are many rack types for standardization.
　各種入出力カードの前面パネル若しくは背面パネルに、外部信号（例えば、電磁弁への出力信号、圧力センサからの入力信号）を分配するための配線が接続される。通常、電磁弁や圧力センサとの間で分配する信号については、まず中継端子で配線ケーブルを受け、中継端子とカード基板の間の信号についてはコネクタ端子を有する集合ケーブルにて中継する。 ∙ Wiring for distributing external signals (for example, output signals to solenoid valves, input signals from pressure sensors) is connected to the front panel or back panel of various I / O cards. Normally, a signal distributed between a solenoid valve and a pressure sensor is first received by a relay cable at a relay terminal, and a signal between the relay terminal and the card board is relayed by a collective cable having a connector terminal.
　メンテナンス作業時は、カードの健全性、コネクタ端子の健全性、中継端子の健全性、取り合う配線信号ケーブルの健全性を確認すべく、カードの前面パネルからコネクタ端子の取り外し、フレームラックからカードの抜き差し、中継端子間の短絡、配線誤りチェックなど実施する。 During maintenance work, remove the connector terminals from the front panel of the card and insert / remove the card from the frame rack to check the soundness of the card, the soundness of the connector terminals, the soundness of the relay terminals, and the soundness of the wiring signal cables to be handled. Implement short circuit between relay terminals, wiring error check, etc.
　また、鉄道車輌用ブレーキ制御装置は、列車の下部に設置されるため、メンテナンス作業は、列車の下に潜り込んで、しゃがみ込み狭いスペースで作業しなければならないため、作業効率が低かった。 Also, since the railway vehicle brake control device is installed in the lower part of the train, the maintenance work has to go under the train, crouch down and work in a narrow space, so the work efficiency is low.
　一方、電磁弁のメンテナンス時にブレーキ制御器を取り外さなくてもよいように、図８－１のようにブレーキ制御器２０１を電磁弁４０１の側方に配置した場合には、ブレーキ制御装置自体が大型化するという問題がある。 On the other hand, when the brake controller 201 is arranged on the side of the electromagnetic valve 401 as shown in FIG. 8A so that the brake controller does not have to be removed during maintenance of the electromagnetic valve, the brake control device itself is large. There is a problem of becoming.
　また、配電盤などの制御盤の設置スペース，作業スペースを小さくし、保守作業の効率向上を図る技術として、図８－２のように制御盤に収納される機器（２０２，３０２，４０２，５０２）を複数のユニットに分割しそれぞれを収納した引き出しまたは着脱可能する技術が知られている（例えば、特許文献２参照）。 In addition, as a technique for reducing the installation space and work space of a control panel such as a switchboard and improving the efficiency of maintenance work, devices (202, 302, 402, 502) housed in the control panel as shown in FIG. There is known a technique in which a unit is divided into a plurality of units and each of the units is stored in a drawer or detachable (see, for example, Patent Document 2).
特開２０００－２７２５０１号公報JP 2000-272501 A 特開平９－９４２４号公報Japanese Patent Laid-Open No. 9-9424
　上述したように、ブレーキ制御器を取り外す際にはブレーキ空制部との配線の取り外しが必要となり、メンテナンス作業が煩雑なものとなるという問題がある。またメンテナンス性を考慮した配置設計とすると、ブレーキ制御装置自体が大きくなる問題がある。 As described above, when removing the brake controller, it is necessary to remove the wiring from the brake idler, and there is a problem that the maintenance work becomes complicated. In addition, if the layout design is designed in consideration of maintainability, there is a problem that the brake control device itself becomes large.
　本発明は、上記に鑑みてなされたものであって、コンパクト化を図ると共にメンテナンス性を向上する鉄道車輌用ブレーキ制御装置を得ることを目的とする。 The present invention has been made in view of the above, and an object of the present invention is to obtain a railway vehicle brake control device that is compact and improves maintainability.
　上述した課題を解決し、目的を達成するために、本発明の鉄道車輌用ブレーキ制御装置は、ブレーキシリンダに給排する空気圧力を可変して鉄道車輌の車輪軸に加える制動力を制御する鉄道車輌用ブレーキ制御装置において、ブレーキ指令信号を出力するブレーキ制御器と、ブレーキ指令信号に応じたブレーキ指令圧を出力する電磁弁と、ブレーキシリンダに供給する空気圧力を検出する圧力センサと、電磁弁が出力するブレーキ指令圧を制御圧として調圧された圧縮空気をブレーキシリンダに供給するブレーキ空制器と、ブレーキ制御器、電磁弁及び圧力センサを収納すると共にブレーキ空制器を支持して鉄道車輌の下部に配設された箱状の筐体とを備え、筐体の奥に筐体内面に沿って延在し、筐体内に収納された各機器及び車輌艤装相互間の信号配線の中継を行うマザーボードが設けられ、マザーボード上に中継信号を振り分ける複数の配線パターンが形成されている。 In order to solve the above-described problems and achieve the object, the railway vehicle brake control apparatus of the present invention controls the braking force applied to the wheel shaft of the railway vehicle by varying the air pressure supplied to and discharged from the brake cylinder. In a vehicle brake control device, a brake controller that outputs a brake command signal, an electromagnetic valve that outputs a brake command pressure corresponding to the brake command signal, a pressure sensor that detects an air pressure supplied to a brake cylinder, and an electromagnetic valve The brake air controller that supplies the brake cylinder with compressed air regulated using the brake command pressure output from the brake as well as the brake controller, solenoid valve, and pressure sensor, and supports the brake air A box-shaped casing disposed in the lower part of the vehicle, extending along the inner surface of the casing at the back of the casing, and each device and vehicle outfitting phase stored in the casing Motherboard that relays the signal line is provided between a plurality of wiring patterns for distributing relay signal on the motherboard are formed.
　この発明によれば、筐体の奥に筐体内面に沿って延在し、ブレーキ空制部、ブレーキ制御器、及び車輌艤装相互間の信号配線の中継を行うマザーボードが設けられている。そして、このマザーボード上に中継信号を振り分ける複数の配線パターンが形成されているので、配置スペースが有効に利用されるとともに、配線を極力少なくすることが可能となる。これにともない、メンテナンス作業において、配線チェック作業、断線確認作業など、信号ケーブル、中継端子の健全性確認作業が簡素化され、メンテナンス性を向上できる。また、配線を極力少なくできることは、ブレーキ制御装置の組立て作業、製造試験作業の簡便化、効率化に寄与することにもなる。また、中継端子スペースが不要となりブレーキ制御装置の小型化を図ることができる。 According to the present invention, the mother board is provided in the inner part of the casing that extends along the inner surface of the casing, and relays the signal wiring between the brake idler, the brake controller, and the vehicle equipment. Since a plurality of wiring patterns for distributing relay signals are formed on this motherboard, the arrangement space can be used effectively and the wiring can be reduced as much as possible. Accordingly, in the maintenance work, the soundness check work of the signal cable and the relay terminal, such as the wiring check work and the disconnection check work, is simplified, and the maintainability can be improved. Moreover, the fact that wiring can be reduced as much as possible contributes to the simplification and efficiency of the assembly work and manufacturing test work of the brake control device. Further, the space for the relay terminal is not required, and the brake control device can be reduced in size.
　また、ブレーキ制御器の背面に設けられた第１のコネクタ、および電磁弁に延びるケーブル端に設けられた第２のコネクタ及び圧力センサに延びるケーブル端に設けられた第３のコネクタが、マザーボードの前面に接続され、車輌艤装に延びる接続手段に設けられた第４のコネクタがマザーボードの背面或いは側面に接続されているので、配線の取り付け取り外し作業が容易となり、特にブレーキ制御器を取り外す際に、ブレーキ空制部および車輌艤装との配線の取り外し作業が不要とできることからメンテナンス性を向上できるのである。 In addition, a first connector provided on the rear surface of the brake controller, a second connector provided on the cable end extending to the electromagnetic valve, and a third connector provided on the cable end extending to the pressure sensor are provided on the motherboard. Since the fourth connector provided on the connecting means that is connected to the front surface and extends to the vehicle outfit is connected to the back surface or side surface of the motherboard, it is easy to attach and remove the wiring, especially when removing the brake controller. Maintenance work can be improved because it is not necessary to remove the wiring from the brake air control unit and the vehicle equipment.
　さらに、ブレーキ制御器は、筐体に設けられた案内構造により、スライドさせて筐体から抜き差し可能とされ、筐体の奥まで差し込まれた収納位置にて、第１のコネクタをマザーボードに直接接続させるので、ブレーキ制御器の点検の際にブレーキ制御器を筐体から引き出すことが可能であるとともに、この引き出す動作により同時にコネクタ接続の取り外し作業も行うことができ、鉄道車輌にブレーキ制御装置が取り付いた状態でも、メンテナンス作業効率を向上できる。 In addition, the brake controller can be slid and removed from the housing by the guide structure provided on the housing, and the first connector is directly connected to the motherboard at the storage position where it is inserted all the way into the housing. Therefore, it is possible to pull out the brake controller from the housing when checking the brake controller, and at the same time, the connector connection can be removed by this pulling operation, and the brake controller is attached to the railway vehicle. Maintenance work efficiency can be improved even in the state where
　すなわち、マザーボードの共有化、前面及び背面でのコネクタ接続、ブレーキ制御器（基板タイプ、ラックタイプ双方）のスライド引き出し機構が相まって、従来のブレーキ制御装置と比べ、高いメンテナンス性を提供できることとなる。 That is, the sharing of the motherboard, the connector connection on the front and back sides, and the slide drawer mechanism of the brake controller (both board type and rack type) can be combined to provide higher maintainability compared to the conventional brake control device.
　ここで、ブレーキ制御装置の筐体内にレバー手段を更に備え、当該レバー手段の押し引き動作によりてこの作用が働いて、ブレーキ制御器の引き出しが小さな力で行える構成とされることが好ましい。 Here, it is preferable that a lever means is further provided in the casing of the brake control device, and this action is performed by pushing and pulling the lever means so that the brake controller can be pulled out with a small force.
　かかる構成により、鉄道車輌に装着された状態でのメンテナンス作業の際に、容易にブレーキ制御器を引き出せ、取り外すことが可能となる。 With such a configuration, the brake controller can be easily pulled out and removed during maintenance work in a state where it is mounted on a railway vehicle.
　また、更に好ましくは、筐体の開口部を閉塞する開閉蓋を備え、開閉蓋は上部に設けられたヒンジ機構に軸支されて、ヒンジ機構を回動中心として開閉する構成とされる。 Furthermore, more preferably, an opening / closing lid for closing the opening of the housing is provided, and the opening / closing lid is pivotally supported by a hinge mechanism provided at the top, and is configured to open / close with the hinge mechanism as a rotation center.
　開閉蓋を設けることにより、ブレーキ制御装置内部のブレーキ制御器、電磁弁、圧力センサなどの機器を保護でき、また該開閉蓋にはその上方に筐体と連結するヒンジ機構を設けることにより、前面上方に向けて開閉蓋を容易に開くことができ、内部の機器の状態を確認することができる。 By providing an open / close lid, devices such as brake controllers, solenoid valves, and pressure sensors inside the brake control device can be protected. The opening / closing lid can be easily opened upward, and the state of the internal device can be confirmed.
　さらに、筐体天板に配設された上部ナット（固定具）を緩めることにより、装置の外殻を構成するカバーが取り外せ、ブレーキ制御器とブレーキ空制器を２分解できることが好ましい態様である。 Furthermore, it is a preferable aspect that the cover constituting the outer shell of the device can be removed by loosening the upper nut (fixing tool) disposed on the top plate of the casing, and the brake controller and the brake air damper can be disassembled into two parts. .
　かかる構成の態様によれば、ブレーキ制御器とブレーキ空制器を２分解でき、鉄道車輌に装着された状態下におけるブレーキ空制器のメンテナンス性を向上できる。ブレーキ制御器とブレーキ空制器を２分解できることにより、ブレーキ空制器の故障時における適応のみならず、ブレーキ制御器・電磁弁・圧力センサの定期検査時においても、ブレーキ制御装置を車輌艤装から取り外さなくても検査が可能になる利点を有する。 According to this aspect of the configuration, the brake controller and the brake air controller can be disassembled into two parts, and the maintainability of the brake air controller in a state where it is mounted on a railway vehicle can be improved. The ability to disassemble the brake controller and brake air brake into two parts allows the brake control device to be used from the vehicle outfitting not only in the case of brake air brake failure but also during periodic inspection of the brake controller, solenoid valve and pressure sensor. There is an advantage that the inspection can be performed without removing it.
　本発明の鉄道車輌用ブレーキ制御装置は、装置内のケーブル配線を極力少なくすることでコンパクト化でき、またマザーボード上でのコネクタ接続およびブレーキ制御器を案内構造で引き出し可能とすることにより、ブレーキ制御器内の基板の取り外しとブレーキ制御器自体を容易に取り出せ、鉄道車輌にブレーキ制御装置が取り付いた状態下でのメンテナンス作業効率を高めるといった効果がある。 The brake control device for a railway vehicle of the present invention can be made compact by minimizing the cable wiring in the device, and also allows the connector connection on the motherboard and the brake controller to be pulled out by the guide structure, thereby controlling the brake. There is an effect that the removal of the board in the machine and the brake controller itself can be easily taken out, and the maintenance work efficiency is improved in a state where the brake control device is attached to the railway vehicle.
　また、ブレーキ制御器の故障時又はブレーキ制御器の基板の故障時の取り外しが容易にでき、さらに、ブレーキ制御装置の小型化につながり艤装上のユーティリティー性が向上するといった効果がある。 Also, it is possible to easily remove the brake controller when the brake controller fails or when the brake controller board breaks down. Further, the brake controller can be miniaturized and the utility of the equipment can be improved.
図１は、ブレーキ制御装置の概略構成図である。FIG. 1 is a schematic configuration diagram of a brake control device. 図２－１は、ブレーキ制御装置の外観図である。FIG. 2-1 is an external view of the brake control device. 図２－２は、筐体が透けた状態のブレーキ制御装置の外観図である。FIG. 2-2 is an external view of the brake control device in a state where the housing is transparent. 図３は、ブレーキ制御装置の構造説明図である。FIG. 3 is an explanatory diagram of the structure of the brake control device. 図４は、ブレーキ制御装置の故障時のメンテナンス作業のフローチャートである。FIG. 4 is a flowchart of maintenance work at the time of failure of the brake control device. 図５－１は、開閉蓋の開閉とブレーキ制御器のスライドの様子の説明図である。FIG. 5A is an explanatory diagram of opening / closing of the opening / closing lid and sliding of the brake controller. 図５－２は、１枚のマザーボードの配置されている構成図である。FIG. 5B is a configuration diagram in which one motherboard is arranged. 図５－３は、ヒンジ機構の構造図である。FIG. 5C is a structural diagram of the hinge mechanism. 図５－４は、筐体の取り外しの説明図である。FIG. 5-4 is an explanatory diagram of the removal of the housing. 図５－５は、２枚のマザーボードの配置されている構成図である。FIG. 5-5 is a configuration diagram in which two motherboards are arranged. 図６は、レバー手段の構造図である。FIG. 6 is a structural diagram of the lever means. 図７は、鉄道車輌搭載機器の説明図である。FIG. 7 is an explanatory diagram of equipment mounted on a railway vehicle. 図８－１は、従来のブレーキ制御装置の一例を示す概略構成図である。FIG. 8A is a schematic configuration diagram illustrating an example of a conventional brake control device. 図８－２は、従来のブレーキ制御装置の他の例を示す概略構成図である。FIG. 8-2 is a schematic configuration diagram illustrating another example of a conventional brake control device.
符号の説明Explanation of symbols
　１　ブレーキ制御装置
　２　ブレーキ制御器
　２ａ　第１のコネクタ
　４　車輌艤装への接続部（第４のコネクタ）
　５　ブレーキ空制器
　６　電磁弁
　７　圧力センサ
　７ａ　第２のコネクタ／第３のコネクタ
　８，８ａ，８ｂ　マザーボード
　９　エアの給排気部
　１０　筐体
　１０ａ　カバー
　１０ｂ　開閉蓋
　１０ｃ　筐体内支柱
　１２　ヒンジ
　１３　スライドレール（案内構造）
　１４　ナット（固定具）
　２１　カードプラ
　２２　筐体内の支え DESCRIPTION OF SYMBOLS 1 Brake control apparatus 2 Brake controller 2a 1st connector 4 Connection part to vehicle outfitting (4th connector)
DESCRIPTION OF SYMBOLS 5 Brake air release device 6 Solenoid valve 7 Pressure sensor 7a 2nd connector / 3rd connector 8, 8a, 8b Mother board 9 Air supply / exhaust part 10 Housing | casing 10a Cover 10b Opening / closing lid 10c Housing | casing support | pillar 12 Hinge 13 Slide rail (Guide structure)
14 Nut (fixture)
21 Card plastic 22 Support in the housing
　図１は本発明にかかる鉄道車輌用ブレーキ制御装置の実施の形態を示す概略構成図である。また、図２は鉄道車輌用ブレーキ制御装置の外観図であり、図２－１は鉄道車輌用ブレーキ制御装置の外観を示し、図２－２は鉄道車輌用ブレーキ制御装置のカバーが透けた状態を示している。鉄道車輌用ブレーキ制御装置（以降、単にブレーキ制御装置）１は、図示しないブレーキシリンダに給排する空気圧力を可変して鉄道車輌の車輪軸に加える制動力を制御する。ブレーキ制御装置１は、ブレーキ指令信号（電気信号）を出力するブレーキ制御器２と、ブレーキ指令信号に応じたブレーキ指令圧（空気圧）を出力する電磁弁６と、ブレーキシリンダに供給する空気圧力を検出する圧力センサ７と、電磁弁６が出力するブレーキ指令圧を制御圧として調圧された圧縮空気をブレーキシリンダに供給するブレーキ空制器５と、ブレーキ制御器２、電磁弁６及び圧力センサ７を収納しブレーキ空制器５を支持して鉄道車輌の下部に配設された箱状の筐体１０とを備えている。 FIG. 1 is a schematic configuration diagram showing an embodiment of a railway vehicle brake control device according to the present invention. 2 is an external view of the railway vehicle brake control device, FIG. 2A is an external view of the railway vehicle brake control device, and FIG. 2B is a state where the cover of the railway vehicle brake control device is transparent. Is shown. A railway vehicle brake control device (hereinafter simply referred to as a brake control device) 1 controls the braking force applied to the wheel shaft of the railway vehicle by varying the air pressure supplied to and discharged from a brake cylinder (not shown). The brake control device 1 includes a brake controller 2 that outputs a brake command signal (electric signal), an electromagnetic valve 6 that outputs a brake command pressure (air pressure) corresponding to the brake command signal, and an air pressure supplied to the brake cylinder. A pressure sensor 7 to detect, a brake air release device 5 for supplying compressed air adjusted with a brake command pressure output from the solenoid valve 6 as a control pressure, a brake controller 2, a solenoid valve 6 and a pressure sensor 7 and a box-shaped housing 10 disposed below the railway vehicle to support the brake air damper 5.
　筐体１０は、装置の外殻を構成するカバー１０ａと、カバー１０ａの前面開口部を閉塞する開閉蓋１０ｂと、図示しない筐体内支柱とを含んで構成されている。筐体１０内部には、矩形平板状のブレーキ制御器２が複数枚併設されている。筐体１０内部の奥（カバー１０ａと対向する側）には、筐体内面に沿って平行にマザーボード８が配設されている。また、筐体１０内には、筐体１０を鉄道車輌から支持する図示しない筐体内支柱１０ｃが設けられており、筐体１０の天面には、カバー１０ａをこの筐体内支柱１０ｃに固定するための上部ナット（固定具）１４が配設されている。ブレーキ空制器５は、筐体１０の下部に筐体内支柱１０ｃにより支持されて固定されている。筐体１０の背面には、車輌艤装側に延びる接続手段として設けられたコネクタ４が突出している。 The housing 10 is configured to include a cover 10a constituting an outer shell of the apparatus, an opening / closing lid 10b for closing the front opening of the cover 10a, and a post in the housing (not shown). A plurality of rectangular flat brake controllers 2 are provided in the housing 10. A mother board 8 is disposed in parallel with the inner surface of the housing at the back of the housing 10 (on the side facing the cover 10a). In addition, in the housing 10, an in-housing post 10 c (not shown) that supports the housing 10 from the railway vehicle is provided, and a cover 10 a is fixed to the in-housing post 10 c on the top surface of the housing 10. An upper nut (fixing tool) 14 is provided. The brake air conditioner 5 is supported and fixed to the lower part of the housing 10 by a support post 10c in the housing. A connector 4 provided as connection means extending to the vehicle outfitting side protrudes from the rear surface of the housing 10.
　また、図３はブレーキ制御装置の側面方向から見た構造説明図である。図３のＡ～Ｅの部分が、本発明のブレーキ制御装置の構造的な特徴を示している。先ず、第１の特徴Ａの部分は、開閉蓋を取り付けてブレーキ制御器を取り出せるようにした点である。また、第２の特徴Ｂの部分は、ヒンジ機構を付けて開閉蓋を開閉可能として開閉蓋の取り外しを不要とした点である。次に第３の特徴Ｃの部分は、レバー手段とスライドレール機構（案内構造）を設けてブレーキ制御器の取り出し・取り付けを容易化した点である。次に第４の特徴Ｄの部分は、上部ナットを緩めることで、筐体を取り外し可能とした点である。そして、第５の特徴Ｅの部分は、ブレーキ制御器・ブレーキ空制器・車輌艤装の接続が一体化したマザーボードを設けた点である。 FIG. 3 is an explanatory diagram of the structure of the brake control device viewed from the side. 3A to 3E show structural features of the brake control device of the present invention. First, the first feature A is that an opening / closing lid is attached so that the brake controller can be taken out. The second feature B is that a hinge mechanism is attached so that the open / close lid can be opened and closed, and the removal of the open / close lid is unnecessary. Next, the third feature C is that the lever means and the slide rail mechanism (guide structure) are provided to facilitate the removal and attachment of the brake controller. Next, the fourth feature D is that the casing can be removed by loosening the upper nut. The fifth feature E is that a mother board in which the connection of the brake controller, the brake air brake, and the vehicle equipment is integrated is provided.
　本発明のブレーキ制御装置が上述した構造的な特徴を有するメリットについて以下に説明する。先ず、本発明のブレーキ制御装置の故障が発生した場合における処置対応について図４のフローチャートを参照して説明する。 The merits of the above-described structural features of the brake control device of the present invention will be described below. First, a response to a case where a failure of the brake control device of the present invention occurs will be described with reference to the flowchart of FIG.
　ブレーキ制御装置の故障を検知した際、従来のブレーキ制御装置の場合は、開閉蓋が螺子止めされていたため、ドライバーを用いて螺子を取り外し、開閉蓋を装置筐体から取り外していた。これに対して本発明のブレーキ制御装置は、ブレーキ制御装置の故障を検知した際（ステップＳ１）。第１の特徴Ａと第２の特徴Ｂを備えていることから、ブレーキ制御装置を取り外さなくても開閉蓋を開けるだけでブレーキ制御器のＬＥＤの表示を確認できる。すなわち、開閉蓋の置き場所を考慮してブレーキ制御装置の上部にヒンジ機構を設けて、開閉蓋の取り外しを不要とし作業効率を向上させている。 When a failure of the brake control device was detected, in the case of the conventional brake control device, since the opening / closing lid was screwed, the screw was removed using a screwdriver, and the opening / closing lid was removed from the device housing. In contrast, the brake control device of the present invention detects a failure of the brake control device (step S1). Since the first feature A and the second feature B are provided, the LED display of the brake controller can be confirmed by simply opening the opening / closing lid without removing the brake control device. That is, in consideration of the place where the opening / closing lid is placed, a hinge mechanism is provided at the upper part of the brake control device, so that the removal of the opening / closing lid is not required and the working efficiency is improved.
　そして開閉蓋を開けた後（ステップＳ２）。内部にあるブレーキ制御器のＬＥＤ表示状態を確認して故障表示内容を判断する（ステップＳ３）。すなわち、ブレーキ制御器のＬＥＤ表示状態によって、基板・電磁弁・圧力センサのいずれの故障であるかを判断するのである。故障原因が特定できず故障原因の解析が必要な場合は、ブレーキ制御器自体を取り外すことになる（ステップＳ４）。そして、ブレーキ制御器もしくは、ブレーキ空制部の調査をする（ステップＳ５）。 After opening the open / close lid (step S2). A failure display content is determined by confirming the LED display state of the brake controller inside (step S3). That is, it is determined which of the failure of the substrate, the solenoid valve, and the pressure sensor is based on the LED display state of the brake controller. If the cause of failure cannot be identified and analysis of the cause of failure is necessary, the brake controller itself is removed (step S4). Then, the brake controller or the brake air control unit is investigated (step S5).
　その時、ブレーキ制御器が収納されている筐体内からブレーキ制御器を引き出し可能なように、第３の特徴Ｃであるレバー手段とスライドレール機構を設けているので、ブレーキ制御器の点検の際に筐体から引き出すことが可能で、鉄道車輌にブレーキ制御装置が取り付いた状態でも、容易にブレーキ制御器が取り外すことができる。 At that time, the lever means and the slide rail mechanism, which are the third feature C, are provided so that the brake controller can be pulled out from the housing in which the brake controller is housed. The brake controller can be pulled out from the housing, and the brake controller can be easily removed even when the brake control device is attached to the railway vehicle.
　ブレーキ制御器のＬＥＤ表示状態によって、ブレーキ制御器のマザーボードが故障であると判断した場合、ブレーキ制御器のマザーボードのみを取り出せるようにする（ステップＳ６）。そして、マザーボードの調査をする（ステップＳ７）。 If it is determined that the motherboard of the brake controller is out of order based on the LED display state of the brake controller, only the motherboard of the brake controller can be taken out (step S6). Then, the mother board is investigated (step S7).
　ブレーキ制御器のＬＥＤ表示状態によって、電磁弁又は圧力センサが故障であると判断した場合、第４の特徴Ｄを備えていることで、ブレーキ制御装置の筐体天板に配設されたナットを筐体天板から取り除いて、筐体、開閉蓋および左右側面カバーを取り外すことができ（ステップＳ８）。ブレーキ制御器自体も引き出せることから、電磁弁や圧力センサの上方側、側面側の作業スペースを確保することが可能となり、電磁弁や圧力センサの調査や交換作業が効率よくできることになる（ステップＳ９）。 When it is determined that the solenoid valve or the pressure sensor is out of order according to the LED display state of the brake controller, the nut arranged on the casing top plate of the brake control device is provided with the fourth feature D. The casing, the opening / closing lid, and the left and right side covers can be removed by removing from the casing top plate (step S8). Since the brake controller itself can be pulled out, it is possible to secure work spaces on the upper and side surfaces of the solenoid valve and pressure sensor, and to efficiently investigate and replace the solenoid valve and pressure sensor (step S9). ).
　またブレーキ制御器のＬＥＤ表示状態によって、ブレーキ空制器が故障であると判断した場合やブレーキ空制器の故障の可能性があると考えられる場合は、艤装状態からブレーキ制御装置自体を取り外すことになる。第５の特徴Ｅを備えていることで、ブレーキ制御装置のブレーキ制御器、ブレーキ空制器、車輌艤装への接続を１枚のマザーボードで共有させることが可能で、極力少ない配線レスの構造となり、またブレーキ制御装置が小型化されており取り外しが容易に行える。 Also, if it is determined that the brake air conditioner is malfunctioning due to the LED display status of the brake controller, or if there is a possibility that the brake air conditioner may be broken, remove the brake control device itself from the outfitting state. become. By providing the fifth feature E, it is possible to share the connection of the brake controller of the brake control device, the brake air conditioner, and the vehicle outfit with a single motherboard, resulting in a structure with minimal wiring. Moreover, the brake control device is miniaturized and can be easily removed.
　以下、本発明の実施形態について、図面を参照しながら詳細に説明していく。ただし、本発明の範囲は、図示例に限定されるものではない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the scope of the present invention is not limited to the illustrated examples.
　実施例１のブレーキ制御装置の構造的な特徴について、図５－１～図５－５を用いて説明する。実施例１のブレーキ制御装置１は、上述したように、ブレーキシリンダに給排する空気圧力を可変して鉄道車輌の車輪軸に加える制動力を制御する鉄道車輌用ブレーキ制御装置であり、ブレーキ指令信号を出力するブレーキ制御器２と、ブレーキ指令信号に応じたブレーキ指令圧を出力する電磁弁６と、ブレーキシリンダに供給する空気圧力を検出する圧力センサ７と、電磁弁６が出力するブレーキ指令圧を制御圧として調圧された圧縮空気をブレーキシリンダに供給するブレーキ空制器５と、ブレーキ制御器２、電磁弁６及び圧力センサ７を収納すると共にブレーキ空制器５を支持して鉄道車輌の下部に配設された箱状の筐体１０とを備えている。ブレーキ空制器５、電磁弁６及び圧力センサ７は、ブレーキ空制部を構成している。ブレーキ空制器５の背面には、エアの給排気部９が設けられている。 The structural features of the brake control device of the first embodiment will be described with reference to FIGS. 5-1 to 5-5. The brake control device 1 of the first embodiment is a railroad vehicle brake control device that controls the braking force applied to the wheel shaft of the railcar by changing the air pressure supplied to and discharged from the brake cylinder as described above. A brake controller 2 that outputs a signal, an electromagnetic valve 6 that outputs a brake command pressure corresponding to the brake command signal, a pressure sensor 7 that detects air pressure supplied to the brake cylinder, and a brake command that the electromagnetic valve 6 outputs A brake air brake 5 for supplying compressed air, which has been regulated with pressure as a control pressure, to the brake cylinder, a brake controller 2, an electromagnetic valve 6 and a pressure sensor 7 are housed, and the brake air damper 5 is supported to support the railway. And a box-shaped housing 10 disposed in the lower part of the vehicle. The brake air damper 5, the electromagnetic valve 6, and the pressure sensor 7 constitute a brake air damper. An air supply / exhaust unit 9 is provided on the rear surface of the brake air damper 5.
　筐体１０は、前面開口部を開閉蓋１０ｂで閉塞されたカバー１０ａと、カバー１０ａの内部に設けられた筐体内支柱１０ｃとを有している。筐体１０内部には、矩形平板状のブレーキ制御器２が図５－１および図５－２の紙面に垂直な方向に複数枚併設されている。箱状の筐体１０内部には、奥側の内面に沿って平行にマザーボード８が配設されている。ブレーキ空制器５は、筐体１０の下部に筐体内支柱１０ｃにより支持されて固定されている。筐体１０の背面には、車輌艤装側に延びる接続手段として設けられたコネクタ４が突出している。そして、ブレーキ制御装置１は下記（１）～（３）の特徴を有している。 The housing 10 has a cover 10a whose front opening is closed with an opening / closing lid 10b, and a support post 10c provided inside the cover 10a. A plurality of rectangular flat brake controllers 2 are provided in the casing 10 in a direction perpendicular to the paper surface of FIGS. 5A and 5B. Inside the box-shaped housing 10, a mother board 8 is disposed in parallel along the inner surface on the back side. The brake air conditioner 5 is supported and fixed to the lower part of the housing 10 by a support post 10c in the housing. A connector 4 provided as connection means extending to the vehicle outfitting side protrudes from the rear surface of the housing 10. The brake control device 1 has the following features (1) to (3).
（１）図５－１に示されるように、矩形箱状の筐体１０の奥に筐体内面に沿って延在し、ブレーキ空制器５、ブレーキ制御器２、及び図示しない車輌艤装相互間の信号配線の中継を行うマザーボード８が設けられ、マザーボード８上に中継信号を振り分ける複数の配線パターンが形成されている。
（２）図５－２に示されるように、ブレーキ制御器２の背面に設けられた第１のコネクタ２ａ、および電磁弁６に延びるケーブル端に設けられた第２のコネクタ７ａ及び圧力センサ７に延びるケーブル端に設けられた第３のコネクタ７ａ（第２のコネクタと第３のコネクタは、合体されて１つのコネクタ７ａとされている）が、マザーボード８の前面に接続され、車輌艤装に延びる接続手段に設けられた第４のコネクタ４がマザーボード８の背面に接続されている（なお、第４のコネクタ４は、マザーボード８の側面に接続されてもよい）。
（３）図５－１に示されるように、ブレーキ制御器２は、筐体１０に設けられたスライドレール（案内構造）１３により、筐体１０から抜き差し可能とされ、筐体１０に差し込まれた収納位置にて、第１のコネクタ２ａをマザーボード８に直接接続させる。 (1) As shown in FIG. 5A, the interior of the rectangular box-shaped housing 10 extends along the inner surface of the housing, and the brake air brake 5, the brake controller 2, and a vehicle equipment (not shown) A mother board 8 for relaying signal wirings between them is provided, and a plurality of wiring patterns for distributing relay signals are formed on the mother board 8.
(2) As shown in FIG. 5B, the first connector 2a provided on the rear surface of the brake controller 2, the second connector 7a provided on the cable end extending to the electromagnetic valve 6, and the pressure sensor 7 A third connector 7a provided at the end of the cable extending to (a second connector and a third connector are combined into a single connector 7a) is connected to the front surface of the mother board 8, so that The 4th connector 4 provided in the extending connection means is connected to the back surface of the motherboard 8 (the 4th connector 4 may be connected to the side surface of the motherboard 8).
(3) As shown in FIG. 5A, the brake controller 2 can be inserted into and removed from the housing 10 by a slide rail (guide structure) 13 provided in the housing 10. The first connector 2a is directly connected to the mother board 8 at the stored position.
　図５－４に示すように、上部ナット（固定具）１４を緩めることで、カバー１０ａを上方に取り外し可能としている。筐体１０を取り除くと、ブレーキ空御器５を支えていた筐体内支柱１０ｃと、その筐体内支柱１０ｃに取り付けられているブレーキ制御器２と、ブレーキ制御器２の下方で筐体内支柱１０ｃに固定されているブレーキ空制器５と、ブレーキ空制器５のユニット上面に配設された圧力センサ７と電磁弁６とが露呈する。 As shown in FIG. 5-4, the cover 10a can be removed upward by loosening the upper nut 14 (fixing tool). When the housing 10 is removed, the in-housing post 10c that has supported the brake emptying device 5, the brake controller 2 attached to the in-housing post 10c, and the in-housing post 10c below the brake controller 2. The brake air damper 5 that is fixed, the pressure sensor 7 and the electromagnetic valve 6 that are disposed on the upper surface of the unit of the brake air damper 5 are exposed.
　ブレーキ制御器２は、筐体内支柱１０ｃとの間でスライドレール（図示しない）を用いて引き出すことができるため、ブレーキ制御器２のユニットとブレーキ空制器５のユニットとの間のスペースが狭くとも、電磁弁６や圧力センサ７の交換・点検などのメンテナンス作業を効率よく実施できる。 Since the brake controller 2 can be pulled out by using a slide rail (not shown) with respect to the support column 10c in the housing, the space between the unit of the brake controller 2 and the unit of the brake air conditioner 5 is narrow. In both cases, maintenance work such as replacement and inspection of the electromagnetic valve 6 and the pressure sensor 7 can be performed efficiently.
　図５－３はヒンジ機構を示している。図５－３に示すように、筐体１０（カバー１０ａ）と開閉蓋１０ｂ上部をヒンジ１２で接続し、開閉蓋１０ｂを開閉可能とする。その時、ヒンジの種類により多段階での開閉も可能である。実施例では、フラットトルクヒンジを用いている。 Fig. 5-3 shows the hinge mechanism. As shown in FIG. 5C, the casing 10 (cover 10a) and the upper part of the opening / closing lid 10b are connected by a hinge 12, so that the opening / closing lid 10b can be opened and closed. At that time, it can be opened and closed in multiple stages depending on the type of hinge. In the embodiment, a flat torque hinge is used.
　なお、図５－５に共有されるマザーボードが２枚の構成の場合を示す。２枚のマザーボード８ａ，８ｂ同士は、両端がコネクタの集合ケーブルで接続されている。 In addition, Fig. 5-5 shows the case where there are two motherboards shared. The two mother boards 8a and 8b are connected to each other by a connector cable.
　次に、実施例２のブレーキ制御装置は、実施例１のブレーキ制御装置の筐体内にレバー手段を更に備え、このレバー手段の押し引き動作によりブレーキ制御器の引き出しが行える実施例について説明する。
　図６は、実施例２のレバー手段の構造図である。図６に示すように、ブレーキ制御器２側にカードプラ２１を取り付け、筐体内に支え２２を取り付ける。カードプラ２１の上部を引くことにより（矢印ａの方向）、筐体内の支え２２を押し（矢印ｂの方向）、てこの作用が働き小さな力でブレーキ制御器２を引き出すことができる。このようにして、レバーの押し引き動作により、ブレーキ制御器２の引き出しを行うのである。 Next, the brake control apparatus according to the second embodiment will be described with respect to an embodiment in which lever means is further provided in the casing of the brake control apparatus according to the first embodiment, and the brake controller can be pulled out by pushing and pulling the lever means.
FIG. 6 is a structural diagram of lever means of the second embodiment. As shown in FIG. 6, a card plastic 21 is attached to the brake controller 2 side, and a support 22 is attached in the housing. By pulling the upper part of the card plastic 21 (in the direction of the arrow a), the support 22 in the housing is pushed (in the direction of the arrow b), and the lever action works to pull out the brake controller 2 with a small force. In this way, the brake controller 2 is pulled out by pushing and pulling the lever.
　本発明の鉄道車輌用ブレーキ制御装置は、鉄道車輌のブレーキ制御装置への利用のみならず、図７に示すように、他の鉄道車輌搭載機器（ＡＴＣ／ＡＴＳ／ＴＩＭＳ／ＶＶＶＦ／ＳＩＶ／ＭＯＮＩＴＯＲ等）に対して利用可能である。 The railway vehicle brake control apparatus according to the present invention is used not only for the railway vehicle brake control apparatus but also other railway vehicle-mounted equipment (ATC / ATS / TIMS / VVVF / SIV / MONITOR, etc.) as shown in FIG. ).

Claims (4)

  1. 　ブレーキシリンダに給排する空気圧力を可変して鉄道車輌の車輪軸に加える制動力を制御する鉄道車輌用ブレーキ制御装置において、
    　ブレーキ指令信号を出力するブレーキ制御器と、前記ブレーキ指令信号に応じたブレーキ指令圧を出力する電磁弁と、前記ブレーキシリンダに供給する空気圧力を検出する圧力センサと、前記電磁弁が出力するブレーキ指令圧を制御圧として調圧された圧縮空気を前記ブレーキシリンダに供給するブレーキ空制器と、前記ブレーキ制御器、前記電磁弁及び前記圧力センサを収納すると共に前記ブレーキ空制器を支持して鉄道車輌の下部に配設された箱状の筐体とを備え、
    　筐体の奥に筐体内面に沿って延在し、前記筐体内に収納された各機器及び車輌艤装相互間の信号配線の中継を行うマザーボードが設けられ、
    　前記マザーボード上に中継信号を振り分ける複数の配線パターンが形成され、
    　前記ブレーキ制御器の背面に設けられた第１のコネクタ、および前記電磁弁に延びるケーブル端に設けられた第２のコネクタ及び前記圧力センサに延びるケーブル端に設けられた第３のコネクタが、前記マザーボードの前面に接続され、前記車輌艤装に延びる接続手段に設けられた第４のコネクタが前記マザーボードの背面或いは側面に接続されており、　前記ブレーキ制御器は、前記筐体に設けられた案内構造により、前記筐体から抜き差し可能とされ、前記筐体に差し込まれた収納位置にて、前記第１のコネクタを前記マザーボードに直接接続させる
    　ことを特徴とする鉄道車輌用ブレーキ制御装置。     In a brake control device for a railway vehicle that controls the braking force applied to the wheel axle of the railway vehicle by changing the air pressure supplied to and discharged from the brake cylinder,
    A brake controller that outputs a brake command signal, a solenoid valve that outputs a brake command pressure according to the brake command signal, a pressure sensor that detects air pressure supplied to the brake cylinder, and a brake that is output by the solenoid valve A brake air release device that supplies compressed air that has been regulated using a command pressure as a control pressure to the brake cylinder; and the brake controller, the electromagnetic valve, and the pressure sensor are housed, and the brake air release device is supported. A box-shaped housing disposed at the bottom of the railway vehicle,
    A motherboard that extends along the inner surface of the housing at the back of the housing and relays signal wiring between each device and vehicle equipment housed in the housing is provided,
    A plurality of wiring patterns for distributing relay signals are formed on the motherboard,
    A first connector provided on a back surface of the brake controller, a second connector provided on a cable end extending to the electromagnetic valve, and a third connector provided on a cable end extending to the pressure sensor, A fourth connector provided on a connecting means connected to the front surface of the mother board and extending to the vehicle equipment is connected to the rear surface or side surface of the mother board, and the brake controller is provided on the casing. Thus, the rail vehicle brake control device is characterized in that the first connector can be directly connected to the mother board at a storage position inserted into the housing.
  2. 　前記筐体は、てこの作用により前記ブレーキ制御器を少ない力で抜き差し可能とするレバー手段をさらに備える
    　ことを特徴とする請求項１に記載の鉄道車輌用ブレーキ制御装置。     The railway vehicle brake control device according to claim 1, wherein the casing further includes lever means that allows the brake controller to be inserted and removed with a small force by a lever action.
  3. 　前記筐体は、開口部を閉塞する開閉蓋をさらに備え、前記開閉蓋は上部に設けられたヒンジ機構に軸支されて、前記ヒンジ機構を回動中心として開閉する
    　ことを特徴とする請求項１に記載の鉄道車輌用ブレーキ制御装置。     The said housing | casing is further provided with the opening-and-closing lid which obstruct | occludes an opening part, The said opening-and-closing lid is pivotally supported by the hinge mechanism provided in the upper part, It opens and closes using the said hinge mechanism as a rotation center. The brake control apparatus for railway vehicles according to 1.
  4. 　前記筐体は、装置の外殻を構成し固定具を外すことにより取り外し可能なカバーを有し、該カバーを取り外すことにより、前記ブレーキ制御器、前記電磁弁及び前記圧力センサが露呈し、前記カバーを取り外した状態で前記ブレーキ制御器と前記ブレーキ空制器とが２分解可能とされている
    　ことを特徴とする請求項１に記載の鉄道車輌用ブレーキ制御装置。     The housing has a cover that constitutes an outer shell of the device and can be removed by removing a fixture, and by removing the cover, the brake controller, the solenoid valve, and the pressure sensor are exposed, The brake control device for a railway vehicle according to claim 1, wherein the brake controller and the brake air damper are disassembled into two parts with the cover removed.
PCT/JP2008/071038 2008-11-19 2008-11-19 Brake control device for railroad rolling stock WO2010058458A1 (en)

Priority Applications (2)

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JP2010539069A JP5220124B2 (en) 2008-11-19 2008-11-19 Brake control device for railway vehicles
PCT/JP2008/071038 WO2010058458A1 (en) 2008-11-19 2008-11-19 Brake control device for railroad rolling stock

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PCT/JP2008/071038 WO2010058458A1 (en) 2008-11-19 2008-11-19 Brake control device for railroad rolling stock

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015139978A3 (en) * 2014-03-20 2015-12-30 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Compressed-air brake assembly for a rail vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140269A (en) * 1981-02-23 1982-08-30 Tokyo Shibaura Electric Co Controller box for car
JPH0419259A (en) * 1990-05-10 1992-01-23 Nabco Ltd Brake control device for rolling stock
JPH1098285A (en) * 1996-09-25 1998-04-14 Toshiba Corp Microcomputer control unit
JP2005239035A (en) * 2004-02-27 2005-09-08 Toshiba Corp Control device for vehicle
JP2007055560A (en) * 2005-08-26 2007-03-08 Advics:Kk Brake hydraulic pressure control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140269A (en) * 1981-02-23 1982-08-30 Tokyo Shibaura Electric Co Controller box for car
JPH0419259A (en) * 1990-05-10 1992-01-23 Nabco Ltd Brake control device for rolling stock
JPH1098285A (en) * 1996-09-25 1998-04-14 Toshiba Corp Microcomputer control unit
JP2005239035A (en) * 2004-02-27 2005-09-08 Toshiba Corp Control device for vehicle
JP2007055560A (en) * 2005-08-26 2007-03-08 Advics:Kk Brake hydraulic pressure control device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015139978A3 (en) * 2014-03-20 2015-12-30 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Compressed-air brake assembly for a rail vehicle
AU2015233728B2 (en) * 2014-03-20 2018-01-04 Knorr-Bremse Systeme Fur Schienenfahrzeuge Gmbh Compressed-air brake assembly for a rail vehicle
RU2640682C1 (en) * 2014-03-20 2018-01-11 Кнорр-Бремзе Зюстеме Фюр Шиненфарцойге Гмбх Layout of air brake system of railway vehicle
US10843676B2 (en) 2014-03-20 2020-11-24 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Compressed-air brake assembly for a rail vehicle

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