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WO2024131921A1 - 一种用于轨道车辆空气制动远程缓解控制系统 - Google Patents

一种用于轨道车辆空气制动远程缓解控制系统 Download PDF

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Publication number
WO2024131921A1
WO2024131921A1 PCT/CN2023/140891 CN2023140891W WO2024131921A1 WO 2024131921 A1 WO2024131921 A1 WO 2024131921A1 CN 2023140891 W CN2023140891 W CN 2023140891W WO 2024131921 A1 WO2024131921 A1 WO 2024131921A1
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WO
WIPO (PCT)
Prior art keywords
remote
brake
valve
relief
remote relief
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Application number
PCT/CN2023/140891
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English (en)
French (fr)
Inventor
陈孟夏
赵建飞
Original Assignee
克诺尔车辆设备(苏州)有限公司
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Application filed by 克诺尔车辆设备(苏州)有限公司 filed Critical 克诺尔车辆设备(苏州)有限公司
Publication of WO2024131921A1 publication Critical patent/WO2024131921A1/zh

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Classifications

    • 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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • 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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/04—Driver's valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B61C17/12—Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H13/00—Actuating rail vehicle brakes

Definitions

  • the utility model relates to the field of brake equipment and control in rail transportation, in particular to a remote relief control system for air brakes of rail vehicles.
  • the brake failure occurs, it will usually have a negative impact on the operation of the train. If it is not handled in time, it will affect the subsequent train scheduling timetable. In severe cases, it will also cause passenger removal and rescue or train withdrawal from operation service.
  • Some existing trains do not have a remote relief function. Instead, a manual cut-off gate is set under the passenger compartment seat. The driver needs to walk from the driver's cab to the passenger compartment corresponding to the fault point to operate, and can only operate one by one. If the brake failure occurs during peak passenger load, the operation is time-consuming and laborious.
  • the isolated bogie braking function includes the loss of emergency braking, which affects the safe braking distance of parking.
  • the utility model aims to provide a remote relief control system for rail vehicle air brakes, which can remotely relieve the basic brake device in the driver's cab or ground control center, quickly and effectively eliminate the failure of brake relief, and improve vehicle availability; at the same time, avoid the risk of slipping caused by misoperation and improve safety of use.
  • a remote relief control system for rail vehicle air brakes comprising a remote relief solenoid valve and a remote relief control circuit;
  • the remote relief solenoid valve comprises a control unit and an intake valve and an exhaust valve, wherein the control unit is connected in series to the remote relief control circuit, the intake valve is normally open, and the exhaust valve is normally closed; the intake valve is used to connect an upstream pressure source and a brake cylinder inside a basic brake device, and the exhaust valve connects the exhaust passage of the brake cylinder.
  • the remote relief control circuit includes a power supply, an operating button, a remote relief relay and a brake status relay, wherein the remote relief relay, the brake status relay and the control part of the remote relief solenoid valve are connected in series between the positive and negative poles of the power supply, and the operating button is connected in parallel with the remote relief relay.
  • the brake cylinder inside the basic brake device is provided with two exhaust passages, wherein the first The exhaust passage is used to discharge the compressed air inside the brake cylinder during normal air brake release; the second exhaust passage is connected to the exhaust valve of the remote release solenoid valve, and when the first exhaust passage fails, the exhaust valve is opened to discharge the compressed air inside the brake cylinder.
  • a pressure sensor is provided on the first exhaust passage to monitor the brake cylinder pressure in the basic braking device in real time and upload the pressure to the train network control system.
  • the intake valve is turned on and the exhaust valve is closed; when the control unit is powered on, the intake valve is closed and the exhaust valve is turned on.
  • the remote relief relay is remotely controlled by a ground control center and can be closed only when the train brakes are not relieved; the brake state relay can be closed only when the train is in a non-braking state.
  • the operation button is arranged on the control panel in the train driver's cab and is a non-self-resetting button, and the driver activates the brake release function by operating the button.
  • the remote relief operating system of the utility model is used in the air brake of rail vehicles.
  • the air brake can be completely relieved by one-button operation through the ground control center or the driver's cab, saving time and effort.
  • the control circuit is interlocked with the emergency brake loop, and the remote relief function is invalid for emergency braking.
  • the emergency braking safety distance is not affected, ensuring operational safety;
  • the remote relief function can only be activated and effective under non-braking conditions, further avoiding the risk of slipping caused by misoperation and ensuring safety in use.
  • FIG1 is a schematic diagram of a remote relief control system for air brakes of rail vehicles according to the utility model.
  • the utility model is a remote relief control system for rail vehicle air brakes, including a remote relief solenoid valve and a remote relief control circuit;
  • the remote relief solenoid valve includes a control unit 1 and an intake valve 2 and an exhaust valve 3, wherein the control unit 1 is connected in series to the remote relief control circuit, the intake valve 2 is normally open, and the exhaust valve 3 is normally closed.
  • the control unit 1 is powered off, the intake valve 2 is turned on and the exhaust valve 3 is closed; when the control unit 1 is powered on, the intake valve 2 is closed and the exhaust valve 3 is turned on.
  • the intake valve 2 is used to connect the upstream pressure source and the brake cylinder inside the basic brake device 8, and the exhaust valve 3 connects the exhaust passage of the brake cylinder.
  • the remote relief control circuit includes a power supply 7, an operation button 4, a remote relief relay 5 and a brake status relay 6, wherein the remote The remote relief relay 5, the brake status relay 6 and the control part 1 of the remote relief solenoid valve are connected in series between the positive and negative poles of the power supply 7, and the operation button 4 is connected in parallel with the remote relief relay 5.
  • the brake cylinder inside the basic brake device 8 is provided with two exhaust passages, wherein the first exhaust passage 11 is used to discharge the compressed air inside the brake cylinder when the normal air brake is released; the second exhaust passage 12 is connected to the exhaust valve 3 of the remote release solenoid valve, and when the first exhaust passage 11 fails, the exhaust valve 3 is opened to discharge the compressed air inside the brake cylinder.
  • the first exhaust passage 11 is provided with a pressure sensor 9 to monitor the brake cylinder pressure in the basic brake device in real time and upload it to the train network control system.
  • the remote release solenoid valve is interlocked with the train emergency brake loop, that is, the remote release operation does not affect the emergency brake function.
  • the remote release function is activated by operating the operation button 4 or closing the remote release relay 5, and the intake valve 2 cuts off the upstream pressure source.
  • the compressed air inside the brake cylinder of the basic brake device is discharged to the atmosphere through the exhaust valve 3.
  • the operator can remotely release the basic brake device in the driver's cab or the ground control center without going to the passenger compartment to operate the isolation plug door one by one, which can quickly and effectively eliminate the brake failure, save time and effort, and improve vehicle availability; at the same time, it avoids the risk of slipping caused by misoperation and improves safety in use.
  • the second exhaust passage 12 is a remote relief control air passage, which is independent of the first exhaust passage 11. It has a separate solenoid valve and piston valve in hardware, which can be switched when handling faults.
  • the control unit 1 of the remote relief solenoid valve is normally in a power-off state, the intake valve 2 controlled by it is in a conducting state, and the exhaust valve 3 is in a closed state, that is, the compressed air upstream of the intake valve 2 can enter the basic brake cylinder, and after passing through the pressure regulating unit, the brake pressure is maintained, and the compressed air inside the brake cylinder is not connected to the atmosphere.
  • the remote relief intake piston valve 2 When the control unit 1 is powered, the remote relief intake piston valve 2 is in a non-conducting state, cutting off the upstream compressed air supply, and the exhaust valve 3 is in a conducting state, that is, on the one hand, the upstream compressed air no longer enters the basic brake cylinder, avoiding the "charging and discharging phenomenon"; on the other hand, the compressed air inside the brake cylinder is discharged to the atmosphere through the exhaust valve 3, achieving the purpose of air brake relief.
  • the control unit 1 of the remote relief solenoid valve is connected in series in the emergency brake loop and has an internal interlocking function. When the emergency brake loop is disconnected, the control unit 1 of the remote relief solenoid valve is also powered off. Therefore, the remote relief function fails in the emergency braking state, which has a safety guarantee effect.
  • a remote relief relay 5 and a brake status relay 6 are connected in series in the remote relief control circuit.
  • the remote relief relay 5 can only be closed when the train brakes are not relieved and is remotely controlled by the ground control center; the brake status relay 6 can only be closed when the train is in a non-braking state such as traction or coasting.
  • the remote relief operation is only effective when these two relays are closed at the same time; when only one of the two relays is closed, the remote relief operation is invalid.
  • the remote relief function can also be triggered by operating button 4, which is usually set on the control console of the train driver's cab. It is a non-self-resetting type with an indicator light.
  • the driver can activate the brake relief function by operating the button. The driver only needs to press the button once to maintain the current state, and only needs to press the button again to change the state.
  • the indicator light on the button can indicate the current operating status. The indicator light is on, indicating that the brake relief state is set, and the indicator light is off, indicating that the brake relief state is reset.
  • Activating the remote relief function by operating button 4 also needs to be combined with the state of the brake state relay 6, that is, the operation is only valid when it is not in the braking state.
  • the pressure sensor 9 monitors the brake cylinder pressure in the basic brake device in real time and uploads it to the train network control system. When the pressure is greater than a certain threshold value P1, the brake is considered to be in an applied state; when the pressure is less than a certain threshold value P2, the brake is considered to be in a relieved state. When a brake non-relieving fault occurs, after the compressed air in the brake cylinder is emptied using the remote relief function, when the pressure sensor 9 detects that the brake cylinder pressure is less than P2, the brake is considered to be in a relieved state, and the prompt of the brake non-relieving fault will disappear, which will not affect the train's traction performance, and the train can continue to operate normally.
  • the air brake can be completely relieved with one-touch operation through the ground control center or the driver's cab, saving time and effort.
  • the control circuit is interlocked with the emergency brake loop, and the remote relief function is invalid for emergency braking, and the emergency braking safety distance is not affected, ensuring operational safety;
  • the remote relief function can only be activated and effective under non-braking conditions, further avoiding the risk of slipping caused by misoperation and ensuring safety in use.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

本实用新型公开了一种用于轨道车辆空气制动远程缓解控制系统，包括远程缓解电磁阀及远程缓解控制回路；所述远程缓解电磁阀包括控制部和进气阀、排气阀，其中控制部串接在远程缓解控制回路上；所述进气阀用于接通上游压力源和基础制动装置内部的制动缸，排气阀接通制动缸的排气通路。所述远程缓解控制回路包括电源、操作按钮、远程缓解继电器和制动状态继电器。本实用新型的远程缓解操作系统，无需操作人员行至客室逐一操作截断塞门，通过地面控制中心或司机室一键操作即可进行空气制动完全缓解，省时省力。控制电路与紧急制动环路互锁，远程缓解功能对紧急制动无效，紧急制动安全距离不受影响，保证运营安全。

Description

一种用于轨道车辆空气制动远程缓解控制系统 技术领域
本实用新型涉及轨道交通中的制动设备及控制领域，特别涉及一种用于轨道车辆空气制动远程缓解控制系统。
背景技术
若列车在需要牵引的情况下仍存在制动即出现制动未缓解故障，通常都会对列车运营产生负面影响，若不及时处理会影响后续列车调度时刻表，严重情况下还会产生清客救援或列车退出运营服务。部分现有列车并未设置远程缓解功能，采用的是在客室座椅下方设置手动截断塞门，司机需要从司机室行至故障点对应的客室内进行操作，且只能逐个操作，若制动不缓解故障发生在高峰载客量时，则操作费时费力。且被隔离的转向架制动功能包括紧急制动丢失，影响停车安全制动距离；部分列车虽然在司机室设置了远程缓解按钮，但通常操作时，一旦司机按下该按钮，将立即缓解整列车空气制动，松开按钮时远程缓解功能复位。一方面在误操作时会导致溜车的风险较大，另一方面若松开按钮后制动不缓解故障又复现则只能再次或一直按住该按钮，降低故障处理效率。
实用新型内容
本实用新型目的是：提供一种用于轨道车辆空气制动远程缓解控制系统，可在司机室或地面控制中心对基础制动装置进行远程缓解，快速有效消除制动不缓解故障，提高车辆可用性；同时避免误操作引发溜车的风险，提高使用安全性。
本实用新型的技术方案是：
一种用于轨道车辆空气制动远程缓解控制系统，包括远程缓解电磁阀及远程缓解控制回路；所述远程缓解电磁阀包括控制部和进气阀、排气阀，其中控制部串接在远程缓解控制回路上，进气阀常开，排气阀常闭；所述进气阀用于接通上游压力源和基础制动装置内部的制动缸，排气阀接通制动缸的排气通路。
优选的，所述远程缓解控制回路包括电源、操作按钮、远程缓解继电器和制动状态继电器，其中远程缓解继电器、制动状态继电器与远程缓解电磁阀的控制部串联在电源正负极之间，操作按钮与远程缓解继电器并联。
优选的，所述基础制动装置内部的制动缸设置有两个排气通路，其中第一 排气通路用于正常空气制动缓解时，排放制动缸内部的压缩空气；第二排气通路接通远程缓解电磁阀的排气阀，在第一排气通路故障时，开启排气阀排放制动缸内部的压缩空气。
优选的，所述第一排气通路上设置有压力传感器，实时监控基础制动装置中的制动缸压力，并上传至列车网络控制系统。
优选的，所述远程缓解电磁阀中控制部断电时，进气阀导通、排气阀关闭；控制部通电时，进气阀关闭、排气阀导通。
优选的，所述远程缓解继电器由地面控制中心远程控制，只有在列车出现制动未缓解时能够被闭合；制动状态继电器只有列车在非制动状态才能够被闭合。
优选的，所述操作按钮设置在列车司机室操控台上，采用非自复位型按钮，司机通过操作该按钮激活制动缓解功能。
本实用新型的优点是：
本实用新型的远程缓解操作系统，用于轨道车辆空气制动中，首先，无需操作人员行至客室逐一操作截断塞门，通过地面控制中心或司机室一键操作即可进行空气制动完全缓解，省时省力。其次，控制电路与紧急制动环路互锁，远程缓解功能对紧急制动无效，紧急制动安全距离不受影响，保证运营安全；再次，远程缓解功能只有在非制动工况下才能被激活有效，进一步避免误操作导致溜车风险，保障使用安全。
附图说明
下面结合附图及实施例对本实用新型作进一步描述：
图1为本实用新型用于轨道车辆空气制动远程缓解控制系统的原理图。
具体实施方式
本实用新型的一种用于轨道车辆空气制动远程缓解控制系统，包括远程缓解电磁阀及远程缓解控制回路；所述远程缓解电磁阀包括控制部1和进气阀2、排气阀3，其中控制部1串接在远程缓解控制回路上，进气阀2常开，排气阀3常闭。控制部1断电时，进气阀2导通、排气阀3关闭；控制部1通电时，进气阀2关闭、排气阀3导通。所述进气阀2用于接通上游压力源和基础制动装置8内部的制动缸，排气阀3接通制动缸的排气通路。所述远程缓解控制回路包括电源7、操作按钮4、远程缓解继电器5和制动状态继电器6，其中远 程缓解继电器5、制动状态继电器6与远程缓解电磁阀的控制部1串联在电源7正负极之间，操作按钮4与远程缓解继电器5并联。
所述基础制动装置8内部的制动缸设置有两个排气通路，其中第一排气通路11用于正常空气制动缓解时，排放制动缸内部的压缩空气；第二排气通路12接通远程缓解电磁阀的排气阀3，在第一排气通路11故障时，开启排气阀3排放制动缸内部的压缩空气。所述第一排气通路11上设置有压力传感器9，实时监控基础制动装置中的制动缸压力，并上传至列车网络控制系统。
远程缓解电磁阀与列车紧急制动环路互锁，即远程缓解操作不影响紧急制动功能。在制动状态继电器6闭合的前提下，通过操作操作按钮4或闭合远程缓解继电器5，激活远程缓解功能，进气阀2截断上游压力源，同时基础制动装置制动缸内部的压缩空气通过排气阀3排出至大气。操作人员可在司机室或地面控制中心对基础制动装置进行远程缓解，无需行至客室逐个操作隔离塞门，可快速有效消除制动不缓解故障，省时省力，提高车辆可用性；同时避免误操作引发溜车的风险，提高使用安全性。
正常空气制动时，所需要的压缩空气通过进气阀2进入基础制动装置8制动缸内部。正常空气制动缓解时，制动缸内部的压缩空气通过第一排气通路11排向大气，但若该通路上硬件发生卡滞或其他故障时，会导致制动缸压缩空气无法排向大气，即引发制动不缓解故障。第二排气通12路作为远程缓解控制气路，是独立于第一排气通路11的，硬件上具备单独的电磁阀及活塞阀，可在处理故障时切换使用。
远程缓解电磁阀的控制部1正常情况下处于失电状态，被其控制的进气阀2处于导通状态，排气阀3处于关闭状态，即进气阀2上游的压缩空气可进入基础制动制动缸内部，通过压力调节单元后进行制动保压，制动缸内部的压缩空气与大气不联通。当控制部1得电时，远程缓解进气活塞阀将2处于不导通状态，截断上游压缩空气供给，同时排气阀3处于导通状态，即一方面使得上游压缩空气不再进入基础制动制动缸内部，避免”边充边排现象”；另一方面使得制动缸内部的压缩空气通过排气阀3排向大气，实现空气制动缓解的目的。远程缓解电磁阀的控制部1被串联在紧急制动环路中具有内部互锁功能，当紧急制动环路失电断开时，远程缓解电磁阀的控制部1同时失电，因此紧急制动状态下远程缓解功能失效，具有安全保障作用。
为了实现无人值守列车的远程缓解，以及进一步防止误操作导致列车溜车后果，远程缓解控制电路中串联一个远程缓解继电器5及制动状态继电器6，远程缓解继电器5只有在列车出现制动未缓解时能够被闭合，由地面控制中心远程控制；制动状态继电器6只有列车在非制动状态如牵引或惰行时才能够被闭合，只有当这两个继电器同时闭合时，远程缓解操作才有效；当两个继电器中只有一个闭合，则远程缓解操作无效。
远程缓解功能也可以通过操作按钮4触发，该按钮通常设置在列车司机室操控台上，为带指示灯的非自复位型，司机可通过操作该按钮激活制动缓解功能。司机只需要按动该按钮一次即可保持当前的状态，改变状态只需再一次按动按钮。当列车在正线运营发生重复性故障需要操作该按钮时，不用来回切换，只需正线操作一次，直至列车回库排查故障后再进行复位操作即可。按钮自带的指示灯可表明当前操作状态，指示灯亮代表制动缓解状态置位，指示灯灭代表制动缓解状态复位。通过操作按钮4激活远程缓解功能也需要结合制动状态继电器6状态，即只有在非制动状态时操作才有效。
压力传感器9会实时监控基础制动装置中的制动缸压力，并上传至列车网络控制系统。当压力大于某一阈值P1时，认为制动处于施加状态；当压力小于某一阈值P2时，认为制动处于缓解状态。当出现制动不缓解故障，使用远程缓解功能将制动缸内的压缩空气排空之后，压力传感器9检测到制动缸压力小于P2时，则认为制动处于缓解状态，制动不缓解故障的提示将消失，不影响列车牵引性能，列车可以继续正常运营。
使用上述远程缓解操作系统，首先，无需操作人员行至客室逐一操作截断塞门，通过地面控制中心或司机室一键操作即可进行空气制动完全缓解，省时省力。其次，控制电路与紧急制动环路互锁，远程缓解功能对紧急制动无效，紧急制动安全距离不受影响，保证运营安全；再次，远程缓解功能只有在非制动工况下才能被激活有效，进一步避免误操作导致溜车风险，保障使用安全。
上述实施例只为说明本实用新型的技术构思及特点，其目的在于让熟悉此项技术的人能够了解本实用新型的内容并据以实施，并不能以此限制本实用新型的保护范围。凡根据本实用新型主要技术方案的精神实质所做的修饰，都应涵盖在本实用新型的保护范围之内。

Claims (7)

  1. 一种用于轨道车辆空气制动远程缓解控制系统，其特征在于，包括远程缓解电磁阀及远程缓解控制回路；所述远程缓解电磁阀包括控制部(1)和进气阀(2)、排气阀(3)，其中控制部(1)串接在远程缓解控制回路上，进气阀(2)常开，排气阀(3)常闭；所述进气阀(2)用于接通上游压力源和基础制动装置(8)内部的制动缸，排气阀(3)接通制动缸的排气通路。
  2. 根据权利要求1所述的用于轨道车辆空气制动远程缓解控制系统，其特征在于，所述远程缓解控制回路包括电源(7)、操作按钮(4)、远程缓解继电器(5)和制动状态继电器(6)，其中远程缓解继电器(5)、制动状态继电器(6)与远程缓解电磁阀的控制部(1)串联在电源(7)正负极之间，操作按钮(4)与远程缓解继电器(5)并联。
  3. 根据权利要求2所述的用于轨道车辆空气制动远程缓解控制系统，其特征在于，所述基础制动装置(8)内部的制动缸设置有两个排气通路，其中第一排气通路(11)用于正常空气制动缓解时，排放制动缸内部的压缩空气；第二排气通路(12)接通远程缓解电磁阀的排气阀(3)，在第一排气通路(11)故障时，开启排气阀(3)排放制动缸内部的压缩空气。
  4. 根据权利要求3所述的用于轨道车辆空气制动远程缓解控制系统，其特征在于，所述第一排气通路(11)上设置有压力传感器(9)，实时监控基础制动装置中的制动缸压力，并上传至列车网络控制系统。
  5. 根据权利要求4所述的用于轨道车辆空气制动远程缓解控制系统，其特征在于，所述远程缓解电磁阀中控制部(1)断电时，进气阀(2)导通、排气阀(3)关闭；控制部(1)通电时，进气阀(2)关闭、排气阀(3)导通。
  6. 根据权利要求4所述的用于轨道车辆空气制动远程缓解控制系统，其特征在于，所述远程缓解继电器(5)由地面控制中心远程控制，只有在列车出现制动未缓解时能够被闭合；制动状态继电器(6)只有列车在非制动状态才能够被闭合。
  7. 根据权利要求6所述的用于轨道车辆空气制动远程缓解控制系统，其特征在于，所述操作按钮(4)设置在列车司机室操控台上，采用非自复位型按钮，司机通过操作该按钮激活制动缓解功能。
PCT/CN2023/140891 2022-12-23 2023-12-22 一种用于轨道车辆空气制动远程缓解控制系统 WO2024131921A1 (zh)

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