US20140199929A1 - Device and method for active pressure regulation in rail vehicles - Google Patents

Device and method for active pressure regulation in rail vehicles Download PDF

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Publication number
US20140199929A1
US20140199929A1 US14/239,306 US201214239306A US2014199929A1 US 20140199929 A1 US20140199929 A1 US 20140199929A1 US 201214239306 A US201214239306 A US 201214239306A US 2014199929 A1 US2014199929 A1 US 2014199929A1
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United States
Prior art keywords
rail vehicle
internal pressure
ventilation
measuring
pressure
Prior art date
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Abandoned
Application number
US14/239,306
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English (en)
Inventor
Timothy Ruiter
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Siemens AG
Original Assignee
Siemens AG
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.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RUITER, TIMOTHY
Publication of US20140199929A1 publication Critical patent/US20140199929A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D27/00—Heating, cooling, ventilating, or air-conditioning

Definitions

  • the invention relates to a device and a method for active pressure regulation in a rail vehicle.
  • the air conditioning system in a rail vehicle must perform different functions. Said functions include not only the treatment of incoming air to set a comfortable interior environment at the different seasons, but also the filtering of the external air. Moreover, the air conditioning system has to ensure that an adequate overpressure is set in the rail vehicle compared to the ambient pressure. 20 Pa to 50 Pa overpressure relative to the ambient pressure is considered to be an adequate overpressure here. The provision of a suitable overpressure is necessary in a rail vehicle in order to prevent unconditioned external air being able to enter into the interior through leaks of the rail vehicle and hence to adversely affect passenger comfort.
  • the internal vehicle pressure in a rail vehicle depends to a decisive extent on the sealing of the body of the rail vehicle.
  • the sealing of the body of the rail vehicle is thereby especially dependent on the quality of assembly during manufacture, the adjustment of the external doors, the number of drainage openings and the quality and the condition of the seals in the individual vehicles. It is to be noted here that generally the quality and the condition of the seals is not constant across a fleet of vehicles.
  • the air conditioning system has to maintain the internal vehicle pressure over the entire life cycle of the rail vehicle and make allowance for the different wear of the individual vehicles.
  • the external doors are adjusted a number of times more or less uniformly. This increases the wear on the seals which can become unsealed during the period of use until the next service, whereby the internal pressure of the rail vehicle is uncontrollably impaired.
  • the object of the present invention is therefore to specify a device and a method with which it is possible to ensure constant internal pressure within the rail vehicle over the entire life cycle of the vehicle, even with different sealing and variable wear of the seals.
  • a device for active regulation of the internal vehicle pressure in a rail vehicle comprising an aeration device for increasing the internal pressure in the rail vehicle, a ventilation device for reducing the internal pressure in the rail vehicle, a measuring device for measuring the internal pressure in the rail vehicle, which is characterized in that the same comprises a control device that is connected for signaling purposes at least to the ventilation device for reducing the internal pressure and the measuring device and the ventilation device for reducing the internal pressure can be controlled by means of the control device depending on the internal pressure determined by the measuring device.
  • the provision of ventilation according to the invention which is regulated depending on the measured internal vehicle pressure in the rail vehicle, enables the maintenance of a desired overpressure in the interior of the vehicle, even if the leak, i.e. the discharge of interior air via leaks, is variable. If the leakage of the rail vehicle increases, e.g. as a result of a changed setting of the external doors or through wear of the seals, the pressure loss resulting from the leakage can be compensated by reducing the ventilation by means of the ventilation device. This can take place under different operating conditions and wear states of the rail vehicle over the entire life cycle.
  • the control device comprises an input channel for introducing a diagnostic signal for indicating the open and/or closed state of an external door and/or a window of the rail vehicle.
  • a diagnostic signal for indicating the open and/or closed state of an external door and/or a window of the rail vehicle.
  • an aeration device is to be understood e.g. to mean an air conditioning system of the rail vehicle that induces external air, processes said air and introduces it into the interior of the rail vehicle.
  • An overpressure is built up in the interior of the rail vehicle by means of said introduction.
  • a ventilation device is to be understood e.g. to mean an external valve, a ventilation flap or a fan (ventilator).
  • a measuring device for measuring the internal pressure in the rail vehicle is to be understood e.g. to mean a pressure sensor or a manometer.
  • the measuring device determines the internal pressure in the rail vehicle at the train and/or carriage level. Both when determining the internal pressure at the train level and when determining the internal pressure at the carriage level, it can be provided according to the invention that a plurality of measurement devices disposed in a distributed manner in the train or carriage are used for determining the internal pressure in the rail vehicle.
  • the internal pressure values determined by the individual measurement devices are combined to form an average internal pressure measurement value. It can also be provided that determining the internal pressure takes place section by section within the rail vehicle.
  • the ventilation device is disposed such that the occurrence of air flows adversely affecting passenger comfort within the areas of the rail vehicle used by passengers is prevented.
  • the ventilation devices are disposed in the ceiling region and/or in the floor region of the rail vehicle.
  • a plurality of ventilation devices are provided in the rail vehicle, which are disposed in a distributed manner such that air flows adversely affecting passenger comfort are prevented or at least reduced.
  • the object of the invention is achieved by a method for active pressure regulation of the internal pressure in a rail vehicle that comprises the process steps:
  • adjusting the internal pressure within the rail vehicle by means of a ventilation device controlled by means of a control device, wherein the control device controls the ventilation device depending on the internal pressure determined by the measurement device provided that a specified internal pressure is built up within the rail vehicle.
  • the control of the ventilation device takes place within the scope of the climate control of the rail vehicle.
  • the control device is integrated within the climate control device. This enables the aeration device and the ventilation device to take account of each other, so that in addition to an increase of the quantity of air discharged from the rail vehicle by means of the ventilation device, the air quantity delivered to the interior of the rail vehicle by means of the aeration system is reduced.
  • the ventilation device comprises an external valve, a ventilation flap and/or a fan (ventilator) and the regulation of the internal pressure takes place by opening or closing the external valve and/or the aeration flap and/or by means of regulating the revolution rate of the fan.
  • the determination of the internal pressure only takes place while the external doors and/or windows of the rail vehicle are closed and in the stationary state, i.e. when the rail vehicle is stationary.
  • the state of the doors and/or windows of the rail vehicle is polled by the control device.
  • polling can e.g. be carried out by means of door and/or window sensors.
  • status information can be called up from the train control system of the rail vehicle and taken into account. It is ensured that the internal pressure is only analyzed in the stationary state by means of the speed of travel signal in the train control system.
  • measuring the internal pressure is not carried out continuously during the entire driving operation, but at intervals, e.g. at intervals of minutes, hours, days or months.
  • measuring the internal pressure is only performed within the framework of the service intervals of the rail vehicle, e.g. in the fall or in the spring, and adjustment of the ventilation power to the aeration power occurs during the corresponding inspection.
  • FIGURE An exemplary embodiment of the invention is explained below in detail below using a FIGURE.
  • FIGURE An exemplary embodiment of the invention is explained below in detail below using a FIGURE.
  • FIG. 1 shows the schematic structure of a device for active pressure regulation in a rail vehicle.
  • FIG. 1 shows the schematic structure of a device for active pressure regulation in a rail vehicle 900 .
  • the rail vehicle comprises an aeration device 120 , which can be formed e.g. by an air conditioning system.
  • the aeration system 120 delivers external air to the interior of the rail vehicle 900 , whereby an overpressure builds up within the rail vehicle 900 compared to the ambient pressure outside the rail vehicle 900 .
  • a diagnostic signal 210 passes to a control device 200 , which signals the open or closed state of the external doors 910 and/or windows 920 of the rail vehicle 900 .
  • a measurement signal representing the internal pressure in the rail vehicle 900 that is determined by means of the measurement device 160 passes to the control device 200 by means of the measurement value line 215 .
  • the control device 200 analyzes the signal of the measuring device 160 . If the resulting value of the internal pressure in the rail vehicle relative to the ambient pressure lies above a threshold value that can be specified of e.g. 50 Pa, the control device 200 activates via control lines 212 , 213 , 214 a ventilation device 141 , 142 , 143 by means of which the internal pressure can be regulated according to the specified threshold value.
  • a threshold value that can be specified of e.g. 50 Pa
  • the control device 200 activates via control lines 212 , 213 , 214 a ventilation device 141 , 142 , 143 by means of which the internal pressure can be regulated according to the specified threshold value.
  • This enables e.g. an external valve 141 , a ventilation flap 142 , a fan (ventilator) 143 , or a combination of said ventilation devices to be disposed in the rail vehicle as a ventilation device.
  • the ventilation devices 141 , 142 , 143 are thereby disposed such that the internal pressure escaping from the rail vehicle via said devices does not cause air flows within the areas of the rail vehicle used by passengers that adversely affect passenger comfort.
  • the control device 200 sends control signals to the aeration device 120 via a control line 211 in order to also regulate the aeration device 120 depending on the determined internal pressure in the rail vehicle 900 .
  • the functions of the aeration device 120 and of the ventilation devices 141 , 142 , 143 can thus be adapted with respect to each other.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
US14/239,306 2011-08-17 2012-07-13 Device and method for active pressure regulation in rail vehicles Abandoned US20140199929A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110081070 DE102011081070A1 (de) 2011-08-17 2011-08-17 Vorrichtung und Verfahren zur aktiven Druckregelung in Schienenfahrzeugen
PCT/EP2012/063769 WO2013023851A1 (de) 2011-08-17 2012-07-13 Vorrichtung und verfahren zur aktiven druckregelung in schienenfahrzeugen.

Publications (1)

Publication Number Publication Date
US20140199929A1 true US20140199929A1 (en) 2014-07-17

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ID=46545369

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/239,306 Abandoned US20140199929A1 (en) 2011-08-17 2012-07-13 Device and method for active pressure regulation in rail vehicles

Country Status (6)

Country Link
US (1) US20140199929A1 (zh)
EP (1) EP2723621B1 (zh)
CN (1) CN204172918U (zh)
DE (1) DE102011081070A1 (zh)
RU (1) RU145083U1 (zh)
WO (1) WO2013023851A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019109564B3 (de) * 2019-04-11 2020-09-03 Daimler Ag Fahrzeug und Verfahren zur Detektion von Schäden an einem Fahrzeug
CN114194236B (zh) * 2020-09-18 2023-05-12 中车青岛四方机车车辆股份有限公司 一种轨道车辆开关门控制方法及控制系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5984773A (en) * 1996-07-23 1999-11-16 Gec Alsthom Transport Sa Method and apparatus for regulating the internal pressure of a ventilated, closed space subjected to variations in external pressure
US20020056286A1 (en) * 2000-07-31 2002-05-16 The Boeing Company Aircraft air conditioning system and method
US20100216384A1 (en) * 2009-02-26 2010-08-26 Ford Global Technologies, Llc Air extractors
US9086226B2 (en) * 2008-11-17 2015-07-21 Robert Bosch Gmbh Control device for ventilation and air conditioning systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3801891C1 (zh) * 1988-01-23 1989-09-07 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De
DE10014497C1 (de) * 2000-03-23 2001-08-09 Daimler Chrysler Ag System zur Steigerung der Kondition
DE10208006A1 (de) * 2002-02-26 2003-09-11 Lutz Boeck Verdrängungslüfter-Druckschutzsystem
DE10233517A1 (de) * 2002-07-23 2004-02-12 Lex, Ernst, Dipl.-Ing. Verfahren und Vorrichtung zum Belüften eines Fahrzeuginnenraumes
DE102007019014A1 (de) * 2007-04-18 2008-10-23 Thyssenkrupp Transrapid Gmbh Verfahren und Vorrichtung zur Vermeidung schneller Änderungen des Innendrucks in einem geschlossenen Raum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5984773A (en) * 1996-07-23 1999-11-16 Gec Alsthom Transport Sa Method and apparatus for regulating the internal pressure of a ventilated, closed space subjected to variations in external pressure
US20020056286A1 (en) * 2000-07-31 2002-05-16 The Boeing Company Aircraft air conditioning system and method
US9086226B2 (en) * 2008-11-17 2015-07-21 Robert Bosch Gmbh Control device for ventilation and air conditioning systems
US20100216384A1 (en) * 2009-02-26 2010-08-26 Ford Global Technologies, Llc Air extractors

Also Published As

Publication number Publication date
WO2013023851A1 (de) 2013-02-21
CN204172918U (zh) 2015-02-25
EP2723621A1 (de) 2014-04-30
RU145083U1 (ru) 2014-09-10
EP2723621B1 (de) 2015-08-26
DE102011081070A1 (de) 2013-02-21

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Date Code Title Description
AS Assignment

Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RUITER, TIMOTHY;REEL/FRAME:032337/0580

Effective date: 20140117

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION