WO2009056306A1 - Ensemble valve pour commander un système de freinage d'un système de freinage de stationnement de véhicule ferroviaire - Google Patents

Ensemble valve pour commander un système de freinage d'un système de freinage de stationnement de véhicule ferroviaire Download PDF

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Publication number
WO2009056306A1
WO2009056306A1 PCT/EP2008/009153 EP2008009153W WO2009056306A1 WO 2009056306 A1 WO2009056306 A1 WO 2009056306A1 EP 2008009153 W EP2008009153 W EP 2008009153W WO 2009056306 A1 WO2009056306 A1 WO 2009056306A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
valve
brake cylinder
spring brake
solenoid valve
Prior art date
Application number
PCT/EP2008/009153
Other languages
German (de)
English (en)
Inventor
Sebastian Louca
Original Assignee
Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
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 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH filed Critical Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
Publication of WO2009056306A1 publication Critical patent/WO2009056306A1/fr

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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
    • 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
    • B60T13/24—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 the fluid being gaseous
    • B60T13/26—Compressed-air systems
    • B60T13/266—Systems with both direct and indirect application, e.g. in railway vehicles
    • 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
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/08—Brake cylinders other than ultimate actuators

Definitions

  • Valve arrangement for controlling a brake system of a parking brake system of a rail vehicle
  • the invention is based on a valve arrangement for controlling a parking brake system of a rail vehicle or a rail vehicle train containing at least one spring brake cylinder, with at least one pressure sensor for generating a pressure signal dependent on the pressure in the spring brake cylinder or a pressure derived therefrom, according to the preamble of claim 1.
  • parking brake systems of rail vehicles usually use spring brake cylinders, which include a supported against a storage spring spring accumulator piston, wherein the spring brake is a passive brake in which the spring brake cylinder is ventilated to release and vented for application.
  • a known valve arrangement for controlling a parking brake system of a rail vehicle which includes at least one spring brake cylinder
  • compressed air passes through a pressure reducing valve into the valve device, which is controlled by an operator and aerates or bleeds the spring brake cylinder.
  • the pressure sensor is used via the pressure measurement in the spring brake cylinder to detect whether the parking brake is applied or released. Since the compressed air for the parking brake usually comes from the looped by the Schienenindustrialzug main air reservoir line, which is under a pressure of 10 bar (10 x 10 5 Pa) and not all spring brake cylinders are designed for such a high pressure, the pressure reducing valve to Pressure reduction of Pressure to a given maximum pressure.
  • such pressure reducing or pressure control valves require a certain manufacturing and assembly costs.
  • the invention is based on the object to further develop a valve assembly of the type mentioned in such a way that it is cheaper and simpler.
  • At least one solenoid valve is provided, which is electrically controlled as a function of the pressure signal of the pressure sensor such that the pressure in the spring brake cylinder is limited to a predetermined maximum pressure.
  • the pressure sensor in conjunction with the at least one solenoid valve ensures that the pressure in the spring-loaded cylinder does not exceed the predetermined maximum pressure. Then can be dispensed with the pressure reducing valve of the prior art, which brings a certain manufacturing and assembly costs savings.
  • a further controlled by an operable by an operator parking brake operating device valve means for increasing the pressure, pressure holding and pressure lowering of the pressure in the spring brake cylinder wherein the valve means includes a pulse valve.
  • the at least one solenoid valve of the valve egg ni direction Viewed from a pressure medium source, the at least one solenoid valve of the valve egg ni direction, for example, upstream. In this case, this is controlled depending on the pressure signal of the pressure sensor Solenoid valve excluding the pressure limit of the pressure in the spring brake cylinder, while the operation of the spring brake by pressure increase, pressure hold and pressure lowering via the valve device or the pulse valve.
  • At least one inlet solenoid valve for venting the spring brake cylinder and at least one outlet valve for venting the spring brake cylinder is provided, wherein the inlet solenoid valve is electrically controlled depending on the pressure signal of the pressure sensor, that the pressure in the spring brake cylinder is limited to the predetermined maximum pressure , Furthermore, the inlet solenoid valve and the outlet solenoid valve for pressure increase, pressure holding and pressure lowering in the spring brake cylinder of a
  • Parking brake operating device controlled by an operator.
  • the inlet solenoid valve performs a dual function by on the one hand ensures the pressure limit in the spring brake cylinder and the other is also responsible for the ventilation of the same.
  • FIG. 1 shows a schematic circuit diagram of a valve arrangement according to a preferred embodiment of the invention
  • FIG. 2 shows a schematic circuit diagram of a valve arrangement according to a further embodiment.
  • Valve assembly 1 for controlling a at least one spring brake cylinder-containing parking brake system of a rail vehicle or a Schienentechzugs is drawn for reasons of scale only leading to the spring brake cylinder pressure line 2, but not the spring brake cylinder itself, the structure and function is well known and should therefore not be further described here.
  • a pressure sensor or pressure switch 4 is arranged, which measures the pressure prevailing in the leading to the spring brake cylinder pressure line 2 pressure and dependent generates, for example, an electrical pressure signal.
  • the pressure signal is controlled via a preferably electrical signal line 6 in a preferably electronic control unit 8 of a solenoid valve 10.
  • the solenoid valve 10 is also connected in the pressure line 2 and serves to limit the pressure in the spring brake cylinder.
  • the solenoid valve 10 is a 2/2-way solenoid valve, with a passage position and a blocking position, which is controlled by the control unit 8 via a control line 12.
  • a valve device 14 is connected in the pressure line 2 and designed to increase the pressure, pressure holding and pressure lowering of the pressure in the spring brake cylinder, for example, as an electromagnetic, by another electronic control unit 16 via a further control line 18 electrically controllable pulse valve.
  • the further control unit 16 is controlled by a preferably not shown parking brake control device by a preferably electrical control line 20.
  • a preferably electrical control line 20 About the parking brake control device, an operator, such as a driver of the rail vehicle or Schienentechzugs enter control commands, which are implemented by the control unit 16 in a 14 effected by the valve means Drucksteigem, maintaining pressure or lowering the pressure in the pressure line 2.
  • the pressure line 2 is connected to a looped by the rail vehicle or by the rail vehicle train main air reservoir line 22, which, for example, a pressure of 10 bar (10 x 10 5 Pa) leads.
  • the pressure line 2 therefore includes a portion 24 upstream of the solenoid valve 10, which is under the pressure of the main air reservoir line 22 and a portion 26 downstream of the solenoid valve 10 with the valve device 14.
  • a throttle 28 is provided in the portion 26 downstream of the solenoid valve 10, more precisely between the valve device 14 and the Pressure sensor 4, a throttle 28 is provided.
  • the solenoid valve 10 is controlled depending on the pressure signal of the pressure sensor 4 by the control unit 8 so that the pressure in the solenoid valve 10 downstream portion 26 of the pressure line 2 or in the spring brake cylinder is limited or adjusted to a predetermined maximum pressure.
  • a limitation or regulation can be realized for example by a corresponding logic circuit in the control unit 8.
  • a corresponding signal is input via the parking brake operating device, which controls the control device 16 via the further control line 20, which in turn controls the pulse valve 14, which is then switched to vent the spring brake cylinder in forward position.
  • the solenoid valve 10 is also connected in the passage position.
  • the pulse valve 14 is in his Deactivated ventilation position, whereby the spring brake cylinder is vented and thus clamped.
  • the further control unit 16 and thus the valve device 14 and the pulse valve are controlled by the parking brake operating device by an operator such that the pressure in the spring brake cylinder can be increased, maintained or lowered.
  • the upstream solenoid valve 10 is controlled by the control unit 8 and the pressure signals of the pressure sensor 4 so that the pressure in the spring brake cylinder is limited to a maximum pressure.
  • the inlet solenoid valve 10a performs a dual function by on the one hand provides for the pressure limit in the spring brake cylinder and on the other hand is responsible for the ventilation of the same.
  • the inlet solenoid valve 10a is actuated via the control line 12 from the control unit 8, which in turn receives the pressure signals from the pressure sensor 4 via the signal line 6.
  • the inlet solenoid valve 10a and the outlet solenoid valve 10b are controllable via a further control line 20 and the control unit 8 from the parking brake operating device by the operator.
  • the inlet solenoid valve 10a and the outlet solenoid valve 10b can perform the functions of increasing pressure, Pressure maintenance and pressure lowering in the spring brake cylinder realize.
  • intake and exhaust solenoid valves 10a, 10b are each formed as 2/2 way solenoid valves, with one port of the inlet solenoid valve 10a connected to the main air tank passage 22 and another port of the inlet solenoid valve 10a connected to the pressure line 2, while one port of the Outlet solenoid valve 10b with the pressure line 2 and another port of the outlet solenoid valve 10b with a vent or pressure sink is in communication.
  • Main air reservoir line 22 is controlled to the spring brake cylinder. Then, when the predetermined maximum pressure is reached during venting and the pressure sensor 4 sends a corresponding signal to the control unit 8, the inlet solenoid valve 10a switches to its blocking position in which the compressed air connection between the main air reservoir line and the spring brake cylinder is interrupted. As a result, a return flow of compressed air from the spring brake cylinder and a subsequent flow from the main air reservoir line 22 is avoided.
  • the inlet solenoid valve 10a is switched to its blocking position and the outlet solenoid valve 10b in its venting position, whereby the spring brake cylinder is brought into connection with the vent, whereby the pressure in the spring brake cylinder drops.
  • the solenoid valves 10, 10a, 10b could also be controlled purely pneumatically.
  • the pressure sensor 4 generates a pneumatic pressure signal, which is then fed through the then pneumatic line 6 to the control unit 8, which includes a pneumatic logic circuit, which on the pneumatic pressure signal, the solenoid valve 10 and the solenoid valves 10a, 10b pneumatically controls.
  • the parking brake control device a pneumatic signal which is introduced via the then pneumatic line 20 to the controller 8 and 16 respectively. It is also conceivable a mixture of pneumatic and electrical control of the valve device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

L'invention concerne un ensemble valve (1) pour commander un système de freinage de stationnement d'un véhicule ferroviaire ou d'un ensemble de véhicules ferroviaires, ledit système de freinage comprenant au moins un cylindre de frein à ressort accumulateur. Cet ensemble valve (1) comprend au moins un capteur de pression (4) destiné à produire un signal de pression en fonction de la pression dans le cylindre de frein à ressort accumulateur ou en fonction d'une pression dérivée de celle-ci. Selon l'invention, il est prévu au moins une électrovalve (10) qui est commandée électriquement en fonction du signal de pression du capteur de pression (4) de telle sorte que la pression dans le cylindre de frein à ressort accumulateur ne dépasse pas une pression maximale prédéterminée.
PCT/EP2008/009153 2007-11-02 2008-10-30 Ensemble valve pour commander un système de freinage d'un système de freinage de stationnement de véhicule ferroviaire WO2009056306A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007052291.8 2007-11-02
DE102007052291.8A DE102007052291B4 (de) 2007-11-02 2007-11-02 Ventilanordnung zur Steuerung einer Feststellbremsanlage eines Schienenfahrzeugs

Publications (1)

Publication Number Publication Date
WO2009056306A1 true WO2009056306A1 (fr) 2009-05-07

Family

ID=40436411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/009153 WO2009056306A1 (fr) 2007-11-02 2008-10-30 Ensemble valve pour commander un système de freinage d'un système de freinage de stationnement de véhicule ferroviaire

Country Status (2)

Country Link
DE (1) DE102007052291B4 (fr)
WO (1) WO2009056306A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2058654A1 (de) * 1970-11-28 1972-06-15 Westinghouse Bremsen Und Appba Mehrstufige Bremsventileinrichtung fuer elektropneumatisch betaetigbare Federspeicherbremsanlagen,insbesondere in Schienenfahrzeugen
GB1506005A (en) * 1974-06-17 1978-04-05 Gen Signal Corp Brake system for a light rail vehicle
EP1504975A1 (fr) * 2003-08-08 2005-02-09 WABCO GmbH & CO. OHG Système de freinage pour un véhicule utilisant un moyen de pression

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1809718A1 (de) * 1968-11-19 1970-06-11 Knorr Bremse Gmbh Druckluftbremseinrichtung,insbesondere fuer Schienenfahrzeuge
DE2840262C3 (de) * 1978-09-15 1995-04-20 Knorr Bremse Ag Einrichtung zur Steuerung pneumatischer oder elektro-pneumatischer Bremsen von Schienenfahrzeugen
DE19537622B4 (de) * 1995-10-09 2006-11-23 Daimlerchrysler Ag Einrichtung für ein Schienenfahrzeug mit durchgehender Hauptluftleitung und Federspeicher-Feststellbremse
DE19848990A1 (de) * 1998-10-23 2000-04-27 Knorr Bremse Systeme Bremssystem für ein Schienenfahrzeug
DE10247812C1 (de) * 2002-10-14 2003-10-30 Knorr Bremse Systeme Verfahren und Vorrichtung zum Belüften und Entlüften von Federspeicherzylindern sowie Feststellbremsanlage mit derartigen Federspeicherzylindern
DE10324723B4 (de) * 2003-05-30 2013-09-19 Wabco Gmbh Federspeicher-Feststellbremse für Fahrzeuge mit Fremdkraftbremsanlage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2058654A1 (de) * 1970-11-28 1972-06-15 Westinghouse Bremsen Und Appba Mehrstufige Bremsventileinrichtung fuer elektropneumatisch betaetigbare Federspeicherbremsanlagen,insbesondere in Schienenfahrzeugen
GB1506005A (en) * 1974-06-17 1978-04-05 Gen Signal Corp Brake system for a light rail vehicle
EP1504975A1 (fr) * 2003-08-08 2005-02-09 WABCO GmbH & CO. OHG Système de freinage pour un véhicule utilisant un moyen de pression

Also Published As

Publication number Publication date
DE102007052291B4 (de) 2015-06-25
DE102007052291A1 (de) 2009-05-14

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