EP3877226A1 - Agencement de soupape et procédé de commande de pression - Google Patents

Agencement de soupape et procédé de commande de pression

Info

Publication number
EP3877226A1
EP3877226A1 EP19794446.5A EP19794446A EP3877226A1 EP 3877226 A1 EP3877226 A1 EP 3877226A1 EP 19794446 A EP19794446 A EP 19794446A EP 3877226 A1 EP3877226 A1 EP 3877226A1
Authority
EP
European Patent Office
Prior art keywords
valve
control
pressure
port
output port
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP19794446.5A
Other languages
German (de)
English (en)
Inventor
René Jonkmann
Alexander Krumrey
Andreas König
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge 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 fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP3877226A1 publication Critical patent/EP3877226A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B60T15/36—Other control devices or valves characterised by definite functions
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • B60T8/341—Systems characterised by their valves
    • B60T8/342—Pneumatic systems
    • 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
    • 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
    • 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
    • B60T8/362—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in pneumatic systems
    • 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
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/10—ABS control systems

Definitions

  • the present invention relates to a valve arrangement and a method for pressure control at an output port, in particular to a valve arrangement with an optimized air flow to increase its service life.
  • ABS anti-lock braking systems
  • FIG. 3A and 3B show an example of such a conventional valve arrangement that is used for ABS pressure control, FIG. 3A showing a circuit diagram and FIG. 3B showing an exemplary implementation of the valve arrangement.
  • a first valve 10 and a second valve 20 are arranged in series between an input port P1 and a pressure sink S.
  • the first valve 10 includes a control input 12, which is connected to a first control valve 15.
  • the first control valve 15 connects the control connection 12 of the first valve 10 either to the pressure sink S or to the input port P1.
  • the second valve 20 also includes a control input 22, which is controlled via a second control valve 25.
  • the second control valve 25 connects the control connection 22 of the second valve 20 either to the pressure sink S or also to the input port P1.
  • a control pressure line 40 is formed between the input port P1 and the second control valve 25, so that the pressure from the input port P1 is provided as control pressure at the control input 22.
  • FIG. 3B shows a possible concrete implementation of the circuit from FIG.
  • All pressure sinks S are connected here to a ventilation port P3, which is connected, for example, to an external environment.
  • the first valve 10 comprises a first membrane 13 and the second valve 20 a second membrane 23.
  • the first membrane 13 opens and / or closes the connection between the input port P1 and the output port P2, depending on a pressure at the
  • Control port 12 When the control port 12 is vented, the first valve 10 closes, when the control port 12 is vented, the first valve 10 opens.
  • the second diaphragm 23 opens and / or closes the connection between the output port P2 and the pressure sink S, and depending on a pressure on the
  • Control port 22 When the control port 22 is vented, the second valve 20 closes; when the control port 22 is vented, the second valve 20 opens.
  • the drive pressure line 40 is as a channel between the input ports P1 and the second control valve 25 is formed.
  • the first control valve 15 is pretensioned in such a way that it ventilates the control connection 12 of the first valve 20 in the de-energized state. Therefore, the first valve 10 will open automatically when a positive pressure is applied to the input port P1.
  • the second control valve 25 is pretensioned in such a way that in the de-energized state it forwards the compressed air at the input port P1 via the control pressure line 40 to the control connection 22 of the second valve 20. Therefore, on the back of the second diaphragm 23, when the second control valve 25 is not activated, the pressure of the latter is continuously present
  • Valve control device is desirable.
  • Exemplary embodiments relate to a valve arrangement for pressure control at an output port.
  • the valve assembly includes an input port, a
  • the valve arrangement further comprises a first control valve that controllably connects or ventilates the first control port to the input port and a second control valve that controllably connects or ventilates the first control port to the output port.
  • the first control valve is a solenoid valve, which ventilates the first control connection when de-energized.
  • the second control valve can also be a
  • Control port connects to the output port.
  • the first valve comprises a first membrane, which opens or closes a connection between the input port and the output port when the first valve is actuated.
  • the second valve can comprise a second membrane which, when the second valve is actuated, connects between the
  • Output port and the pressure sink opens or closes.
  • the first diaphragm is optionally pre-stressed (e.g. by a spring) in order to close the first valve when the inlet port is depressurized.
  • the second is optional
  • Diaphragm preloaded e.g. by another spring in order to close the second valve at the outlet port when there is no pressure.
  • the valve arrangement optionally includes a throttle in order to limit an inflow (e.g. in air) via the inlet port.
  • a throttle in order to limit an inflow (e.g. in air) via the inlet port.
  • Vehicle brake especially for commercial vehicles, that a previously defined
  • Output port with a brake cylinder (a brake of the vehicle) is connectable.
  • an ABS intervention can vent the output port through the second valve and thus briefly release the brake.
  • Valve arrangement as previously defined or with an anti-lock braking system as previously defined.
  • Exemplary embodiments also relate to a method for controlling a pressure at an output port by means of a valve device as previously defined.
  • the process includes:
  • Embodiments lowered the load on the second membrane (outlet membrane) to a level of the first membrane (holding membrane). This results in a significantly longer service life for the entire module. Basically, the
  • the outlet membrane is no longer significantly more stressed than the inlet membrane. Cracks in the outlet diaphragm can be avoided by lowering the control pressure or only appear significantly later.
  • FIG. 1 shows a circuit diagram of a valve arrangement for pressure control according to a
  • FIG. 2 shows a possible implementation of the valve arrangement from FIG. 1.
  • 3A shows a circuit diagram of a conventional valve arrangement.
  • 3B shows an implementation of the conventional valve arrangement.
  • FIG. 1 shows a circuit diagram for a valve arrangement for pressure control according to an exemplary embodiment of the present invention. As in the conventional
  • the 3A are arranged in series between an input port P1 and a pressure sink S, a first valve 110 (for example a holding valve) and a second valve 120 (for example an outlet valve).
  • the pressure sink S can or have multiple openings to an environment or comprise one or more areas with reduced pressure.
  • the first valve 110 includes one
  • Control input 112 which is connected to a first control valve 115.
  • the first control valve 115 connects the control port 112 of the first valve 110 either to the pressure sink S or to the input port P1.
  • the second valve 120 also includes a control input 122 which is controlled via a second control valve 125.
  • the second control valve 125 connects the control port 122 of the second valve 120 either to the pressure sink S or to the output port P2.
  • the dashed lines are intended to indicate a possible guidance of the first valve 110 and / or the second valve 120 when the valve is confirmed.
  • Embodiments a drive pressure line 140 available, the
  • Output port P2 connects to the second control valve 125, so that the control pressure at the control input 22 is provided by the output port P2 and not by the input port P1.
  • the first control valve 115 and / or the second control valve 125 is / are, for example, a pre-loaded solenoid valve (s) that are in a de-energized state
  • the first control valve 115 thus connects the control port 112 of the first valve 110 to the pressure sink S in the de-energized state and to the input port P1 in the energized state (activated state).
  • Control valve 25 connects the control port 122 of the second valve 120 to the output port P2 in the de-energized state and to the pressure sink S in the activated state.
  • a pressure at the input port P1 is passed through the first valve 110 to the output port P2 (for example when the brake is actuated).
  • This connection can be specifically interrupted or held by switching the first valve 110 through the control valve 115.
  • the pressure at the output port P2 is passed through the second control valve 125 to the control port 122 of the second valve 120.
  • the second control valve 125 is not actuated, the connection between the output port P2 and the pressure sink S remains interrupted and the brake pressure is maintained.
  • the pressure at the output port P2 is to be significantly reduced, at least temporarily. This is achieved by activating the second control valve 125 (it is energized), so that the control connection 122 on the second valve 120 is vented. This causes the outlet port P2 to be vented by opening the connection to the pressure sink S through the second valve 120.
  • FIG. 2 shows a possible concrete implementation of the circuit from FIG. 1, which in turn is similar to the implementation from FIG. 3A.
  • all pressure sinks S are connected to a vent port P3, which in turn can be connected to an external environment.
  • a vent port P3 which in turn can be connected to an external environment.
  • the first valve 110 includes a first diaphragm 113 and the second valve 120 includes a second diaphragm 123.
  • the one shown includes
  • the first membrane 113 opens and / or closes the connection between the
  • the first valve 110 closes when the
  • Control port 112 is vented, the first valve 110 opens.
  • the second diaphragm 123 opens and / or closes the connection between the output port P2 and the pressure sink S, depending on a pressure at the control port 122 of the second valve 120.
  • the second valve 120 closes when the control connection 122 is vented, the second valve 120 opens the connection to the pressure sink S.
  • the drive pressure line 140 is between the output port P2 and the second control valve 125 and the pressure at the output port P2 is used as a control pressure for venting the second valve 20 - and not, as in the conventional arrangement, the pressure from the input port P1.
  • the first control valve 115 is pretensioned by means of a spring, for example, in such a way that it ventilates the control connection 112 of the first valve 110 in the currentless state. Therefore, the first valve 110 will automatically open when a positive pressure is applied to the input port P1.
  • the second control valve 125 is also biased by means of a spring in such a way that, when de-energized, the compressed air is above the
  • Control pressure line 140 forwards to the control port 122 of the second valve 120. Therefore, the pressure from the output port P2 is continuously applied to the back of the second membrane 123.
  • the exemplary anti-lock braking system is to intervene (the pressure at the output port P2 is to be briefly or pulsedly reduced, for example), this is done by opening the second valve 120, whereby the output port P2 is connected to the pressure sink S (P3).
  • the second control valve 125 is briefly energized, which causes the control connection 122 to be vented, so that the second diaphragm 122 opens the opening to the pressure sink S.
  • a new venting of the control port 122 by de-energizing the second control valve 125 increases the pressure at the control port 122 to the pressure from the output port P2.
  • the same pressures are then present on both sides of the second membrane 123.
  • the second diaphragm 123 is prestressed (e.g. via a spring), the second diaphragm 123 closes the opening in this case
  • the second membrane 123 closes an opening to a flow channel located above, which is connected via a funnel-shaped structure to the pressure sink S at the vent port P3 (shown only schematically in FIG. 2, since the connection is located outside the drawing plane).
  • Realization of the invention may be essential.

Landscapes

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

Abstract

L'invention concerne un agencement de soupape destiné à une commande de pression au niveau d'un orifice de sortie (P2). L'agencement de soupape comprend un orifice d'entrée (P1), un puits de pression (S), une première soupape (110) pourvue d'un premier raccordement de commande (112), et une seconde soupape (120) pourvue d'un second raccordement de commande (122), qui sont agencées en série entre l'orifice d'entrée (P1) et le puits de pression (S), et entre lesquelles l'orifice de sortie (P2) bifurque. L'agencement de soupape comprend en outre une première soupape de commande (115) qui relie ou dépressurise le premier raccordement de commande (112) avec l'orifice d'entrée (P1) de façon commandable, et une seconde soupape de commande (125) qui relie ou dépressurise le second raccordement de commande (122) avec l'orifice de sortie (P2) de façon commandable.
EP19794446.5A 2018-11-07 2019-10-17 Agencement de soupape et procédé de commande de pression Withdrawn EP3877226A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018127822.5A DE102018127822A1 (de) 2018-11-07 2018-11-07 Ventilanordnung und ein Verfahren zur Drucksteuerung
PCT/EP2019/078301 WO2020094362A1 (fr) 2018-11-07 2019-10-17 Agencement de soupape et procédé de commande de pression

Publications (1)

Publication Number Publication Date
EP3877226A1 true EP3877226A1 (fr) 2021-09-15

Family

ID=68344790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19794446.5A Withdrawn EP3877226A1 (fr) 2018-11-07 2019-10-17 Agencement de soupape et procédé de commande de pression

Country Status (7)

Country Link
US (1) US20210402971A1 (fr)
EP (1) EP3877226A1 (fr)
JP (1) JP7203967B2 (fr)
CN (1) CN113286730A (fr)
BR (1) BR112021008372A2 (fr)
DE (1) DE102018127822A1 (fr)
WO (1) WO2020094362A1 (fr)

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DE102014012712A1 (de) * 2014-08-27 2016-03-03 Wabco Gmbh Ventileinheit zur Druckmodulation in einer Druckluft-Bremsanlage
DE102015014205A1 (de) * 2015-11-04 2017-05-04 Wabco Gmbh Hydraulische Bremsanlage
DE102015015472A1 (de) * 2015-11-28 2017-06-01 Wabco Gmbh Hydraulische Bremsanlage
DE102015016264A1 (de) * 2015-12-15 2017-06-22 Wabco Europe Bvba Ventileinheit zur Druckmodulation in einer Druckluft-Bremsanlage
EP3623238B1 (fr) * 2018-09-11 2021-03-31 KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH Soupape d'égalisation de pression
DE102018124179B3 (de) * 2018-10-01 2019-09-19 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH ABS-Drucksteuerventilanordnung

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DE102018127822A1 (de) 2020-05-07
US20210402971A1 (en) 2021-12-30
CN113286730A (zh) 2021-08-20
WO2020094362A1 (fr) 2020-05-14
JP2022506698A (ja) 2022-01-17
JP7203967B2 (ja) 2023-01-13
BR112021008372A2 (pt) 2021-08-03

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