EP3180219A1 - Dispositif d'alimentation en pression comportant un appareil de traitement de l'air - Google Patents

Dispositif d'alimentation en pression comportant un appareil de traitement de l'air

Info

Publication number
EP3180219A1
EP3180219A1 EP15767093.6A EP15767093A EP3180219A1 EP 3180219 A1 EP3180219 A1 EP 3180219A1 EP 15767093 A EP15767093 A EP 15767093A EP 3180219 A1 EP3180219 A1 EP 3180219A1
Authority
EP
European Patent Office
Prior art keywords
pressure
compressed air
air
supply device
circuit
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Withdrawn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
EP15767093.6A
Other languages
German (de)
English (en)
Inventor
Karsten Schnittger
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 EP3180219A1 publication Critical patent/EP3180219A1/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Withdrawn legal-status Critical Current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
    • 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
    • B60T17/002—Air treatment devices
    • 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
    • B60T15/48—Other control devices or valves characterised by definite functions for filling reservoirs
    • 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
    • B60T17/06—Applications or arrangements of reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/048—Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14—Energy-recuperation means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge

Definitions

  • the invention relates to a pressure supply device for a vehicle system with an air conditioning system, comprising an air dryer and air filter unit for drying and cleaning the compressed air conveyed by a compressor, wherein a first pressure relief valve to form a high pressure circuit downstream of the air dryer and air filter unit is arranged, the high pressure circuit a Having a housing of the air treatment plant arranged high pressure vessel for compressed air storage.
  • the invention extends in particular to commercial vehicle technology.
  • compressed air consumer circuits are, for example, brake circuits of a commercial vehicle brake system, a secondary consumer circuit, a trailer supply circuit, a parking brake system circuit, a pneumatic suspension circuit, etc. Therefore, the compressed air supply or the air treatment is a key component in the commercial vehicle brake system. In particular for the commercial vehicle brake system, the air treatment system controls the position of
  • Energy for the braking system in the form of compressed air in the form of compressed air.
  • it is an intermediate piece or link between a provided for compressed air procurement or compressed air supply compressor that promotes oil and water-containing air, and the compressed air consumer circuits in the commercial vehicle.
  • the air treatment plant is connected upstream of a compressed air reservoir via a main line.
  • the main line via the air treatment plant leads to one or more compressed air consumers, which are connected to corresponding compressed air connections of the air treatment plant.
  • the air treatment system further comprises a pressure air accumulator downstream and arranged in the main line pressure relief valve.
  • a pressure sensor is provided in the air treatment plant, which is coupled to the compressed air reservoir on the one hand and to a control device of the air treatment system of no further interest, on the other hand.
  • the air treatment system comprises a pressure-limiting valve downstream air dryer and air filter unit, which is used for compressed air drying and compressed air filtration of the compressed air supplied by the compressor and / or the compressed air storage.
  • Figure 9 shows another embodiment of the system.
  • the compressed air reservoir is arranged downstream of the air dryer and air filter unit.
  • the pressure limiting valve is provided immediately downstream of the compressed air reservoir in the main line, before branches to the compressed air consumers depart from the main line.
  • the safety valve in the vent line the compressed air reservoir immediately upstream and downstream of the air dryer and air filter unit, wherein the vent line with the safety valve upstream in the direction of the air dryer and air filter unit check valve is connected upstream.
  • the compressed air reservoir in this embodiment is an internal volume in the air treatment unit or air treatment plant.
  • the embodiment shown in FIG. 10 differs from that in FIG. 9 The fact that the compressed air tank is outsourced from the air treatment plant and thus forms an external compressed air reservoir.
  • WO2013 / 079987 discloses a compressed air generating system for a motor vehicle, comprising at least one compressor and a first compressed air tank.
  • the compressor is capable of compressing the air to a higher pressure than a nominal pressure in the first compressed air reservoir.
  • the compressed air generating system further comprises at least one high pressure compressed air tank, and a pneumatic motor fluidly connected to the high pressure compressed air tank. The pneumatic motor generates torque by expanding the compressed air in the high-pressure compressed air tank.
  • an overflow valve for high-pressure circuit safety of the high-pressure circuit is arranged upstream of the high-pressure container, and downstream of the high-pressure container, a pneumatic motor for converting a pneumatic energy and feedback into the vehicle system is arranged.
  • the high-pressure vessel and the pneumatic motor are arranged outside the housing of the air treatment plant, but are fluid-technically arranged via lei connected to the air treatment plant.
  • a second pressure limiting valve is arranged downstream of the at least one first pressure relief valve, wherein downstream of the second pressure relief valve, a first pressure circuit is present at a first system pressure between the first and the second pressure relief valve, a second pressure circuit is present at a second system pressure and the high pressure circuit upstream of the first pressure relief valve has a third system pressure.
  • the first system pressure in the first pressure circuit is less than 12.5 bar.
  • the second system pressure in the second pressure circuit is 12.5 bar and the third system pressure of the high pressure circuit is greater than 12.5 bar.
  • the invention includes the technical teaching that in the high-pressure circuit upstream of the overflow valve, a 2/2-way valve connected to the at least one pressure sensor is arranged to interrupt a compressed air flow.
  • a 2/2-way valve connected to the at least one pressure sensor is arranged to interrupt a compressed air flow.
  • the brake circuits for a front and rear axle of the vehicle are first supplied with compressed air.
  • Each pressure sensor measures the pressure in the brake circuits and is additionally connected to the 2/2-way valve.
  • the compressor is controlled such that air is conveyed, in particular during coasting phases of the vehicle, whereby no fuel is needed to drive the compressor.
  • a 2/2-way valve connected to the at least one solenoid valve for controlling the interruption of a compressed air flow is arranged downstream of the high-pressure container. This allows the energy to be returned to the vehicle system only when the compressor is not delivering compressed air.
  • the electronic control unit is connected to at least two solenoid valves, wherein a solenoid valve is provided exclusively for controlling the 2/2-way valve.
  • At least one secondary consumer can be fed with compressed air via the first pressure circuit.
  • a gear but also a trailer with parking brake on the first pressure circuit with compressed air can be fed.
  • a braking device can be fed with compressed air via the second pressure circuit.
  • the braking device comprises a front axle and a rear axle.
  • the compressed air supply of air suspension via the second pressure circuit is also conceivable.
  • the overflow valve can preferably be integrated in a component of the braking device with control electronics.
  • This component may be, for example, an electronic air suspension but also an electronic brake system.
  • FIG. 1 is a schematic representation of a partially shown pressure supply device with focus on the air treatment plant according to a first embodiment
  • FIG. 2 is a schematic representation of a partially shown pressure supply device with focus on the air treatment plant according to a second embodiment
  • Figure 3 is a schematic representation of a partially shown pressure supply device with focus on the air treatment plant according to a third embodiment
  • Figure 4 is a schematic representation of a partially illustrated pressure supply device with focus on the air treatment plant according to a fourth embodiment.
  • the pressure supply device for a commercial vehicle has a compressor 3, which is driven by an internal combustion engine (not shown here) and which is connected fluidically to an air treatment plant 1.
  • the Air treatment plant 1 comprises a housing 9 by a high pressure circuit 8 and a first and a second pressure circuit 14, 15 are arranged, wherein the high pressure circuit 8 is separated from the second compressed air circuit 15 by a first pressure relief valve 7 and the two compressed air circuits 14, 15 by a second Pressure limiting valve 13 are separated from each other.
  • the first pressure circuit 14 has a system pressure less than 12.5 bar
  • the second pressure circuit 15 has a system pressure of 12.5 bar
  • the high pressure circuit 8 has a system pressure greater than 12.5 bar.
  • an overflow valve 1 la-1 lg is arranged for pressure circuit safety. Furthermore, the height of the opening pressures determines the filling order of the various compressed air circuits. Therefore, the compressed air circuit is filled with the lowest opening pressure first.
  • overflow valve 1 lg secures the pressure circuit for a - not shown here - gear
  • overflow valve 1 lf secures the pressure circuit for a secondary consumer 17
  • overflow valve 1 le secures the pressure circuit for - not shown here - trailer and parking brake.
  • the overflow valve 11a secures the high-pressure circuit 8, a high-pressure container 10 being arranged downstream of the overflow valve 11a, and downstream of the high-pressure container 10 a pneumatic motor 12 for converting a pneumatic energy and regenerating into the vehicle system.
  • the air treatment plant 1 comprises an air dryer and air filter unit
  • a pressure regulator 19 is arranged in a line upstream of the air dryer and air filter unit 2, which allows venting via a vent line 20a. Via a control line 21, the control for the compressor 3, whereby the compressor 3 is switched off pneumatically as needed.
  • a 2/2-way valve 16 connected to the pressure sensors 4b, 4c for interrupting a compressed air flow is arranged in the high-pressure circuit 8 upstream of the overflow valve 1a.
  • the high-pressure circuit 8 and thus the high-pressure container 10 is first filled after a filling of the service brake circuits secured by the overflow valves 11c and 1 ld is completed.
  • the remaining structure of this embodiment is based on FIG.
  • a 2/2-way valve 16 connected to the solenoid valve 5a for control is arranged downstream of the high-pressure container 10 for interrupting the compressed-air flow.
  • Boost phases of the vehicle are preferably used to drive the compressor 3.
  • the control line 21 is vented to the compressor 3 and the 2/2-Wegeventi 16 closed to prevent a recovery of energy during the overrun phase.
  • the return of energy into the vehicle system is thus preferably carried out when there are no overrun phases and the compressor 3 does not supply compressed air.
  • the 2/2-way valve 16 is disposed downstream of the high pressure vessel 10, but is within the housing 9 of the air treatment plant 1.
  • the electronic control unit 6 is connected to three solenoid valves 5a, 5b, 5c, wherein a solenoid valve 5c is provided exclusively for controlling the 2/2-way valve 16.
  • a solenoid valve 5c is provided exclusively for controlling the 2/2-way valve 16.
  • the solenoid valve 5c has a vent line 20c.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

L'invention concerne un dispositif d'alimentation en pression pour un système de véhicule, comportant un appareil de traitement de l'air (1) qui comprend une unité de séchage et de filtrage de l'air (2) pour sécher et épurer l'air comprimé transporté par un compresseur (3), une première soupape de limitation de pression (7a) destinée à former un circuit haute pression (8) étant disposée en aval de l'unité de séchage et de filtrage de l'air (2), le circuit haute pression (8) présentant un réservoir haute pression (10) destiné à stocker de l'air comprimé, disposé en dehors d'un boîtier de l'appareil de traitement de l'air (1). Selon l'invention, une soupape de décharge (11a) destinée à sécuriser le circuit haute pression (10) est disposée en amont du réservoir haute pression (10) et un moteur pneumatique (12) destiné à convertir une énergie pneumatique et à la réinjecter dans le système de véhicule est disposé en aval du réservoir haute pression (10).
EP15767093.6A 2014-08-13 2015-08-11 Dispositif d'alimentation en pression comportant un appareil de traitement de l'air Withdrawn EP3180219A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014111523.6A DE102014111523A1 (de) 2014-08-13 2014-08-13 Druckversorgungseinrichtung mit Luftaufbereitungsanlage
PCT/EP2015/068464 WO2016023902A1 (fr) 2014-08-13 2015-08-11 Dispositif d'alimentation en pression comportant un appareil de traitement de l'air

Publications (1)

Publication Number Publication Date
EP3180219A1 true EP3180219A1 (fr) 2017-06-21

Family

ID=54151241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15767093.6A Withdrawn EP3180219A1 (fr) 2014-08-13 2015-08-11 Dispositif d'alimentation en pression comportant un appareil de traitement de l'air

Country Status (3)

Country Link
EP (1) EP3180219A1 (fr)
DE (1) DE102014111523A1 (fr)
WO (1) WO2016023902A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017124383A1 (de) 2017-10-19 2019-04-25 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Luftaufbereitungseinrichtung für Kraftfahrzeuge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005057003B4 (de) * 2005-11-30 2007-09-13 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Druckluftversorgungsanlage und Verfahren zum Betreiben einer Druckluftversorgungsanlage
DE102006034762B3 (de) * 2006-07-27 2007-10-04 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Druckluftaufbereitungseinrichtung zum Versorgen einer Kraftfahrzeugbremsanlage mit Druckluft
DE102007032963A1 (de) 2007-07-16 2009-01-29 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH System mit einer Luftaufbereitungsanlage
DE102009023308B3 (de) * 2009-05-29 2011-02-03 Festo Ag & Co. Kg Pneumatische Vorrichtung
DE102009038600A1 (de) * 2009-08-26 2011-03-03 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Verfahren zum Regenerieren einer Druckluftversorgungseinrichtung, Steuereinrichtung und Druckluftversorgungseinrichtung
WO2013079987A1 (fr) 2011-11-28 2013-06-06 Renault Trucks Procédé permettant de commander un système de génération d'air comprimé d'un véhicule automobile, système de génération d'air comprimé et véhicule automobile comprenant ce système

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2016023902A1 *

Also Published As

Publication number Publication date
DE102014111523A1 (de) 2016-02-18
WO2016023902A1 (fr) 2016-02-18

Similar Documents

Publication Publication Date Title
DE102005057004B3 (de) Druckluftaufbereitungseinrichtung und Verfahren zum Betreiben einer Druckluftaufbereitungseinrichtung
EP2140926B1 (fr) Dessicateur d'air pour compresseurs suralimentés
DE102004052375B4 (de) Federspeicherbremszylinder und Verfahren zu seinem Betrieb
EP2836406B1 (fr) Système d'air comprimé pour l'approvisionnement d'air d'un camion
EP2867079B1 (fr) Dispositif de conditionnement d'air comprimé pour véhicule et procédé pour faire fonctionner un dispositif de conditionnement d'air comprimé
DE102008062072A1 (de) Reifendruckregelsystem und Verfahren zur Reifendruckregelung
WO2003016114A2 (fr) Procede pour degazer un systeme de freinage hydraulique de vehicule
EP3924233A1 (fr) Système de freinage à air comprimé d'un véhicule automobile
EP2050596A1 (fr) Dispositif électronique d'alimenation en air
EP1479584A1 (fr) Dispositif de valve de protection pour plusieurs circuits avec contrôle de limitation de pression par électrovalve pour des actionneurs commandés par air comprimé dans un véhicule
EP1651493A1 (fr) Procede et dispositif pour detecter une defaillance d'un circuit consommateur d'air comprime dans un systeme electronique a air comprime pour des vehicules
DE102011011395B3 (de) Mehrkreisschutzventil für eine Druckluftversorgungseinrichtung eines Fahrzeugs und Verfahren zum Betreiben eines Mehrkreisschutzventils
WO2016023902A1 (fr) Dispositif d'alimentation en pression comportant un appareil de traitement de l'air
EP3590779B1 (fr) Dispositif de traitement de l'air comprimé et son procédé de fonctionnement
DE102008045713B4 (de) Drucklufteinrichtung eines Fahrzeugs mit geschlossenem Druckluftkreislauf
EP1640232B1 (fr) Dispositif de distribution d'air comprimé d'un système à air comprimé d'un véhicule commerciale
EP3833871B1 (fr) Procédé de surveillance du fonctionnement d'un compresseur
DE102012009425B3 (de) Pneumatische Bremsvorrichtung mit einem Stellglied zur Druckregelung und Volumenstromregelung
EP2377738B1 (fr) Dispositif agissant avec une soupape de freinage de guidage pour l'équilibrage automatique de la pression de la conduite d'aération principale d'un véhicule sur rails
EP3099548B1 (fr) Système d'alimentation en air comprimé destiné à des véhicules utilitaires
DE102014113062B4 (de) Reifendruckregulierungsvorrichtung mit Boostereinrichtung, insbesondere für einen Nutzfahrzeuganhänger
DE102010024059A1 (de) Druckluftanlage für Nutzfahrzeuge und Verfahren zum Bereitstellen und Verwalten von Druckluft mittels einer Druckluftanlage
DE102007063543A1 (de) Hydraulisches System zur Wankstabilisierung eines Kraftfahrzeugs
DE102010036135A1 (de) Luftfördersystem und Verfahren zum Betrieb eines Luftfördersystems
EP1800984A1 (fr) Procédé de réalimentation de circuits de freinage après une consommation importante d'air comprimé

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20170313

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200420

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20200901