EP0309729A3 - Dual-pressure supply system in a motor vehicle - Google Patents

Dual-pressure supply system in a motor vehicle Download PDF

Info

Publication number
EP0309729A3
EP0309729A3 EP88113675A EP88113675A EP0309729A3 EP 0309729 A3 EP0309729 A3 EP 0309729A3 EP 88113675 A EP88113675 A EP 88113675A EP 88113675 A EP88113675 A EP 88113675A EP 0309729 A3 EP0309729 A3 EP 0309729A3
Authority
EP
European Patent Office
Prior art keywords
dual
motor vehicle
supply system
pressure supply
pressure
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.)
Granted
Application number
EP88113675A
Other languages
German (de)
Other versions
EP0309729A2 (en
EP0309729B1 (en
Inventor
Horst Holzhauer
Wolfgang Schneider
Gunther Weikert
Rudi Kneib
Josef Schumacher
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of EP0309729A2 publication Critical patent/EP0309729A2/en
Publication of EP0309729A3 publication Critical patent/EP0309729A3/en
Application granted granted Critical
Publication of EP0309729B1 publication Critical patent/EP0309729B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/555—Pressure control for assuring a minimum pressure, e.g. by using a back pressure valve
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/89—Control specific for achieving vacuum or "negative pressure"

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
EP88113675A 1987-10-01 1988-08-23 Dual-pressure supply system in a motor vehicle Expired - Lifetime EP0309729B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3733212A DE3733212C1 (en) 1987-10-01 1987-10-01 Bi-pressure supply system in a motor vehicle
DE3733212 1987-10-01

Publications (3)

Publication Number Publication Date
EP0309729A2 EP0309729A2 (en) 1989-04-05
EP0309729A3 true EP0309729A3 (en) 1989-07-26
EP0309729B1 EP0309729B1 (en) 1991-12-04

Family

ID=6337404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88113675A Expired - Lifetime EP0309729B1 (en) 1987-10-01 1988-08-23 Dual-pressure supply system in a motor vehicle

Country Status (5)

Country Link
US (1) US4939899A (en)
EP (1) EP0309729B1 (en)
JP (1) JPH01112001A (en)
DE (1) DE3733212C1 (en)
ES (1) ES2028962T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917964A1 (en) * 1989-06-02 1990-12-06 Daimler Benz Ag METHOD FOR REMOVING CONDENSATE FROM A COMPRESSED AIR SYSTEM AND DEVICE FOR CARRYING IT OUT
DE3926428A1 (en) * 1989-08-10 1991-02-14 Audi Ag Displacement pump for pneumatic equipment of vehicle - has low pressure line connected to vacuum operated equipment, and equipment using high pressure line
DE4117739A1 (en) * 1991-05-30 1992-12-03 Daimler Benz Ag AUTOMATIC SHIFTING DEVICE OF A MULTI-SPEED GEAR GEAR TRANSMISSION
DE4210049C1 (en) * 1992-03-27 1993-04-01 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Pressure supply installation for at least two adjusters in motor vehicle - provides two pressure levels via pressure limit valve placed in switching positions in dependence on pressure level arriving from pressure generator
DE4309839C1 (en) * 1993-03-26 1994-06-23 Daimler Benz Ag Vacuum adjustment in automotive air-conditioning system
US5701051A (en) * 1996-02-15 1997-12-23 Lin; Blake Miniature lamp
DE10059531A1 (en) * 2000-11-30 2002-06-06 Still Gmbh Hydraulic system for fork-lift truck comprises closed circuit connected to pump, user devices fitted with control valves being connected between high pressure and low pressure sides of circuit
US6490960B1 (en) * 2001-07-11 2002-12-10 Xerox Corporation Muscle-emulating PC board actuator
DE102006040203A1 (en) * 2006-08-28 2008-03-06 GM Global Technology Operations, Inc., Detroit Actuator for an active hood
CN103105473A (en) * 2012-11-06 2013-05-15 苏州聚阳环保科技有限公司 Water quality detector sampling system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3096112A (en) * 1961-11-14 1963-07-02 Gen Motors Corp Coincidental door locking system
DE2232956A1 (en) * 1972-07-05 1974-01-17 Daimler Benz Ag PNEUMATIC SYSTEM FOR FEEDING DIAPHRAGM-CONTROLLED WORKING ELEMENTS
FR2408056A1 (en) * 1977-11-05 1979-06-01 Bosch Gmbh Robert CENTRAL CONTROL FOR DIFFERENT HYDRAULIC COMPONENTS OF A VEHICLE
DE3243411A1 (en) * 1982-11-24 1984-05-24 Daimler-Benz Ag, 7000 Stuttgart Pneumatic central-locking system for the doors, flaps or the like of a motor vehicle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243036A (en) * 1939-08-19 1941-05-20 Trico Products Corp Accessory system for motor vehicles
US3163985A (en) * 1962-07-31 1965-01-05 John V Bouyoucos Hydraulic energy storage system
DE2742666A1 (en) * 1977-09-22 1979-04-05 Daimler Benz Ag PNEUMATIC ACTUATION ARRANGEMENT, IN PARTICULAR FOR CENTRAL LOCKING SYSTEMS, AND SWITCHING VALVE FOR IT
DE2715136A1 (en) * 1977-04-05 1978-10-19 Daimler Benz Ag PNEUMATIC SYSTEM FOR A CENTRAL LOCKING FOR VEHICLES ACTUATED BY A FLOATING MEDIUM
DE2805004A1 (en) * 1978-02-06 1979-08-09 Vdo Schindling DEVICE FOR UNLOCKING AND LOCKING DOORS, IN PARTICULAR MOTOR VEHICLE DOORS
DE2826354A1 (en) * 1978-06-16 1979-12-20 Daimler Benz Ag PNEUMATIC CENTRAL LOCKING OF DOORS AND FLAPS OF MOTOR VEHICLES
US4412416A (en) * 1980-10-20 1983-11-01 General Motors Corporation Altitude compensated vacuum supply system and control
DE3109200A1 (en) * 1981-03-11 1982-09-23 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Apparatus for supplying various users of low pressure in a motor vehicle
DE3644736C2 (en) * 1985-12-30 1996-01-11 Rexroth Mannesmann Gmbh Control arrangement for at least two hydraulic consumers fed by at least one pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3096112A (en) * 1961-11-14 1963-07-02 Gen Motors Corp Coincidental door locking system
DE2232956A1 (en) * 1972-07-05 1974-01-17 Daimler Benz Ag PNEUMATIC SYSTEM FOR FEEDING DIAPHRAGM-CONTROLLED WORKING ELEMENTS
FR2408056A1 (en) * 1977-11-05 1979-06-01 Bosch Gmbh Robert CENTRAL CONTROL FOR DIFFERENT HYDRAULIC COMPONENTS OF A VEHICLE
DE3243411A1 (en) * 1982-11-24 1984-05-24 Daimler-Benz Ag, 7000 Stuttgart Pneumatic central-locking system for the doors, flaps or the like of a motor vehicle

Also Published As

Publication number Publication date
JPH01112001A (en) 1989-04-28
EP0309729A2 (en) 1989-04-05
ES2028962T3 (en) 1992-07-16
EP0309729B1 (en) 1991-12-04
DE3733212C1 (en) 1989-03-02
US4939899A (en) 1990-07-10

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