IT1280908B1 - Impianto di idroguida per un veicolo - Google Patents
Impianto di idroguida per un veicoloInfo
- Publication number
- IT1280908B1 IT1280908B1 IT95TO000683A ITTO950683A IT1280908B1 IT 1280908 B1 IT1280908 B1 IT 1280908B1 IT 95TO000683 A IT95TO000683 A IT 95TO000683A IT TO950683 A ITTO950683 A IT TO950683A IT 1280908 B1 IT1280908 B1 IT 1280908B1
- Authority
- IT
- Italy
- Prior art keywords
- vehicle
- power steering
- steering system
- power
- steering
- Prior art date
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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/065—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
-
- 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
- F15B2211/20507—Type of prime mover
- F15B2211/20523—Internal combustion engine
-
- 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
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- 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
- F15B2211/255—Flow control functions
-
- 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
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control 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
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
-
- 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
- F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/321—Directional control characterised by the type of actuation mechanically
- F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
-
- 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
- F15B2211/321—Directional control characterised by the type of actuation mechanically
- F15B2211/325—Directional control characterised by the type of actuation mechanically actuated by an output member of the circuit
- F15B2211/326—Directional control characterised by the type of actuation mechanically actuated by an output member of the circuit with follow-up action
-
- 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
- F15B2211/35—Directional control combined with flow control
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6054—Load sensing circuits having valve means between output member and the load sensing circuit using shuttle 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
- F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
- F15B2211/7054—Having equal piston areas
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Power Steering Mechanism (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT95TO000683A IT1280908B1 (it) | 1995-08-11 | 1995-08-11 | Impianto di idroguida per un veicolo |
EP96112815A EP0787641A1 (en) | 1995-08-11 | 1996-08-08 | Hydraulic power steering system for a vehicle |
US08/695,289 US5947228A (en) | 1995-08-11 | 1996-08-09 | Hydraulic power steering system for a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT95TO000683A IT1280908B1 (it) | 1995-08-11 | 1995-08-11 | Impianto di idroguida per un veicolo |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO950683A0 ITTO950683A0 (it) | 1995-08-11 |
ITTO950683A1 ITTO950683A1 (it) | 1997-02-11 |
IT1280908B1 true IT1280908B1 (it) | 1998-02-11 |
Family
ID=11413790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT95TO000683A IT1280908B1 (it) | 1995-08-11 | 1995-08-11 | Impianto di idroguida per un veicolo |
Country Status (3)
Country | Link |
---|---|
US (1) | US5947228A (it) |
EP (1) | EP0787641A1 (it) |
IT (1) | IT1280908B1 (it) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3695909B2 (ja) * | 1997-09-30 | 2005-09-14 | 株式会社小松製作所 | 油圧式ステアリング装置及びその油圧バルブ |
DE19818111A1 (de) * | 1998-04-23 | 1999-10-28 | Mannesmann Rexroth Ag | Hydraulisches Lenksystem für ein Fahrzeug, insbesondere für eine mobile Arbeitsmaschine |
JP2001018816A (ja) * | 1999-07-08 | 2001-01-23 | Showa Corp | パワーステアリング装置 |
US6568499B2 (en) * | 2000-11-21 | 2003-05-27 | Unisia Jecs Corporation | Power steering system for vehicles |
US6880668B2 (en) * | 2001-05-17 | 2005-04-19 | Hitachi, Ltd. | Power steering device |
US20060113136A1 (en) * | 2004-11-30 | 2006-06-01 | Coot2 Inc. | Off road vehicle apparatus and method |
DE102005056167A1 (de) * | 2004-12-27 | 2006-07-13 | Continental Teves Ag & Co. Ohg | Fahrzeuglenkung und Verfahren zur Regelung einer Fahrzeuglenkung |
US8100221B2 (en) * | 2006-12-07 | 2012-01-24 | The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency | Engine-off power steering system |
JP5052147B2 (ja) * | 2007-01-25 | 2012-10-17 | 日立建機株式会社 | 建設車両用ステアリング装置 |
FR2918029B1 (fr) * | 2007-06-27 | 2009-11-20 | Renault Sas | Circuit hydraulique d'actionnement de direction assistee et vehicule automobile muni de celui-ci. |
CN102351004B (zh) * | 2011-07-26 | 2013-04-24 | 浙江吉利汽车研究院有限公司 | 一种汽车转向助力*** |
RU2488508C1 (ru) * | 2012-04-24 | 2013-07-27 | Юрий Феликсович Черняков | Способ дистанционного гидравлического управления и дистанционное рулевое управление самоходной машины |
DE102016002555A1 (de) * | 2016-03-04 | 2017-09-07 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Vorrichtung und Verfahren zum Aufrechterhalten eines erzeugten hydraulischen Druckes |
CA3177955A1 (en) * | 2020-05-06 | 2021-11-11 | Xuzhou Heavy Machinery Co., Ltd. | Hydraulic steering system and mobile crane |
US20220355854A1 (en) * | 2021-05-04 | 2022-11-10 | Ronald Gene Timmons | Self-centering double ended hydraulic steering cylinder that uses no electronics |
WO2023203368A1 (en) * | 2022-04-20 | 2023-10-26 | Joseph Malvin Raj M | System and method for honking horn in an automobile |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2850526A1 (de) * | 1978-11-22 | 1980-05-29 | Danfoss As | Steuereinrichtung fuer einen hydraulisch betriebenen verbraucher |
JPS57205271A (en) * | 1981-06-12 | 1982-12-16 | Nissan Motor Co Ltd | Flow rate controlling valve of power steering apparatus |
YU180488A (en) * | 1987-11-26 | 1991-02-28 | Zahnradfabrik Friedrichshafen | Steering hydrostatic servo device, especially for motor vehicles |
US5253730A (en) * | 1988-06-08 | 1993-10-19 | Honda Giken Kogyo Kabushiki Kaisha | Power steering apparatus |
US4914913A (en) * | 1989-05-03 | 1990-04-10 | Caterpillar Inc. | Load responsive flow amplified control system for power steering |
EP0562426B1 (en) * | 1992-03-27 | 1999-05-19 | Toyoda Koki Kabushiki Kaisha | Power steering apparatus |
US5505276A (en) * | 1994-10-20 | 1996-04-09 | Trw Inc. | Poer steering system with minimum pressure maintained within the power steering motor |
JP3525269B2 (ja) * | 1995-03-09 | 2004-05-10 | 光洋精工株式会社 | パワーステアリング装置 |
-
1995
- 1995-08-11 IT IT95TO000683A patent/IT1280908B1/it active IP Right Grant
-
1996
- 1996-08-08 EP EP96112815A patent/EP0787641A1/en not_active Withdrawn
- 1996-08-09 US US08/695,289 patent/US5947228A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ITTO950683A1 (it) | 1997-02-11 |
ITTO950683A0 (it) | 1995-08-11 |
EP0787641A1 (en) | 1997-08-06 |
US5947228A (en) | 1999-09-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |