FR2975142B1 - HYDRAULIC SYSTEM FOR UTILITY VEHICLE WITH LOAD DETECTION. - Google Patents

HYDRAULIC SYSTEM FOR UTILITY VEHICLE WITH LOAD DETECTION.

Info

Publication number
FR2975142B1
FR2975142B1 FR1154079A FR1154079A FR2975142B1 FR 2975142 B1 FR2975142 B1 FR 2975142B1 FR 1154079 A FR1154079 A FR 1154079A FR 1154079 A FR1154079 A FR 1154079A FR 2975142 B1 FR2975142 B1 FR 2975142B1
Authority
FR
France
Prior art keywords
hydraulic system
load detection
utility vehicle
vehicle
utility
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.)
Active
Application number
FR1154079A
Other languages
French (fr)
Other versions
FR2975142A1 (en
Inventor
Brech Laurent Le
Frederic Lagors
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.)
FLUID SYSTEM
Original Assignee
FLUID SYSTEM
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 FLUID SYSTEM filed Critical FLUID SYSTEM
Priority to FR1154079A priority Critical patent/FR2975142B1/en
Publication of FR2975142A1 publication Critical patent/FR2975142A1/en
Application granted granted Critical
Publication of FR2975142B1 publication Critical patent/FR2975142B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/162—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for giving priority to particular servomotors or users
    • 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
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
    • 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
    • F15B2211/25—Pressure control functions
    • F15B2211/253—Pressure margin control, e.g. pump pressure in relation to load pressure
    • 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
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
FR1154079A 2011-05-11 2011-05-11 HYDRAULIC SYSTEM FOR UTILITY VEHICLE WITH LOAD DETECTION. Active FR2975142B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1154079A FR2975142B1 (en) 2011-05-11 2011-05-11 HYDRAULIC SYSTEM FOR UTILITY VEHICLE WITH LOAD DETECTION.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1154079A FR2975142B1 (en) 2011-05-11 2011-05-11 HYDRAULIC SYSTEM FOR UTILITY VEHICLE WITH LOAD DETECTION.

Publications (2)

Publication Number Publication Date
FR2975142A1 FR2975142A1 (en) 2012-11-16
FR2975142B1 true FR2975142B1 (en) 2013-05-10

Family

ID=44860399

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1154079A Active FR2975142B1 (en) 2011-05-11 2011-05-11 HYDRAULIC SYSTEM FOR UTILITY VEHICLE WITH LOAD DETECTION.

Country Status (1)

Country Link
FR (1) FR2975142B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005093263A1 (en) * 2004-03-09 2005-10-06 Bucher Hydraulics Gmbh Hydraulic control system
GB0517698D0 (en) * 2005-08-30 2005-10-05 Agco Gmbh Hydraulic system for utility vehicles, in particular agricultural tractors
GB0522719D0 (en) * 2005-11-08 2005-12-14 Agco Gmbh Hydraulic system for utility vehicles, in particular agricultural tractors

Also Published As

Publication number Publication date
FR2975142A1 (en) 2012-11-16

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