EP2192309A3 - Method and regulating switch for regulating a printed material supply for a hydraulic actuator - Google Patents

Method and regulating switch for regulating a printed material supply for a hydraulic actuator Download PDF

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Publication number
EP2192309A3
EP2192309A3 EP09014791.9A EP09014791A EP2192309A3 EP 2192309 A3 EP2192309 A3 EP 2192309A3 EP 09014791 A EP09014791 A EP 09014791A EP 2192309 A3 EP2192309 A3 EP 2192309A3
Authority
EP
European Patent Office
Prior art keywords
speed
electric motor
variable displacement
displacement pump
regulating
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
EP09014791.9A
Other languages
German (de)
French (fr)
Other versions
EP2192309A2 (en
EP2192309B1 (en
Inventor
Albert Koeckemann
Gerold Liebler
Christian Lebert
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2192309A2 publication Critical patent/EP2192309A2/en
Publication of EP2192309A3 publication Critical patent/EP2192309A3/en
Application granted granted Critical
Publication of EP2192309B1 publication Critical patent/EP2192309B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/04—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by varying the output of a pump with variable capacity
    • 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
    • F15B2211/20515—Electric motor
    • 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
    • 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
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • 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
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6651—Control of the prime mover, e.g. control of the output torque or rotational speed
    • 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
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6656—Closed loop control, i.e. control using feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

Erfindungsgemäß wird ein Verfahren zur Regelung einer Druckmittelzufuhr für einen hydraulischen Aktor (11) einer zyklisch arbeitenden Maschine bereitgestellt. Der Aktor wird von einer Verstellpumpe (13) mit einer Druckmittelmenge versorgt, wobei die Verstellpumpe von einem drehzahlgesteuerten Elektromotor (14) angetrieben wird. Der Druck bzw. die Druckmittelmenge wird von einem Pumpenregler (41) durch Ansteuern der Volumeneinstellung der Verstellpumpe geregelt. Das Verfahren weist einen Schritt des Erstellens eines Drehzahl-Profils zum Verändern der Drehzahl des Elektromotors (14) während eines Zyklus auf. Zudem ist ein Schritt des Ansteuerns der Drehzahl des Elektromotors (14) und der Volumeneinstellung der Verstellpumpe (13), bei dem innerhalb eines Zyklus der Maschine der Elektromotor (14) mit einem Vorgabewert für die Drehzahl gemäß dem erstellten Drehzahl-Profil angesteuert wird, vorgesehen. Es ist zudem ein Schritt des Ermittelns der Drehzahlabweichung (nl1,nl2) des Elektromotors (14) vorgesehen. Die Drehzahlabweichung ergibt sich aus der Abweichung der Drehzahl (n) des Elektromotors (14) von einem Sollwert (ns) für die Drehzahl. Der Schritt des Ansteuerns der Drehzahl des Elektromotors und der Volumeneinstellung der Verstellpumpe erfolgt in Abhängigkeit der ermittelten Drehzahlabweichung.

Figure imgaf001
According to the invention, a method for controlling a pressure medium supply for a hydraulic actuator (11) of a cyclically operating machine is provided. The actuator is supplied by a variable displacement pump (13) with a pressure medium quantity, wherein the variable displacement pump is driven by a speed-controlled electric motor (14). The pressure or the amount of pressure medium is controlled by a pump regulator (41) by controlling the volume setting of the variable. The method includes a step of establishing a speed profile for varying the speed of the electric motor (14) during a cycle. In addition, a step of driving the rotational speed of the electric motor (14) and the volume adjustment of the variable displacement pump (13), in which within one cycle of the engine, the electric motor (14) is driven with a default value for the rotational speed according to the established speed profile, is provided , It is also a step of determining the speed deviation (nl1, nl2) of the electric motor (14) is provided. The speed deviation results from the deviation of the speed (n) of the electric motor (14) from a set value (ns) for the speed. The step of controlling the rotational speed of the electric motor and the volume setting of the variable displacement pump takes place as a function of the determined rotational speed deviation.
Figure imgaf001
EP09014791.9A 2008-11-29 2009-11-27 Method and control circuit for regulating a supply of pressure fluid for a hydraulic actuator Active EP2192309B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008059677 2008-11-29

Publications (3)

Publication Number Publication Date
EP2192309A2 EP2192309A2 (en) 2010-06-02
EP2192309A3 true EP2192309A3 (en) 2014-04-23
EP2192309B1 EP2192309B1 (en) 2017-04-05

Family

ID=41786471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09014791.9A Active EP2192309B1 (en) 2008-11-29 2009-11-27 Method and control circuit for regulating a supply of pressure fluid for a hydraulic actuator

Country Status (2)

Country Link
EP (1) EP2192309B1 (en)
DE (1) DE102009055978A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011119299A1 (en) 2011-11-24 2013-05-29 Robert Bosch Gmbh Method for operating a variable-speed variable-displacement pump
DE102012009136A1 (en) 2012-05-05 2013-11-07 Robert Bosch Gmbh Method for operating a fluid pump
CN102878152B (en) * 2012-10-12 2015-04-22 中联重科股份有限公司 Power control method and device of hydraulic system, and the hydraulic system
DE102018203623A1 (en) * 2018-03-09 2019-09-12 Zf Friedrichshafen Ag Drive for a working machine
DE102019220322A1 (en) 2019-12-20 2021-06-24 Robert Bosch Gesellschaft mit beschränkter Haftung Method for operating a variable-speed variable displacement pump
US11982070B2 (en) 2020-02-27 2024-05-14 Cnh Industrial America Llc System and method for heating the hydraulic fluid of an electric work vehicle
DE102020213262A1 (en) * 2020-10-21 2022-04-21 Robert Bosch Gesellschaft mit beschränkter Haftung Method for operating a hydraulic drive
DE102022203051B3 (en) 2022-03-29 2023-10-12 Robert Bosch Gesellschaft mit beschränkter Haftung Method for operating a variable speed pump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335403C1 (en) * 1993-10-18 1994-12-15 Karl Hehl Hydraulic device
EP1236558A1 (en) * 2001-03-03 2002-09-04 Mannesmann Rexroth AG Method for fluid supply regulation of an hydraulic actuator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335403C1 (en) * 1993-10-18 1994-12-15 Karl Hehl Hydraulic device
EP1236558A1 (en) * 2001-03-03 2002-09-04 Mannesmann Rexroth AG Method for fluid supply regulation of an hydraulic actuator

Also Published As

Publication number Publication date
DE102009055978A1 (en) 2010-06-02
EP2192309A2 (en) 2010-06-02
EP2192309B1 (en) 2017-04-05

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