DE102019115725A1 - Pump drive assembly - Google Patents
Pump drive assembly Download PDFInfo
- Publication number
- DE102019115725A1 DE102019115725A1 DE102019115725.0A DE102019115725A DE102019115725A1 DE 102019115725 A1 DE102019115725 A1 DE 102019115725A1 DE 102019115725 A DE102019115725 A DE 102019115725A DE 102019115725 A1 DE102019115725 A1 DE 102019115725A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- electric motor
- valve
- drive arrangement
- shut
- 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- Withdrawn
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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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/007—Overload
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of 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
- F15B2211/20—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
- F15B2211/20538—Type of pump constant 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
-
- 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
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41563—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a 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
- F15B2211/50—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
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid 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
- F15B2211/50—Pressure control
- F15B2211/51—Pressure control characterised by the positions of the valve element
- F15B2211/511—Pressure control characterised by the positions of the valve element the positions being discrete
-
- 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
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a 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
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/85—Control during special operating conditions
- F15B2211/851—Control during special operating conditions during starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Die Erfindung betrifft eine Pumpenantriebsanordnung (2) zum Antreiben mindestens einer elektromotorisch angetriebenen Pumpe (3), die an einem Pumpenausgang (8) einen Volumenstrom bereitstellt.Um das Betreiben und/oder die Herstellung der Pumpenantriebsanordnung (2) zu vereinfachen, ist ein in einer Ruhestellung geöffnetes Sperrventil (10) parallel zu der Pumpe (3) angeordnet, um ein lastfreies Anlaufen der elektromotorisch angetriebenen Pumpe (3) zu ermöglichen.The invention relates to a pump drive arrangement (2) for driving at least one electric motor-driven pump (3) which provides a volume flow at a pump outlet (8). In order to simplify the operation and / or manufacture of the pump drive arrangement (2), an in Normally open shut-off valve (10) arranged parallel to the pump (3) in order to enable the electric motor-driven pump (3) to start up without load.
Description
Die Erfindung betrifft eine Pumpenantriebsanordnung zum Antreiben mindestens einer elektromotorisch angetriebenen Pumpe, die an einem Pumpenausgang einen Volumenstrom bereitstellt. Die Erfindung betrifft des Weiteren ein Verfahren zum Betreiben einer derartigen Pumpenantriebsanordnung.The invention relates to a pump drive arrangement for driving at least one electric motor-driven pump which provides a volume flow at a pump outlet. The invention also relates to a method for operating such a pump drive arrangement.
Aus der deutschen Offenlegungsschrift
Aufgabe der Erfindung ist es, das Betreiben und/oder die Herstellung einer Pumpenantriebsanordnung zum Antreiben mindestens einer elektromotorisch angetriebenen Pumpe, die an einem Pumpenausgang einen Volumenstrom bereitstellt, zu vereinfachen.The object of the invention is to simplify the operation and / or production of a pump drive arrangement for driving at least one electric motor-driven pump which provides a volume flow at a pump outlet.
Die Aufgabe ist bei einer Pumpenantriebsanordnung zum Antreiben mindestens einer elektromotorisch angetriebenen Pumpe, die an einem Pumpenausgang einen Volumenstrom bereitstellt, dadurch gelöst, dass ein in einer Ruhestellung geöffnetes Sperrventil parallel zu der Pumpe angeordnet ist, um ein lastfreies Anlaufen der elektromotorisch angetriebenen Pumpe zu ermöglichen. Bei der Fluidpumpe handelt es sich zum Beispiel um eine Förderpumpe für ein Hydraulikmedium. Überlicherweise werden Lagesensoren in elektrisch angetriebenen Pumpen eingesetzt, die eine der aktuellen Lage entsprechende günstige Ansteuerung des Elektromotors ermöglichen, insbesondere im Hinblick auf eine Kommutierung und eine Ansteuerung der Motorwicklungen des Elektromotors. Die parallele Anordnung des Sperrventils, das in der Ruhestellung der elektromotorisch angetriebenen Pumpe geöffnet ist, ermöglicht der Pumpe ein lastfreies Anlaufen. Durch den sich beim Anlaufen der Pumpe aufbauenden Volumenstrom entsteht vor dem Sperrventil ein Rückstaudruck, der das Sperrventil schließt und einen normalen Betrieb der Pumpe nach dem Anlaufen ermöglicht.The object is achieved in a pump drive arrangement for driving at least one electric motor-driven pump, which provides a volume flow at a pump outlet, in that a shut-off valve, which is open in a rest position, is arranged parallel to the pump in order to enable the electric motor-driven pump to start without load. The fluid pump is, for example, a feed pump for a hydraulic medium. Position sensors are usually used in electrically driven pumps, which enable a favorable control of the electric motor corresponding to the current position, in particular with regard to commutation and control of the motor windings of the electric motor. The parallel arrangement of the shut-off valve, which is open when the electric motor-driven pump is in the rest position, enables the pump to start without load. The volume flow that builds up when the pump starts up creates a back pressure upstream of the shut-off valve, which closes the shut-off valve and enables normal operation of the pump after start-up.
Ein bevorzugtes Ausführungsbeispiel der Pumpenantriebsanordnung ist dadurch gekennzeichnet, dass zwischen dem Pumpenausgang der elektromotorisch angetriebenen Pumpe und dem Sperrventil ein fluidischer Widerstand angeordnet ist, der beim Anlaufen der elektromotorisch angetriebenen Pumpe einen Rückstaudruck erzeugt, mit dem das Sperrventil angesteuert wird. Dadurch wird der Steuerungsaufwand zur Realisierung eines ordnungsgemäßen Betriebs der Pumpenantriebsanordnung mit der elektromotorisch angetriebenen Pumpe erheblich reduziert.A preferred embodiment of the pump drive arrangement is characterized in that a fluidic resistance is arranged between the pump outlet of the electric motor-driven pump and the shut-off valve, which generates a back pressure when the electric motor-driven pump starts up, with which the shut-off valve is controlled. As a result, the control effort for realizing proper operation of the pump drive arrangement with the pump driven by an electric motor is considerably reduced.
Ein weiteres bevorzugtes Ausführungsbeispiel der Pumpenantriebsanordnung ist dadurch gekennzeichnet, dass einem Verbraucher ein Rückschlagventil vorgeschaltet ist, das in Richtung Pumpenausgang und in Richtung Sperrventil sperrt. Dadurch wird der Betrieb der Pumpenantriebsanordnung in einer Fluidanordnung, die einen Fluiddruckspeicher umfasst, ermöglicht. Das Rückschlagventil verhindert auf einfache Art und Weise, dass sich der Fluiddruckspeicher über das in der Ruhestellung der elektromotorisch angetriebenen Pumpe geöffnete Sperrventil in unerwünschter Art und Weise entlädt.Another preferred exemplary embodiment of the pump drive arrangement is characterized in that a consumer is preceded by a check valve that blocks in the direction of the pump outlet and in the direction of the shut-off valve. This enables the pump drive arrangement to be operated in a fluid arrangement that includes a fluid pressure accumulator. The check valve prevents, in a simple manner, the fluid pressure accumulator from being discharged in an undesired manner via the shut-off valve which is open in the rest position of the electric motor-driven pump.
Die oben angegebene Aufgabe ist alternativ oder zusätzlich durch ein Verfahren zum Betreiben einer vorab beschriebenen Pumpenantriebsanordnung gelöst.The above-mentioned object is alternatively or additionally achieved by a method for operating a previously described pump drive arrangement.
Die beanspruchte Pumpenantriebsanordnung kommt vorzugsweise in Aktoriksystemen von Getrieben in Kraftfahrzeugen zum Einsatz.The claimed pump drive arrangement is preferably used in actuator systems of transmissions in motor vehicles.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung verschiedene Ausführungsbeispiele im Einzelnen beschrieben sind. Es zeigen:
-
1 einen Fluidschaltplan mit einer Pumpenantriebsanordnung zum Antreiben mindestens einer elektromotorisch angetriebenen Pumpe gemäß einem ersten Ausführungsbeispiel; und -
2 den Fluidschaltplan aus1 gemäß einem zweiten Ausführungsbeispiel mit einem zusätzlichen Rückschlagventil.
-
1 a fluid circuit diagram with a pump drive arrangement for driving at least one electric motor-driven pump according to a first embodiment; and -
2 the fluid circuit diagram1 according to a second embodiment with an additional check valve.
In den
Die Pumpenantriebsanordnung
Eine Verzweigung
Eine Bypassleitung
Der fluidische Widerstand
Das Sperrventil
Nach dem Anlaufen der Pumpe
Wird die Pumpe
In
BezugszeichenlisteList of reference symbols
- 11
- FluidanordnungFluid assembly
- 22
- PumpenantriebsanordnungPump drive assembly
- 33
- Pumpepump
- 44th
- ElektromotorElectric motor
- 55
- Verbraucherconsumer
- 66th
- FluidreservoirFluid reservoir
- 77th
- PumpeneingangPump input
- 88th
- PumpenausgangPump outlet
- 99
- BypassleitungBypass line
- 1010
- SperrventilCheck valve
- 1111
- Verzweigungbranch
- 1212
- fluidischer Widerstandfluidic resistance
- 1313
- SteuerleitungControl line
- 2020th
- Rückschlagventilcheck valve
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent literature cited
- DE 102015225862 A1 [0002]DE 102015225862 A1 [0002]
- DE 102015202828 A1 [0002]DE 102015202828 A1 [0002]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019115725.0A DE102019115725A1 (en) | 2019-06-11 | 2019-06-11 | Pump drive assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019115725.0A DE102019115725A1 (en) | 2019-06-11 | 2019-06-11 | Pump drive assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102019115725A1 true DE102019115725A1 (en) | 2020-12-17 |
Family
ID=73546853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102019115725.0A Withdrawn DE102019115725A1 (en) | 2019-06-11 | 2019-06-11 | Pump drive assembly |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102019115725A1 (en) |
-
2019
- 2019-06-11 DE DE102019115725.0A patent/DE102019115725A1/en not_active Withdrawn
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |