DE102014108945A1 - Hydraulic variable displacement pump, in particular for a steering system of a motor vehicle - Google Patents
Hydraulic variable displacement pump, in particular for a steering system of a motor vehicle Download PDFInfo
- Publication number
- DE102014108945A1 DE102014108945A1 DE102014108945.6A DE102014108945A DE102014108945A1 DE 102014108945 A1 DE102014108945 A1 DE 102014108945A1 DE 102014108945 A DE102014108945 A DE 102014108945A DE 102014108945 A1 DE102014108945 A1 DE 102014108945A1
- Authority
- DE
- Germany
- Prior art keywords
- cam ring
- variable displacement
- sensor device
- lid
- displacement pump
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
- F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
- F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/81—Sensor, e.g. electronic sensor for control or monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
- G01D5/2013—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by a movable ferromagnetic element, e.g. a core
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Eine hydraulische Verstellpumpe, insbesondere für ein Lenksystem zur Lenkung der Räder in einem Kraftfahrzeug, ist mit einem in einem Pumpengehäuse (3) angeordneten Rotor (1), mit einem den Rotor (1) umgebenden Kurvenring (4), mit einer Regeleinrichtung zur Einstellung der Lage des Kurvenrings (4) relativ zum Rotor (1), mit einem stirnseitigen Deckel (8) und mit einer Steuerplatte (11) versehen. In dem Deckel (8) oder der Steuerplatte (11) ist eine Sensoreinrichtung (7) zur Positionsbestimmung des Kurvenrings (4) angeordnet.A hydraulic variable displacement pump, in particular for a steering system for steering the wheels in a motor vehicle, is provided with a rotor (1) arranged in a pump housing (3) with a cam ring (4) surrounding the rotor (1), with a control device for adjusting the Position of the cam ring (4) relative to the rotor (1), provided with a front-side cover (8) and with a control plate (11). A sensor device (7) for determining the position of the cam ring (4) is arranged in the cover (8) or the control plate (11).
Description
Die Erfindung betrifft eine hydraulische Verstellpumpe, insbesondere für ein Lenksystem zur Lenkung der Räder in einem Kraftfahrzeug nach der im Oberbegriff in Anspruch 1 näher definierten Art. The invention relates to a hydraulic variable displacement pump, in particular for a steering system for steering the wheels in a motor vehicle according to the closer defined in the preamble in
Verstellpumpen für ein Lenksystem eines Kraftfahrzeuges sind in Form von Flügelzellen-, Rollenzellen- und Radialkolbenpumpen bekannt. Zur Einstellung der Höhe des Förderstromes und/oder des Förderdruckes sind elektrohydraulische Druckregler bekannt, die ein die Position eines Kurvenringes verstellbares Stellglied aufweisen. Variable displacement pumps for a steering system of a motor vehicle are known in the form of vane, roller cell and radial piston pumps. To adjust the height of the flow and / or the delivery pressure electrohydraulic pressure regulator are known, which have an adjustable position of a cam ring actuator.
Aus der
Die
Messungen des Druck- oder Volumenstromes im hydraulischen Bereich haben den Nachteil, dass durch Schmutzpartikel im Öl und unterschiedlichen Temperaturen die Messgenauigkeit leidet. Measurements of the pressure or volume flow in the hydraulic range have the disadvantage that due to dirt particles in the oil and different temperatures, the measurement accuracy suffers.
Mechanische Sensoreinrichtungen über z. B. Taster oder Stößel sind relativ aufwändig und damit teuer und auch störanfällig. Messungen unter Verwendung eines magnetischen Kurvenringes sind durch sich auf dem Kurvenring sammelnde Metallpartikel ebenfalls problematisch. Mechanical sensor devices about z. As buttons or plunger are relatively expensive and therefore expensive and prone to failure. Measurements using a magnetic cam ring are also problematic due to metal particles collecting on the cam ring.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine hydraulische Verstellpumpe mit einer Sensoreinrichtung zur Feststellung der Lage des Kurvenringes relativ zum Rotor so zu gestalten, dass eine hohe Messgenauigkeit bei einer relativ einfachen Montage erreicht wird, wobei keine störenden Einflüsse durch den Betrieb der Verstellpumpe auftreten sollen. The present invention has for its object to make a hydraulic variable displacement pump with a sensor device for detecting the position of the cam ring relative to the rotor so that a high accuracy of measurement is achieved with a relatively simple installation, with no disturbing influences to occur through the operation of the variable ,
Erfindungsgemäß wird diese Aufgabe durch die im kennzeichnenden Teil von Anspruch 1 genannte Anordnung und Ausbildung der Sensoreinrichtung gelöst. According to the invention this object is achieved by the mentioned in the characterizing part of
Die erfindungsgemäße Anordnung der Sensoreinrichtung ragt auf diese Weise nicht in den hydraulischen Bereich der Pumpe. Durch die Anordnung in einer der beiden Steuerplatten, vorzugsweise im Deckel, der mit Steuerflächen versehen ist, seitlich vom Kurvenring bzw. dessen Stirnseite kann eine überfahrende Kante bzw. ein Überdeckungsgrad gemessen werden. The inventive arrangement of the sensor device does not protrude in this way in the hydraulic range of the pump. By arranging in one of the two control plates, preferably in the lid, which is provided with control surfaces, laterally from the cam ring or the end face of which a trailing edge or a degree of coverage can be measured.
Die vorstehend zum Stand der Technik genannten Nachteile bzw. Einflussfaktoren sind bei dieser Messmethode ohne Bedeutung. Darüber hinaus ist die Montage der Sensoreinrichtung relativ einfach, insbesondere wenn sie im Deckel angeordnet ist. The above-mentioned prior art disadvantages or influencing factors are of no importance in this measurement method. In addition, the mounting of the sensor device is relatively simple, especially if it is arranged in the lid.
Als Messprinzip kann beispielsweise eine induktive oder vorgespannte Magnetsensorik verwendet werden. As an example, an inductive or preloaded magnetic sensor can be used as a measuring principle.
Nachfolgend ist ein Ausführungsbeispiel der Erfindung anhand der Zeichnung prinzipmäßig beschrieben. Hereinafter, an embodiment of the invention will be described in principle with reference to the drawing.
Es zeigt It shows
Die Flügelzellenpumpe ist grundsätzlich von bekannter Bauart, weshalb nachfolgend nur auf die für die Erfindung wesentlichen Teile näher eingegangen wird. Gleiches gilt für die in Frage kommenden Sensoreinrichtungen, welche ebenfalls grundsätzlich für das erfindungsgemäße Messverfahren bekannt sind. The vane pump is basically of a known type, which is why below will be discussed only on the essential parts of the invention in more detail. The same applies to the sensor devices in question, which are also basically known for the measuring method according to the invention.
Die Flügelzellenpumpe weist einen Rotor
Eine Sensoreinrichtung
Aus konstruktiven Gründen wird man die Sensoreinrichtung
Die Sensoreinrichtung
Weiterhin ist beispielsweise auch eine Sensoreinrichtung mit Magnetfeldsensoren, zum Beispiel eine vorgespannte Magnetsensorik nach dem Hallprinzip möglich. Dabei sind ein Magnet und ein Hallsensor im Deckel
Wie aus der
Zur Messung der Position des Kurvenrings
Bei dem zweiten Messverfahren weist der Kurvenring
In der
Die erfindungsemäße Vertellpumpe ist selbstverständlich nicht nur für Getriebe von Lenksystemen geeignet, sondern auch auf anderen Gebieten mit Automatikgetrieben verwendbar. The inventive priming pump is of course not only suitable for transmission of steering systems, but also used in other areas with automatic transmissions.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1 1
- Rotor rotor
- 2 2
- Flügel wing
- 3 3
- Pumpengehäuse pump housing
- 4 4
- Kurvenring cam ring
- 5 5
- Druck- bzw. Saugräume Pressure or suction chambers
- 6 6
- Pfeile arrows
- 7 7
- Sensoreinrichtung sensor device
- 8 8th
- Deckel cover
- 9 9
- Sensor sensor
- 10 10
- Sensorglied sensor element
- 11 11
- Steuerplatte control plate
- 12 12
- Sackbohrung blind hole
- 13 13
- Abschrägung bevel
- 14 14
- Gestrichelte Linie Dashed line
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE 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 has been 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 PatentliteraturCited patent literature
- DE 10104851 A1 [0003] DE 10104851 A1 [0003]
- EP 0104613 B1 [0004] EP 0104613 B1 [0004]
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014108945.6A DE102014108945A1 (en) | 2014-06-26 | 2014-06-26 | Hydraulic variable displacement pump, in particular for a steering system of a motor vehicle |
CN201510362036.9A CN105317674B (en) | 2014-06-26 | 2015-06-26 | Hydraulic variable displacement pump, particularly hydraulic variable displacement pump for motor vehicle steering system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014108945.6A DE102014108945A1 (en) | 2014-06-26 | 2014-06-26 | Hydraulic variable displacement pump, in particular for a steering system of a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102014108945A1 true DE102014108945A1 (en) | 2015-12-31 |
Family
ID=54839545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102014108945.6A Pending DE102014108945A1 (en) | 2014-06-26 | 2014-06-26 | Hydraulic variable displacement pump, in particular for a steering system of a motor vehicle |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN105317674B (en) |
DE (1) | DE102014108945A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0118385B1 (en) * | 1983-03-04 | 1987-11-25 | Stanadyne Inc. | Fuel injection pump with plunger stroke control |
EP0104613B1 (en) | 1982-09-23 | 1988-03-30 | Vickers Incorporated | Power transmission |
DE19513987A1 (en) * | 1995-04-13 | 1996-10-17 | Bosch Gmbh Robert | Adjustable, hydrostatic radial piston machine |
DE10104851A1 (en) | 2001-02-03 | 2002-08-22 | Zf Lenksysteme Gmbh | Pump system with a hydraulic pump, in particular for a steering system |
DE10337653A1 (en) * | 2003-08-16 | 2005-03-10 | Zf Lenksysteme Gmbh | Steering system for automobile, including servo steering pump with adjustable ring displaced from neutral center position in either direction for selecting pump feed direction |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4285639A (en) * | 1979-06-12 | 1981-08-25 | Parker-Hannifin Corporation | Electronic control for variable displacement pumps |
US6736604B2 (en) * | 2001-06-18 | 2004-05-18 | Unisia Jkc Steering Systems Co., Ltd. | Control apparatus of variable displacement pump for power steering apparatus |
-
2014
- 2014-06-26 DE DE102014108945.6A patent/DE102014108945A1/en active Pending
-
2015
- 2015-06-26 CN CN201510362036.9A patent/CN105317674B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0104613B1 (en) | 1982-09-23 | 1988-03-30 | Vickers Incorporated | Power transmission |
EP0118385B1 (en) * | 1983-03-04 | 1987-11-25 | Stanadyne Inc. | Fuel injection pump with plunger stroke control |
DE19513987A1 (en) * | 1995-04-13 | 1996-10-17 | Bosch Gmbh Robert | Adjustable, hydrostatic radial piston machine |
DE10104851A1 (en) | 2001-02-03 | 2002-08-22 | Zf Lenksysteme Gmbh | Pump system with a hydraulic pump, in particular for a steering system |
DE10337653A1 (en) * | 2003-08-16 | 2005-03-10 | Zf Lenksysteme Gmbh | Steering system for automobile, including servo steering pump with adjustable ring displaced from neutral center position in either direction for selecting pump feed direction |
Also Published As
Publication number | Publication date |
---|---|
CN105317674B (en) | 2018-08-03 |
CN105317674A (en) | 2016-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R081 | Change of applicant/patentee |
Owner name: PUMP TECHNOLOGY SOLUTIONS PS GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH AUTOMOTIVE STEERING GMBH, 73527 SCHWAEBISCH GMUEND, DE Owner name: ROBERT BOSCH GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH AUTOMOTIVE STEERING GMBH, 73527 SCHWAEBISCH GMUEND, DE |
|
R012 | Request for examination validly filed | ||
R081 | Change of applicant/patentee |
Owner name: PUMP TECHNOLOGY SOLUTIONS PS GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH GMBH, 70469 STUTTGART, DE |
|
R082 | Change of representative |
Representative=s name: LORENZ & KOLLEGEN PATENTANWAELTE PARTNERSCHAFT, DE |
|
R016 | Response to examination communication |