EP1356208B1 - Pumpsystem mit einer hydraulischen pumpe, insbesondere für ein lenksystem - Google Patents
Pumpsystem mit einer hydraulischen pumpe, insbesondere für ein lenksystem Download PDFInfo
- Publication number
- EP1356208B1 EP1356208B1 EP02716707A EP02716707A EP1356208B1 EP 1356208 B1 EP1356208 B1 EP 1356208B1 EP 02716707 A EP02716707 A EP 02716707A EP 02716707 A EP02716707 A EP 02716707A EP 1356208 B1 EP1356208 B1 EP 1356208B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- cam ring
- actuator
- rotor
- electric motor
- 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.)
- Expired - Lifetime
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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
- 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
- F04C14/226—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 by pivoting the cam around an eccentric axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/06—Control
- F04B1/07—Control by varying the relative eccentricity between two members, e.g. a cam and a drive shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
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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
- 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
- F04C2/3441—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 the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
Definitions
- the invention relates to a pump system with a hydraulic pump, in particular for a steering system, according to the preamble of claim 1.
- Such a pump system is known from the document DE 34 20 519 A1, in which describes a radial piston pump that has a drivable rotor Includes radial bores in which pump pistons are arranged, which are located on the Inside of an encompassing cam ring, which is mounted eccentrically to the rotor support.
- a plurality of the circumference evenly distributed pump pistons more depending on the current position of the pump pistons or less radially pressed into their receiving radial bore in the rotor.
- the Pump pistons act on a fluid receiving space, depending on the position the pump piston sucks the fluid into or out of the receiving space is pushed out. In this way, an approximately constant fluid flow be promoted.
- a electrohydraulic pressure regulator is provided, the one the position of the outside Includes adjusting piston adjusting cam ring, which in dependence on a Control voltage to be fed to a proportional magnet must be adjusted.
- the invention is based on the problem of specifying a pump system that is precisely adjustable and is characterized by a good one Responsiveness with a simple construction distinguished.
- the pump system should be variably hand-held have and during operation to different external load requirements to be set.
- the pump system comprises a hydraulic one Pump for delivering hydraulic fluid to a consumer and on the other hand a control and / or regulating unit in which depending on measurement signals or other input signals Control signals can be generated, the actuator of the pump can be fed to adjust the pump output.
- the rules and regulations Control unit advantageously forms a separate from the pump executed unit, in which condition and operating variables of the consumer to whom the hydraulic fluid is supplied as the working medium will be supplied as input signals. additionally or as an alternative to the status and operating parameters of the Consumers can also use appropriate sizes of a dynamic Systems are considered in which the consumer is embedded and within which the consumer forms a subsystem.
- This pump system is particularly suitable for use in a steering system for steering the wheels in a motor vehicle, the steering system being the consumer who is supplied with hydraulic fluid by the hydraulic pump, and the motor vehicle represents the superordinate dynamic system, its condition is taken into account when setting the pump can be.
- This pump system offers the advantage of high variability, since the pump power via the signals of the regulating and control unit immediately adjusted to the requirements of the consumer can be what especially when used in Steering systems in motor vehicles leads to parameterizable Pumps can be realized in the steering system, their performance of state and system variables such as vehicle speed, the steering angular velocity and / or the yaw rate can be adjusted. Another advantage is that in the event that the system is in a stationary or quasi stationary state, a comparatively small Energy consumption can be realized.
- variable displacement pump is advantageously used as the pump as a vane pump, as a roller cell pump or as a radial piston pump is executed.
- the variable displacement pump has one inside a cam ring rotatably mounted and motor driven Rotor with radial bores with radially movable ones and towards the inside of the cam ring supportable pump elements, which have a fluid receiving space apply, the relative position between the cam ring and rotor via the actuator between a concentric position and an eccentric position is to be adjusted.
- the variation of the pump performance is carried out via the Control signals of the regulating and control unit through a Actuator caused adjustment of the relative position between Cam ring and rotor.
- the position of the outer, encompassing the rotor is expedient Curve ring via an actuator designed as an electric motor to adjust.
- the electromotive adjustment of the outer Curve ring has the advantage that very short response times can be realized to the power output to the current To set the request. Response times up to about 10 ms can be realized.
- the electric motor is very is precisely controllable and also small travel ranges, but with high forces go hand in hand, can be implemented. Possibly it can be useful here between the electric motor and to provide a reduction gear to the cam ring to the short travel distances and high positioning forces required to be able to realize relatively small electric motors.
- the pump and the electric motor acting on the cam ring basically form functionally independent units, a higher degree of flexibility is achieved, which in particular it comes about that only the motion transmission from the rotor of the electric motor to the cam ring must be guaranteed; additional support elements on the cam ring however, are not absolutely necessary.
- the power supply to the electric motor is also easier to accomplish as the hydraulic supply in known from the prior art hydraulic or electro-hydraulic control systems.
- the rotor of the electric motor is used to adjust the position of the cam ring advantageously connected to an eccentric disc, which either immediately the required actuating movement from The rotor of the electric motor is transferred to the cam ring or indirectly via an intermediate transmission lever.
- an indirect transmission is provided, is the intermediate Transmission lever is expediently translatory too move, the move being generated by one end of the transfer lever from a cam track on the eccentric disc is applied.
- the indirect transmission under Interposition of the transmission lever offers the advantage that due to the spatial separation of pump and electric motor a variety of arrangement options of the electric motor are given relative to the pump.
- the pump is useful via a closed control loop regulated, which is a sensor for measuring an actual size, the corresponds to the flow rate or pressure of the pump, and in addition, a control unit for comparing the Actual size with a stored or determined target value and the generation of one derived from the target-actual comparison Value for the electric current for the electric motor includes.
- the sensor is advantageous as a position sensor designed to determine the position of the cam ring, which are used as a measure of the delivery pressure or flow can be because of the amount of deflection of the cam ring compared to a symmetry or center position in relation to the rotor the pump determines the pump output.
- a magnetoresistive sensor can be used which measures the magnetic field of a permanent magnet, which on Rotor of the electric motor or one of these Component is arranged.
- a vane pump 1 which a first delivery line 2 hydraulic fluid from a hydraulic reservoir 3 sucks in and via a second delivery line 4 pumps increased pressure to a consumer 5.
- the consumer 5 is in particular a hydraulically actuated Steering system in a motor vehicle.
- a return line 6 leading to the hydraulic reservoir 3 returns and in which a safety valve 7 is integrated which is in the open position when a maximum pressure is exceeded is displaced so that hydraulic fluid from the delivery line 4 via the return line 6 into the hydraulic reservoir 3 can flow back.
- the safety valve 7 usually opens only at a maximum pressure, which is usually significantly higher is than the delivery pressure to be supplied to the consumer 5.
- the vane pump 1 includes one in a not shown Housing rotatably mounted rotor 8 by a Curved ring 9 is encompassed.
- the rotor 8 is driven by a drive unit driven, for example by an internal combustion engine.
- the rotor 8 has evenly distributed over its circumference Radial guides 10 in which are formed as displacers 11 Pump elements are radially slidably received.
- the displacers 11 are supported on the inside of the cam ring 9 from.
- the radial guides 10 communicate with a fluid receiving space for the hydraulic fluid to be pumped, one Relative movement of the radial pistons 11 in the radial bores 10 generates a suction or delivery pressure, which the hydraulic fluid from the hydraulic reservoir 3 and in the direction of Consumer 5 promotes.
- Pump 1 is a variable displacement pump with variable pump geometry educated. For this purpose, the position of the cam ring 9 relative to the rotor 8 continuously between a concentric Position and a maximum eccentric position in which the rotor 8 rests directly on an inside of the cam ring 9, be adjusted. The measure of the eccentric deflection of the cam ring 9 relative to the rotor 8 determines the delivery rate the radial piston pump 1.
- the cam ring 9 is rotatably supported about a bearing point 12. On the side radially opposite the bearing point 12 engages an actuator 13 on the cam ring 9; that as an electric motor 14 is executed and its to be transferred to the cam ring 9 Adjustment movement in a swivel movement in the direction of the arrow 15 of the cam ring is implemented around its bearing point 12, whereby the curve ring is stepless between its concentric and the maximum eccentric position is adjusted.
- the transfer the actuating movement of electric motor 14 on cam ring 9 expediently takes place via a transmission lever to be moved in translation 16, which is acted upon by the rotor of the electric motor is and tangentially engages the cam ring 9.
- Control signals S Stell which are generated in a regulating and control unit 18, are fed to the electric motor 14 for adjustment via signal lines 17.
- the control signals S Stell are generated according to a relationship stored in the regulating and control unit 18 as a map or as a calculation formula as a function of input signals S Ein , the status and operating variables of the pump 1, the consumer 5 and, if appropriate, other structural units, in particular an internal combustion engine, represent.
- the power P to be supplied to the consumer can also be achieved by Change in the pressure p to be supplied to the consumer changes be, for example, by a variably adjustable Aperture in the delivery line 4 to the consumer.
- FIG. 2 shows the radial piston pump 1 in an enlarged, schematic representation.
- the rotor 19 of the electric motor 14 is connected to an eccentric disc 20 by the electric motor is driven in rotation.
- On the peripheral surface of the eccentric disc 20 is the translationally displaceable transmission lever 16 on.
- the peripheral surface of the eccentric disc 20 forms a curved path for the transmission lever 16 so that the current position of the transmission lever from the current one Rotational position of the eccentric disc 20 is determined. That of the eccentric disc 20 opposite end of the transmission lever 16 engages tangentially on the radially opposite bearing point 12 Side of the cam ring 9 and twists it in Arrow direction 15 around its bearing point 12.
- FIG. 2 there are an intake opening 21 via which Supply hydraulic fluid from the hydraulic reservoir of the pump 1 and a pressure outlet opening 22, via which under pressure standing hydraulic fluid is to be supplied to the consumer.
- an in Fig. 4 shown position sensor 24 is provided, which is advantageously magnetoresistive and with a permanent magnet 25 interacts, which is useful on the front the eccentric disc 20 is arranged.
- the magnetoresistive Position sensor 24 is capable of that from the permanent magnet 25 generated magnetic field to measure. Because of the eccentric Arrangement of the eccentric disc 20 is from the position sensor 24 one from the current rotational position of the eccentric disc 20 dependent magnetic field senses from which to the rotating position can be closed. Since the eccentric disc 20 and Cam ring 9 are kinematically coupled, can be out of position the eccentric disc 20 also to the position of the cam ring 9 be inferred.
- the position sensor 24 is advantageously stationary on a circuit board 26 held on which additional evaluation components 27 arranged to evaluate the measurement signals of the position sensor 24 are.
- Fig. 4 can also be seen that on the electric motor 14 Reduction gear can be provided to the motor rotation of the electric motor in a smaller rotation, but with a higher one Torque to translate.
- FIG. 5 shows a closed control loop, which is implemented in particular in a regulating and control unit 18, for adjusting the electric motor 14 and thus the cam ring of the pump and the delivery rate of the pump.
- the current actual value of the eccentric disc or the cam ring or a value correlating with the position of the cam ring, such as flow rate or delivery pressure, is determined via the position sensor 24.
- the measured value is fed as an input signal S A to a sensor preamplifier 29 in which signal amplification is carried out.
- the amplified signal is fed to a controller 30, which comprises an analog-digital converter 31 for converting the amplified measurement signal into a digital value, a controller 32 and a pulse width modulator 33.
- the controller 30 is also assigned a CAN bus 34 for transmitting the vehicle signals to the controller 30 and a calibration memory 35 for calibrating the sensor 24.
- the function of the various subunits of the controller 30 is controlled and coordinated via a software control 36.
- the pulse width modulated signal generated in the controller 30 is amplified in an output stage 37 and fed to the electric motor 14 as an actuating signal S Stell for setting the same.
- the pump system described above is also suitable for use in gear systems, for example for lubricating-cooling switching pumps, or also in other applications in motor vehicles such as valve controls in internal combustion engines, Servo brakes etc.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Computer Hardware Design (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Fluid-Pressure Circuits (AREA)
Description
- Fig. 1
- eine schematische Darstellung einer Flügelzellenpumpe zur Förderung eines Hydraulikfluids aus einem Hydraulikreservoir zu einem Verbraucher, wobei ein die Pumpenleistung beeinflussender Kurvenring der Radialkolbenpumpe über einen Elektromotor zu verstellen ist,
- Fig. 2
- eine schematische Darstellung einer Flügelzellenpumpe mit einem Elektromotor mit Exzenterscheibe, deren Drehbewegung in eine lineare, translatorische Übertragungsbewegung eines Übertragungshebels umgesetzt wird,
- Fig. 3
- eine Fig. 2 entsprechende Darstellung, jedoch mit in den Kurvenring integrierter Exzenterscheibe, welche vom Läufer des Elektromotors angetrieben wird,
- Fig. 4
- ein magnetoresistiver Positionssensor, der mit einem auf der Exzenterscheibe angeordneten Permanentmagneten zusammenwirkt,
- Fig. 5
- ein Prinzipbild eines Regelkreises zur Einstellung des Elektromotors.
- 1
- Flügelzellenpumpe
- 2
- Förderleitung
- 3
- Hydraulikreservoir
- 4
- Förderleitung
- 5
- Verbraucher
- 6
- Rücklaufleitung
- 7
- Sicherheitsventil
- 8
- Rotor
- 9
- Kurvenring
- 10
- Radialführung
- 11
- Verdränger
- 12
- Lagerpunkt
- 13
- Stellglied
- 14
- Elektromotor
- 15
- Pfeilrichtung
- 16
- Übertragungshebel
- 17
- Signalleitungen
- 18
- Regel- und Steuereinheit
- 19
- Läufer
- 20
- Exzenterscheibe
- 21
- Ansaugöffnung
- 22
- Druckabgangsöffnung
- 23
- Exzenteraufnahme
- 24
- Positionssensor
- 25
- Permanentmagnet
- 26
- Platine
- 27
- Auswertekomponente
- 28
- Untersetzungsgetriebe
- 29
- Sensorvorverstärker
- 30
- Controller
- 31
- AD-Wandler
- 32
- Regler
- 33
- Pulsweitenmodulierer
- 34
- CAN-Bus
- 35
- Kalibrierspeicher
- 36
- Softwaresteuerung
- 37
- Endstufe
Claims (7)
- Pumpsystem mit einer hydraulischen Rotationspumpe für ein Lenksystem zur Lenkung der Räder in einem Kraftfahrzeug, mit folgenden Merkmalen:es ist ein die Pumpenleistung beeinflussendes Stellglied (13) vorgesehen, dem zur Einstellung Stellsignale (SStell) einer Regel- und Steuereinheit (18) zuführbar sind,der Regel- und Steuereinheit (18) sind Eingangssignale (SEin) zuführbar, die Zustands- und Betriebsgrössen eines Verbrauchers (5) und/oder eines dynamischen Systems darstellen, in welches der Verbraucher (5) integriert ist,die Stellsignale (SStell) sind gemäss einem in der Regel- und Steuereinheit abgespeicherten, funktionalen Zusammenhang in Abhängigkeit der Eingangssignale (SEin) erzeugbar und dem Stellglied (13) zuführbar unddas Stellglied (13) ist ein Elektromotor (14),die Rotationspumpe ist als Verstellpumpe ausgebildet und weist einen innerhalb eines Kurvenrings (9) drehbar gelagerten und motorisch angetriebenen Rotor (8) mit Radialbohrungen (10) mit darin radial verschieblichen und gegenüber der Innenseite des Kurvenrings abstützbaren Pumpelementen auf,das Stellglied (13) treibt eine Exzenterscheibe (20) an, deren Bewegung auf den Kurvenring (9) übertragbar ist, wodurch der Kurvenring (9) relativ zum Rotor (8) verstellbar ist,ein Positionssensor (24) zur Bestimmung der Position des Kurvenrings (9) oder einer damit korrelierenden Grösse ist vorgesehen und der das Stellglied (13) beaufschlagende elektrische Strom ist in Abhängigkeit von Messsignalen des Positionssensors (24) einzustellen,der Positionssensor (24) ist magnetoresistiv ausgebildet, wobei über die Messung des Magnetfelds eines Permanentmagneten (25), der am Stellglied (13) oder einem von diesem beaufschlagten Bauteil angeordnet ist, die aktuelle Position des Läufers des Elektromotors (19) bzw. des von diesem beaufschlagten Bauteils zu bestimmen ist.
- Pumpsystem nach Anspruch 1, dadurch gekennzeichnet, dass ein geschlossener Regelkreis zur Einstellung eines das Stellglied (13) beaufschlagenden elektrischen Stroms vorgesehen ist, wobei der Regelkreis den Positionssensor (24) zur Messung einer mit dem Förderstrom und/oder dem Förderdruck korrelierenden Istgrösse und einen Regler (32) zum Vergleich der Istgrösse mit einem Sollwert und einem daraus zu erzeugenden Wert für den elektrischen Strom umfasst.
- Pumpsystem nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass als Pumpe eine Flügelzellenpumpe bzw. Rollenzellenpumpe bzw. Radialkolbenpumpe verwendet wird, die einen innerhalb eines Kurvenrings (9) drehbar gelagerten und motorisch angetriebenen Rotor (8) mit Radialbohrungen (10) mit darin radial verschieblichen und gegenüber der Innenseite des Kurvenrings abstützbaren Pumpelementen aufweist, welche einen Fluidaufnahmeraum beaufschlagen, wobei die Relativposition zwischen Kurvenring (9) und Rotor (8) über das Stellglied (13) zwischen einer konzentrischen Lage und einer exzentrischen Lage zu verstellen ist.
- Pumpsystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zwischen Exzenterscheibe (20) und Kurvenring (9) ein translatorisch bewegbarer Übertragungshebel (16) vorgesehen ist.
- Pumpsystem einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Exzenterscheibe (20) unmittelbar am Kurvenring (9) angreift.
- Pumpsystem nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Kurvenring (9) um einen Lagerpunkt (12) drehbar gelagert ist und das Stellglied (13) mit Abstand zum Lagerpunkt (12) am Kurvenring (9) angreift.
- Pumpsystem nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zwischen dem Stellglied (13) und dem verstellbaren Kurvenring (9) ein Untersetzungsgetriebe (28) vorgesehen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10104851A DE10104851A1 (de) | 2001-02-03 | 2001-02-03 | Pumpsystem mit einer hydraulischen Pumpe, insbesondere für ein Lenksystem |
DE10104851 | 2001-02-03 | ||
PCT/EP2002/001023 WO2002063170A1 (de) | 2001-02-03 | 2002-02-01 | Pumpsystem mit einer hydraulischen pumpe, insbesondere für ein lenksystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1356208A1 EP1356208A1 (de) | 2003-10-29 |
EP1356208B1 true EP1356208B1 (de) | 2004-09-15 |
Family
ID=7672712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02716707A Expired - Lifetime EP1356208B1 (de) | 2001-02-03 | 2002-02-01 | Pumpsystem mit einer hydraulischen pumpe, insbesondere für ein lenksystem |
Country Status (6)
Country | Link |
---|---|
US (1) | US20040096334A1 (de) |
EP (1) | EP1356208B1 (de) |
JP (1) | JP2004522909A (de) |
DE (2) | DE10104851A1 (de) |
ES (1) | ES2229111T3 (de) |
WO (1) | WO2002063170A1 (de) |
Families Citing this family (21)
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DE10157527A1 (de) * | 2001-11-23 | 2003-06-05 | Zf Lenksysteme Gmbh | Hydraulische Hilfskraftlenkung für Kraftfahrzeuge |
DE50203640D1 (de) | 2001-11-23 | 2005-08-18 | Zf Lenksysteme Gmbh | Hydraulische hilfskraftlenkung und ein einstellverfahren für eine solche lenkung |
DE10157520A1 (de) * | 2001-11-23 | 2003-06-05 | Zf Lenksysteme Gmbh | Hydraulische Hilfskraftlenkung für Kraftfahrzeuge |
DE10157548A1 (de) * | 2001-11-23 | 2003-06-05 | Zf Lenksysteme Gmbh | Einstellverfahren für hydraulisch arbeitende Fahrzeug-Servolenkungen |
DE10256307A1 (de) * | 2002-12-03 | 2004-06-24 | O&K Orenstein & Koppel Ag | Hydraulische Lenkung für Fahrzeuge |
GB0322122D0 (en) | 2003-09-22 | 2003-10-22 | Dana Automotive Ltd | Pumping system |
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DE102006052996A1 (de) * | 2006-11-10 | 2008-05-15 | Zf Lenksysteme Gmbh | Flügelzellenpumpe |
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CA2679776A1 (en) * | 2008-10-08 | 2010-04-08 | Magna Powertrain Inc. | Direct control variable displacement vane pump |
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EP4450845A2 (de) * | 2013-03-15 | 2024-10-23 | ClearMotion, Inc. | Verbesserungen an einer aktiven fahrzeugaufhängung |
US9702349B2 (en) | 2013-03-15 | 2017-07-11 | ClearMotion, Inc. | Active vehicle suspension system |
US9174508B2 (en) | 2013-03-15 | 2015-11-03 | Levant Power Corporation | Active vehicle suspension |
EP3825156A1 (de) | 2013-04-23 | 2021-05-26 | ClearMotion, Inc. | Aktive aufhängung mit strukturellem aktuator |
DE102013220642B4 (de) * | 2013-10-14 | 2016-10-27 | Continental Automotive Gmbh | Vorrichtung und Verfahren zur Steuerung einer Dieselpumpe bei Nullförderung |
DE102014108945A1 (de) | 2014-06-26 | 2015-12-31 | Robert Bosch Automotive Steering Gmbh | Hydraulische Verstellpumpe, insbesondere für ein Lenksystem eines Kraftfahrzeuges |
US9702424B2 (en) | 2014-10-06 | 2017-07-11 | ClearMotion, Inc. | Hydraulic damper, hydraulic bump-stop and diverter valve |
DE102014221447A1 (de) | 2014-10-22 | 2016-04-28 | Zf Friedrichshafen Ag | Verstellpumpe |
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GB820648A (en) * | 1955-11-29 | 1959-09-23 | Desire Joseph Deschamps | Improvements in or relating to rotary pumps of the outwardly-sliding vane type |
DE1801137A1 (de) * | 1968-10-04 | 1970-04-16 | Bosch Gmbh Robert | Hydraulikanlage mit einer verstellbaren Pumpe |
US4537029A (en) * | 1982-09-23 | 1985-08-27 | Vickers, Incorporated | Power transmission |
JPS6035192A (ja) * | 1983-08-04 | 1985-02-22 | Nissan Motor Co Ltd | 可変容量型ベ−ンポンプ |
DE3420519A1 (de) * | 1984-06-01 | 1985-12-05 | Robert Bosch Gmbh, 7000 Stuttgart | Hydrostatischer antrieb |
JPS60259569A (ja) * | 1984-06-06 | 1985-12-21 | Nippon Soken Inc | 可変容量制御装置 |
DE3422089A1 (de) * | 1984-06-14 | 1985-12-19 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum regeln des druckes und der foerdermenge einer verstellbaren pumpe |
US4578948A (en) * | 1984-11-01 | 1986-04-01 | Sundstrand Corporation | Reversible flow vane pump with improved porting |
JP2540126B2 (ja) * | 1985-03-19 | 1996-10-02 | アイシン・エィ・ダブリュ 株式会社 | 可変容量ポンプの制御装置 |
JPS62218670A (ja) * | 1986-03-19 | 1987-09-26 | Diesel Kiki Co Ltd | 可変容量型揺動板式圧縮機 |
JP2503227B2 (ja) * | 1987-04-06 | 1996-06-05 | 日産自動車株式会社 | 車両用油圧供給装置 |
DE3826359A1 (de) * | 1987-08-11 | 1989-02-23 | Volkswagen Ag | Elektrisch angetriebener stellantrieb |
DE3834201A1 (de) * | 1988-04-22 | 1989-11-02 | Rexroth Mannesmann Gmbh | Anordnung zum zufuehren von druckmittel zu hydraulischen verbrauchern |
JP2915626B2 (ja) * | 1990-07-25 | 1999-07-05 | 株式会社ユニシアジェックス | 可変容量型ベーンポンプ |
US5335979A (en) * | 1992-10-09 | 1994-08-09 | Mitsubishi Denki Kabushiki Kaisha | Control device for vehicle including anti-skid braking system and power steering control system |
DE19513987C2 (de) * | 1995-04-13 | 1998-10-08 | Bosch Gmbh Robert | Verstellbare, hydrostatische Radialkolbenmaschine |
US5865087A (en) * | 1996-10-18 | 1999-02-02 | Olson; Howard A. | Rotary variable displacement fluid power device |
DE19915739A1 (de) * | 1999-04-08 | 2000-10-12 | Bayerische Motoren Werke Ag | Mengenregelbare Flügelzellenpumpe |
JP3933843B2 (ja) * | 2000-04-27 | 2007-06-20 | ユニシア ジェーケーシー ステアリングシステム株式会社 | 可変容量形ポンプ |
-
2001
- 2001-02-03 DE DE10104851A patent/DE10104851A1/de not_active Withdrawn
-
2002
- 2002-02-01 WO PCT/EP2002/001023 patent/WO2002063170A1/de active IP Right Grant
- 2002-02-01 DE DE50201013T patent/DE50201013D1/de not_active Expired - Lifetime
- 2002-02-01 JP JP2002562884A patent/JP2004522909A/ja active Pending
- 2002-02-01 EP EP02716707A patent/EP1356208B1/de not_active Expired - Lifetime
- 2002-02-01 US US10/466,570 patent/US20040096334A1/en not_active Abandoned
- 2002-02-01 ES ES02716707T patent/ES2229111T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE10104851A1 (de) | 2002-08-22 |
JP2004522909A (ja) | 2004-07-29 |
DE50201013D1 (de) | 2004-10-21 |
US20040096334A1 (en) | 2004-05-20 |
WO2002063170A1 (de) | 2002-08-15 |
EP1356208A1 (de) | 2003-10-29 |
ES2229111T3 (es) | 2005-04-16 |
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