EP2564068A2 - Hydraulic transport device and electrohydraulic control module - Google Patents
Hydraulic transport device and electrohydraulic control moduleInfo
- Publication number
- EP2564068A2 EP2564068A2 EP11729358A EP11729358A EP2564068A2 EP 2564068 A2 EP2564068 A2 EP 2564068A2 EP 11729358 A EP11729358 A EP 11729358A EP 11729358 A EP11729358 A EP 11729358A EP 2564068 A2 EP2564068 A2 EP 2564068A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- detection element
- hydraulic
- electric motor
- control
- 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.)
- Ceased
Links
Classifications
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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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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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
- F04C14/08—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the rotational speed
-
- 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
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/007—General arrangements of parts; Frames and supporting elements
-
- 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
- F04B2201/00—Pump parameters
- F04B2201/12—Parameters of driving or driven means
- F04B2201/1201—Rotational speed of the axis
-
- 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
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0209—Rotational speed
-
- 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
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/05—Speed
- F04C2270/052—Speed angular
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/80—Diagnostics
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/86—Detection
Definitions
- the invention relates to a hydraulic conveyor for conveying a hydraulic medium, with at least one pump, which is driven by an electric motor, and with a control unit.
- the invention further relates to an electro-hydraulic control module with such a hydraulic conveyor.
- Such conveyors are needed, inter alia, for hydraulic controls of vehicle transmissions.
- the pumps generate a volume flow for various tasks in the hydraulic control, such as the actuation of adjusting cylinders with high pressure and / or flow rate demand or the supply of cooling and / or lubricating medium to certain components.
- the pumps are driven by an electric motor.
- the speed of the pump and / or the electric motor driving the pump is often required, so that a speed detection is required. It is known to detect the speed of the pump directly as a speed of the electric motor, so make a speed sensing directly on or in the electric motor driving the pump.
- the detected speed signals are optionally processed and passed on by means of a signal line and connectors to a controller and further processed there.
- the signal lines can also serve as control and or power supply lines.
- the at least one Speed sensor comprises, which can be positioned on a support body for detecting the rotational speed of the electric motor.
- the object of the invention is to provide a cost and space-saving hydraulic conveyor according to the preamble of claim 1.
- a hydraulic conveyor for conveying a hydraulic medium, with at least one pump, which is driven by an electric motor, and with a control unit, characterized in that in the pump, a passive detection element, in particular speed detection element, is arranged, with an active Detection element, in particular speed detection element, cooperates, which is arranged in the control unit.
- the active speed detection element is integrated into the control unit. This provides the advantage that can be completely dispensed with a speed signal management between the electric motor and the control unit. Furthermore, no additional housing parts for the speed sensor system are needed. Alternatively or in addition to the speed detection elements, other detection elements, such as torque sensing elements, can also be used.
- the electric motor is preferably a BLDC (Brushless Direct Current) electric motor which is provided with detection elements, in particular sensors.
- a preferred embodiment of the hydraulic conveyor is characterized in that the pump is arranged between the electric motor and the control unit.
- the pump is preferably designed as a gear pump, in particular as an external gear pump.
- a further preferred embodiment of the hydraulic conveying device is characterized in that the pump comprises a pump shaft with an end on which the passive speed detecting element is mounted.
- the other end of the pump shaft can be coupled or coupled to the electric motor, for example via a coupling.
- the passive speed detection element comprises a magnet which is rotatably connected to the pump shaft.
- the magnet interacts electromagnetically with the active speed detection element.
- a further preferred embodiment of the hydraulic conveying device is characterized in that the pump shaft is arranged coaxially with a motor shaft of the electric motor. The pump shaft and the motor shaft preferably have a common axis of rotation.
- a further preferred embodiment of the hydraulic conveyor is characterized in that the active speed detection element is arranged in a control housing body.
- the control housing body is part of a housing of the control unit.
- a further preferred embodiment of the hydraulic conveying device is characterized in that the control housing body comprises a relatively thin housing wall, which is arranged between the active and the passive speed detection element. During operation of the pump, speed signals are transmitted through the housing wall. The transmitted speed signals can be further processed directly in the control unit.
- the pump is arranged in a control plate assembly which is arranged between the control housing body and the electric motor.
- a plurality of pumps can be arranged in the control plate assembly and a plurality of pumps can be arranged.
- a plurality of control plates between the control housing body and the electric motor are arranged.
- a pump is arranged in each control plate.
- two control plates are each arranged with a pump between the control housing body and the electric motor.
- Another preferred embodiment of the hydraulic conveyor is characterized in that the electric motor is mounted on the control plate assembly.
- the electric motor is bolted to the control plate assembly, for example.
- the invention further relates to an electro-hydraulic control module with a hydraulic conveyor described above.
- the electro-hydraulic control module is preferably used to control a vehicle transmission.
- the hydraulic conveyor serves to generate a hydraulic volume flow for various tasks in the hydraulic control of the vehicle transmission.
- FIG. 1 shows an electro-hydraulic control module with a hydraulic conveyor according to the invention in section
- Figure 2 shows a detail of a pump of the hydraulic conveyor of Figure 1 in section.
- an electro-hydraulic control module 1 with a hydraulic conveyor 4 is shown in section.
- the hydraulic conveying device 4 comprises a first pump 6 and a second pump 8.
- the two pumps 6, 8 are driven by an electric motor 10.
- the electric motor 10 is connected via e- lectric connection cable 11, 12 to an electrical power supply.
- the control module 1 or the conveyor 4 further comprises a control unit 15 with a control housing body 16. Between the control housing body 16 and the electric motor 10, a control plate assembly 20 having a first control plate 21 and a second control plate 22 is arranged. Between the two control plates 21, 22 an intermediate plate 23 is arranged. The electric motor 10 is fastened by means of screws 25 to the upper control plate 21 of the control plate assembly 20 in FIG.
- the first pump 6 is integrated in the first control plate 21.
- the second pump 8 is integrated in the second control plate 22.
- the two pumps 6, 8 are both designed as external gear pumps and driven by a motor shaft 28 of the electric motor 10.
- the free End of the motor shaft 28 is coupled via a coupling 29 with a common pump shaft 30 of the two pumps 6, 8.
- the coupling 29 connects the free end of the motor shaft 28 in a rotationally fixed manner with an end of the pump shaft 30 which is open in FIG. 1.
- the motor shaft 28 and the pump shaft 30 have a common axis of rotation 33 which extends in the vertical direction in FIG.
- a lower end in FIG. 1 of the common pump shaft 30 can be coupled or coupled via a further clutch 34 to a pump gear 35 of the second pump 8.
- a pump gear of the first pump 6 is permanently connected in a rotationally fixed manner to the common pump shaft 30.
- the second pump 8 comprises a pump cover 38 which closes the second control plate 22, which is open at the bottom in FIG.
- the pump cover 38 includes below the coupling 34 of the second pump 8 has a recess in which a passive speed detection element 41 is arranged freely rotatable.
- the passive speed detection element 41 is rotatably connected to the lower end in FIG. 1 of the common pump shaft 30.
- the passive speed detection element 41 is preferably designed as a magnet and fixedly connected to the lower end in FIG. 1 of the common pump shaft 30.
- the passive speed detection element 41 interacts electromagnetically with an active speed element 42, which is indicated in Figure 1 by a rectangle.
- the active speed detection element 42 is separated from the passive speed detection element 41 by a relatively thin housing wall of the control housing body 16 and by another relatively thin housing wall of the pump cover 38.
- the two housing walls are designed so thin that speed signals during operation of the hydraulic conveyor 4 are transmitted from the passive speed detection element 41 to the active speed detection element 42.
- the two speed detection elements 41, 42 together represent a speed sensor device 40, with which the speed of the common pump shaft 30 and thus the speed of the motor shaft 28 of the electric motor 10 can be detected in a simple manner.
- the detected speed signals can be further processed directly in the control unit 15.
- FIG. 2 shows that the pump gear 35 of the second pump 8 is designed as an external gear with external toothing 54.
- the outer gear 35 meshes with a wide ren outer gear 55 to promote as external gear pump hydraulic medium.
- the speed sensing can also take place via the teeth of the pump gears 35, 55.
- the passive speed detection element is represented by at least one tooth or all teeth of at least one external gear of the external gear pump. Then, an additional passive sensor detection element can be omitted.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Hydraulische Fördereinrichtung und elektrohydraulisches Steuerunqsmodul Hydraulic conveyor and electro-hydraulic control module
Die Erfindung betrifft eine hydraulische Fördereinrichtung zum Fördern eines Hydraulikmediums, mit mindestens einer Pumpe, die durch einen Elektromotor angetrieben ist, und mit einem Steuergerät. Die Erfindung betrifft des Weiteren ein elektrohydraulisches Steuerungsmodul mit einer derartigen hydraulischen Fördereinrichtung. The invention relates to a hydraulic conveyor for conveying a hydraulic medium, with at least one pump, which is driven by an electric motor, and with a control unit. The invention further relates to an electro-hydraulic control module with such a hydraulic conveyor.
Solche Fördereinrichtungen werden unter anderem für hydraulische Steuerungen von Fahrzeuggetrieben benötigt. Die Pumpen erzeugen einen Volumenstrom für verschiedene Aufgaben in der hydraulischen Steuerung, wie beispielsweise die Betätigung von Stellzylindern mit hohem Druck- und/oder Volumenstrombedarf oder die Zuführung von Kühl- und/oder Schmiermedium zu bestimmten Bauteilen. Bei einigen dieser hydraulischen Steuerungen werden die Pumpen mittels eines Elektromotors angetrieben. Such conveyors are needed, inter alia, for hydraulic controls of vehicle transmissions. The pumps generate a volume flow for various tasks in the hydraulic control, such as the actuation of adjusting cylinders with high pressure and / or flow rate demand or the supply of cooling and / or lubricating medium to certain components. In some of these hydraulic controls, the pumps are driven by an electric motor.
Um eine optimale Funktion der hydraulischen Steuerung zu gewährleisten, wird häufig die Drehzahl der Pumpe und/oder des die Pumpe antreibenden Elektromotors benötigt, so dass eine Drehzahlerfassung erforderlich ist. Es ist bekannt, die Drehzahl der Pumpe direkt als Drehzahl des Elektromotors zu erfassen, also eine Drehzahlsensierung direkt am oder im die Pumpe antreibenden Elektromotor vorzunehmen. Die erfassten Drehzahlsignale werden gegebenenfalls aufbereitet und mittels einer Signalleitung und Steckverbindungen an ein Steuergerät weitergegeben und dort weiterverarbeitet. Die Signalleitungen können auch als Steuer- und oder Energieversorgungsleitungen dienen. To ensure optimum operation of the hydraulic control, the speed of the pump and / or the electric motor driving the pump is often required, so that a speed detection is required. It is known to detect the speed of the pump directly as a speed of the electric motor, so make a speed sensing directly on or in the electric motor driving the pump. The detected speed signals are optionally processed and passed on by means of a signal line and connectors to a controller and further processed there. The signal lines can also serve as control and or power supply lines.
Diese Art der Drehzahlsensierung weist den Nachteil auf, dass am Elektromotor zusätzlicher Bauraum erforderlich ist. Dies kann je nach Bauraumbedingungen zu erheblichen Problemen führen. Ein weiterer Nachteil besteht darin, dass eine am Elektromotor angebaute Einrichtung zur Erfassung der Drehzahl zusätzliche Gehäuseteile und somit zusätzliche Kosten bedeutet. Gleiches gilt für die Signalweiterleitung und Leitungskontaktierung zwischen Elektromotor und Steuergerät. This type of speed sensing has the disadvantage that additional space is required on the electric motor. This can lead to considerable problems depending on the installation space conditions. Another disadvantage is that means attached to the electric motor for detecting the speed additional housing parts and thus additional costs. The same applies to the signal forwarding and line contact between the electric motor and the control unit.
Aus der deutschen Offenlegungsschrift DE 100 06 320 A1 ist ein Verfahren zur elektrischen Verbindung eines Elektromotors und eines Elektronikmoduls bekannt, das mindestens einen Drehzahlsensor umfasst, der zur Erfassung der Drehzahl des Elektromotors auf einem Trägerkörper positioniert werden kann. From the German patent application DE 100 06 320 A1 a method for the electrical connection of an electric motor and an electronic module is known, the at least one Speed sensor comprises, which can be positioned on a support body for detecting the rotational speed of the electric motor.
Aufgabe der Erfindung ist es, eine kosten- und bauraumgünstige hydraulische Fördereinrichtung gemäß dem Oberbegriff des Anspruchs 1 zu schaffen. The object of the invention is to provide a cost and space-saving hydraulic conveyor according to the preamble of claim 1.
Die Aufgabe ist bei einer hydraulischen Fördereinrichtung zum Fördern eines Hydraulikmediums, mit mindestens einer Pumpe, die durch einen Elektromotor angetrieben ist, und mit einem Steuergerät, dadurch gelöst, dass in der Pumpe ein passives Erfassungselement, insbesondere Drehzahlerfassungselement, angeordnet ist, das mit einem aktiven Erfassungselement, insbesondere Drehzahlerfassungselement, zusammenwirkt, das in dem Steuergerät angeordnet ist. Gemäß einem wesentlichen Aspekt der Erfindung wird das aktive Drehzahlerfassungselement in das Steuergerät integriert. Das liefert den Vorteil, dass auf eine Drehzahlsignalführung zwischen dem Elektromotor und dem Steuergerät vollständig verzichtet werden kann. Weiterhin werden keine zusätzlichen Gehäuseteile für die Drehzahlsensorik benötigt. Alternativ oder zusätzlich zu den Drehzahlerfassungselementen können auch andere Erfassungselemente, wie Drehmomenterfassungselemente, verwendet werden. Bei dem Elektromotor handelt es sich vorzugsweise um einen BLDC (Brushless Direct Current) Elektromotor, der mit Erfassungselementen, insbesondere Sensoren, versehen ist. The object is achieved in a hydraulic conveyor for conveying a hydraulic medium, with at least one pump, which is driven by an electric motor, and with a control unit, characterized in that in the pump, a passive detection element, in particular speed detection element, is arranged, with an active Detection element, in particular speed detection element, cooperates, which is arranged in the control unit. According to an essential aspect of the invention, the active speed detection element is integrated into the control unit. This provides the advantage that can be completely dispensed with a speed signal management between the electric motor and the control unit. Furthermore, no additional housing parts for the speed sensor system are needed. Alternatively or in addition to the speed detection elements, other detection elements, such as torque sensing elements, can also be used. The electric motor is preferably a BLDC (Brushless Direct Current) electric motor which is provided with detection elements, in particular sensors.
Ein bevorzugtes Ausführungsbeispiel der hydraulischen Fördereinrichtung ist dadurch gekennzeichnet, dass die Pumpe zwischen dem Elektromotor und dem Steuergerät angeordnet ist. Die Pumpe ist vorzugsweise als Zahnradpumpe, insbesondere als Außenzahnradpumpe, ausgeführt. A preferred embodiment of the hydraulic conveyor is characterized in that the pump is arranged between the electric motor and the control unit. The pump is preferably designed as a gear pump, in particular as an external gear pump.
Ein weiteres bevorzugtes Ausführungsbeispiel der hydraulischen Fördereinrichtung ist dadurch gekennzeichnet, dass die Pumpe eine Pumpenwelle mit einem Ende umfasst, an dem das passive Drehzahlerfassungselement angebracht ist. Das andere Ende der Pumpenwelle ist, zum Beispiel über eine Kupplung, mit dem Elektromotor koppelbar beziehungsweise gekoppelt. A further preferred embodiment of the hydraulic conveying device is characterized in that the pump comprises a pump shaft with an end on which the passive speed detecting element is mounted. The other end of the pump shaft can be coupled or coupled to the electric motor, for example via a coupling.
Ein weiteres bevorzugtes Ausführungsbeispiel der hydraulischen Fördereinrichtung ist dadurch gekennzeichnet, dass das passive Drehzahlerfassungselement einen Magneten umfasst, der drehfest mit der Pumpenwelle verbunden ist. Der Magnet wirkt elektromagnetisch mit dem aktiven Drehzahlerfassungselement zusammen. Ein weiteres bevorzugtes Ausführungsbeispiel der hydraulischen Fördereinrichtung ist dadurch gekennzeichnet, dass die Pumpenwelle koaxial zu einer Motorwelle des Elektromotors angeordnet ist. Die Pumpenwelle und die Motorwelle weisen vorzugsweise eine gemeinsame Drehachse auf. Another preferred embodiment of the hydraulic conveyor is characterized in that the passive speed detection element comprises a magnet which is rotatably connected to the pump shaft. The magnet interacts electromagnetically with the active speed detection element. A further preferred embodiment of the hydraulic conveying device is characterized in that the pump shaft is arranged coaxially with a motor shaft of the electric motor. The pump shaft and the motor shaft preferably have a common axis of rotation.
Ein weiteres bevorzugtes Ausführungsbeispiel der hydraulischen Fördereinrichtung ist dadurch gekennzeichnet, dass das aktive Drehzahlerfassungselement in einem Steuergehäusekörper angeordnet ist. Der Steuergehäusekörper ist Teil eines Gehäuses des Steuergeräts. A further preferred embodiment of the hydraulic conveyor is characterized in that the active speed detection element is arranged in a control housing body. The control housing body is part of a housing of the control unit.
Ein weiteres bevorzugtes Ausführungsbeispiel der hydraulischen Fördereinrichtung ist dadurch gekennzeichnet, dass der Steuergehäusekörper eine relativ dünne Gehäusewand um- fasst, die zwischen dem aktiven und dem passiven Drehzahlerfassungselement angeordnet ist. Im Betrieb der Pumpe werden Drehzahlsignale durch die Gehäusewand übertragen. Die übertragenen Drehzahlsignale können direkt in dem Steuergerät weiter verarbeitet werden. A further preferred embodiment of the hydraulic conveying device is characterized in that the control housing body comprises a relatively thin housing wall, which is arranged between the active and the passive speed detection element. During operation of the pump, speed signals are transmitted through the housing wall. The transmitted speed signals can be further processed directly in the control unit.
Ein weiteres bevorzugtes Ausführungsbeispiel der hydraulischen Fördereinrichtung ist dadurch gekennzeichnet, dass die Pumpe in einer Steuerplattenanordnung angeordnet ist, die zwischen dem Steuergehäusekörper und dem Elektromotor angeordnet ist. In der Steuerplattenanordnung können auch mehrere Pumpen angeordnet sein. Vorzugsweise sind mehrere Steuerplatten zwischen dem Steuergehäusekörper und dem Elektromotor angeordnet. Vorzugsweise ist in jeder Steuerplatte eine Pumpe angeordnet. Besonders bevorzugt sind zwischen dem Steuergehäusekörper und dem Elektromotor zwei Steuerplatten mit jeweils einer Pumpe angeordnet. Another preferred embodiment of the hydraulic conveyor is characterized in that the pump is arranged in a control plate assembly which is arranged between the control housing body and the electric motor. In the control plate assembly and a plurality of pumps can be arranged. Preferably, a plurality of control plates between the control housing body and the electric motor are arranged. Preferably, a pump is arranged in each control plate. Particularly preferably, two control plates are each arranged with a pump between the control housing body and the electric motor.
Ein weiteres bevorzugtes Ausführungsbeispiel der hydraulischen Fördereinrichtung ist dadurch gekennzeichnet, dass der Elektromotor an die Steuerplattenanordnung angebaut ist. Der Elektromotor ist zum Beispiel an die Steuerplattenanordnung angeschraubt. Another preferred embodiment of the hydraulic conveyor is characterized in that the electric motor is mounted on the control plate assembly. The electric motor is bolted to the control plate assembly, for example.
Ein weiteres bevorzugtes Ausführungsbeispiel der hydraulischen Fördereinrichtung ist dadurch gekennzeichnet, dass mindestens ein Zahn eines Pumpenzahnrads das passive Erfassungselement darstellt. Die Sensierung, insbesondere Drehzahlsensierung, über die Zähne des Pumpenzahnrads liefert den Vorteil, dass kein zusätzliches passives Erfassungselement benötigt wird. Die Erfindung betrifft des Weiteren ein elektrohydraulisches Steuerungsmodul mit einer vorab beschriebenen hydraulischen Fördereinrichtung. Das elektrohydraulische Steuerungsmodul dient vorzugsweise zum Steuern eines Fahrzeuggetriebes. Die hydraulische Fördereinrichtung dient zur Erzeugung eines hydraulischen Volumenstroms für verschiedene Aufgaben in der hydraulischen Steuerung des Fahrzeuggetriebes. Durch die Drehzahlsensierung mit den erfindungsgemäß angeordneten Drehzahlerfassungselementen kann die Funktion der hydraulischen Steuerung optimiert werden. Another preferred embodiment of the hydraulic conveyor is characterized in that at least one tooth of a pump gear is the passive detection element. Sensing, especially speed sensing, across the teeth of the pump gear provides the advantage that no additional passive sensing element is needed. The invention further relates to an electro-hydraulic control module with a hydraulic conveyor described above. The electro-hydraulic control module is preferably used to control a vehicle transmission. The hydraulic conveyor serves to generate a hydraulic volume flow for various tasks in the hydraulic control of the vehicle transmission. By the speed sensing with the inventively arranged speed detection elements, the function of the hydraulic control can be optimized.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein Ausführungsbeispiel im Einzelnen beschrieben ist. Es zeigen: Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, an embodiment is described in detail. Show it:
Figur 1 ein elektrohydraulisches Steuerungsmodul mit einer erfindungsgemäßen hydraulischen Fördereinrichtung im Schnitt und 1 shows an electro-hydraulic control module with a hydraulic conveyor according to the invention in section and
Figur 2 einen Ausschnitt einer Pumpe der hydraulischen Fördereinrichtung aus Figur 1 im Schnitt. Figure 2 shows a detail of a pump of the hydraulic conveyor of Figure 1 in section.
In Figur 1 ist ein elektrohydraulisches Steuerungsmodul 1 mit einer hydraulischen Fördereinrichtung 4 gemäß einem Ausführungsbeispiel der Erfindung im Schnitt dargestellt. Die hydraulische Fördereinrichtung 4 umfasst eine erste Pumpe 6 und eine zweite Pumpe 8. Die beiden Pumpen 6, 8 sind durch einen Elektromotor 10 angetrieben. Der Elektromotor 10 ist über e- lektrische Anschlusskabel 11 , 12 an eine elektrische Energieversorgung angeschlossen. In Figure 1, an electro-hydraulic control module 1 with a hydraulic conveyor 4 according to an embodiment of the invention is shown in section. The hydraulic conveying device 4 comprises a first pump 6 and a second pump 8. The two pumps 6, 8 are driven by an electric motor 10. The electric motor 10 is connected via e- lectric connection cable 11, 12 to an electrical power supply.
Das Steuerungsmodul 1 beziehungsweise die Fördereinrichtung 4 umfasst des Weiteren ein Steuergerät 15 mit einem Steuergehäusekörper 16. Zwischen dem Steuergehäusekörper 16 und dem Elektromotor 10 ist eine Steuerplattenanordnung 20 mit einer ersten Steuerplatte 21 und einer zweiten Steuerplatte 22 angeordnet. Zwischen den beiden Steuerplatten 21 , 22 ist ein Zwischenblech 23 angeordnet. Der Elektromotor 10 ist mit Hilfe von Schrauben 25 an der in Figur 1 oberen Steuerplatte 21 der Steuerplattenanordnung 20 befestigt. The control module 1 or the conveyor 4 further comprises a control unit 15 with a control housing body 16. Between the control housing body 16 and the electric motor 10, a control plate assembly 20 having a first control plate 21 and a second control plate 22 is arranged. Between the two control plates 21, 22 an intermediate plate 23 is arranged. The electric motor 10 is fastened by means of screws 25 to the upper control plate 21 of the control plate assembly 20 in FIG.
Die erste Pumpe 6 ist in die erste Steuerplatte 21 integriert. Die zweite Pumpe 8 ist in die zweite Steuerplatte 22 integriert. Die beiden Pumpen 6, 8 sind beide als Außenzahnradpum- pen ausgeführt und durch eine Motorwelle 28 des Elektromotors 10 angetrieben. Das freie Ende der Motorwelle 28 ist über eine Kupplung 29 mit einer gemeinsamen Pumpenwelle 30 der beiden Pumpen 6, 8 gekoppelt. The first pump 6 is integrated in the first control plate 21. The second pump 8 is integrated in the second control plate 22. The two pumps 6, 8 are both designed as external gear pumps and driven by a motor shaft 28 of the electric motor 10. The free End of the motor shaft 28 is coupled via a coupling 29 with a common pump shaft 30 of the two pumps 6, 8.
Die Kupplung 29 verbindet das freie Ende der Motorwelle 28 drehfest mit einem in Figur 1 o- beren Ende der Pumpenwelle 30. Die Motorwelle 28 und die Pumpenwelle 30 haben eine gemeinsame Drehachse 33, die sich in Figur 1 in vertikaler Richtung erstreckt. Ein in Figur 1 unteres Ende der gemeinsamen Pumpenwelle 30 ist über eine weitere Kupplung 34 mit einem Pumpenzahnrad 35 der zweiten Pumpe 8 koppelbar beziehungsweise gekoppelt. Ein Pumpenzahnrad der ersten Pumpe 6 ist permanent drehfest mit der gemeinsamen Pumpenwelle 30 verbunden. The coupling 29 connects the free end of the motor shaft 28 in a rotationally fixed manner with an end of the pump shaft 30 which is open in FIG. 1. The motor shaft 28 and the pump shaft 30 have a common axis of rotation 33 which extends in the vertical direction in FIG. A lower end in FIG. 1 of the common pump shaft 30 can be coupled or coupled via a further clutch 34 to a pump gear 35 of the second pump 8. A pump gear of the first pump 6 is permanently connected in a rotationally fixed manner to the common pump shaft 30.
Die zweite Pumpe 8 umfasst einen Pumpendeckel 38, der die in Figur 1 nach unten offene zweite Steuerplatte 22 verschließt. Der Pumpendeckel 38 umfasst unterhalb der Kupplung 34 der zweiten Pumpe 8 eine Vertiefung, in welcher ein passives Drehzahlerfassungselement 41 frei drehbar angeordnet ist. Das passive Drehzahlerfassungselement 41 ist drehfest mit dem in Figur 1 unteren Ende der gemeinsamen Pumpenwelle 30 verbunden. The second pump 8 comprises a pump cover 38 which closes the second control plate 22, which is open at the bottom in FIG. The pump cover 38 includes below the coupling 34 of the second pump 8 has a recess in which a passive speed detection element 41 is arranged freely rotatable. The passive speed detection element 41 is rotatably connected to the lower end in FIG. 1 of the common pump shaft 30.
Das passive Drehzahlerfassungselement 41 ist vorzugsweise als Magnet ausgeführt und fest mit dem in Figur 1 unteren Ende der gemeinsamen Pumpenwelle 30 verbunden. Das passive Drehzahlerfassungselement 41 wirkt elektromagnetisch mit einem aktiven Drehzahlelement 42 zusammen, das in Figur 1 durch ein Rechteck angedeutet ist. Das aktive Drehzahlerfassungselement 42 ist durch eine relativ dünne Gehäusewand des Steuergehäusekörpers 16 und durch eine weitere relativ dünne Gehäusewand des Pumpendeckels 38 von dem passiven Drehzahlerfassungselement 41 getrennt. The passive speed detection element 41 is preferably designed as a magnet and fixedly connected to the lower end in FIG. 1 of the common pump shaft 30. The passive speed detection element 41 interacts electromagnetically with an active speed element 42, which is indicated in Figure 1 by a rectangle. The active speed detection element 42 is separated from the passive speed detection element 41 by a relatively thin housing wall of the control housing body 16 and by another relatively thin housing wall of the pump cover 38.
Die beiden Gehäusewände sind doch so dünn ausgeführt, dass Drehzahlsignale im Betrieb der hydraulischen Fördereinrichtung 4 von dem passiven Drehzahlerfassungselement 41 auf das aktive Drehzahlerfassungselement 42 übertragen werden. Die beiden Drehzahlerfassungselemente 41 , 42 stellen gemeinsam eine Drehzahlsensoreinrichtung 40 dar, mit der auf einfache Art und Weise die Drehzahl der gemeinsamen Pumpenwelle 30 und somit die Drehzahl der Motorwelle 28 des Elektromotors 10 erfasst werden kann. Die erfassten Drehzahlsignale können in dem Steuergerät 15 direkt weiter verarbeitet werden. The two housing walls are designed so thin that speed signals during operation of the hydraulic conveyor 4 are transmitted from the passive speed detection element 41 to the active speed detection element 42. The two speed detection elements 41, 42 together represent a speed sensor device 40, with which the speed of the common pump shaft 30 and thus the speed of the motor shaft 28 of the electric motor 10 can be detected in a simple manner. The detected speed signals can be further processed directly in the control unit 15.
In Figur 2 sieht man, dass das Pumpenzahnrad 35 der zweiten Pumpe 8 als Außenzahnrad mit einer Außenverzahnung 54 ausgeführt ist. Das Außenzahnrad 35 kämmt mit einem weite- ren Außenzahnrad 55, um als Außenzahnradpumpe Hydraulikmedium zu fördern. Beim Einsatz eines entsprechend geeigneten aktiven Drehzahlerfassungselements kann die Drehzahl- sensierung auch über die Zähne der Pumpenzahnräder 35, 55 erfolgen. In diesem Fall wird das passive Drehzahlerfassungselement von mindestens einem Zahn oder allen Zähnen mindestens eines Außenzahnrads der Außenzahnradpumpe dargestellt. Dann kann ein zusätzliches passives Sensorerfassungselement entfallen. FIG. 2 shows that the pump gear 35 of the second pump 8 is designed as an external gear with external toothing 54. The outer gear 35 meshes with a wide ren outer gear 55 to promote as external gear pump hydraulic medium. When using a correspondingly suitable active speed detection element, the speed sensing can also take place via the teeth of the pump gears 35, 55. In this case, the passive speed detection element is represented by at least one tooth or all teeth of at least one external gear of the external gear pump. Then, an additional passive sensor detection element can be omitted.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
I elektrohydraulisches Steuerungsmodul I electrohydraulic control module
4 hydraulische Fördereinrichtung 4 hydraulic conveyor
6 erste Pumpe 6 first pump
8 zweite Pumpe 8 second pump
10 Elektromotor 10 electric motor
I I elektrisches Anschlusskabel I I electrical connection cable
12 elektrisches Anschlusskabel 12 electrical connection cable
15 Steuergerät 15 control unit
16 Steuergehäusekörper 16 control housing body
20 Steuerplattenanordnung 20 control plate assembly
21 Steuerplatte 21 control plate
22 Steuerplatte 22 control plate
23 Zwischenblech 23 intermediate sheet
25 Schraube 25 screw
28 Motorwelle 28 motor shaft
29 Kupplung 29 clutch
30 Pumpenwelle 30 pump shaft
33 gemeinsame Drehachse 33 common axis of rotation
34 Kupplung 34 clutch
35 Pumpenzahnrad 35 pump gear
38 Pumpendeckel 38 pump covers
40 Drehzahlsensoreinrichtung 40 speed sensor device
41 passives Drehzahlerfassungselement 41 passive speed detection element
42 aktives Drehzahlerfassungselement 42 active speed detection element
54 Außenverzahnung 54 external toothing
55 Außenzahnrad 55 external gear
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010018938 | 2010-04-30 | ||
| DE102010034807 | 2010-08-19 | ||
| PCT/DE2011/000405 WO2011134449A2 (en) | 2010-04-30 | 2011-04-14 | Hydraulic transport device and electrohydraulic control module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2564068A2 true EP2564068A2 (en) | 2013-03-06 |
Family
ID=44786655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11729358A Ceased EP2564068A2 (en) | 2010-04-30 | 2011-04-14 | Hydraulic transport device and electrohydraulic control module |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20130064699A1 (en) |
| EP (1) | EP2564068A2 (en) |
| JP (1) | JP5901613B2 (en) |
| DE (2) | DE112011101506A5 (en) |
| WO (1) | WO2011134449A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015201411A1 (en) | 2015-01-28 | 2016-07-28 | Robert Bosch Gmbh | Motor-pump unit for a brake system |
| IL244096A0 (en) * | 2015-08-09 | 2016-07-31 | Israel Aerospace Industries Ltd | Grip for moving an article |
| KR20220159552A (en) * | 2021-05-25 | 2022-12-05 | 현대모비스 주식회사 | Pump Housing Layout for Brake System |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3430574A (en) * | 1967-05-17 | 1969-03-04 | Webster Electric Co Inc | Plural rotary hydraulic apparatus |
| DE8703108U1 (en) * | 1987-02-28 | 1988-03-31 | Leybold AG, 5000 Köln | Vacuum pump with a device for measuring speed |
| US4924180A (en) * | 1987-12-18 | 1990-05-08 | Liquiflo Equipment Company | Apparatus for detecting bearing shaft wear utilizing rotatable magnet means |
| DE4031476A1 (en) * | 1989-04-14 | 1992-04-09 | Kracht Gmbh | Hydraulic control circuit for synchronising two hydromachines - has by=pass valves in parallel with machines, enables machine of equal displacement to be used |
| US5244367A (en) * | 1990-11-30 | 1993-09-14 | Aeroquip Corporation | Gear pump with a resilient means for biasing a side wear plate |
| DE4303479C2 (en) * | 1993-02-06 | 1998-05-20 | Fhp Motors Gmbh | Pump unit with a variable speed electric motor |
| CA2107523C (en) * | 1993-10-01 | 2004-05-04 | Gary D. Langeman | Plural component delivery system |
| EP0722044B1 (en) * | 1995-01-11 | 2002-05-15 | Micropump Incorporated | Integral pump and flow meter device |
| EP0769621A1 (en) * | 1995-09-26 | 1997-04-23 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Micropump and micromotor |
| DE10006320A1 (en) | 2000-02-12 | 2001-08-23 | Daimler Chrysler Ag | Electric drive unit consisting of an electric motor and electronic module |
| WO2002060734A1 (en) * | 2001-02-02 | 2002-08-08 | Continental Teves Ag & Co. Ohg | Unit for an electronically regulated braking system |
| US6759969B2 (en) * | 2001-06-01 | 2004-07-06 | Tuthill Corporation | Fiberoptic transceiver system |
| US6712585B2 (en) * | 2001-09-19 | 2004-03-30 | Viking Pump, Inc. | Magnetic pump |
| US6547531B1 (en) * | 2002-01-16 | 2003-04-15 | Terry L. Cumbo | Variable-displacement axial piston pump |
| US7086225B2 (en) * | 2004-02-11 | 2006-08-08 | Haldex Hydraulics Corporation | Control valve supply for rotary hydraulic machine |
| JP4654658B2 (en) * | 2004-10-28 | 2011-03-23 | 株式会社アドヴィックス | Rotary pump for brake equipment |
| US7851775B2 (en) * | 2005-09-29 | 2010-12-14 | The United States Of America As Represented By The Secretary Of The Army | Gear-type drink-o-meter to monitor fluid consumption |
| DE102008053316A1 (en) * | 2008-10-27 | 2010-04-29 | Robert Bosch Gmbh | gear machine |
-
2011
- 2011-04-14 DE DE112011101506T patent/DE112011101506A5/en not_active Withdrawn
- 2011-04-14 DE DE102011017011A patent/DE102011017011A1/en not_active Withdrawn
- 2011-04-14 JP JP2013506487A patent/JP5901613B2/en not_active Expired - Fee Related
- 2011-04-14 WO PCT/DE2011/000405 patent/WO2011134449A2/en not_active Ceased
- 2011-04-14 EP EP11729358A patent/EP2564068A2/en not_active Ceased
-
2012
- 2012-10-30 US US13/664,036 patent/US20130064699A1/en not_active Abandoned
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2011134449A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5901613B2 (en) | 2016-04-13 |
| DE112011101506A5 (en) | 2013-04-11 |
| US20130064699A1 (en) | 2013-03-14 |
| WO2011134449A2 (en) | 2011-11-03 |
| WO2011134449A3 (en) | 2012-11-29 |
| JP2013525679A (en) | 2013-06-20 |
| DE102011017011A1 (en) | 2011-11-03 |
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