EP1476647A1 - Throttle housing comprising a modular cover element - Google Patents

Throttle housing comprising a modular cover element

Info

Publication number
EP1476647A1
EP1476647A1 EP02790260A EP02790260A EP1476647A1 EP 1476647 A1 EP1476647 A1 EP 1476647A1 EP 02790260 A EP02790260 A EP 02790260A EP 02790260 A EP02790260 A EP 02790260A EP 1476647 A1 EP1476647 A1 EP 1476647A1
Authority
EP
European Patent Office
Prior art keywords
cover element
sensor module
sensor
throttle device
throttle valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02790260A
Other languages
German (de)
French (fr)
Other versions
EP1476647B1 (en
Inventor
Stefan Josten
Markus Michels
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1476647A1 publication Critical patent/EP1476647A1/en
Application granted granted Critical
Publication of EP1476647B1 publication Critical patent/EP1476647B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/104—Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0294—Throttle control device with provisions for actuating electric or electronic sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0404—Throttle position

Definitions

  • throttle valves are used to control the intake air flow supplied to the combustion engine.
  • Sensor systems are used to record the throttle position.
  • a rotational angular position of the throttle valve detecting the rotation angle sensor is integrated in a plug board, which is installed directly in the "gear housing of the throttle valve unit.
  • the throttle valve actuating unit comprises a throttle valve which is rotatably mounted on a throttle valve shaft in a throttle valve neck. This can be moved with a servomotor which is assigned to the throttle valve shaft and is mounted on the throttle valve neck, said servomotor having at least one grinder and at least one potentiometer bar for detecting a setting position of the throttle valve shaft with an electrical connection.
  • the servomotor and the potentiometer are connected to the electrical connection in a connection space; the terminal compartment is also surrounded by a closing cover.
  • the at least one potentiometer track is attached to a cover, a coupling part belonging to the electrical connection being formed on the cover.
  • At least one motor plug contact is provided on the cover, which is in electrical contact with a motor mating plug contact connected to the servomotor when the cover is mounted on the throttle valve connector.
  • the electromotive actuator comprises a housing and an electric motor arranged on the drive side within the housing.
  • a movable element, in particular a throttle valve, arranged in the housing is driven by means of the electric motor, a separate electronics housing for receiving control or evaluation electronics being attachable to the housing.
  • the drive side of the electromotive actuator is connected to the electronics housing via electrical connection means, the electrical connection sheaths being in particular a component of the electronics housing.
  • the throttle valve housing comprises a plug or a socket which is complementary to the connection of the electrical connection means.
  • the throttle device which can be installed in the intake duct of an internal combustion engine.
  • the throttle device consists of a housing, a throttle valve control, a position sensor, and a throttle valve attached to a throttle valve shaft, the throttle device being arranged between the air filter connection on the clean air side and the intake system of the internal combustion engine.
  • the air filter connection and / or the suction system consist of a plastic, the individual elements of the throttle device being modular and being connected to one another by means of plug-in, screw or clamping connections.
  • Housing and / or the throttle valve can be made of plastic, the throttle valve shaft being constructed in two parts and the module for the bearing sensor on one shaft half and the module for the throttle valve adjustment unit on the other shaft half.
  • the control unit, control sensor and throttle valve with throttle valve shaft form a common unit, whereby the housing can be integrated in the air filter connection piece or the intake system connection.
  • the solution proposed according to the invention is characterized above all by the fact that different sensor systems can be integrated into the modular cover element.
  • the fact that various sensor systems can be used in the future to detect the angular position of the throttle unit in the intake tract of an internal combustion engine can thus be taken into account.
  • the variance with regard to the sensor systems used is limited to the sensor module, which means that a more cost-effective solution can be achieved.
  • the functions of “fixing the cover” and “positioning the sensor relative to the throttle valve shaft” can be separated. This significantly simplifies the structure of the sensors used. Particularly when using non-contact systems, such as Hall sensors, a very exact positioning of the sensor element is required to achieve high accuracy with regard to the detection of the angular position of the throttle valve. This exact positioning of a contactlessly operating sensor element cannot be achieved during the relative movement of a cover element, in which a sensor element is integrated, when it is mounted on the gear housing, since the tolerances and the dimensions of the components to be added are too large.
  • the proposed solution allows a sensor module to be integrated in the modular cover element to be positioned relative to the throttle valve shaft, for example, regardless of the position in which the modular cover element is accommodated on the transmission housing of a throttle valve unit. This is also advantageous in relation to the tolerance chain that arises between a moving component, a throttle valve shaft and the sensor element, from which the cover element now falls out with the solution proposed according to the invention.
  • the sensor modules in which the connectors provided by the customer can already be integrated, are inserted into the corresponding openings of the modular cover element and aligned relative to moving parts, such as the throttle valve shaft of the throttle valve.
  • the sensor modules containing the customer connector also have the advantage that no additional connection points are required between the connector and the sensor, which considerably reduces the failure probability of the throttle unit on the intake tract of the internal combustion engine.
  • the sensor module which can be mounted with the modular cover element in the vicinity of the receiving area of the actuator, also ensures the contacting of the servomotor of the throttle valve unit in a simple manner.
  • FIG. 1 shows an assembled throttle valve housing
  • FIG. 2 shows the modular cover element of the throttle valve housing with the sensor module accommodated in this way in a perspective front view
  • FIG. 3 a top view of the cover element and gear housing
  • FIG. 4 shows the front view of the sensor module attached to the cover element and embedded therein
  • FIG. 1 shows a modified throttle valve housing with a sensor module, which is integrated in a modular cover element.
  • a throttle unit for regulating an air mass flow in the intake tract of an internal combustion engine comprises an intake line flange 1.
  • a throttle valve element which controls the air mass flow passing through the intake cross section 2, is accommodated within the intake line flange 1 by means of an actuator (not shown here).
  • Fastening elements 3 are provided on the outside of the intake line flange 1.
  • An actuator actuating the throttle valve accommodated in the intake cross section 2 is arranged in a receptacle 4 between a transmission housing 7 and a modular cover element 8.
  • the gear housing 7 and a modular cover element 8 are connected via fastening elements such as e.g. the Phillips screws shown in Figure 1, screwed together.
  • a flange wall 5 of the intake line flange 1 comprises a connection point 6, which can be designed, for example, as ribbing or as a thread partially executed on the peripheral surface of the flange wall 5.
  • the intake line flange 1 of the throttle unit can be connected to the connections of the intake duct.
  • a sensor module 9 is embedded in the modular cover element 8, the flat surface 12 of which rests on the front of the modular cover element 8.
  • the sensor module 9 comprises a connection 10, which delimits a connection opening 11, which is designed in steps in the illustration according to FIG. 1.
  • Individual tabs can be formed on the inside as well as on the outside of the connection 10 in order to ensure that a plug element (not shown in FIG. 1) is inserted in the correct direction.
  • FIG. 2 shows the perspective view of the cover element of the throttling dapper unit with the sensor module attached to it.
  • cover element 8 which has a border surrounding the gear housing 7, a plurality of openings 13, 14 and 15 are provided.
  • connecting elements in the form of Phillips screws see illustration in accordance with FIG. 1
  • slotted screws, bolts or other fastening elements can be used, with which the gear housing 7 and the cover element 8 overlapping this laterally on the intake line flange 1 of the Have the throttle unit fixed.
  • the transmission housing 7 can also be fastened with the modular cover element 8 which overlaps it by means of snap locks or circumferential catches.
  • both the gear housing 7 and the modular cover element 8 spanning this are manufactured as plastic injection molded components.
  • the openings 13, 14 and 15 can be made with a circular cross-section and also snap-on openings or snap-on projections, with which the components shown in FIG. 1 or FIG. 2 are injected Throttle unit can be joined together.
  • FIG. 2 shows in particular that the connector 10 on the sensor module 9 comprises a connector tab 22 on the inside as well as a connector tab 21 on the outside of the connector turn.
  • These plug tabs 21 and 22 formed on the connection walls prevent improper insertion of a plug element, not shown here, into the opening 11 of the connection 10 of the sensor module 9.
  • the flat surface 12 of the sensor module 9 is flat and lies on a flat surface parallel to this on the top of the modular cover element 8.
  • FIG. 3 shows a perspective top view of a cover element and a gear housing connected to it.
  • the area of the modular cover element 8, which contains the actuator necessary for actuating a throttle unit, is identified in FIG. 3 by reference number 4.
  • a rib 17 is injection molded in the gear housing 7, which serves as a stiffening of the bearing of the actuator.
  • the border formed on the cover element 8 covers a circumferential web 27 on the gear housing 7, which is not visible in FIG. 3.
  • a circular opening 18 is recessed in the gear housing 7. The circular opening 18 functions as a bearing point for an end of the throttle valve shaft, not shown in FIG. 3, at which the throttle valve is received.
  • the rotational position of the throttle valve is detected by means of the sensor module 9.
  • the sensor module 9 can comprise a sensor having a potentiometer or a contactlessly working sensor, such as a Hall sensor.
  • the first opening in the cover element 8 and in the transmission housing 7 is designated by reference numeral 13, while the respective second and third openings in the transmission housing 7 and in the modularly constructed cover element 8 are designated by reference symbols 14 and 15.
  • reference numeral 20 denotes a step 20 formed in the connector 10 sensor module 9, which prevents an improper insertion of a plug element into the opening of the connector 10.
  • the representation according to FIG. 4 shows the front view of the sensor module attached to the cover element.
  • the sensor element 9 lies with its flat surface 12 on a flat surface parallel to this.
  • the cover element 8 comprises a border 30, which overlaps a circumferential web 27 formed on the gear housing 7.
  • the border 30 extends, completely covering the circumferential web 27 of the transmission housing 7, on the cover element 8.
  • the connection 10, which delimits the opening 11, is provided on its wall 16 with the already mentioned outside plug tab 21.
  • Reference symbols 13, 14 and 15 denote the first opening, the second opening and the third opening, respectively, on the modular cover element 8.
  • FIG. 5 shows an exploded view of the throttle unit, comprising the gear housing, the cover element and the sensor module.
  • a circumferential web 27 is arranged on the gear housing 7.
  • bearing elements configured in a U-shape, which are used to hold an actuator (not shown, for example, electrically designed).
  • an opening 18 is formed in the gear housing 7, on which an annular web is formed.
  • the throttle valve shaft, not shown, on which the throttle valve is formed, is rotatably received in the opening 18.
  • the receptacle 4 for the actuator is injection molded onto the cover element 8.
  • adjusting wheel receptacle 28 Opposite the adjusting wheel receptacle 28 is a semicircular curvature on the front of the modular cover element 8, which covers the adjusting wheel let into the adjusting wheel receptacle 28.
  • a cover opening 29 is provided which is delimited by an edge 34.
  • Reference numeral 13 denotes the position of the first opening in the modular cover element 8, the circumferential border 30 on the modular cover element 8 is dimensioned such that it covers the circumferential web 27 on the bottom of the gear housing 7.
  • the sensor module 9 includes the already mentioned plane surface 12 and a sensor module body 32, the side surfaces 33 of which lie against the lid opening edge 34 of the opening 29. The course of the lid opening edge 34 of the lid opening 29 ensures that the sensor module 9 is in the correct installation position in FIG the modular cover element 8 is inserted.
  • At least one connector tab 31 is formed on the sensor module 9. In the embodiment variant of the sensor module 9 as shown in FIG. 5, two connector lugs 31 oriented one above the other are provided on the sensor module body 32.
  • the connector lugs 31 on the sensor module body 32 are inserted into connector receptacles 24 which are provided on the bottom of the transmission housing 7.
  • the connector receptacles 24 are configured, for example, as T-slots 25. The sensor module 9 can therefore be used to contact the actuator which is accommodated in the bearing points 23 and enclosed by the receptacle 4 of the modular cover element 8.
  • the injection molded component which is designed as a modular cover element 8 and is to be joined with the gear housing 7, allows the fixing of the gear housing 7 and the sensor module 9 to be separated and the orientation of the sensor module 9 relative to the position of the component whose rotational position is to be recorded - here the rotational position of a throttle valve shaft.
  • the modular cover element 8 is connected to the gear housing 7. This can be done by latching the circumferential web 27 with the border 30 of the cover element 8, which is designed in a corresponding oversize.
  • fastening elements such as screws, inserted through the openings 13, 14, 15 (see illustration according to FIG. 1) or bolt, the unit made from the gearbox housing 7 modular cover element 8 can be • attached to the side of the intake pipe flange 1.
  • the sensor module 9 is finally introduced into the opening 29 and aligned accordingly with the opening 18 in the bottom of the gear housing 7.
  • a simple adjustment of the sensor module 9 can thus be carried out independently of the position of the modular cover element 8 on the gear housing 7.
  • the alignment takes place only on the sensor module 9, which is to be inserted into the top of the modular cover element 8.
  • the sensor module 9 takes over both the contacting of the actuator via the plug lugs 31 to be inserted into the connector receptacles 24 and the connection of the sensor elements. Alignment of the sensor module 9 independently of the installation system of the cover element 8 is of crucial importance, in particular in the case of contactlessly operating sensor systems, in order to achieve high measurement accuracy.
  • the modular cover element 8, preferably procured as a plastic injection molded component, can be manufactured in large numbers in one embodiment variant, while the variance remains limited to the sensor module and thus allows a throttle valve unit to be produced more cost-effectively.
  • the sensor module 9 can be equipped with non-contact rotation angle sensors, for example as Hall sensors. If Hall sensors are used as non-contact rotation angle sensors, very exact positioning of the sensor module 9 is required. This exact sensor positioning can be realized with the solution proposed according to the invention regardless of the installation position of the cover element, since alignment of the sensor module 9 relative to the modular cover element 8 manufactured as a standard series component is possible without any problems.
  • the sensor modules 9 shown can already be provided with customer plugs, so that no connection points between the plug and the sensor elements used are required in a particularly advantageous manner. This in turn leads to a reduction in the likelihood of failure due to the breaking of connection points due to inevitable vibrations in the engine compartment of a motor vehicle.
  • the stage 20 at the connector 10 can be seen in the sensor module 9 according to FIG. 5, which prevents a faulty insertion of a plug element.
  • the outside tab 21 can be clearly seen.
  • the sensor module 9 advantageously allows a simultaneous connection of the actuator protected by the modular cover element 8 to actuate a throttle valve, as well as the contacting of the sensor element for detecting the rotational position of this component of a throttle unit. LIST OF REFERENCE NUMBERS

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

The invention relates to a throttle device for installing in the intake tract of an internal combustion engine. The throttle device comprises a drive housing (7) for receiving an adjusting drive that actuates a throttle valve. A cover element (8) can be mounted on the drive housing (7). The cover element (8) is configured in a modular manner and comprises an opening (29) for receiving a sensor module (9), which can be positioned in relation to a mounting location (18) independently of the assembled position of the cover element (8) on the drive housing (7).

Description

Drosselgehäuse mit modularem DeckelelementThrottle body with modular cover element
Technisches GebietTechnical field
Im Ansaugtrakt von Verbreimungskraftmaschinen werden Drosselklappen eingesetzt, mit denen der der Verbrermimgskraftmaschine zugeführte Ansaugluftstrom gesteuert wird. Zur Erfassung der Drosselldappenstellung kommen Sensorsysteme zum Einsatz. Ein die Drehwinkellage der Drosselklappe erfassender Drehwinkelsensor ist in eine Steckerplatte integriert, die direkt in das' Getriebegehäuse der Drosselklappeneinheit eingebaut wird.In the intake tract of crimping engines, throttle valves are used to control the intake air flow supplied to the combustion engine. Sensor systems are used to record the throttle position. A rotational angular position of the throttle valve detecting the rotation angle sensor is integrated in a plug board, which is installed directly in the "gear housing of the throttle valve unit.
Stand der TechnikState of the art
DE 195 25 510 AI hat eine Drosselldappenstelleinheit zum Gegenstand. Die Drosselklap- penstelleinheit umfasst eine an einer in einem Drosselklappenstutzendrehbar gelagerten Drosselklappenwelle aufgenomme Drosselklappe. Diese ist mit einem der Drosselklappenwelle zugeordneten, am Drosselklappenstutzen gelagerten Stellmotor bewegbar, wobei diese mindestens einen Schleifer sowie mindestens eine Potentiometerbalm zum Erfassen einer Stellposition der Drosselklappenwelle mit einem elektrischen Anschluss aufweist. An dem elektrischen Anschluss ist in einem Anschlussraum der Stellmotor und das Potentiometer angeschlossen; ferner ist der Anschlussraum von einem abschließenden Deckel umgeben. Die mindestens eine Potentiometerbahn ist an einem Deckel angebracht, wobei am Deckel ein zum elektrischer Anschluss gehörendes Kupplungsteil angeformt ist. Am Dek- kel ist mindestens ein Motorsteckkontakt vorgesehen, der bei an den Drosselklappenstutzen anmontiertem Deckel in elektrischem Kontakt mit einem mit dem Stellmotor verbundenen Motorgegensteckkontakt steht.DE 195 25 510 AI has a Drosselldappenstelleunit the subject. The throttle valve actuating unit comprises a throttle valve which is rotatably mounted on a throttle valve shaft in a throttle valve neck. This can be moved with a servomotor which is assigned to the throttle valve shaft and is mounted on the throttle valve neck, said servomotor having at least one grinder and at least one potentiometer bar for detecting a setting position of the throttle valve shaft with an electrical connection. The servomotor and the potentiometer are connected to the electrical connection in a connection space; the terminal compartment is also surrounded by a closing cover. The at least one potentiometer track is attached to a cover, a coupling part belonging to the electrical connection being formed on the cover. At least one motor plug contact is provided on the cover, which is in electrical contact with a motor mating plug contact connected to the servomotor when the cover is mounted on the throttle valve connector.
DE 198 43 771 AI hat ein elektromotorisches Stellglied, insbesondere zum Einsatz an einer Drosselvorrichtung einer Verbrer imgskraftmaschine zum Gegenstand. Das elektromotorische Stellglied umfasst ein Gehäuse und einen auf einer Antriebsseite innerhalb des Gehäuses angeordneten Elektromotor. Mittels des Elektromotors wird ein in dem Gehäuse angeordnetes bewegliches Element, insbesondere eine Drosselklappe, angetrieben, wobei an dem Gehäuse ein separates- Elektronikgehäuse zur Aufnahme einer SteuerVoder Auswerteelektronik befestigbar ist. Die Antriebsseite des elektromotorischen Stellgliedes ist über elektrische Verbindungs- mittel mit dem Elektronikgehäuse verbunden, wobei die elektrischen Verbindungsmäntel insbesondere Bestandteil des Elektronikgehäuses sind. Das Drosselklappengehäuse umfasst einen Stecker oder eine Buchse, die zu dem Anschluss des elektrischen Verbindungsmittels komplementär ausgebildet ist.DE 198 43 771 AI has an electromotive actuator, in particular for use on a throttle device of a combustion engine as the subject. The electromotive actuator comprises a housing and an electric motor arranged on the drive side within the housing. A movable element, in particular a throttle valve, arranged in the housing is driven by means of the electric motor, a separate electronics housing for receiving control or evaluation electronics being attachable to the housing. The drive side of the electromotive actuator is connected to the electronics housing via electrical connection means, the electrical connection sheaths being in particular a component of the electronics housing. The throttle valve housing comprises a plug or a socket which is complementary to the connection of the electrical connection means.
DE 43 29 522 AI offenbart eine Drosseleinrichtung, welche im Ansaugkanal einer Brenn- l xaftmaschine eingebaut werden kann. Die Drosseleinrichtung besteht aus einem Gehäuse, einer Drosselklappenansteuerung, einem Stellungssensor, einer an einer Drosselklappenwelle befestigten Drosselklappe, wobei die Drosseleinrichtung zwischen dem reinluftseiti- gen Luftanfilteranschluss und der Sauganlage der Brennkraftmaschine angeordnet ist. Der Luftfilteranschluss und/oder die Sauganlage bestehen aus einem Kunststoff, wobei die einzelnen Elemente der Drosseleinrichtung modular aufgebaut sind und über Steck-,Schraub- oder Spannverbindungen miteinander gefügt sind. Gehäuse und/oder die Drosselklappe können aus Kunststoff bestehen, wobei die Drosselklappenwelle zweiteilig aufgebaut ist und auf einer Wellenhälfte das Modul für den Lagersensor und auf der anderen Wellen- hälfte das Modul für die Drosselklappenverstelleinheit angeordnet sein kann. Stelleinheit, Stellsensor und Drosselklappe mit Drosselklappenwelle bilden eine gemeinsame Einheit, wobei das Gehäuse in den Luftfilteranschlussstutzen oder den Sauganlagenanschluss integriert sein kann.DE 43 29 522 AI discloses a throttle device which can be installed in the intake duct of an internal combustion engine. The throttle device consists of a housing, a throttle valve control, a position sensor, and a throttle valve attached to a throttle valve shaft, the throttle device being arranged between the air filter connection on the clean air side and the intake system of the internal combustion engine. The air filter connection and / or the suction system consist of a plastic, the individual elements of the throttle device being modular and being connected to one another by means of plug-in, screw or clamping connections. Housing and / or the throttle valve can be made of plastic, the throttle valve shaft being constructed in two parts and the module for the bearing sensor on one shaft half and the module for the throttle valve adjustment unit on the other shaft half. The control unit, control sensor and throttle valve with throttle valve shaft form a common unit, whereby the housing can be integrated in the air filter connection piece or the intake system connection.
Darstellung der ErfindungPresentation of the invention
Verglichen mit dem aus dem Stande der Technik bekannten Lösungen, zeichnet sich die erfindungsgemäß vorgeschlage Lösung vor allem dadurch aus, dass in das modulare Dek- kelelement unterschiedliche Sensorsysteme integrierbar sind. Damit kann dem Umstand Rechnung getragen werden, dass in Zukunft verschiedene Sensorsysteme eingesetzt werden können, um die Winkellage der Drosseleinheit im Ansaugtrakt einer Verbrenn ngslσaft- maschine zu detektieren. Damit entfällt das Erfordernis, individuell an die eingesetzten Sensorsysteme angepasste Deckelvarianten vorzuhalten. Die Varianz hinsichtlich der eingesetzten Sensorsysteme wird auf das Sensormodul begrenzt, wodurch eine kostengünsti- gere Lösung erreicht werden kann.Compared to the solutions known from the prior art, the solution proposed according to the invention is characterized above all by the fact that different sensor systems can be integrated into the modular cover element. The fact that various sensor systems can be used in the future to detect the angular position of the throttle unit in the intake tract of an internal combustion engine can thus be taken into account. This eliminates the need to maintain cover variants that are individually adapted to the sensor systems used. The variance with regard to the sensor systems used is limited to the sensor module, which means that a more cost-effective solution can be achieved.
Mit der erfindungsgemäß vorgeschlagenen Lösung lassen sich die Funktionen "Deckel fixieren" und "Positionierung des Sensors relativ zur Drosselklappenwelle" trennen. Dies vereinfacht den Aufbau der zum Einsatz kommenden Sensoren erheblich. Besonders beim Einsatz berührungslos arbeitender Systeme, wie z.B. bei Hall-Sensoren, ist zum Erreichen einer hohen Genauigkeit hinsichtlich der Detektion der Winkellage der Drosselklappe, eine sehr exakte Positionierung des Sensorelementes erforderlich. Diese exakte Positionierung eines berührungslos arbeitenden Sensorelementes lässt sich bei der Relativbewegung eines Deckelelementes, in welchen ein Sensorelement integriert ist, bei dessen Montage am Getriebegehäuse nicht erreichen, da die Toleranzen sowie die Abmessungen der zufügenden Bauteile zu groß sind. Die vorgeschlagene Lösung jedoch gestattet eine Positionierung eines im modular aufgebauten Deckelelement zu integrierenden Sensormoduls relativ zur Drosselklappenwelle beispielsweise, unabhängig von der Position, in der das modulare Deckelelement am Getriebegehäuse einer Drosselklappeneinheit aufgenommen ist. Dies ist weiterhin vorteilhaft in Bezug auf die sich einstellende Toleranzkette zwischen einer bewegten Komponente, die eine Drosselklappenwelle und dem Sensorelement, aus welcher mit der erfindungsgemäß vorgeschlagenen Lösung das Deckelelement nunmehr herausfällt.With the solution proposed according to the invention, the functions of “fixing the cover” and “positioning the sensor relative to the throttle valve shaft” can be separated. This significantly simplifies the structure of the sensors used. Particularly when using non-contact systems, such as Hall sensors, a very exact positioning of the sensor element is required to achieve high accuracy with regard to the detection of the angular position of the throttle valve. This exact positioning of a contactlessly operating sensor element cannot be achieved during the relative movement of a cover element, in which a sensor element is integrated, when it is mounted on the gear housing, since the tolerances and the dimensions of the components to be added are too large. However, the proposed solution allows a sensor module to be integrated in the modular cover element to be positioned relative to the throttle valve shaft, for example, regardless of the position in which the modular cover element is accommodated on the transmission housing of a throttle valve unit. This is also advantageous in relation to the tolerance chain that arises between a moving component, a throttle valve shaft and the sensor element, from which the cover element now falls out with the solution proposed according to the invention.
Die Sensormodule, in denen die kundenseitig vorgesehenen Stecker bereits integriert sein können, werden in die entsprechenden Öffnungen des modularen Deckelelementes eingeführt und relativ zu bewegten Teilen, wie der Drosselklappenwelle der Drosselklappe, ausgerichtet. Die die Kundenstecker enthaltenden Sensormodule weisen ferner den Vorteil auf, das keine zusätzlichen Verbindungsstellen zwischen dem Stecker und dem Sensor benötigt werden, was die Ausfallwahrscheinlichkeit der Drosseleinheit am Ansaugtrakt der Verbrennungskraftmaschine erheblich herabsetzt. Das Sensormodul, welches mit dem modularen Deckelelement in der Nähe des Aufnahmebereiches des Stellantriebes montierbar ist, stellt ferner auf einfache Weise die Kontaktierung des Stellmotors der Drosselklappeneinheit sicher.The sensor modules, in which the connectors provided by the customer can already be integrated, are inserted into the corresponding openings of the modular cover element and aligned relative to moving parts, such as the throttle valve shaft of the throttle valve. The sensor modules containing the customer connector also have the advantage that no additional connection points are required between the connector and the sensor, which considerably reduces the failure probability of the throttle unit on the intake tract of the internal combustion engine. The sensor module, which can be mounted with the modular cover element in the vicinity of the receiving area of the actuator, also ensures the contacting of the servomotor of the throttle valve unit in a simple manner.
Zeichnungdrawing
Anhand der Zeichnung wird die Erfindung nahestehend eingehender beschrieben: Es zeigt:The invention is described in more detail with reference to the drawing: It shows:
Figur 1 ein montiertes Drosselklappengehäuse,FIG. 1 shows an assembled throttle valve housing,
Figur 2 das modulare Deckelelement des Drosselklappengehäuses mit derart auf- genommenem Sensormodul in perspektivischer Vorderansicht,FIG. 2 shows the modular cover element of the throttle valve housing with the sensor module accommodated in this way in a perspective front view,
Figur 3 Deckelelement und Getriebegehäuse in perspektivischer Draufsicht, Figur 4 die Frontansicht des am Deckelelement befestigten und in dieses eingelassenen Sensormoduls undFIG. 3, a top view of the cover element and gear housing, FIG. 4 shows the front view of the sensor module attached to the cover element and embedded therein
Figur 5 eine Explosionsdarstellung vom Getriebegehäuse, Deckelelement und Sensor- modul.5 shows an exploded view of the gear housing, cover element and sensor module.
Ausfuhrungsvariantendesign variants
Figur 1 zeigt ein modifiziertes Drosselklappengehäuse mit einem Sensormodul, welches in ein modulares Deckelelement integriert ist.FIG. 1 shows a modified throttle valve housing with a sensor module, which is integrated in a modular cover element.
Eine Drosseleinheit zur Regelung eines Luftmassenstromes im Ansaugtrakt einer Verbrennungskraftmaschine umfasst einen Ansaugleitungsflansch 1. Innerhalb des Ansaugleitungs- flansches 1 ist ein mittels eines hier nicht dargestellten Stellantriebes bewegbares Drossel- klappenelement aufgenommen, welches den durch den Ansaugquerschnitt 2 hindurchtretenden Luftmassenstrom steuert. An der Außenseite des Ansaugleitungsflansches 1 sind Befestigungselemente 3 vorgesehen. Ein die im Ansaugquerschnitt 2 aufgenommene Drosselklappe betätigender Stellantrieb ist in einer Aufnahme 4 zwischen einem Getriebegehäuse 7 und einem modularem Deckelelement 8 angeordnet. Das Getriebegehäuse 7 und ein modulares Deckelelement 8 sind über Befestigungselemente, wie z.B. die in Figur 1 dargestellten Kreuzschlitzschrauben, miteinander verschraubt.A throttle unit for regulating an air mass flow in the intake tract of an internal combustion engine comprises an intake line flange 1. A throttle valve element, which controls the air mass flow passing through the intake cross section 2, is accommodated within the intake line flange 1 by means of an actuator (not shown here). Fastening elements 3 are provided on the outside of the intake line flange 1. An actuator actuating the throttle valve accommodated in the intake cross section 2 is arranged in a receptacle 4 between a transmission housing 7 and a modular cover element 8. The gear housing 7 and a modular cover element 8 are connected via fastening elements such as e.g. the Phillips screws shown in Figure 1, screwed together.
Eine Flanschwand 5 des Ansaugleitungsflansches 1 umfasst eine Verbindungsstelle 6, die beispielsweise als Verrippung oder als teilweise an der Umfangsfläche der Flanschwand 5 ausgeführter Gewindegang ausgebildet sein kann. An dieser Verbindungsstelle 6 kann der Ansaugleitungsflansch 1 der Drosseleinheit mit den Anschlüssen des Ansaugkanals verbunden werden.A flange wall 5 of the intake line flange 1 comprises a connection point 6, which can be designed, for example, as ribbing or as a thread partially executed on the peripheral surface of the flange wall 5. At this connection point 6, the intake line flange 1 of the throttle unit can be connected to the connections of the intake duct.
In das modulare Deckelelement 8 ist ein Sensormodul 9 eingelassen, dessen Planfläche 12 an der Vorderseite des modularen Deckelelementes 8 anliegt. Das Sensormodul 9 umfasst einen Anschluss 10, der eine Anschlussöffnung 11 begrenzt, die in der Darstellung gemäß Figur 1 gestuft ausgebildet ist. An der Innenseite wie auch an der Außenseite des Anschlusses 10 können einzelne Laschen ausgebildet sein, um ein seitenrichtiges Aufstecken eines in Figur 1 nicht dargestellten Steckerelementes zu gewährleisten.A sensor module 9 is embedded in the modular cover element 8, the flat surface 12 of which rests on the front of the modular cover element 8. The sensor module 9 comprises a connection 10, which delimits a connection opening 11, which is designed in steps in the illustration according to FIG. 1. Individual tabs can be formed on the inside as well as on the outside of the connection 10 in order to ensure that a plug element (not shown in FIG. 1) is inserted in the correct direction.
Figur 2 zeigt das Deckelelement der Drosselldappeneinheit mit daran aufgenommenem Sensormodul in perspektivisch wiedergegebener Vorderansicht. ■ Arn Deckelelement 8, welches eine das Getriebegehäuse 7 umfassende Umrandung aufweist, sind mehrere Öffnungen 13, 14 bzw. 15 vorgesehen. In diese Öffnungen 13, 14 und 15 können Verbindungselemente in Gestalt von Kreuzschlitzschrauben (vergl. Darstellung gem. Figur 1), Schlitzschrauben, Bolzen oder andere Befestigungselemente eingesetzt werden, mit welchen sich das Getriebegehäuse 7 sowie das dieses übergreifende Deckelelement 8 seitlich am Ansaugleitungsflansch 1 der Drosseleihheit fixieren lassen. Anstelle der hier als Bohrung konfigurierten Öffnungen 13, 14 bzw. 15 lässt sich die Befestigung des Getriebegehäuses 7 mit dem dieses übergreifenden modularen Deckelelement 8 auch über Schnappverschlüsse oder umlaufende Verrastungen herbeiführen.FIG. 2 shows the perspective view of the cover element of the throttling dapper unit with the sensor module attached to it. On the cover element 8, which has a border surrounding the gear housing 7, a plurality of openings 13, 14 and 15 are provided. In these openings 13, 14 and 15, connecting elements in the form of Phillips screws (see illustration in accordance with FIG. 1), slotted screws, bolts or other fastening elements can be used, with which the gear housing 7 and the cover element 8 overlapping this laterally on the intake line flange 1 of the Have the throttle unit fixed. Instead of the openings 13, 14 and 15 configured here as a bore, the transmission housing 7 can also be fastened with the modular cover element 8 which overlaps it by means of snap locks or circumferential catches.
In vorteilhafter Weise sind sowohl das Getriebegehäuse 7 als auch das dieses übergreifende modulare Deckelelement 8 als Kunststoffspritzgießbauteile gefertigt. Bei Kunststoffspritz- gießbauteilen, die in Großserie gefertigt werden, lassen sich nach Auswechseln der Spritzform sowohl die Öffnungen 13, 14 und 15 mit kreisförmigem Querschnitt fertigen als auch Schnappverschlussöffnungen bzw. Schnappverschlussvorsprünge anspritzen, mit denen die in Figur 1 bzw. Figur 2 dargestellten Komponenten einer Drosseleinheit miteinander gefügt werden können.In an advantageous manner, both the gear housing 7 and the modular cover element 8 spanning this are manufactured as plastic injection molded components. In the case of plastic injection-molded components which are manufactured in large series, after changing the injection mold, the openings 13, 14 and 15 can be made with a circular cross-section and also snap-on openings or snap-on projections, with which the components shown in FIG. 1 or FIG. 2 are injected Throttle unit can be joined together.
Der Darstellung gem. Figur 2 ist insbesondere entnehmbar, dass der Anschluss 10 am Sensormodul 9 sowohl an der Innenseite eine Steckerlasche 22 als auch an der Außenseite der Steckerwindung eine Steckerlasche 21 umfasst. Diese an den Anschlußwandungen ausgebildeten Steckerlaschen 21 bzw. 22 verhindern ein unsachgemäßes Einfuhren eines hier nicht dargestellten Steckerelementes in die Öffnung 11 des Anschlusses 10 des Sensormoduls 9. Die Planfläche 12 des Sensormoduls 9 ist eben ausgeführt und liegt an einer zu dieser parallelen Planfiäche an der Oberseite des modularen Deckelelementes 8 an.The representation acc. FIG. 2 shows in particular that the connector 10 on the sensor module 9 comprises a connector tab 22 on the inside as well as a connector tab 21 on the outside of the connector turn. These plug tabs 21 and 22 formed on the connection walls prevent improper insertion of a plug element, not shown here, into the opening 11 of the connection 10 of the sensor module 9. The flat surface 12 of the sensor module 9 is flat and lies on a flat surface parallel to this on the top of the modular cover element 8.
Figur 3 ist die Darstellung eines Deckelelementes sowie eines mit diesem verbundenem Getriebegehäuses in perspektivischer Draufsicht zu entnehmen.FIG. 3 shows a perspective top view of a cover element and a gear housing connected to it.
Der Bereich des modularen Deckelelementes 8, welches den Stellantrieb zur Betätigung einer Drosseleinheit notwendigen Antrieb enthält, ist in Figur 3 mit Bezugszeichen 4 gekennzeichnet. Im Bereich der Aufnahme 4 am Deckelelement 8 ist im Getriebegehäuse 7 eine Verrippung 17 angespritzt, welche als Versteifung der Lagerung des Stellantriebes dient. Die am Deckelelement 8 ausgebildete Umrandung überdeckt einen in Figur 3 nicht sichtbaren umlaufenden Steg 27 am Getriebegehäuse 7. Im Getriebegehäuse 7 ist darüber- hinaus eine kreisrunde Öffnung 18 ausgespart. Die kreismnde Öffnung 18 fungiert als Lagerungsstelle für ein in Figur 3 nicht dargestelltes Ende der Drosselklappenwelle, an welcher die Drosselklappe aufgenommen ist. Mittels des von der Aufnahme 4 des Deckelele- mentes 8 umschlossenen Stellantriebes wird die Drosselklappenwelle bewegt, wodurch sich dementsprechend die Drehlage der Drosselklappe im Ansaugquerschnitt 2 des Ansaugleitungsflansches 1 der Drosseleinheit je nach Ansteuerung ändert.The area of the modular cover element 8, which contains the actuator necessary for actuating a throttle unit, is identified in FIG. 3 by reference number 4. In the area of the receptacle 4 on the cover element 8, a rib 17 is injection molded in the gear housing 7, which serves as a stiffening of the bearing of the actuator. The border formed on the cover element 8 covers a circumferential web 27 on the gear housing 7, which is not visible in FIG. 3. In addition, a circular opening 18 is recessed in the gear housing 7. The circular opening 18 functions as a bearing point for an end of the throttle valve shaft, not shown in FIG. 3, at which the throttle valve is received. By means of the receptacle 4 of the cover element Mentes 8 enclosed actuator, the throttle valve shaft is moved, whereby the rotational position of the throttle valve in the intake cross section 2 of the intake pipe flange 1 of the throttle unit changes depending on the control.
Die Drehlage der Drosselklappe wird mittels des Sensormoduls 9 erfasst. Das Sensormodul 9 kann einen ein Potentiometer aufweisenden Sensor oder einen berührungslos arbeitenden Sensor, wie beispielsweise einen Hall- Sensor, umfassen. Mit Bezugszeichen 13 ist die erste Öffnung im Deckelelement 8 sowie im Getriebegehäuse 7 bezeichnet, während mit den Bezugszeichen 14 und 15 die jeweils zweiten und dritten Öffnungen im Getriebegehäuse 7 bzw. im modular aufgebautem Deckelelement 8 bezeichnet sind. Bezugszeichen 20 ist gemäß der Darstellung in Figur 3 eine im Anschluss 10 Sensormoduls 9 ausgebildete Stufe 20 bezeichnet, welche ein unsachgemäßes Einführen eines Steckerelementes in die Öffnung des Anschlusses 10 verhindert.The rotational position of the throttle valve is detected by means of the sensor module 9. The sensor module 9 can comprise a sensor having a potentiometer or a contactlessly working sensor, such as a Hall sensor. The first opening in the cover element 8 and in the transmission housing 7 is designated by reference numeral 13, while the respective second and third openings in the transmission housing 7 and in the modularly constructed cover element 8 are designated by reference symbols 14 and 15. As shown in FIG. 3, reference numeral 20 denotes a step 20 formed in the connector 10 sensor module 9, which prevents an improper insertion of a plug element into the opening of the connector 10.
Der Darstellung gemäß Figur 4 ist die Frontansicht des am Deckelelernentes befestigten Sensormoduls zu entnehmen.The representation according to FIG. 4 shows the front view of the sensor module attached to the cover element.
Am Deckelelement 8 liegt das Sensorelement 9 mit seiner Planfläche 12 an einer zu dieser parallelen Planfläche an. Das Deckelelement 8 umfasst eine Umrandung 30, welche einen am Getriebegehäuse 7 ausgebildeten umlaufenden Steg 27 übergreift. Die Umrandung 30 erstreckt sich, den umlaufenden Steg 27 des Getriebegehäuses 7 vollständig überdeckend, am Deckelelement 8. Der Anschluss 10, welcher die Öffnung 11 begrenzt ist an seiner Wandung 16 mit der bereits erwähnten außenseitigen Steckerlasche 21 versehen. Mit Bezugszeichen 13, 14 und 15 sind am modularen Deckelelement 8 jeweils die erste Öffnung, die zweite Öffnung bzw. die dritte Öffnung bezeichnet.On the cover element 8, the sensor element 9 lies with its flat surface 12 on a flat surface parallel to this. The cover element 8 comprises a border 30, which overlaps a circumferential web 27 formed on the gear housing 7. The border 30 extends, completely covering the circumferential web 27 of the transmission housing 7, on the cover element 8. The connection 10, which delimits the opening 11, is provided on its wall 16 with the already mentioned outside plug tab 21. Reference symbols 13, 14 and 15 denote the first opening, the second opening and the third opening, respectively, on the modular cover element 8.
Figur 5 zeigt eine Explosionsdarstellung der Drosseleinheit, das Getriebegehäuse, das Dek- kelelement und das Sensormodul umfassend.FIG. 5 shows an exploded view of the throttle unit, comprising the gear housing, the cover element and the sensor module.
Am Getriebegehäuse 7 ist ein umlaufender Steg 27 angeordnet. Im Inneren des Getriebegehäuses 9 befinden sich U-förmig konfigurierte Lagerungselemente, die der Aufnahme eines nicht dargestellten, beispielsweise elektrisch ausgebildeten, Stellantriebes dienen. Darüber- inaus ist im Getriebegehäuse 7 eine Öffnung 18 ausgebildet, an der ein ringförmig verlaufender Steg ausgebildet ist. In der Öffnung 18 ist die nicht dargestellte Drosselklappen- welle, an der ihrerseits die Drosselklappe ausgebildet ist, drehbar aufgenommen. Hinter der im Boden des Getriebegehäuses 7 ausgebildeten als Lagerungsstelle für die Drosselklappeweile dienenden Öffnung 18, befindet sich ein Stellradaufnahme 28, sowie ein Motorwellenlager 26. Korrespondierend zu den Lagerungsstellen 23 des Antriebes ist am Deckelelement 8 die Aufnahme 4 für den Stellantrieb angespritzt. Gegenüber der Stellradaufnahme 28 befindet sich an der Vorderseite des modularen Deckelelementes 8 eine halbkreisförmige Wölbung, welche das in die Stellradaufnahme 28 eingelassene Stellrad überdeckt. An der Vorderseite des modularen Deckelelementes 8 ist eine Deckelöffnung 29 vorgesehen, die von einem Rand 34 begrenzt ist.A circumferential web 27 is arranged on the gear housing 7. In the interior of the gear housing 9 there are bearing elements configured in a U-shape, which are used to hold an actuator (not shown, for example, electrically designed). In addition, an opening 18 is formed in the gear housing 7, on which an annular web is formed. The throttle valve shaft, not shown, on which the throttle valve is formed, is rotatably received in the opening 18. Behind the opening 18 in the bottom of the transmission housing 7, which serves as a bearing point for the throttle valve, there is an adjusting wheel receptacle 28 and a motor shaft bearing 26. Corresponding to the bearing points 23 of the drive, the receptacle 4 for the actuator is injection molded onto the cover element 8. Opposite the adjusting wheel receptacle 28 is a semicircular curvature on the front of the modular cover element 8, which covers the adjusting wheel let into the adjusting wheel receptacle 28. At the front of the modular cover element 8, a cover opening 29 is provided which is delimited by an edge 34.
Bezugszeichen 13 kennzeichnet die Lage der ersten Öffnung im modularen Deckelelement 8, die umlaufende Umrandung 30 am modularen Deckelelement 8 ist so bemessen, dass sie den umlaufenden Steg 27 am Boden des Getriebegehäuses 7 überdeckt.Reference numeral 13 denotes the position of the first opening in the modular cover element 8, the circumferential border 30 on the modular cover element 8 is dimensioned such that it covers the circumferential web 27 on the bottom of the gear housing 7.
Das Sensormodul 9 umfasst die bereits erwähnte Planfläche 12 sowie einen Sensormodul- Korpus 32, dessen Seitenflächen 33 an dem Deckelöffnungsrand 34 der Öffnung 29 anlie- gen. Durch den Verlauf des Deckelöffnungsrandes 34 der Deckelöffnung 29 ist sichergestellt, dass das Sensormodul 9 in korrekter Einbaulage in das modulare Deckelelement 8 eingeführt wird. Am Sensormodul 9 ist mindestens eine Steckerfahne 31 ausgebildet. In der Ausführungsvariante des Sensormoduls 9 gemäß der Darstellung in Figur 5 sind am Sensormodul-Korpus 32 zwei übereinander liegend orientierte Steckerfahnen 31 vorgese- hen.The sensor module 9 includes the already mentioned plane surface 12 and a sensor module body 32, the side surfaces 33 of which lie against the lid opening edge 34 of the opening 29. The course of the lid opening edge 34 of the lid opening 29 ensures that the sensor module 9 is in the correct installation position in FIG the modular cover element 8 is inserted. At least one connector tab 31 is formed on the sensor module 9. In the embodiment variant of the sensor module 9 as shown in FIG. 5, two connector lugs 31 oriented one above the other are provided on the sensor module body 32.
Bei in axialer Richtung erfolgendem Einführen - bezogen auf die Lage der Lagerungsstelle 18 der Drosselklappenwelle - des Sensormoduls 9 in die Deckelöffnung 29, werden die Steckerfahnen 31 am Sensormodul-Korpus 32 in Steckeraufnahmen 24, die am Boden des Getriebegehäuses 7 vorgesehen sind, eingeführt. In der Darstellung des Getriebegehäuses 7 in Figur 5 sind die Steckeraufnahmen 24 beispielsweise als T-Nuten 25 konfiguriert. Durch das Sensormodul 9 kann mithin der in den Lagerungsstellen 23 aufgenommene und von der Aufnahme 4 des modularen Deckelelementes 8 umschlossene Stellantrieb kontaktiert werden.When the sensor module 9 is inserted into the cover opening 29 in relation to the position of the throttle valve shaft bearing position 18, the connector lugs 31 on the sensor module body 32 are inserted into connector receptacles 24 which are provided on the bottom of the transmission housing 7. In the illustration of the gear housing 7 in FIG. 5, the connector receptacles 24 are configured, for example, as T-slots 25. The sensor module 9 can therefore be used to contact the actuator which is accommodated in the bearing points 23 and enclosed by the receptacle 4 of the modular cover element 8.
Das als modulares Deckelelement 8 ausgebildete, mit dem Getriebegehäuse 7 zu fügende Spritzgussbauteil erlaubt die Trennung der Fixierung von Getriebegehäuse 7 und Sensormodul 9 und die Ausrichtung des Sensormoduls 9 relativ zur Lage der Komponente, deren Drehlage zu erfassen ist - hier die Drehlage einer Drosselklappenwelle. Zunächst wird das modulare Deckelelement 8 mit dem Getriebegehäuse 7 verbunden. Dies kann durch Verra- sten des umlaufenden Steges 27 mit der in einem entsprechenden Übermaß ausgeführten Umrandung 30 des Deckelelementes 8 erfolgen. Mittels durch die Öffnungen 13, 14, 15 (vergl. Darstellung gem. Figur 1) gesteckter Befestigungselemente, wie z.B. Schrauben oder Bolzen, kann die aus Getriebegehäuse 7 modularem Deckelelement 8 gefügte Einheit • seitlich am Ansaugleitungsfiansch 1 befestigt werden.The injection molded component, which is designed as a modular cover element 8 and is to be joined with the gear housing 7, allows the fixing of the gear housing 7 and the sensor module 9 to be separated and the orientation of the sensor module 9 relative to the position of the component whose rotational position is to be recorded - here the rotational position of a throttle valve shaft. First, the modular cover element 8 is connected to the gear housing 7. This can be done by latching the circumferential web 27 with the border 30 of the cover element 8, which is designed in a corresponding oversize. By means of fastening elements, such as screws, inserted through the openings 13, 14, 15 (see illustration according to FIG. 1) or bolt, the unit made from the gearbox housing 7 modular cover element 8 can be • attached to the side of the intake pipe flange 1.
Nach dem Fügen der Komponenten 7 und 8 der Drosseleinheit wird in die Öffnung 29 ab- schließend das Sensormodul 9 eingeführt und entsprechend zur Öffnung 18 im Boden des Getriebegehäuses 7 ausgerichtet. Damit lässt sich eine einfache Justage des Sensormoduls 9 unabhängig von der Position des modularen Deckelelementes 8 am Getriebegehäuse 7 vornehmen. Die Ausrichtung erfolgt lediglich am Sensormodul 9, welches in die Oberseite des modularen Deckelelementes 8 einzuschieben ist. Dabei übernimmt das Sensormodul 9 sowohl die Kontaktierung des Stellantriebes über die in die Steckeraufnahmen 24 einzuführenden Steckerfahnen 31 als auch den Anschluss der Sensorelemente. Eine Ausrichtimg des Sensormoduls 9 unabhängig von der Einbauanlage des Deckelelementes 8 ist insbesondere bei berührungslos arbeitenden Sensorsystemen zur Erzielung einer hohen Messgenauigkeit von ausschlaggebender Bedeutung. Das modulare Deckelelement 8, vorzugswei- se als Kunststoffspritzgussbauteil beschaffen, kann in hohen Stückzahlen in einer Ausführungsvariante gefertigt werden, während die Varianz auf das Sensormodul begrenzt bleibt und so eine kostengünstigere Herstellung einer Drosselklappeneinheit erlaubt. Neben Sensormodulen, die beispielsweise Potentiometer umfassen, kann das Sensormodul 9 mit berührungslosen Drehwinkelsensoren, beispielsweise als Hall-Sensoren, ausgestattet sein. Werden Hall-Sensoren als berührungslose Drehwinkelsensoren eingesetzt, ist eine sehr exakte Positionierung des Sensormoduls 9 erforderlich. Diese exakte Sensorpositionierung lässt sich mit der erfindungsgemäß vorgeschlagenen Lösung unabhängig von der Einbaulage des Deckelelementes realisieren, da eine Ausrichtung des Sensormoduls 9 relativ zum als Standardserienbauteil gefertigt modularen Deckelelement 8 problemlos möglich ist.After the components 7 and 8 of the throttle unit have been joined, the sensor module 9 is finally introduced into the opening 29 and aligned accordingly with the opening 18 in the bottom of the gear housing 7. A simple adjustment of the sensor module 9 can thus be carried out independently of the position of the modular cover element 8 on the gear housing 7. The alignment takes place only on the sensor module 9, which is to be inserted into the top of the modular cover element 8. The sensor module 9 takes over both the contacting of the actuator via the plug lugs 31 to be inserted into the connector receptacles 24 and the connection of the sensor elements. Alignment of the sensor module 9 independently of the installation system of the cover element 8 is of crucial importance, in particular in the case of contactlessly operating sensor systems, in order to achieve high measurement accuracy. The modular cover element 8, preferably procured as a plastic injection molded component, can be manufactured in large numbers in one embodiment variant, while the variance remains limited to the sensor module and thus allows a throttle valve unit to be produced more cost-effectively. In addition to sensor modules, which include, for example, potentiometers, the sensor module 9 can be equipped with non-contact rotation angle sensors, for example as Hall sensors. If Hall sensors are used as non-contact rotation angle sensors, very exact positioning of the sensor module 9 is required. This exact sensor positioning can be realized with the solution proposed according to the invention regardless of the installation position of the cover element, since alignment of the sensor module 9 relative to the modular cover element 8 manufactured as a standard series component is possible without any problems.
Die dargestellten Sensormodule 9 können bereits mit Kundensteckern versehen sein, so dass sich in besonders vorteilhafter Weise keine Verbindungsstellen zwischen Stecker und eingesetzten Sensorelementen benötigt werden. Dies wiederum führt zu einer Reduzierung der Ausfallwahrscheinlichlceit durch Bruch von Verbindungsstellen aufgrund nicht aus- bleibender Erschütterungen im Motorraum eines Kraftfahrzeuges.The sensor modules 9 shown can already be provided with customer plugs, so that no connection points between the plug and the sensor elements used are required in a particularly advantageous manner. This in turn leads to a reduction in the likelihood of failure due to the breaking of connection points due to inevitable vibrations in the engine compartment of a motor vehicle.
Dem Sensormodul 9 gemäß Figur 5 ist die Stufe 20 am Anschluss 10 zu entnehmen, die ein fehlerhaftes Aufstecken eines Steckerelementes verhindert. In der Wandung 16 des Anschlusses 10 ist die außenseitige Lasche 21 deutlich zu erkennen. Das Sensormodul 9 gestatet in vorteilhafter Weise einen gleichzeitigen Anschluss des vom modularen Deckelelement 8 geschützten Stellantriebes zur Betätigung einer Drosselklappe, als auch die Kontaktierung des Sensorelementes zur Erfassung der Drehlageposition dieses Bauteiles einer Drosseleinheit. BezugszeichenlisteThe stage 20 at the connector 10 can be seen in the sensor module 9 according to FIG. 5, which prevents a faulty insertion of a plug element. In the wall 16 of the connection 10, the outside tab 21 can be clearly seen. The sensor module 9 advantageously allows a simultaneous connection of the actuator protected by the modular cover element 8 to actuate a throttle valve, as well as the contacting of the sensor element for detecting the rotational position of this component of a throttle unit. LIST OF REFERENCE NUMBERS
AnsaugleitungsflanschAnsaugleitungsflansch
Ansaugquerschnittintake cross
Befestigungattachment
Aufnahme StellantriebRecording actuator
Flanschwandflange
Verrastunglatching
Getriebegehäuse modulares DeckelelementGearbox housing modular cover element
Sensormodulsensor module
Anschlussconnection
Öffnungopening
Planfläche SensormodulFlat surface of sensor module
1. Öffnung1st opening
2. Öffnung2nd opening
3. Öffnung3rd opening
Anschluss- WandungConnection wall
Versteifende VerrippungStiffening ribbing
Öffnung für DrosselklappenwelleThrottle shaft opening
Planfläche GetriebegehäuseFlat surface of gear housing
Stufestep
Steckerlasche außenPlug tab outside
Steckerlasche innenPlug tab inside
Antriebslagerungdrive storage
Steckeraufnahmeplug receptacle
T-NutT-slot
Motorwellenlager umlaufender StegMotor shaft bearing surrounding web
StellradaufnahmeStellradaufnahme
Deckelöffnunglid opening
Umrandung Deckelelement • Border cover element •
Steckerfahneconnector lug
Steckermodul-KorpusPlug module body
Seitenflächeside surface
Deckelöffnungsrand Lid opening edge

Claims

Patentansprüche claims
1. Drosselvorrichtung zur Aufnahme im Ansaugtrakt einer Verbrennungskraftmaschine mit einem Getriebegehäuse (7) zur Aufnahme eines eine Drosselklappe betätigenden Stellantriebes und einem Deckelelement (8), welches am Getriebegehäuse (7) montierbar ist, dadurch gekennzeichnet, dass das Deckelelement (8) modular ausgebildet ist und eine Öffnung (29) zur Aufnahme eines Sensormoduls (9) umfasst, welches unabhängig von der Montageposition des Deckelelementes (8) am Getriebegehäuse (7) zu einer Lagerungsstelle (18) positionierbar ist.1. Throttle device for receiving in the intake tract of an internal combustion engine with a gear housing (7) for receiving a throttle valve actuating actuator and a cover element (8) which can be mounted on the gear housing (7), characterized in that the cover element (8) is of modular design and an opening (29) for receiving a sensor module (9), which can be positioned independently of the mounting position of the cover element (8) on the gear housing (7) to a bearing point (18).
10.10th
2. Drosselvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass das modulare Deckelelement (8) eine Umrandung (30) aufweist, welche einen umlaufenden Steg (27) am Getriebegehäuse (7) übergreift.2. Throttle device according to claim 1, characterized in that the modular cover element (8) has a border (30) which engages over a circumferential web (27) on the gear housing (7).
15 3. Drosselvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die Lagerungsstelle (18) im Getriebegehäuse (7) angeordnet ist.15 3. Throttle device according to claim 1, characterized in that the bearing point (18) is arranged in the transmission housing (7).
4. Drosselvorrichtung gemäß Anspruch 3, dadurch gekennzeichnet, dass das Sensormodul (9) am modularen Deckelelement (8) in axialer Richtung bezogen auf die Lage-4. Throttle device according to claim 3, characterized in that the sensor module (9) on the modular cover element (8) in the axial direction based on the position
20 rungsstelle (18) am Getriebegehäuse (7) montierbar ist.20 approximately (18) on the gear housing (7) can be mounted.
5. Drosselvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass das Sensormodul (9) einen Modul-Korpus (32) zur Aufnahme in der Öffnung 29 des modularen Deckelelementes (8) umfasst und eine Planfläche (12) zur Anlage am modularen Dek-5. Throttle device according to claim 1, characterized in that the sensor module (9) comprises a module body (32) for receiving in the opening 29 of the modular cover element (8) and a flat surface (12) for contact with the modular decorative element.
25 kelelement (8) aufweist.25 kelelement (8).
••
6. Drosselvorrichtung gemäß Ansprach 1, dadurch gekennzeichnet, dass das Sensormodul (9) mindestens eine Steckerfahne (31) enthält, die in eine Steckeraufnahme (24) im Getriebegehäuse (7) einführbar ist. 306. Throttle device according spoke 1, characterized in that the sensor module (9) contains at least one connector lug (31) which can be inserted into a connector receptacle (24) in the transmission housing (7). 30
7. Drosselvomchtung gemäß Anspruch 1, dadurch gekennzeichnet, dass das Sensormodul (9) eine kundenseitige Sensorkontaktierung (10, 11) und die Kontaktierung (31) des Stellantriebes einer Drosselklappeneinheit umfasst.7. throttle device according to claim 1, characterized in that the sensor module (9) comprises a customer-side sensor contact (10, 11) and the contact (31) of the actuator of a throttle valve unit.
35 8. Drosselvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass das Sensormodul (9) ein Potentiometer zur Drehlageerfassung enthält. 35 8. Throttle device according to claim 1, characterized in that the sensor module (9) contains a potentiometer for detecting the rotational position.
9. Drosselvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass das Sensormodul (9) einen berührungslosen Drehwinkelsensor enthält.9. throttle device according to claim 1, characterized in that the sensor module (9) contains a non-contact rotation angle sensor.
10. Drosselvorrichtimg gemäß Anspruch 9, dadurch gekennzeichnet, dass der berührungslose Drehwinkelsensor als Hall-Sensor beschaffen ist. 10. Drosselvorrichtimg according to claim 9, characterized in that the non-contact rotation angle sensor is designed as a Hall sensor.
EP02790260A 2002-02-07 2002-11-26 Throttle housing comprising a modular cover element Expired - Lifetime EP1476647B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10205090 2002-02-07
DE10205090A DE10205090A1 (en) 2002-02-07 2002-02-07 Throttle body with modular cover element
PCT/DE2002/004330 WO2003067058A1 (en) 2002-02-07 2002-11-26 Throttle housing comprising a modular cover element

Publications (2)

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EP1476647A1 true EP1476647A1 (en) 2004-11-17
EP1476647B1 EP1476647B1 (en) 2006-11-22

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EP02790260A Expired - Lifetime EP1476647B1 (en) 2002-02-07 2002-11-26 Throttle housing comprising a modular cover element

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US (1) US7069906B2 (en)
EP (1) EP1476647B1 (en)
JP (1) JP2005517114A (en)
DE (2) DE10205090A1 (en)
WO (1) WO2003067058A1 (en)

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JP2008069636A (en) * 2006-09-12 2008-03-27 Nikki Co Ltd Throttle device with built-in electronic control unit
EP3800716B1 (en) * 2019-10-03 2022-05-04 Marelli Europe S.p.A. Throttle valve for adjusting the feeding of a gas to a fuel cell and electric drive vehicle including the throttle valve

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JP2758535B2 (en) * 1992-07-16 1998-05-28 株式会社日立製作所 Electronic throttle control
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Also Published As

Publication number Publication date
EP1476647B1 (en) 2006-11-22
JP2005517114A (en) 2005-06-09
US7069906B2 (en) 2006-07-04
WO2003067058A1 (en) 2003-08-14
DE50208812D1 (en) 2007-01-04
US20040231643A1 (en) 2004-11-25
DE10205090A1 (en) 2003-09-04

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