EP1310634A2 - Elément d'ajustage magnétique pour un arbre à cames - Google Patents

Elément d'ajustage magnétique pour un arbre à cames Download PDF

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Publication number
EP1310634A2
EP1310634A2 EP02020511A EP02020511A EP1310634A2 EP 1310634 A2 EP1310634 A2 EP 1310634A2 EP 02020511 A EP02020511 A EP 02020511A EP 02020511 A EP02020511 A EP 02020511A EP 1310634 A2 EP1310634 A2 EP 1310634A2
Authority
EP
European Patent Office
Prior art keywords
magnetic
magnetic actuator
camshaft
sensor elements
circuit board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02020511A
Other languages
German (de)
English (en)
Other versions
EP1310634A3 (fr
Inventor
Klaus Packmann
Jens Nicolai
Harald Barth
Kai Elmering
Ludwig Freund
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.)
Valeo Schalter und Sensoren GmbH
Original Assignee
Valeo Schalter und Sensoren 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
Priority claimed from DE10215727A external-priority patent/DE10215727A1/de
Application filed by Valeo Schalter und Sensoren GmbH filed Critical Valeo Schalter und Sensoren GmbH
Publication of EP1310634A2 publication Critical patent/EP1310634A2/fr
Publication of EP1310634A3 publication Critical patent/EP1310634A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2301/00—Using particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/04—Sensors
    • F01L2820/041—Camshafts position or phase sensors

Definitions

  • the invention relates to a magnetic actuator for a Camshaft adjuster, with a basic body, with provided on the housing base body receiving portions for receiving at least one magnetic body, the Magnetic body for actuating a coaxial to the camshaft arranged, causing the adjustment of the camshaft Actuating means is provided.
  • a means of adjustment in particular hydraulic valves are used, which by the magnetic body can be actuated in the axial direction.
  • Known magnetic actuators have a basic housing body Cast metal, in particular cast aluminum. To the The magnetic bodies are screwed onto the basic body. To Supplying the magnetic body with electrical current is one Wiring required.
  • camshaft adjusters are for example from DE 196 54 926 A1 or DE 199 55 507 A1 known. These camshaft adjusters are in the drive connection of the camshaft to the crankshaft arranged and carried by a central clamping screw, which in turn engages the camshaft coaxially and connects to the camshaft. The Clamping screw is in her on the camshaft adjoining area to adjust the Phase position of the camshaft relative to the crankshaft rotatable transmission parts of the camshaft adjuster.
  • the clamping screw is centered with respect to the camshaft, which in the area of the Screw shaft forms the housing of a control spool, which in turn can be moved over the magnetic actuator.
  • the magnetic actuator is to the housing of the internal combustion engine lockable while using the magnetic adjuster cooperating anchors connected to the spool is.
  • This arrangement of the magnetic actuator on the outside of the housing the internal combustion engine has the advantage that the Magnetic plate on the anchor after assembling the Camshaft and the camshaft adjuster aligned can be, so that between the magnetic body and the Anchors have comparatively small gap cross sections, such as they are required to have sufficiently large actuating forces relatively small coil and magnetic body size too realize.
  • the present invention is based on the object to provide a magnetic actuator that is simple and is inexpensive to manufacture and in particular Cabling effort saved.
  • the Housing base made of plastic, in particular glass fiber reinforced plastic, and that at the Plastic arranged or injected into the plastic Conductor tracks are provided that have a central electrical connection with the at least one Magnetic body and / or with the adjustment or the movement of the sensor elements detecting the camshaft.
  • the plastic is advantageously a thermoplastic.
  • the Invention has the advantage that starting from one central connection of all electrical power required components of the magnetic actuator by means of Conductor tracks are supplied. Wiring the Magnetic body is therefore omitted.
  • the plastic injected conductive traces is advantageous in that are inaccessible and therefore not damaged can.
  • the invention builds Magnetic actuator very compact.
  • An advantageous embodiment of the invention provides Basic housing body pockets for receiving the sensor elements in front. This has the advantage that the separate protective housing Sensor elements can be omitted.
  • the sensor elements can be embedded in the main body of the housing so that they are not accessible or are difficult to access. For safe Attachment of the sensor elements can this after Insert in the respective pockets with a appropriate plastic can be cast.
  • the pockets are advantageously in the range between two receiving sections. This has the advantage that the Bags or the sensor elements locally close to each other lie, which makes the conductor tracks relatively short and therefore can be kept immune to interference and easy to assemble.
  • Another advantageous embodiment of the invention results when the sensor elements on a Printed circuit board are arranged. This has the advantage that additional, required electrical components together can be preassembled and handled.
  • the housing base body preferably has a receptacle for the printed circuit board.
  • the circuit board is then protective arranged in the recording.
  • the PCB not the main body of the housing.
  • the Surface design corresponds to the recording advantageously the negative of the topography of the Printed circuit board.
  • the recording is advantageously in the range between two receiving sections. With one board you can consequently several, in particular two, sensor elements Electricity are supplied. One sensor element each Detection of the rotational movement of a camshaft is provided.
  • the Conductor tracks from the central connection for receiving and contact the circuit board. This eliminates Cabling effort between receptacle and board.
  • Another advantageous embodiment of the invention is characterized in that the conductor tracks with the Magnetic bodies electrically connected via the printed circuit boards are. This has the advantage that only the PCB must be supplied with power. About the Circuit board are then energized the magnetic body. Lies the printed circuit board between two receiving sections, so it can, for example, both magnetic bodies with electricity supply.
  • the magnetic bodies see electrical connection means before that extend to the recording and the Contact the circuit board. This eliminates Cabling effort between the circuit board and the Magnetic bodies.
  • An advantageous embodiment of the invention provides that all conductor tracks run parallel next to each other and preferably lie in one plane. This has the advantage that the risk of incorrect contacts intersecting Conductor tracks is avoided.
  • the sensor elements coaxial to the longitudinal axis of the magnetic body or the each camshaft run.
  • a precise and easy attachment of the sensor elements to the Basic body made.
  • Another embodiment of the invention provides that one sensor element each with the respective one Adjustment means or with the respective camshaft non-rotatably coupled encoder wheel detected.
  • the encoder wheel can do this be trained that it is about a certain Angle section outputs signals to the sensor element. It is conceivable that the encoder wheel at least in sections has magnetized material, then the Sensor element is designed as a magnetic field sensor element.
  • the encoder wheel is preferably a stamped or bent part educated. Especially when the sensor elements run coaxial to the longitudinal axis of the magnetic body, offer stamped and / or bent parts, the encoder sections perpendicular to the longitudinal axis of the sensor elements or the Magnetic body or the camshaft run.
  • the magnetic body is advantageously a pressure magnet educated.
  • the magnetic body When the magnetic body is energized, consequently on the actuating means interacting with the magnetic body exerted pressure in the axial direction.
  • the adjusting means can be in its initial position by compression springs be returned.
  • the magnetic actuator 10 includes one Basic housing body 12, which has fastening sections 14 can be flanged to a housing that the Camshaft and crankshaft of an internal combustion engine includes.
  • the one on a housing, not shown Internal combustion engine screw-on housing base body 12 2 has two circular cylindrical openings 16 on. There is one around each of the openings 16 Receiving section 18 for the arrangement of one Magnetic body 20 is provided.
  • the one made of plastic and preferably glass fiber reinforced housing base body 12 looks at his Top two pockets 22 in front, one in each Sensor element 24 can be used.
  • the two in the 2 are clearly recognizable sensor elements 24 each arranged on a printed circuit board 26.
  • the Surface design of the pockets 22 corresponds to Essentially the negative of the topography of the sensor elements 24 This ensures that the sensor elements 24 are seated securely guaranteed in the pockets.
  • Fig. 2 shows injected into the base body 12 Conductor tracks 28, the free ends 30 in a central electrical connection 32 open.
  • the free ends 30 of the Conductors 28 are bent and protrude from the Basic body 12 out. You will be from one to the Basic body 12 molded plug connector 34 protectively surround.
  • the free ends 36 of the conductor tracks 28 protrude in the area the magnetic body 20 out of the housing base body 12. These free ends 36 are in the assembled state the connection means 38 provided to the magnetic bodies 20 contacted. The contact is advantageously made when placing the magnetic body 20 in their intended Position on the receiving sections 18. For permanent The free ends 36 are advantageously contacted soldered or welded to the connection means. to Attachment of the magnetic body 20 to the basic housing body 12 fastening screws 40 are provided. Between the Housing basic body 12 and the magnetic bodies 20 are advantageously inserted or molded sealing rings.
  • the conductor tracks 28 also provide free ends 42 which itself within the housing body 12 to the Pockets 22 extend. When inserting the sensor elements 24 together with printed circuit boards 26, contact is made with the Printed circuit boards 26 with the free ends 42 of the conductor track 28th
  • Printed circuit boards 26 and the connecting means 38 with the free ends 42 of the conductor tracks 28 are the corresponding areas with potting compound 44, as in Fig. 1 is filled.
  • FIG. 3 to 8 show a second invention Magnetic actuator 50.
  • the corresponding to the magnetic actuator 10 Components are in the magnetic actuator 50 with corresponding Provide reference numbers.
  • the magnetic actuator 50 differs from that Magnetic actuator 10 in that the sensor elements 24 a common circuit board 52 are arranged.
  • the Printed circuit board 52 which is particularly evident in FIG. 6 can be seen, is mounted in a receptacle 54 Condition arranged.
  • the recording 54 is in the area between the two receiving sections 18th
  • the conductor tracks 56 shown in FIG. 5 extend from the central connection 32 to the receptacle 54, wherein the free ends 58 in the central connection 32 from the Protruding basic body 12.
  • the free ends 60 of the parallel to each other, in a multiple curved conductor tracks protrude in the area of Recording 54 out of the housing base body 12.
  • Printed circuit board 52 contacted with the free ends 60 such as it is shown in Fig. 6.
  • connection means 62 are attached to the receiving sections 18 the magnetic body 20 with contacts of the printed circuit board 52 contacted.
  • the magnetic bodies 20 are energized consequently, as is clear from FIG. 7, about the PCB 52.
  • housing of the internal combustion engine flanged state is on the magnetic body 20th opposite side of the housing base body 12 with a respective sensor element 24 cooperating with the respective actuating means or with the respective camshaft rotatably coupled encoder wheel 64 is provided. That the Rotary movement of the adjusting means or the camshaft following The encoder wheel has various encoder sections 66, which at Pass the sensor element 24 to a sensor signal to lead.
  • the encoder wheel 64 is advantageously a punch and Bent part trained in the manufacture is inexpensive.
  • the sensor elements 24 are coaxial in the magnetic actuator 50 arranged to the longitudinal axis of the magnetic body 20.
  • the Transmitter sections 66 therefore largely extend into one perpendicular to the longitudinal axis of the magnetic body 20 trending level.
  • a magnetic field acts an anchor, not shown, with the adjusting means or is coupled to the camshaft.
  • the adjusting means acts an anchor, not shown, with the adjusting means or is coupled to the camshaft.
  • Embodiment of the magnetic body is generated over the Magnetic field either the armature towards the magnetic body 20 axially tightened or repelled. This will result in a axial adjustment of the adjusting means.
  • the magnetic actuator 50 has the magnetic actuator 10 den Advantage that by moving the sensor elements nearby of the central electrical connection 32, the conductor tracks 56 compared to the conductor tracks 28 are greatly simplified. Furthermore, by centrally arranging the sensor elements 24 the use of only one circuit board 52 possible, whereby the sensor elements 24 with the Printed circuit board 52 handled as a common pre-assembly group can be.
  • Both described magnetic actuators 10 and 50 have the Advantage that they are only from the top are mountable.
  • the individual components can be vertical to the base of the main body of the housing. The assembly can be done by machine.
  • the magnetic actuator 50 accordingly the magnetic actuator 10
  • the receptacle 54 with potting compound be sealed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP02020511A 2001-11-07 2002-09-13 Elément d'ajustage magnétique pour un arbre à cames Withdrawn EP1310634A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10154212 2001-11-07
DE10154212 2001-11-07
DE10215727 2002-04-10
DE10215727A DE10215727A1 (de) 2001-11-07 2002-04-10 Magnetsteller für einen Nockenwellenversteller

Publications (2)

Publication Number Publication Date
EP1310634A2 true EP1310634A2 (fr) 2003-05-14
EP1310634A3 EP1310634A3 (fr) 2007-07-25

Family

ID=26010511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020511A Withdrawn EP1310634A3 (fr) 2001-11-07 2002-09-13 Elément d'ajustage magnétique pour un arbre à cames

Country Status (2)

Country Link
US (1) US6892686B2 (fr)
EP (1) EP1310634A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007060604A1 (de) 2007-12-13 2009-06-18 Continental Teves Ag & Co. Ohg Magnetfeld-Sensorelement
US8261706B2 (en) 2007-08-24 2012-09-11 Schaeffler Technologies AG & Co. KG Timing adjustment device for an internal combustion engine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007111711A2 (fr) * 2005-11-28 2007-10-04 Borgwarner Inc Module de commande par came variable a intelligence
JP2010501779A (ja) * 2006-08-25 2010-01-21 ボーグワーナー・インコーポレーテッド 位置センサ一体型可変力ソレノイド
CN106762005B (zh) * 2017-01-24 2023-04-18 绵阳富临精工机械股份有限公司 一种用于电磁执行器的电路结构
US10612430B2 (en) * 2017-06-20 2020-04-07 ECO Holding 1 GmbH Oil control valve to control a cam phaser with a spool positioned by external actuator
DE102018120160A1 (de) * 2018-08-20 2020-02-20 Schaeffler Technologies AG & Co. KG Triggerrad mit wellenförmiger Umformung; sowie Nockenwellenversteller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19654926A1 (de) 1996-03-22 1997-11-20 Daimler Benz Ag Vorrichtung zur relativen Winkelverstellung einer Nockenwelle
DE19955507A1 (de) 1999-11-18 2001-06-07 Daimler Chrysler Ag Nockenwellensteller für Brennkraftmaschinen

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US4454856A (en) * 1982-08-27 1984-06-19 Ford Motor Company Distributor construction and signal generator
US4805571A (en) * 1985-05-15 1989-02-21 Humphrey Cycle Engine Partners, L.P. Internal combustion engine
US4771742A (en) * 1986-02-19 1988-09-20 Clemson University Method for continuous camlobe phasing
KR100337710B1 (ko) * 1994-01-26 2002-09-12 히다치 오토모티브 엔지니어링 가부시키 가이샤 내연기관용배전기
US5927240A (en) * 1995-04-07 1999-07-27 Maxon; Eric A. Housing shared by vehicle component and disabling switch and decoder
DE19622555A1 (de) * 1996-06-05 1997-12-11 Schaeffler Waelzlager Kg Nockenwellenverstellvorrichtung mit einer druckabhängigen Kopplung des Stellkolbens in einer Endlage
US6167855B1 (en) * 1998-06-12 2001-01-02 Siemens Canada Limited Integrated air-fuel module and assembly method
US6541959B2 (en) * 2001-02-27 2003-04-01 S & S Cycle, Inc. Angular position sensing system with magnet and rotor arrangement
US6435154B1 (en) * 2001-06-21 2002-08-20 Borgwarner Inc. VCT controls integrated into front cover of engine
DE10148059A1 (de) * 2001-09-28 2003-04-17 Daimler Chrysler Ag Nockenwellenverstellvorrichtung für eine Brennkraftmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19654926A1 (de) 1996-03-22 1997-11-20 Daimler Benz Ag Vorrichtung zur relativen Winkelverstellung einer Nockenwelle
DE19955507A1 (de) 1999-11-18 2001-06-07 Daimler Chrysler Ag Nockenwellensteller für Brennkraftmaschinen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8261706B2 (en) 2007-08-24 2012-09-11 Schaeffler Technologies AG & Co. KG Timing adjustment device for an internal combustion engine
DE102007040017B4 (de) * 2007-08-24 2020-09-17 Schaeffler Technologies AG & Co. KG Steuerzeitenstellvorrichtung für eine Brennkraftmaschine mit Fertigungsverfahren
DE102007060604A1 (de) 2007-12-13 2009-06-18 Continental Teves Ag & Co. Ohg Magnetfeld-Sensorelement
US8575924B2 (en) 2007-12-13 2013-11-05 Continental Teves Ag & Co. Ohg Magnetic field sensor element

Also Published As

Publication number Publication date
EP1310634A3 (fr) 2007-07-25
US6892686B2 (en) 2005-05-17
US20030084862A1 (en) 2003-05-08

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