EP3025358A1 - Elektromagnetische stellvorrichtung und system zur verstellung einer funktionalität eines kraftfahrzeugaggregats - Google Patents
Elektromagnetische stellvorrichtung und system zur verstellung einer funktionalität eines kraftfahrzeugaggregatsInfo
- Publication number
- EP3025358A1 EP3025358A1 EP14729227.0A EP14729227A EP3025358A1 EP 3025358 A1 EP3025358 A1 EP 3025358A1 EP 14729227 A EP14729227 A EP 14729227A EP 3025358 A1 EP3025358 A1 EP 3025358A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide
- housing
- face
- adjusting
- axis
- 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
Links
- 239000013598 vector Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract 2
- 238000011161 development Methods 0.000 description 8
- 230000018109 developmental process Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
-
- 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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/14—Tappets; Push rods
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1638—Armatures not entering the winding
- H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
- F01L2009/2125—Shaft and armature construction
-
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
- F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
-
- 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
- F01L2820/03—Auxiliary actuators
- F01L2820/031—Electromagnets
Definitions
- Electromagnetic actuating devices are known from the prior art, which find particular and advantageous as a camshaft adjusting devices for an internal combustion engine application.
- Such a presumed as generic device discloses WO 2008/1551 19 A1 of the applicant, in which the electromagnetic actuator in the form of a multiple actuator comprises a plurality of parallel guided, driven by respective anchor units ram devices, which according to a respective Setting position can engage with a Verstellnut the camshaft adjustment.
- FIGS. 2 and 3 illustrate the starting situation for the present invention in the form of a further development of the technology known from WO 2008/1551 19, wherein FIG. 2 shows a double actuator in the form of a pair accommodated in a (here cylindrical) housing 10 each of coil units 12 enclosed stationary core elements 14, 16 shows, against each of which armature units 18 and 20 are movable in parallel to a housing center axis 22 movable.
- this drive is effected by a repulsive force generated by the coil units 12 with respective activation on driver sections 24 and 26 of the respective anchor units 18 and 20, these driver sections having axially magnetized permanent magnet disks; for further explanation, reference is also made to the generic, previously published WO 2008/1551 19 in this respect.
- elongated tappel-like armature guide portions 28 and 30 are guided axially movable in a housing guide portion and allow the opposite the guide portions 28, 30 widened drivers 24 and 26 respectively there eccentrically seated and magnetically adhering plunger units 34 and 36 can lead out of the guide housing portion 32.
- engagement ends 38 and 40 of the plungers 34, 36 then engage in an extended engagement state in engagement with an associated camshaft adjustment cam and thus effect the adjustment of the engine functionality in an otherwise known manner by the adjustment groove with the plunger end engaging therein forces an axial movement of an associated cam adjusting shaft.
- FIG. 7 shows three positions of this engaging plunger, designated by reference numeral 50 (for the beginning of engagement), 52 (for a point of engagement and movement in which significant forces are applied by the plunger end into the groove 42 and thus transmitted to the shaft) and 54, which so far marks an end point of the movement, in which typically (by suitable Nutauspar, such as raising the groove bottom, the plunger is returned from its extended to an inserted position, approximately in the position of right-hand plunger 36 of Fig. 2).
- reference numeral 50 for the beginning of engagement
- 52 for a point of engagement and movement in which significant forces are applied by the plunger end into the groove 42 and thus transmitted to the shaft
- 54 which so far marks an end point of the movement, in which typically (by suitable Nutausmony, such as raising the groove bottom, the plunger is returned from its extended to an inserted position, approximately in the position of right-hand plunger 36 of Fig. 2).
- FIG. 8 illustrates by the gray arrow 58 a resulting from this behavior of the plunger problem, especially regarding a torque on the housing portion 32 and thus the connection of the housing portion 32 to the surrounding housing 10; 4, in that, according to the exemplary embodiment shown, a pair of plunger units (34 or 36 in FIGS. 2, 3), which in the end-side views of FIGS 4 are connected by a symmetry axis 60 as area bisecting line (both an end face 62 of the housing section 32 and a surrounding end face 64 of the housing 10), the discussed force input, visualized as arrow 58, generates a torque on the housing section 32 relative to the surrounding housing 10.
- an offset is provided as distance or distance in the end face or faces around which the at least two guide openings (guide bores) for leading out the ram units (or their engagement ends) are offset (removed) from the associated area center.
- this offset is dimensioned according to an advantageous angle of attack of the lateral force vector (caused by the groove) on the respective ram end in the range between 5 and 40 °, preferably between 10 and 30 °, and more preferably between 10 and 20 °. so that in this way then the force vector through the (respective) center of the surface, so the respective center of area or centroid and thus in this lateral force entry no mechanically adverse torque more on the housing guide portion (relative to the armature housing portion) acts.
- the advantage is achieved that especially in a long-term continuous operation with a variety of groove interventions no additional burden of this critical connection point arises.
- the guide end face ie the end face of the guide housing section
- the inventive offset is effective for the housing end face to neutralize the adverse torque load of the housing connection between the (anchor) housing and the housing guide portion.
- a dimensioning or design rule is specified for the offset according to the invention.
- offset v bx tan, where b is half the distance between the guide openings (ge). duration: whose centers) corresponds.
- a respective ram unit can rotate relative to the armature unit, so that in this respect too (potentially for a lifetime or life-time damaging) torque absorption is prevented.
- a respective ram unit can rotate relative to the armature unit, so that in this respect too (potentially for a lifetime or life-time damaging) torque absorption is prevented.
- the ram which is typically made of a metal material, can be designed to be wear-resistant, for example by (local) hardening at the engagement end; additionally or alternatively, it is possible to carry along the elongate ram unit along its direction of extension a plurality of (typically fixed and non-detachably interconnected) different material sections in such a way that a desired increased wear resistance is realized by correspondingly hard and optimized for this purpose materials.
- the subject matter of DE 20 2012 104 122 of the Applicant in particular with regard to the configuration of the engagement end of the plunger unit, the associated production methods and material parameters, is included in the present application as belonging to the invention.
- the inventively claimed system provides the electromagnetic actuator according to the invention in relation to the motor vehicle unit, specifically in that the electromagnetic actuator is claimed in accordance with the main claim in cooperation with an adjusting groove having, axially displaceably mounted adjustment axis.
- this is so positioned for actuation by engagement with the engagement end relative to the actuator that a force vector applied in an engaged state from the adjustment groove to the engagement end extends (in projection) through the centroid of the housing face, in other words Groove geometry with the given angle for the force vector and / or a distance between see two adjacent plunger units in the end face is arranged so that according to the invention no torque acts on the housing guide portion.
- the present invention achieves a significant mechanical improvement of the generic art, such that evenly displacing at least one of the ram units out of the face (s) along at least one axial dimension results in significant torque reduction (down to torque neutralization) through the cam can be achieved laterally on the respective plunger and thus on the housing connection between the housing guide portion and (surrounding) armature housing torque acting.
- FIG. 3 shows an end view of the central guide end face and the surrounding housing end face of the embodiment of FIG. 2 (in so far II-II, the section line for the longitudinal sectional view of Figure 2 indicates).
- FIG. 9 is a detailed view of the front view of FIG. 1
- FIG. 1 shows in a schematic manner and analogous to the representation of the (self-selected) prior art shown in FIG. 4, the realization of the invention on the concrete embodiment of the double actuator, as described in FIGS. 2 and 3 with structural details.
- the details shown in the figures for execution apply equally, and in particular, taking into account the offset v to be discussed in detail below, the realization form of FIG. 1 or FIG. 9 as an exemplary embodiment of FIG Invention with recourse to the structural elements of Fig. 2, 3 can be realized.
- Figure 1 shows how engagement ends 38 'and 40', respectively, are displaced out of center of area 66 by an offset v along an axis of symmetry 80, so as to be analogous to engagement in groove 42 ( Figures 5 to 8).
- generated lateral force vector 58 now passes through this center 66, according to this force (for lack of lever arm) no torque on the housing 32 is brought.
- the present invention is not limited to the embodiment shown, nor to the number of (only) two ram units, nor to the housing configuration shown. Rather, it is within the scope of the invention to provide more than two ram units, the dimensioning according to the invention then applies in particular for mutually adjacent of the ram units. Also, the present invention is not limited in realization to the illustrated context of a dual actuator. Rather, any other configurations, including the exact configuration of each associated anchor units whose arrangement in the housing or the like according to a particular application are designed and varied, this also applies to other embodiments of the housing - for example, the housing 32 may be made in several parts.
- the present invention is particularly suitable for the context of use for adjusting a motor functionality of an internal combustion engine, however, the invention is not limited to this purpose, but it is possible in principle and of the invention, also other applications of this optimized technology accessible do.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013108027.8A DE102013108027A1 (de) | 2013-07-26 | 2013-07-26 | Elektromagnetische Stellvorrichtung und System zur Verstellung einer Funktionalität eines Kraftfahrzeugaggregats |
PCT/EP2014/060094 WO2015010803A1 (de) | 2013-07-26 | 2014-05-16 | Elektromagnetische stellvorrichtung und system zur verstellung einer funktionalität eines kraftfahrzeugaggregats |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3025358A1 true EP3025358A1 (de) | 2016-06-01 |
EP3025358B1 EP3025358B1 (de) | 2017-11-08 |
Family
ID=50928059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14729227.0A Active EP3025358B1 (de) | 2013-07-26 | 2014-05-16 | Elektromagnetische stellvorrichtung und system zur verstellung einer funktionalität eines kraftfahrzeugaggregats |
Country Status (5)
Country | Link |
---|---|
US (1) | US9702278B2 (de) |
EP (1) | EP3025358B1 (de) |
CN (1) | CN105359232B (de) |
DE (1) | DE102013108027A1 (de) |
WO (1) | WO2015010803A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015217886A1 (de) * | 2015-09-17 | 2017-03-23 | Thyssenkrupp Ag | Verschiebeelement zum Verschieben eines Nockensegmentes |
JP6370523B2 (ja) | 2016-05-16 | 2018-08-08 | 三菱電機株式会社 | 電磁アクチュエータおよびその製造方法 |
JP6920096B2 (ja) * | 2017-04-27 | 2021-08-18 | 株式会社ミクニ | 電磁アクチュエータ |
DE102017121947A1 (de) * | 2017-09-21 | 2019-03-21 | Kendrion (Villingen) Gmbh | Stellvorrichtung mit einem abgedichteten Führungszylinder |
DE102019105938A1 (de) * | 2019-03-08 | 2020-09-10 | Eto Magnetic Gmbh | Elektromagnetische Stellvorrichtung mit adaptierbarer Stößelanordnung |
US11886055B2 (en) | 2019-12-22 | 2024-01-30 | Mellanox Technologies, Ltd. | Low voltage modulator |
US11855700B2 (en) | 2021-12-16 | 2023-12-26 | Mellanox Technologies, Ltd. | High bandwidth optical modulator |
US11906873B2 (en) | 2022-01-05 | 2024-02-20 | Mellanox Technologies, Ltd. | Serial data conversion redundancy using optical modulators |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE532372C2 (sv) | 2007-03-21 | 2009-12-29 | Lars Haakan Wernersson | Fjädrande infästande arrangemang |
DE102007028600B4 (de) * | 2007-06-19 | 2011-06-22 | ETO MAGNETIC GmbH, 78333 | Elektromagnetische Stellvorrichtung |
DE102008024086A1 (de) * | 2008-05-17 | 2009-11-19 | Daimler Ag | Ventiltriebvorrichtung |
DE202008013654U1 (de) * | 2008-10-17 | 2010-03-04 | Eto Magnetic Gmbh | Elektromagnetische Stellvorrichtung |
DE102009009081A1 (de) | 2009-02-14 | 2010-08-19 | Schaeffler Technologies Gmbh & Co. Kg | Aktuator zur Verstellung eines Schiebenockensystems |
DE102009015486A1 (de) * | 2009-03-28 | 2010-09-30 | Schaeffler Technologies Gmbh & Co. Kg | Elektromagnetischer Aktuator |
DE202009006940U1 (de) * | 2009-04-16 | 2010-09-02 | Eto Magnetic Gmbh | Elektromagnetische Nockenwellen-Verstellvorrichtung |
DE102011003760B4 (de) | 2010-11-29 | 2022-03-24 | Schaeffler Technologies AG & Co. KG | Elektromagnetische Stellvorrichtung |
DE102011050730A1 (de) * | 2011-05-30 | 2012-12-06 | Eto Magnetic Gmbh | Nockenwellenverstellvorrichtung |
EP2587495B1 (de) | 2011-10-26 | 2014-12-10 | Eto Magnetic GmbH | Elektromagnetische Stellvorrichtung |
-
2013
- 2013-07-26 DE DE102013108027.8A patent/DE102013108027A1/de not_active Ceased
-
2014
- 2014-05-16 US US14/902,602 patent/US9702278B2/en active Active
- 2014-05-16 CN CN201480038975.1A patent/CN105359232B/zh active Active
- 2014-05-16 WO PCT/EP2014/060094 patent/WO2015010803A1/de active Application Filing
- 2014-05-16 EP EP14729227.0A patent/EP3025358B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2015010803A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20160186622A1 (en) | 2016-06-30 |
CN105359232B (zh) | 2017-11-28 |
DE102013108027A1 (de) | 2015-01-29 |
WO2015010803A1 (de) | 2015-01-29 |
CN105359232A (zh) | 2016-02-24 |
EP3025358B1 (de) | 2017-11-08 |
US9702278B2 (en) | 2017-07-11 |
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