WO2018228782A1 - Ensemble actionneur et procédé destiné à déterminer la position de commutation d'un élément de commutation à actionnement électromagnétique comportant plusieurs positions de commutation. - Google Patents

Ensemble actionneur et procédé destiné à déterminer la position de commutation d'un élément de commutation à actionnement électromagnétique comportant plusieurs positions de commutation. Download PDF

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Publication number
WO2018228782A1
WO2018228782A1 PCT/EP2018/063391 EP2018063391W WO2018228782A1 WO 2018228782 A1 WO2018228782 A1 WO 2018228782A1 EP 2018063391 W EP2018063391 W EP 2018063391W WO 2018228782 A1 WO2018228782 A1 WO 2018228782A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching
switching element
actuator
current
shift
Prior art date
Application number
PCT/EP2018/063391
Other languages
German (de)
English (en)
Inventor
Stefan Brantweiner
Mario Grgic
Daniel Lindvai-Soos
Wolfgang Schweiger
Original Assignee
Magna powertrain gmbh & co kg
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 Magna powertrain gmbh & co kg filed Critical Magna powertrain gmbh & co kg
Priority to CN201880039080.8A priority Critical patent/CN110741185B/zh
Publication of WO2018228782A1 publication Critical patent/WO2018228782A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/2807—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32—Electric motors actuators or related electrical control means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/28—Final output mechanisms therefor; Actuating means for the final output mechanisms two or more final actuating mechanisms moving the same final output mechanism
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/28—Final output mechanisms therefor; Actuating means for the final output mechanisms two or more final actuating mechanisms moving the same final output mechanism
    • F16H63/285—Final output mechanisms therefor; Actuating means for the final output mechanisms two or more final actuating mechanisms moving the same final output mechanism with a first final actuating member applying a force to two or more final output members and a second final actuating member locking in position another final output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H2061/2853—Electromagnetic solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H2061/2861—Linear motors

Definitions

  • Actuator arrangement and method for determining the switching position of an electromagnetically actuated switching element having a plurality of switching positions are provided.
  • the invention relates to a method for determining the switching position of electromagnetically operated switching elements and an actuator assembly, which is adapted for this method.
  • a similar shift device for transmissions with a shift element is disclosed in EP 1 710 478 A1.
  • the switching element described therein is arranged displaceably in an axial direction and can assume at least a first and a second displacement position.
  • the switching device further comprises a permanent magnet which is magnetized in the axial direction and which either with the switching element is arranged or fixed in relation to the transmission, a first and a second electromagnet, which are arranged offset in the axial direction to each other and which, when the permanent magnet is connected to the switching element, are arranged stationary with respect to the transmission or when the permanent magnet is arranged stationary in the transmission, are connected to the switching element, wherein the two electromagnets are energized so that their magnetic fields are directed opposite to each other.
  • switching element position sensors In order to determine the switching position in these switching devices are arranged on the switching element position sensors, which can determine the position of the switching element. These additional elements must be installed and wired.
  • the object of the present invention is to provide a switching arrangement in which the positions of the switching elements can be determined with a simple construction. This object is achieved by an actuator arrangement according to claim 1 and by a method according to claim 5.
  • Such an actuator arrangement provides a mechanically simple and low-complexity system that reduces costs and is largely insensitive to tolerance and temperature influences by eliminating the need for additional position sensors (disconnect plug, omit wiring, reduced ECU requirements). Furthermore, a simple adaptability to systems with two or three switching positions (same components for decoupling (G1 / N) and decoupling with mode shift (G1 / N / G2)).
  • the non-contacted contact point of the switching element is moved in the end position behind the stroke of not activated for the displacement of the switching element actuating element. It can thereby be achieved that the second shift actuator can be used as a mechanical lock. In addition, a second verification
  • the switching element is preferably Y-shaped and rotates about a pivot pole which is arranged in a central region of the switching element. This is an efficient embodiment of the switching element.
  • the contact points of the switching element can be designed as freely rotatable rollers. As a result, unnecessary wear is avoided by the contact with the corresponding Heidelbergaktuatoren.
  • An inventive method for determining a position of a switching element using a previously mentioned actuator assembly comprises the steps of setting a desired end position of the switching element, performing the lifting movement by activating the corresponding first switching actuator, measuring a current on the switching actuator and / or activating the second switching actuator and measuring a Current at the second switching actuator and comparing the measured current with a stored characteristic curve wherein the characteristic of the measured current is compared with a stored characteristic and thereby determined whether the switching element is in the intended end position.
  • Such a method provides a mechanically simple, low complexity system that eliminates the cost of manufacturing by eliminating additional position sensors (plug removal, de-wiring, reduced ECU requirements). Furthermore, especially when using the measurements of both switching actuators, the reliability of the statement of the end position of the switching element is increased.
  • shift actuators as the first and second shift actuators is for the purpose of distinction only in the order that one actuator is actuated first and then the other. In principle, both the shift actuator for the 1. Gear and also the shift actuator for the 2nd gear, the “first” or “second” shift actuator, depending on which gear is to be engaged.
  • the current strength of the activated for moving the switching element is less than the current strength of the activated for moving the switching element. This increases continue the security with which a statement about the final position of the switching element can be made.
  • Figure 1 shows the switching arrangement according to the invention, in which the switching element is in a neutral position
  • Figure 2 shows the switching arrangement according to the invention, in which the switching element is in a blocked position
  • Figure 3 shows the switching arrangement according to the invention, in which the switching element is in a first end position
  • Figure 4 shows the switching arrangement according to the invention, in which the switching element is in the first end position and is blocked by the second actuating element;
  • Figure 5 shows the position of Figure 4 with retracted first actuator
  • FIG. 6 shows a current characteristic (qualitative current-time profile) with direct switching through from the neutral position into a first end position
  • FIG. 7 shows a current characteristic in the event of blockage (tooth-tooth position) when switched to a first end position
  • FIG. 8 shows a current characteristic of the cut-off current.
  • FIG. 1 shows a switching arrangement 1 according to the invention in a neutral position.
  • the switching arrangement 1 shown has a central switching element 4, which is preferably designed as a Y-shaped shift fork.
  • the shift fork has a housing-fixed center of rotation 6 in the middle, that is, in a region in which meet the Y-arms of the shift fork.
  • Of the lower arm of the shift fork is connected to an axially displaceable element 5, so that this element 5 is displaced by the actuation of the shift fork 4.
  • the axially displaceable element 5 is a sliding sleeve 5 which allows a position for connection to two different sprockets (G1, G2) and a neutral position (N) in which no sprocket is connected.
  • the upper two arms of the shift fork have a contact point, which are preferably formed as rollers.
  • the two upper arms of the shift fork 4 with the contact points 14 extend in opposite directions.
  • the shift sleeve 5 moves to the left when the first shift actuator is extended and pushes the arms of the shift element to the right.
  • the strokes SA and SB are thus related to the path x, which covers the shift sleeve together.
  • the shift actuators 2, 3 are also preferably arranged opposite each other and have linearly displaceable actuating elements, which in the present embodiment each comprise a movable anchor rod 12 and a pressure piece 13 connected thereto. The pressure piece 13 is then pressed when moving to the contact point 14 and moves the switching element.
  • the shift actuators 2, 3 comprise a main body in which the electromagnetic components (coil, permanent magnet) are arranged. Such a shift actuator is also referred to as a solenoid. It is also theoretically possible not to move the actuator linearly, but for example with an electric motor, so that the actuating element is pivoted and does not move linearly.
  • the switching actuators 2, 3 are connected via a control line 1 1 with a control device 10 which supplies the switching actuators 2, 3 with power and thus controls the circuit in a respective end position.
  • a control device 10 which supplies the switching actuators 2, 3 with power and thus controls the circuit in a respective end position.
  • the control device is set up not only to supply the switching actuators with power, but also to measure them.
  • the switching element end position is detected by means of a corresponding evaluation logic.
  • the evaluation logic takes into account typical characteristic parameters from the on and off current characteristics of the electromagnetic coils, whereby a clear determination of the armature stroke position becomes possible. Additional position sensors for detecting the switching element position can thus be omitted.
  • the neutral position is set in FIG.
  • This neutral position can be adjusted with the shift actuators, but can also be realized as a kind of standard position with a return spring, so that the switching element moves by a mechanical bias in the neutral position when no other forces act or obstacles in the way.
  • the fail-safe behavior can be determined by the constructive design of the solenoids for the desired behavior in the de-energized state (normally open / normally closed / stay silent).
  • the neutral position is defined in the exemplary embodiment via a spring-centered center position.
  • the determination of the position of the switching element takes place by measuring the coil current profile of the switching actuators and a comparison with stored in the control unit reference values. This results in a feedback, whether the end position G1 or G2 has actually been reached.
  • the evaluation logic includes several algorithms for the analysis of the turn-on and turn-off current waveforms as follows with reference to the figures 6 to 8 described. The specific current characteristics for the respective construction of an actuator arrangement according to the invention can be determined by the person skilled in the art via simple test runs.
  • FIGS. 6 and 7 show an example of the qualitative course of the inrush current at the magnet coil. If the shift sleeve is in shift position G1 (1st gear, first shift actuator extended), it can be determined via current measurement on the coils of the first shift actuator 2 and second shift actuator 3 whether the shift sleeve has actually reached its end position G1 (1st gear). From the characteristic of a linear magnet characteristic of the coil current signal can be seen that the current drops at the onset of the stroke movement (inflection point W1 in Fig. 6). This is due to the electromagnetically induced voltage (back EMF), evident from the following dL (i d
  • FIG. 8 shows, by way of example, the qualitative current-time profile of the switch-off current via which an additional plausibility check of the armature stroke positions is possible by comparing the inflection points W3 and W4. Furthermore, a plausibility check on the Switching time; depending on the stroke position to be measured results in an associated switching time (current-time curve).
  • the actuator assembly is controlled by the control unit 10 of the shift actuator, which can move the shift sleeve in the desired gear.
  • the first shift actuator (2, 3) which brings the switching element 4 into engagement with the desired gear, is actuated and moves on its stroke.
  • the current flowing through the coil of the first Druckaktuators, during the process of the first Druckaktuators measured and compared with the stored characteristic, so that a statement can be made whether the switching element has reached the end position.
  • the second shift actuator is actuated and, alternatively or additionally, the current is measured and compared with a stored characteristic which was applied to the coil of the second shift actuator.
  • the shift element has reached the end position (for example in FIG.
  • the second shift actuator can be pushed over the shift element (FIG. 4) and the first shift actuator can be retracted.
  • the current is also measured for the return movement and compared with a characteristic in order to obtain a further confirmation for the achievement of the correct end position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

L'invention concerne un ensemble actionneur (1) destiné à la commutation entre au moins deux positions de commutation (G1, G2), comprenant un élément de commutation (4) qui peut être commuté entre les au moins deux positions d'extrémité (G1, G2) et qui présente deux points de contact opposés (14) auxquels l'élément de commutation (4) est actionné pour être déplacé dans la direction d'une position d'extrémité ; un premier et un deuxième actionneur de commutation électromagnétique (2, 3) qui sont disposés chacun sur des côtés opposés de l'élément de commutation (4) et qui déplacent l'élément de commutation (4) dans une position de commutation correspondante après activation. Selon l'invention, les actionneurs de commutation (2, 3) sont munis chacun d'un élément d'actionnement mobile qui se déplace le long d'une course et entre en contact avec l'élément de commutation (4) au niveau du point de contact (14) ; un dispositif de commande (10) qui est relié aux deux actionneurs de commutation (2, 3) et qui est destiné à mesurer et à évaluer un courant au niveau des actionneurs de commutation.
PCT/EP2018/063391 2017-06-12 2018-05-22 Ensemble actionneur et procédé destiné à déterminer la position de commutation d'un élément de commutation à actionnement électromagnétique comportant plusieurs positions de commutation. WO2018228782A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880039080.8A CN110741185B (zh) 2017-06-12 2018-05-22 促动器装置和利用促动器装置确定切换元件位置的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017209889.9 2017-06-12
DE102017209889.9A DE102017209889B4 (de) 2017-06-12 2017-06-12 Schaltanordnung und Verfahren zur Bestimmung der Schaltstellung eines elektromagnetisch betätigten Schaltelements mit mehreren Schaltpositionen

Publications (1)

Publication Number Publication Date
WO2018228782A1 true WO2018228782A1 (fr) 2018-12-20

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ID=62386427

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Application Number Title Priority Date Filing Date
PCT/EP2018/063391 WO2018228782A1 (fr) 2017-06-12 2018-05-22 Ensemble actionneur et procédé destiné à déterminer la position de commutation d'un élément de commutation à actionnement électromagnétique comportant plusieurs positions de commutation.

Country Status (3)

Country Link
CN (1) CN110741185B (fr)
DE (1) DE102017209889B4 (fr)
WO (1) WO2018228782A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939274A1 (de) 1989-11-28 1991-05-29 Getrag Getriebe Zahnrad Synchronisiereinrichtung fuer ein schaltgetriebe
JP2002213606A (ja) * 2001-01-22 2002-07-31 Isuzu Motors Ltd 変速機のシフトアクチュエータ
EP1271012A2 (fr) * 2001-06-29 2003-01-02 Isuzu Motors Limited Dispositif de changement de vitesses
EP1464877A2 (fr) * 2003-03-31 2004-10-06 Isuzu Motors Limited Actionneur de changement de vitesse pour une transmission
EP1710478A1 (fr) 2005-04-09 2006-10-11 Bayerische Motoren Werke Aktiengesellschaft Dispositif de commande pour transmissions avec deux électroaimants et un aimant permanent
WO2017148501A1 (fr) * 2016-02-29 2017-09-08 Gkn Automotive Ltd. Boîte de vitesses manuelle comprenant un ensemble d'actionneurs, procédé de commande de la boîte de vitesses manuelle et entraînement électrique comprenant une boîte de vitesses manuelle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005039263B4 (de) 2005-08-19 2021-07-08 Deere & Company Steuervorrichtung und Verfahren zum Ansteuern eines Aktuators für eine Getriebeschaltstelle
CN101328970B (zh) * 2008-07-08 2011-12-14 奇瑞汽车股份有限公司 汽车电控机械式自动变速器用的换档机构
US8210066B2 (en) * 2009-11-09 2012-07-03 GM Global Technology Operations LLC Electromagnetic synchronizer actuating system
CN102313001A (zh) * 2011-08-30 2012-01-11 广东戈兰玛汽车***有限公司 带电磁控制的选换挡机构的机械式自动变速箱

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939274A1 (de) 1989-11-28 1991-05-29 Getrag Getriebe Zahnrad Synchronisiereinrichtung fuer ein schaltgetriebe
JP2002213606A (ja) * 2001-01-22 2002-07-31 Isuzu Motors Ltd 変速機のシフトアクチュエータ
EP1271012A2 (fr) * 2001-06-29 2003-01-02 Isuzu Motors Limited Dispositif de changement de vitesses
EP1464877A2 (fr) * 2003-03-31 2004-10-06 Isuzu Motors Limited Actionneur de changement de vitesse pour une transmission
EP1710478A1 (fr) 2005-04-09 2006-10-11 Bayerische Motoren Werke Aktiengesellschaft Dispositif de commande pour transmissions avec deux électroaimants et un aimant permanent
WO2017148501A1 (fr) * 2016-02-29 2017-09-08 Gkn Automotive Ltd. Boîte de vitesses manuelle comprenant un ensemble d'actionneurs, procédé de commande de la boîte de vitesses manuelle et entraînement électrique comprenant une boîte de vitesses manuelle

Also Published As

Publication number Publication date
CN110741185A (zh) 2020-01-31
DE102017209889A1 (de) 2018-12-13
CN110741185B (zh) 2021-01-12
DE102017209889B4 (de) 2018-12-27

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