WO2015090315A1 - Method for determining a reference position of a transmission actuator, preferably for a motor vehicle, and a transmission actuator for a motor vehicle transmission - Google Patents
Method for determining a reference position of a transmission actuator, preferably for a motor vehicle, and a transmission actuator for a motor vehicle transmission Download PDFInfo
- Publication number
- WO2015090315A1 WO2015090315A1 PCT/DE2014/200709 DE2014200709W WO2015090315A1 WO 2015090315 A1 WO2015090315 A1 WO 2015090315A1 DE 2014200709 W DE2014200709 W DE 2014200709W WO 2015090315 A1 WO2015090315 A1 WO 2015090315A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shift
- reference position
- finger
- gate
- actuator
- Prior art date
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
- F16H61/32—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
- 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
- F16H2061/2838—Arrangements with single drive motor for selecting and shifting movements, i.e. one motor used for generating both movements
-
- 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
- F16H2061/2884—Screw-nut devices
-
- 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
- F16H2342/00—Calibrating
- F16H2342/02—Calibrating shift or range movements
Definitions
- the invention relates to a method for determining a reference position of a
- gears are arranged on a first transmission shaft and on a second transmission shaft forming pairs of gears, wherein a gear of a gear pair with the shaft carrying it rotatably connected and wherein the other gear of the gear pair is rotatably disposed with the shaft carrying it.
- the rotatably arranged gear can but by means of a coupling mechanism by means of sliding sleeves with the shaft carrying it form-locking rotatably connected.
- the gearshift of the transmission is effected by means of a gear actuator, which has an actuator at least for selecting the gear ratio and the insertion or the interpretation of the translation stage.
- Gear actuator in the gearbox or gear actuator are moved to end stops. This is possible because a first electric motor for a selection direction, i. the selection of a shift gate, and a second electric motor for the actual switching movement can be used.
- the first electric motor for the select motion can freely travel by turning in one direction an upper lane stop and by turning in the other direction a lower lane stop. This position is stored after determination as a reference position in a control unit.
- a gear actuator which has only one electric motor.
- this electric motor performs the switching operation in a first direction of rotation, ie it moves into a shift gate of the shift rail and moves out of the shift gate with the opposite direction of rotation and then directly executes a selection process for the next gear to be engaged.
- this gear actuator there are no end stops, since the shift finger in the selection process in a continuous movement moves steadily.
- the transition point must be are determined, on which the shift finger passes during the drive out of the shift gate in the dialing.
- the invention is therefore based on the object to provide a method for determining a reference position of a gear actuator, wherein the reference position of
- Gear actuator which is detected by means of an absolute value sensor, can be reliably determined.
- the object is achieved in that the reference position of
- Absolutwertsensors is determined in a referencing, in which the reference position corresponds to a defined shift gate, which engages the shift finger by means of a mechanical Referenzier Anlagen the shift rail, which detects the engagement of the shift finger in the defined shift gate the position of the shift finger corresponding position of the absolute value sensor as the reference position becomes.
- the shift finger is introduced along the mechanical Referenzier Anlagen in the defined shift gate.
- the shift finger which is due to the approximate accuracy of the absolute value of the reference gate defined as the shift gate only approximately exactly opposite, reliably inserted into this defined shift gate, so that the exact position of the shift finger and thus the reference position of the gear actuator is determined.
- the shift finger is moved within the defined shift gate until the shift finger abuts against a wall of the defined shift gate, this stop corresponding to the reference position of the gear actuator. This reference position is accurately detected by an angular position of the absolute angle value and can be used reliably for further control of the gear actuator.
- the reference position of the gear actuator is determined and stored at the end of its production. The reference position must be determined only once and is still a restart of the gear actuator directly to seduction.
- the reference position of the gear actuator is determined adaptively during operation. As a result, aging processes on the shift finger or the shift rail are taken into account and the reference position is adapted to the respective actual mechanical conditions of the transmission actuator.
- the positions of all further shift gates can be determined by adding a predetermined distance to the reference position. Since these distances between the shift gates are known, it is simply possible to calculate all other switching points of the gear actuator.
- a development of the invention relates to a transmission actuator for a motor vehicle transmission, comprising an electric motor which moves a shift finger along a plurality of juxtaposed shift gates of a shift rail in a first rotational direction and inserts the shift finger in a selected shift gate in a second rotational direction.
- a transmission in which an accurate referencing of the starting position of the gear actuator is possible, has a reference gate provided as a shift gate a mechanical Referenzier Anlagen for threading the shift finger on. Since due to the existing inaccuracies of the absolute value sensor, the reference position of the gear actuator can not be determined concretely and the shift finger is only approximately opposite to the serving as Referenziergasse shift gate, which is designed as a geometric feature
- this reference position corresponds to the angle output by the absolute value sensor when the shift finger is inserted in the reference gate.
- a wall of the Referenziergasse as a mechanical Referenzier at least partially on a slope on which the shift finger is feasible.
- the Referenziergasse is formed as a mechanical Referenzier Anlagen wider than the other shift gates, wherein the Referenziergasse in particular is at least twice as wide as the other Druckgassen. Since the shift gates are designed to be relatively narrow in itself, broadening the Referenziergasse allows threading the shift finger in this and thus the exact definition of the reference position.
- the Referenziergasse is as large as the accuracy of the
- Figure 2 a schematic representation of a shift rail of the gear actuator with a shift finger.
- FIG. 1 shows schematically a transmission actuator 1 according to the invention, which is part of a motor vehicle transmission.
- the gear actuator 1 has an electric motor 3 provided with a motor shaft 2, wherein the electric motor 3 or its motor shaft 2 can be driven in each case in the opposite directions of rotation. Further, the gear actuator 1 has a - about its central longitudinal axis 4 rotatable threaded spindle 5 which is rotatably driven by means of the electric motor 3. This threaded spindle 5 is axially fixed.
- a first gear 6 rotatably on or on the motor shaft 2 is arranged. This first gear 6 is engaged with a rotatably on or on the threaded spindle 5 arranged second gear 7 in engagement.
- the gear actuator 1 further comprises a spindle nut 8 drivable by means of the threaded spindle 5.
- This spindle nut 8 sits on the threaded spindle 5 or engages with his or her thread (s) in the thread or in threaded portions of the threaded spindle 5 a.
- the geared actuator 1 comprises a switching shaft (not shown), which extends preferably perpendicular to the threaded spindle 5.
- this shift shaft is rotatably or pivotally and axially movable for selecting.
- a shift finger 9 is arranged, which protrudes radially from this and engages for switching in a shift rail 10.
- the shift rail 10 is intended to be explained schematically with reference to FIG 2.
- the shift rail 10 has in the example given four shift gates 1 1, 12, 13, 14, which have the same width.
- the shift finger 9, whose position is adjusted by an absolute value sensor not shown, engages in setting a gear ratio in one of the shift gates 11, 12, 13, 14 a.
- a referencing operation is carried out.
- the shift finger 9 is moved by the electric motor 3 in the direction of the selected as Referenziergasse shift gate 1 1, taking the position A, which is predetermined by the absolute value sensor.
- the position A of the shift finger 9 corresponds only approximately to the actual position of the selected as Referenziergasse shift gate 1 1.
- the Referenziergasse 1 1 has a lane width which is significantly greater than the width of the further shift gates 12, 13, 14.
- Referenziergasse trained shift gate 11 moves the shift finger 9 to the upper wall 16 of the shift gate 11 (position B), which is stored as a reference position.
- Information from the superimposed selection and switching path makes it possible to make the referencing plausible.
- the proposed homing strategy it is possible to increase the shift gate width by a geometric feature. As a result, even with the use of an insufficient sensor system, a reference position is found, from which all other shift gates can be determined. In this case, the selected as Referenziergasse shift gate 11 can be approached again in certain cases or cyclically to generate a new reference position.
- the plausibility of the referencing is always made possible by the recognition of the shape of the geometric feature.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112014005933.1T DE112014005933A5 (en) | 2013-12-18 | 2014-12-12 | Method for determining a reference position of a transmission actuator, preferably for a motor vehicle, and a transmission actuator for a motor vehicle transmission |
CN201480068685.1A CN105829779B (en) | 2013-12-18 | 2014-12-12 | Determine the method and transmission actuator of the reference position of transmission actuator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013226455.0 | 2013-12-18 | ||
DE102013226455 | 2013-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015090315A1 true WO2015090315A1 (en) | 2015-06-25 |
Family
ID=52354650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2014/200709 WO2015090315A1 (en) | 2013-12-18 | 2014-12-12 | Method for determining a reference position of a transmission actuator, preferably for a motor vehicle, and a transmission actuator for a motor vehicle transmission |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN105829779B (en) |
DE (1) | DE112014005933A5 (en) |
WO (1) | WO2015090315A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003087630A1 (en) * | 2002-04-10 | 2003-10-23 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Gearbox actuation system and method for adjusting a gearbox actuation system |
DE102004038955A1 (en) | 2003-08-16 | 2005-03-10 | Luk Lamellen & Kupplungsbau | Actuator, especially for shifting gearbox, has bidirectionally driven drive shaft, control device with thread profile complementary to drive shaft profile, control element rotating with control device |
EP1719935A2 (en) * | 2005-05-07 | 2006-11-08 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Transmission actuating mechanism for a vehicle transmission, vehicle transmission with such an actuating mechanism and vehicle drive line with such a vehicle transmission |
DE102006030995A1 (en) * | 2005-07-23 | 2007-01-25 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Single drive actor for transmission unit of vehicle, arrangement and method for determination of reference position of selector finger, comprises use of stop element |
DE102007015132A1 (en) * | 2006-04-28 | 2007-10-31 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Shift finger`s position verifying method for use in e.g. parallel manual transmission, involves moving shift finger at edge of lanes, which are formed such that position of finger relative to lanes is verified when finger approaches edge |
JP2010121686A (en) * | 2008-11-18 | 2010-06-03 | Mitsubishi Motors Corp | Initialization device of automatic transmission |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2831634B1 (en) * | 2001-10-31 | 2004-02-27 | Renault | MASQUEATED SELECTION GEARBOX |
EP1519085B1 (en) * | 2003-09-26 | 2006-08-09 | Getrag Ford Transmissions GmbH | Locking mechanism for a manual gearbox |
DE102011086207B4 (en) * | 2010-11-15 | 2021-02-04 | Denso Corporation | SHIFT-BY-WIRE SYSTEM |
-
2014
- 2014-12-12 DE DE112014005933.1T patent/DE112014005933A5/en not_active Withdrawn
- 2014-12-12 WO PCT/DE2014/200709 patent/WO2015090315A1/en active Application Filing
- 2014-12-12 CN CN201480068685.1A patent/CN105829779B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003087630A1 (en) * | 2002-04-10 | 2003-10-23 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Gearbox actuation system and method for adjusting a gearbox actuation system |
DE102004038955A1 (en) | 2003-08-16 | 2005-03-10 | Luk Lamellen & Kupplungsbau | Actuator, especially for shifting gearbox, has bidirectionally driven drive shaft, control device with thread profile complementary to drive shaft profile, control element rotating with control device |
EP1719935A2 (en) * | 2005-05-07 | 2006-11-08 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Transmission actuating mechanism for a vehicle transmission, vehicle transmission with such an actuating mechanism and vehicle drive line with such a vehicle transmission |
DE102006030995A1 (en) * | 2005-07-23 | 2007-01-25 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Single drive actor for transmission unit of vehicle, arrangement and method for determination of reference position of selector finger, comprises use of stop element |
DE102007015132A1 (en) * | 2006-04-28 | 2007-10-31 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Shift finger`s position verifying method for use in e.g. parallel manual transmission, involves moving shift finger at edge of lanes, which are formed such that position of finger relative to lanes is verified when finger approaches edge |
JP2010121686A (en) * | 2008-11-18 | 2010-06-03 | Mitsubishi Motors Corp | Initialization device of automatic transmission |
Also Published As
Publication number | Publication date |
---|---|
DE112014005933A5 (en) | 2016-09-08 |
CN105829779A (en) | 2016-08-03 |
CN105829779B (en) | 2018-09-21 |
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