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1. WO2020114693 - METHOD AND CONTROL UNIT FOR DETERMINING THE TRAVEL RANGE BETWEEN TWO GEAR SHIFT ELEMENT HALVES OF AN INTERLOCKING GEAR SHIFT ELEMENT

Publication Number WO/2020/114693
Publication Date 11.06.2020
International Application No. PCT/EP2019/080143
International Filing Date 05.11.2019
IPC
F16H 61/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within change-speed- or reversing-gearings for conveying rotary motion
04Smoothing ratio shift
F16H 61/12 2010.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within change-speed- or reversing-gearings for conveying rotary motion
12Detecting malfunction or potential malfunction, e.g. fail safe
CPC
F16H 2061/047
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control 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
04Smoothing ratio shift
047by preventing or solving a tooth but situation upon engagement failure due to misalignment of teeth
F16H 2061/1232
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control 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
12Detecting malfunction or potential malfunction, e.g. fail safe
1232Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios
F16H 2061/2823
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control 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
26Generation or transmission of movements for final actuating mechanisms
28with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
2823Controlling actuator force way characteristic, i.e. controlling force or movement depending on the actuator position, e.g. for adapting force to synchronisation and engagement of gear clutch
F16H 3/66
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
3Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
44using gears having orbital motion
62Gearings having three or more central gears
66composed of a number of gear trains without drive passing from one train to another
F16H 61/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control 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
04Smoothing ratio shift
F16H 61/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control 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
12Detecting malfunction or potential malfunction, e.g. fail safe
Applicants
  • ZF FRIEDRICHSHAFEN AG [DE]/[DE]
Inventors
  • ZERLAUT, Daniel
  • JEHLE, Martina
Priority Data
10 2018 220 869.703.12.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN UND STEUERGERÄT ZUM ERMITTELN EINES STELLWEGBEREICHES ZWISCHEN ZWEI SCHALTELEMENTHÄLFTEN EINES FORMSCHLÜSSIGEN SCHALTELEMENTES
(EN) METHOD AND CONTROL UNIT FOR DETERMINING THE TRAVEL RANGE BETWEEN TWO GEAR SHIFT ELEMENT HALVES OF AN INTERLOCKING GEAR SHIFT ELEMENT
(FR) PROCÉDÉ ET APPAREIL DE COMMANDE PERMETTANT DE DÉTERMINER UNE PLAGE DE COURSES DE RÉGLAGE ENTRE DEUX MOITIÉS D'ÉLÉMENT DE COMMUTATION D'UN ÉLÉMENT DE COMMUTATION À COMPLÉMENTARITÉ DE FORME
Abstract
(DE)
Es wird ein Verfahren zum Ermitteln eines Stellwegbereiches zwischen zwei Schaltelementhälften eines formschlüssigen Schaltelementes (A, F) während eines Schließens des Schaltelementes (A, F) und bei Vorliegen einer Zahn-auf-ZahnstelIung zwischen den beiden Schaltelementhälften beschrieben. Eine Stellbewegung der wenigstens einen bewegbaren Schaltelementhälfte in Bezug auf die andere Schaltelementhälfte wird mittels eines Sensors überwacht. Es wird eine Zahn-auf-Zahnstellung erkannt, wenn über den Sensor innerhalb eines Stellwegbereiches der wenigstens einen bewegbaren Schaltelementhälfte zwischen einem geöffneten Zustand und einem geschlossenen Zustand des Schaltelementes ermittelt wird, dass die Stellbewegung der bewegbaren Schaltelementhälfte in Schließrichtung null ist, ein Verhältnis zwischen einer am Schaltelement anliegenden Schließkraft und einer an den Schaltelementhälften angreifenden Radialkraft innerhalb eines Wertebereiches liegt, der eine Zahn-auf-Zahn Stellung begünstigt und über den Sensor nach dem Reduzieren der Schließkraft und/oder nach einem Erhöhen des anliegenden Drehmomentes eine Stellbewegung der Schaltelementhälfte in Schließrichtung erkannt wird.
(EN)
The invention relates to a method for determining the travel range between two gear shift element halves of an interlocking gear shift element (A, F) during engagement of the gear shift element (A, F) and when there is a tooth butt condition between the two gear shift element halves. An actuation movement of the at least one movable gear shift element half in relation to the other gear shift element half is monitored by means of a sensor. A tooth butt condition is detected when it is determined via the sensor within a travel range of the at least one movable gear shift element half between a disengaged state and an engaged state of the gear shift element that the actuation movement of the movable gear shift element half in the engagement direction is zero, the ratio between an engagement force acting on the gear shift element and a radial force acting on the gear shift element halves is within a value range which favours a tooth butt condition, and an actuation movement of the gear shift element half in the engagement direction is detected via the sensor after the engagement force is reduced and/or the applied torque is increased.
(FR)
L'invention concerne un procédé de détermination d'une plage de courses de réglage entre deux moitiés d'élément de commutation d'un élément de commutation (A, F) à complémentarité de forme lors d'une fermeture de l'élément de commutation (A, F) et en présence d'un positionnement dent sur dent entre les deux moitiés d'élément de commutation. Un mouvement de réglage de l'au moins une moitié d'élément de commutation mobile par rapport à l'autre moitié d'élément de commutation est surveillé au moyen d'un capteur. Un positionnement dent sur dent est détecté lorsque, au moyen du capteur, dans une plage de courses de réglage de l'au moins une moitié d'élément de commutation mobile entre un état ouvert et un état fermé de l'élément de commutation, il est déterminé que le mouvement de réglage de la moitié d'élément de commutation mobile dans le sens de fermeture est nul, un rapport entre une force de fermeture appliquée à l'élément de commutation et une force radiale agissant sur les moitiés d'élément de commutation se situent dans une plage de valeurs, laquelle favorise un positionnement dent sur dent et, au moyen du capteur, après une réduction de la force de fermeture et/ou après une augmentation du couple appliqué, un mouvement de réglage de la moitié d'élément de commutation dans le sens de fermeture est détecte.
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