WO2018006955A1 - Ensemble de changement de vitesse pour transmission de véhicule automatique - Google Patents

Ensemble de changement de vitesse pour transmission de véhicule automatique Download PDF

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Publication number
WO2018006955A1
WO2018006955A1 PCT/EP2016/066017 EP2016066017W WO2018006955A1 WO 2018006955 A1 WO2018006955 A1 WO 2018006955A1 EP 2016066017 W EP2016066017 W EP 2016066017W WO 2018006955 A1 WO2018006955 A1 WO 2018006955A1
Authority
WO
WIPO (PCT)
Prior art keywords
shift gate
straight
gate section
shift
straight shift
Prior art date
Application number
PCT/EP2016/066017
Other languages
English (en)
Inventor
Robert Fredriksson
Original Assignee
Kongsberg Automotive Ab
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 Kongsberg Automotive Ab filed Critical Kongsberg Automotive Ab
Priority to PCT/EP2016/066017 priority Critical patent/WO2018006955A1/fr
Publication of WO2018006955A1 publication Critical patent/WO2018006955A1/fr

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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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/08—Range selector apparatus
    • F16H59/12—Range selector apparatus comprising push button 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/08—Range selector apparatus
    • F16H59/10—Range selector apparatus comprising levers
    • F16H59/105—Range selector apparatus comprising levers consisting of electrical switches or sensors
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H2059/0295—Selector apparatus with mechanisms to return lever to neutral or datum position, e.g. by return springs

Definitions

  • the present invention relates to a shifter assembly for an au ⁇ tomatic vehicle transmission having a monostable shifter move ⁇ able from the monostable home position along a shift gate com ⁇ prising several subsequent straight sections along which the home position and transmission mode select positions reverse drive R, neutral N, and forward drive D are disposed.
  • a shifter assembly of this kind is known from DE 10 2006 059 992 Al .
  • the shifter assembly comprises a monostable shift lev ⁇ er which, after being moved to a mode select position to select a particular mode of the transmission, automatically re ⁇ turns to a central or home position.
  • the shift lever can be moved from the home position in a forward direction and in an opposite rearward direction (along the longitudinal direction of the vehicle) . Starting from the home position the shift lever is shifted along a first straight shift gate section to mode select position N, and from there along a second straight shift gate section which is collinear with the first straight shift gate section to mode select position D.
  • the shift lever In the opposite direction the shift lever can be moved in rearward direction along a third straight section to mode select position N, and from there along a fourth straight section to mode select po ⁇ sition R, wherein the third and fourth straight shift gate sections are collinear.
  • the shift pattern of this shift gate is disadvantageous because there is a risk of skipping or overstepping mode elect position N.
  • the driver intends to move the shift lever from the home position to the mode select position N along the first straight shift gate section there is a risk that he or she skips or oversteps this mode select position N and continues to move the shifter in the same di ⁇ rection along the second straight shift gate section in the same direction towards mode select position D in a single con- tinuous movement step. Therefore, there is a risk that the driver unintentionally selects D or R when he was actually in ⁇ tending to move the shift lever to mode select position N.
  • Such shifter assemblies are employed in shift-by-wire shifters in which the mode select position to which the shifter is moved is sensed by a sensor arrangement and a corresponding signal is sent by a control unit to the transmission where it triggers an actuator to bring the transmission into the state corresponding to the sensed mode select position.
  • a further shifter assembly of the above described kind is dis ⁇ closed in US 2014/0013889 Al .
  • This shifter assembly includes a shift lever that is movable in a shift gate which comprises two straight line portions (extending in longitudinal direc ⁇ tion of the vehicle) which are offset relative to each other in transverse direction, wherein a transversely extending (select direction) shift gate section is connecting the two straight line portions of the shift gate.
  • the shift lever is a monostable lever which automatically returns to a home posi ⁇ tion located at the end of one of the straight line portions of the shift gate where this straight line portion of the shift gate is merging with the transversely extending shift gate section leading to the second straight line shift gate portion.
  • the shift lever is movable in the first straight line portion along a first straight shift gate section to mode select position N and from there further along a collinear second straight shift gate section to mode select position D.
  • the shift lever In order to shift to mode select position R the shift lever first has to be transversely moved from the home position in the first straight line shift gate portion to the second straight line shift gate portion, whereafter it is longitudinally moved along a third straight shift gate section to mode select position N and from there further in longitudinal direction along a fourth straight shift gate section collinear with the third shift gate section to mode select position R.
  • the shift pattern of this shifter assembly is also problematic as regards operational safety.
  • a first and a second straight shift gate section which is collinear with the first shift gate section extend in opposite directions from the home position of the monostable shift lever.
  • a mode select position N is disposed at the end of the first and second straight shift gate sections remote from the home position.
  • the first straight shift gate section is connected to a third straight shift gate section which is not collinear with the first shift gate section.
  • the se ⁇ cond straight shift gate section is at its end remote from the home position connected to a fourth straight shift gate sec ⁇ tion that is not collinear with the second straight shift gate section.
  • At the end of the fourth straight shift gate section remote from the second straight shift gate section mode select position R is disposed at the end of the fourth straight shift gate section remote from the second straight shift gate section mode select position R is disposed.
  • the shifter assembly with this shift pattern is intuitively very clear and safe in operation.
  • the shift pattern of shift lever movements to any of the available transmission states that can be selected by the shift lever is independent of the current mode selected for the transmission.
  • the driver can shift to N by shifting the shift lever either along the first straight shift gate section to its end or in the opposite direction along the second straight shift gate section to its end. If the driver wants to shift to mode D the shift lever has to be moved from home po ⁇ sition along the first straight shift gate section to its end, and thereafter in a different direction along the second straight shift gate section to its end to reach D.
  • the shift lever has to be moved from the home position along the second straight shift gate section to its end, thereby passing mode select po ⁇ sition N, and thereafter in a different direction along the fourth straight shift gate section to its end to reach mode select position R.
  • the shift lever can only be moved past mode select position N if the driver changes the direction of movement of the shift lever at the end of the first or second straight shift gate section into the direction of the third or fourth straight shifting gate section, respec ⁇ tively, to move the shift lever on to mode select position D or R, respectively. Due to the required change of direction of movement, because the first and second as well as third and fourth straight shift gate sections are not collinear, it is very unlikely that the mode select position N could be skipped or overstepped and the shift lever be moved on to D or R with ⁇ out intention. Therefore, the operational safety of the shift ⁇ er assembly comprising this shift pattern is considerably im ⁇ proved .
  • the shifter assembly can be operated by a driver very easily and in an intuitively clear manner. After the shifter assembly has been brought to a particular state by moving the shift lever to the particular mode select position, the shift lever returns to the monostable home position. Therefore, independently of the fact in which state the trans ⁇ mission currently is, the movement pattern of the shift lever to N, D or R is always the same, namely to N by a linear move ⁇ ment to the end of the first or second straight shift gate section, to D by moving the shift lever from the home position along the first straight shift gate section, changing direc ⁇ tion into the third straight shift gate section direction and moving it to the end of the third straight shift gate section to D; and to R by moving the shift lever from home position along the second straight gearshift section to its end, and then further changing direction into the fourth straight shift gate section and moving the shift lever to its end to R. Therefore, the movement pattern to any of the mode select po- sitions N, R, and D is always the same, whereas in current shifter assemblies with multi-stable shift
  • the third straight shift gate sec ⁇ tion extends perpendicularly to the first straight shift gate section
  • the fourth straight shift gate section extends perpendicularly to the second straight shift gate section.
  • the third straight shift gate section extends parallel to, but in opposite direction relative to the fourth straight shift gate section.
  • a shifter assembly with such shift pattern allows to distinguish between shifting to D and R in an intuitively clear manner. This is in particular so if the shifter assembly is according to a further preferred embodiment arranged to be mounted in the vehi ⁇ cle such that the first and second straight shift gate sec ⁇ tions extend in transverse direction and in that the third and fourth straight shift gate sections extend in longitudinal di ⁇ rection of the vehicle, and according to further preferred em ⁇ bodiment the third straight gear shift section extends in for ⁇ ward direction, and the fourth straight gear shift section extends in rearward direction of the vehicle.
  • the shift assembly comprises a sepa ⁇ rate input element for bringing the transmission to parking mode state P. If the transmission is brought to the parking mode state P by actuating the separate input element, the driver can shift to any of the modes R, N, and D by operating the shift lever as described above to move it along the shift pattern defined in the claims to the desired mode select posi ⁇ tion R, N or D.
  • Fig. 1 is a schematical perspective view of a shifter assem ⁇ bly;
  • Fig. 2 shows a schematic plan view of the shift pattern of the shifter assembly.
  • the shifter assembly 10 is for example arranged on a console located between a driver seat and a passenger seat of a vehicle.
  • the shifter assembly 1 compris ⁇ es a shift lever 8 and a housing 12 which has a panel surface 14 and which includes a shift gate 20 formed corresponding to the shift pattern of the shift lever 8.
  • the shift lever 8 is mounted in the housing to be moveable along the shift pattern corresponding to the shift gate 20.
  • the shift pattern includes a monostable home position H, two neutral select positions N, forward drive se ⁇ lect position D, and rearward drive select position R.
  • the shift lever assembly includes a mechanism that automatically returns shift lever 8 to home position H from any of the mode select positions N, R, D if the driver releases the shift lev ⁇ er at any of said mode select positions.
  • the shift pattern comprises the monostable home position in the center. From this home posi ⁇ tion H a first straight gear shift section 1 extends, in this example to the right hand side, whereas a second straight shift gate section 2 extends in opposite direction from home position H, in this example to the left hand side.
  • first straight shift gate section 1 remote from home position H neutral select position N is disposed.
  • second straight shift gate sec ⁇ tion 2 remote from home position H also a neutral select posi ⁇ tion N is disposed.
  • the end of the first straight shifting gate section 1 remote from home position H is connected to a third straight shift gate section 3 which extends perpendicu ⁇ lar to the first shift gate section 1.
  • drive select position D is disposed.
  • the wording that the end of the first straight shifting gate section remote is connected to a third straight shift gate section is intended to mean that there may also be a curved transitional shift gate portion between first and third straight shift gate sec ⁇ tions connecting these sections.
  • the end of the second straight shifting gate sec ⁇ tion 2 remote from home position H is connected to a fourth straight shift gate section 4 which extends perpendicularly to the second straight shift gate section 2.
  • a fourth straight shift gate section 4 which extends perpendicularly to the second straight shift gate section 2.
  • reverse select position R is disposed.
  • the driver stops the vehicle and wants to shift to R.
  • the shift lever 8 moves from monostable home posi ⁇ tion H along the second straight shift gate section 2 to the end thereof, and from there in a direction perpendicular to the second straight shift gate section 2 to and along a fourth straight shift gate section 4 to the end thereof to reach re ⁇ verse select position R.
  • the driver releases the shift lever 12 it returns to the monostable home position H and the transmission remains in R.
  • the shift lever passes mode select position N on its way.
  • the control unit can be arranged such that a signal is generated when the shift lever passes the intermediate state N to bring the transmission to N, or can be arranged such that the model select position signal is sent only based on the sensor information when the shift lever is released and starts to return to home position H; in this case no intermediate control signal to bring the transmission to N would be gener ⁇ ated when the shift lever is moved from R to D or from D to R.
  • the shifter assembly according to the present invention can be operated in an intuitively clear manner and in a very safe manner.
  • the operation is very safe because it is virtually impossible that a driver intending to move the shift lever to a neutral select position N is, when the shift lever reaches neutral select position N at the end of the first straight shift gate section 1, inadvertently or accidentally changes direction and moves the shift lever fur ⁇ ther along the third straight shift gate section 3.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Abstract

La présente invention concerne un ensemble de changement de vitesse pour une transmission automatique de véhicule comportant un levier de vitesse monostable (8) mobile depuis la position de repos monostable le long d'une porte de changement de vitesse (20) comprenant plusieurs sections rectilignes successives (1, 2, 3, 4) le long de laquelle sont disposés la position de repos et les positions de sélection de mode de transmission en marche arrière R, neutre N et en marche avant D sont disposées, caractérisé en ce que, depuis la position de repos, une première (1) et une deuxième section de porte de changement de vitesse rectiligne (2) s'étendent, qui sont colinéaires mais dirigées dans des directions opposées et ont chacune, à l'extrémité distante de la position de repos, une position de sélection de mode N, et en ce que l'extrémité distante de la première section de porte de changement de vitesse rectiligne (1) est reliée à une troisième section de porte de changement de vitesse rectiligne (3) qui n'est pas colinéaire avec la première section de porte de changement de vitesse rectiligne (1) et qui a une position de sélection de mode D à l'extrémité distante de la première section de porte de changement de vitesse rectiligne , et en ce que l'extrémité distante de la deuxième section de porte de changement de vitesse rectiligne (2) est reliée à une quatrième section de porte de changement de vitesse rectiligne (4) qui n'est pas colinéaire avec la deuxième section de porte de changement de vitesse rectiligne (2) et qui a une position de sélection de mode R à l'extrémité distante de la deuxième section de porte de décalage rectiligne (2).
PCT/EP2016/066017 2016-07-06 2016-07-06 Ensemble de changement de vitesse pour transmission de véhicule automatique WO2018006955A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/066017 WO2018006955A1 (fr) 2016-07-06 2016-07-06 Ensemble de changement de vitesse pour transmission de véhicule automatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/066017 WO2018006955A1 (fr) 2016-07-06 2016-07-06 Ensemble de changement de vitesse pour transmission de véhicule automatique

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WO2018006955A1 true WO2018006955A1 (fr) 2018-01-11

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003031845A1 (fr) * 2001-10-05 2003-04-17 ZF Lemförder Metallwaren AG Emetteur de signaux concu pour regler les etats de fonctionnement d'un dispositif de commutation automatique
DE102005041569A1 (de) * 2004-09-02 2006-03-23 Honda Motor Co., Ltd. Gangschaltungsvorrichtung und Verfahren zum Steuern derselben
DE102006008816A1 (de) * 2006-02-25 2007-08-30 Audi Ag Schalteinrichtung für ein elektronisch geschaltetes Getriebe eines Kraftfahrzeugs
US20140013889A1 (en) * 2012-07-11 2014-01-16 Kabushiki Kaisha Tokai Rika Denki Seisakusho Shift device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003031845A1 (fr) * 2001-10-05 2003-04-17 ZF Lemförder Metallwaren AG Emetteur de signaux concu pour regler les etats de fonctionnement d'un dispositif de commutation automatique
DE102005041569A1 (de) * 2004-09-02 2006-03-23 Honda Motor Co., Ltd. Gangschaltungsvorrichtung und Verfahren zum Steuern derselben
DE102006008816A1 (de) * 2006-02-25 2007-08-30 Audi Ag Schalteinrichtung für ein elektronisch geschaltetes Getriebe eines Kraftfahrzeugs
US20140013889A1 (en) * 2012-07-11 2014-01-16 Kabushiki Kaisha Tokai Rika Denki Seisakusho Shift device

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