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DE19735844A1 - Commercial vehicle gear selector providing tactile position lock indication - Google Patents

Commercial vehicle gear selector providing tactile position lock indication

Info

Publication number
DE19735844A1
DE19735844A1 DE1997135844 DE19735844A DE19735844A1 DE 19735844 A1 DE19735844 A1 DE 19735844A1 DE 1997135844 DE1997135844 DE 1997135844 DE 19735844 A DE19735844 A DE 19735844A DE 19735844 A1 DE19735844 A1 DE 19735844A1
Authority
DE
Germany
Prior art keywords
detent
clutch
gear
segment
position lock
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.)
Ceased
Application number
DE1997135844
Other languages
German (de)
Inventor
Bernd Doebele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to DE1997135844 priority Critical patent/DE19735844A1/en
Publication of DE19735844A1 publication Critical patent/DE19735844A1/en
Ceased legal-status Critical Current

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
    • 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
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/34—Locking or disabling mechanisms
    • 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
    • F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
    • F16H59/56—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the main clutch
    • 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
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/38—Detents

Landscapes

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

Abstract

The gear selector position lock (1,2) has a locking segment (3). The force exerted on the locking segment may be reduced by pneumatic or hydraulic systems as required, and is dependent upon the clutch position. The position lock is released by a piston-operated pusher using the clutch release pressure, and the clutch position-dependent pressure gear release for vehicles with interposed gears.

Description

Die vorliegende Erfindung betrifft eine Getriebera­ stierung für Kraftfahrzeuge, und insbesondere für Nutzfahr­ zeuge.The present invention relates to a gearbox tion for motor vehicles, and in particular for commercial vehicles witness.

Die Positionen "Neutral" (N) und "Gang eingelegt" (GE) an Getrieben müssen am Schalthebel für den Fahrer deutlich spürbar rückgemeldet werden. Dies wird üblicherweise über federbelastete Rastenstifte erreicht, die sich in Rasten­ segmenten zentrieren.The positions "Neutral" (N) and "Gear engaged" (GE) on gearboxes must be clear to the driver on the gear lever noticeable feedback. This is usually about spring-loaded indexing pins reached, which are in indexing center segments.

Die Rastierungskräfte der Schaltstellung "Gang einge­ legt" müssen wegen der aufzufangenden Kräfte, die aus Längs- und Vertikalbeschleunigungen aufgrund von Fahrbahn­ stößen resultieren, besonders stark ausgeführt werden. Da sich diese Kräfte beim Einschalten in den Gang zum Syn­ chronwiderstand summieren, wirken sie sich in diesem Moment ungünstig aus.The locking forces of the switch position "gear on "must because of the forces to be absorbed that Longitudinal and vertical accelerations due to road surface bumps result, are carried out particularly strongly. There these forces when switching on to the syn add up chronological resistance, they act at this moment unfavorable.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Getrieberastierung zu schaffen, die nur bei wirklichem Bedarf rastiert und somit das Gangeinlegen bequemer gestal­ tet, ohne auf die während der Fahrt erforderlichen Rastie­ rungskräfte zu verzichten.The present invention is based on the object to create a gear lock that is only real If necessary, the gear locks are more convenient without the Rastie required while driving to waive

Dies wird erfindungsgemäß durch die im kennzeichnenden Teil des Hauptanspruchs angegebenen Merkmale gelöst. Weite­ re Ausgestaltungen der Erfindung gehen aus den Unteransprü­ chen hervor. This is according to the invention by the characteristic Part of the main claim specified features solved. Vastness re embodiments of the invention go from the dependent claims Chen stands out.  

Demnach wird die erfindungsgemäße Getrieberastierung durch eine bei Bedarf pneumatisch oder hydraulisch redu­ zierbare Rastenkraft realisiert. Dabei wird die Anhebung des als Kolbenschieber ausgeführten Rastenelements vorteil­ haft über den Ausrückdruck der Kupplung bzw. über die kupp­ lungsstellungsabhängige Druckfreigabe für Getriebe mit Vor­ schaltgruppe ausgeführt.Accordingly, the gear locking according to the invention by a pneumatically or hydraulically reduced if necessary detectable locking force realized. Doing so will raise of the detent element designed as a piston slide advantageous is responsible for the clutch release pressure or the clutch position-dependent pressure release for gearbox with pre switching group executed.

Die kupplungsabhängige Servokraft wird somit zur Auf­ hebung der Vorspannkraft eingesetzt.The clutch-dependent servo force is thus on used to increase the preload.

Die Erfindung resultiert in eine harte GE-Rastierung bei geschlossenem Antriebsstrang und in einen leichteren Schaltvorgang beim Synchronisieren durch die aufgehobene Rastenwirkung.The invention results in a hard GE detent with the drive train closed and in a lighter one Switching process when synchronizing through the canceled Detent effect.

Damit wird erreicht, daß die - nur bei kraftschlüssi­ gem Antriebsstrang - erforderlichen Rastenkräfte lediglich bei eingelegtem Gang und eingerückter Kupplung wirksam wer­ den und auch entsprechend hoch gewählt werden können. Zum Ausschalten und Einschalten der Gänge wird zwangsläufig die Kupplung getreten und damit die Rastierung aufgehoben oder erheblich reduziert. Dadurch sind hohe Rastenkräfte mög­ lich, ohne deren Nachteile in Form von Wirkungsgradverlu­ sten in der Schaltung akzeptieren zu müssen.This ensures that the - only with friction according to the drivetrain - only required snap-in forces effective when the gear is engaged and the clutch engaged the and can also be chosen accordingly high. To the Switching off and on the gears is inevitable Coupling kicked and thus the detent canceled or significantly reduced. This enables high cogging forces Lich, without their disadvantages in the form of loss of efficiency to accept in the circuit.

Die Erfindung wird im folgenden anhand von Beispielen bevorzugter Ausführungsformen und der beigefügten Zeichnung illustriert.The invention is illustrated below by means of examples preferred embodiments and the accompanying drawing illustrated.

Fig. 1 zeigt eine Schnittansicht einer ersten Aus­ führungsform der erfindungsgemäßen Getrie­ berastierung und Fig. 1 shows a sectional view of a first imple mentation of the transmission according to the invention and locking

Fig. 2 zeigt eine Schnittansicht einer zweiten Aus­ führungsform der erfindungsgemäßen Getrie­ berastierung. Fig. 2 shows a sectional view of a second imple mentation of the transmission locking according to the invention.

Gemäß Fig. 1 sind die Anheberasten "Gang eingelegt" 8 und konstante Neutral-Rasten 9 am Umfang des Rastenseg­ ments 3 verteilt angeordnet. Die federbelasteten Rasten­ stifte 1 und 2 zentrieren sich im Rastensegment 3 auf der Schaltwelle in den jeweiligen Rasten 8 und 9. Wenn die Kupplung getreten, d. h. ausgerückt wird, wird durch den Ausrückdruck der Kupplung P_Kupplung die Rastenkraft redu­ ziert. Bei eingerückter Kupplung sorgt die Feder 4 im Ge­ häuse 5 und die Feder 12 an dem Rastenstift 2 für die er­ forderliche Rastenkraft.Referring to FIG. 1, the lifting pegs are "gear engaged" 8 and constant neutral notches 9 are arranged distributed on the circumference of Rastenseg ments. 3 The spring-loaded notches pins 1 and 2 center in the notch segment 3 on the selector shaft in the respective notches 8 and 9 . If the clutch is depressed, ie disengaged, the detent force is reduced by the clutch P_ clutch release pressure. When the clutch is engaged, the spring 4 in the housing 5 and the spring 12 on the detent pin 2 provide the necessary detent force.

Die Fig. 2 zeigt eine verschachtelte Anordnung. Der Rastenstift 1 greift in die Raste 9 am Rastensegment 3 in der Neutralstellung ein. Der Rastenstift 1 wird von einer ersten Feder 7, die sich am Gehäuse 5 abstützt, gegen die Raste 9 gerückt. An einem Rand 10 an dem Rastenstift 1 liegt ein Kolben 11 an, der von einer zweiten Feder 6 gegen den Rastenstift 1 gedrückt wird. Die Feder 6 stützt sich ebenfalls am Gehäuse 5 ab. Vorzugsweise ist die Federkraft der Feder 6 größer als die Federkraft der Feder 7. Fig. 2 shows a nested arrangement. The detent pin 1 engages in the detent 9 on the detent segment 3 in the neutral position. The detent pin 1 is pushed against the detent 9 by a first spring 7 , which is supported on the housing 5 . A piston 11 bears against an edge 10 on the detent pin 1 and is pressed against the detent pin 1 by a second spring 6 . The spring 6 is also supported on the housing 5 . The spring force of the spring 6 is preferably greater than the spring force of the spring 7 .

Wenn die Kupplung getreten, d. h. ausgerückt wird, drückt die Kraft P_Kupplung den Kolben 11 und die Feder 6 bzw. 4 zurück. Der Fahrer muß dann beim Schalten lediglich die Kraft aus der Feder 7 bzw. 12 überbrücken. Wenn dagegen die Kupplung eingerückt ist, ist eine Kraft aus den Fe­ dern 6 und 7 bzw. 4 und 12 wirksam. When the clutch is depressed, ie disengaged, the force P_Kupplung pushes the piston 11 and the spring 6 or 4 back. The driver then only has to bridge the force from the spring 7 or 12 when switching. On the other hand, when the clutch is engaged, a force from the Fe 6 and 7 or 4 and 12 is effective.

Die vorliegende Erfindung ist kostengünstig sowie ein­ fach realisierbar, da die erforderliche Servokraft bereits der Kupplungsvorrichtung vorhanden ist und zu dem erfin­ dungsgemäßen Zweck umgeleitet wird. The present invention is inexpensive as well feasible because the required servo power already the coupling device is present and to the inventions intended purpose is redirected.  

BezugszeichenlisteReference list

11

, ,

22nd

Rastenstifte
Index pins

33rd

Rastensegment
Grid segment

44th

Feder
feather

55

Gehäuse
casing

66

, ,

77

Feder
feather

88th

Raste GE
Rested GE

99

Raste N
Snap N

1010th

Rand
edge

1111

Kolben
piston

1212th

Feder
feather

Claims (7)

1. Getrieberastierung für Kraftfahrzeuge, und insbe­ sondere für Nkw, mit wenigstens einem Rastenelement (1, 2), das mit einem Rastensegment (3) zusammenwirkt, dadurch gekennzeichnet, daß die vom Rastenele­ ment (1, 2) auf das Rastensegment (3) ausgeübte Kraft bei Bedarf pneumatisch oder hydraulisch reduzierbar ist.1. gear locking for motor vehicles, and in particular special for commercial vehicles, with at least one detent element ( 1 , 2 ) which interacts with a detent segment ( 3 ), characterized in that the element from Rastenele ( 1 , 2 ) on the detent segment ( 3 ) applied force can be reduced pneumatically or hydraulically if required. 2. Getrieberastierung nach Anspruch 1, dadurch ge­ kennzeichnet, daß mehrere Rastenelemente (1, 2) vorgesehen sind, die am Umfang des Rastensegmentes (3) verteilt angeordnet sind.2. Gear locking according to claim 1, characterized in that a plurality of detent elements ( 1 , 2 ) are provided, which are arranged distributed on the circumference of the detent segment ( 3 ). 3. Getrieberastierung nach Anspruch 1, dadurch ge­ kennzeichnet, daß das Rastenelement (1) in­ einander verschachtelt angeordnet ist.3. Gear lock according to claim 1, characterized in that the detent element ( 1 ) is arranged nested in one another. 4. Getrieberastierung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein Rastenelement (1) als Kolbenschieber ausgeführt ist.4. Gear lock according to one of claims 1 to 3, characterized in that a detent element ( 1 ) is designed as a piston slide. 5. Getrieberastierung nach einem der vorherigen An­ sprüche, dadurch gekennzeichnet, daß we­ nigstens eines der Rastenelemente (1, 2) von einem elasti­ schen Mittel (4, 6, 7, 12) mit dem Rastensegment (3) in Wirkverbindung gebracht wird.5. Gear locking according to one of the preceding claims, characterized in that we at least one of the detent elements ( 1 , 2 ) is brought into operative connection with the detent segment ( 3 ) by an elastic means ( 4 , 6 , 7 , 12 ). 6. Getrieberastierung nach einem der vorherigen An­ sprüche, dadurch gekennzeichnet, daß die Anhebung des Rastenelements (1) über den Ausrück­ druck (P_Kupplung) der Kupplung erfolgt. 6. Gear locking according to one of the preceding claims, characterized in that the raising of the detent element ( 1 ) via the disengagement pressure (P_ clutch) of the clutch takes place. 7. Getrieberastierung nach einem der vorherigen An­ sprüche, dadurch gekennzeichnet, daß die Anhebung des Rastenelements (1) über die kupplungsstel­ lungsabhängige Druckfreigabe für Getriebe mit Vorschalt­ gruppe erfolgt.7. gear locking according to one of the preceding claims, characterized in that the raising of the detent element ( 1 ) on the clutch position-dependent pressure release for transmissions with ballast group takes place.
DE1997135844 1997-08-19 1997-08-19 Commercial vehicle gear selector providing tactile position lock indication Ceased DE19735844A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997135844 DE19735844A1 (en) 1997-08-19 1997-08-19 Commercial vehicle gear selector providing tactile position lock indication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997135844 DE19735844A1 (en) 1997-08-19 1997-08-19 Commercial vehicle gear selector providing tactile position lock indication

Publications (1)

Publication Number Publication Date
DE19735844A1 true DE19735844A1 (en) 1999-02-25

Family

ID=7839368

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997135844 Ceased DE19735844A1 (en) 1997-08-19 1997-08-19 Commercial vehicle gear selector providing tactile position lock indication

Country Status (1)

Country Link
DE (1) DE19735844A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR199801804A3 (en) * 1997-09-12 1999-10-21 Eaton Corporation Slide rail trigger assembly.
DE29913633U1 (en) * 1999-08-05 1999-11-25 Eissmann GmbH, 72574 Bad Urach Gear lever
DE19840849A1 (en) * 1998-09-07 2000-03-16 Claas Industrietechnik Gmbh Device for shifting a multi-speed transmission
DE10232530A1 (en) * 2002-07-18 2004-01-29 Zf Friedrichshafen Ag Shift blocking device for blocking a reverse gear of a vehicle transmission comprises a spring-loaded blocking bolt controlled by lubricating oil pressure and engaging with a selector shaft to limit movements of the selector shaft
DE102005048300A1 (en) * 2005-10-08 2007-04-12 GM Global Technology Operations, Inc., Detroit A method for reducing the vibration and noise from a motor vehicle gearbox transmitting through the gear selection lever has a normally operative brake on the gear change shaft hydraulically or electrically released for a gear change
WO2007147632A1 (en) * 2006-06-24 2007-12-27 Daimler Ag Manual gearbox comprising a central gearshift shaft and shifting method for said gearbox
DE10209772B4 (en) * 2002-03-05 2008-08-21 Daimler Ag Switching device for a change-speed gearbox
EP2116747A3 (en) * 2008-05-09 2011-12-28 ZF Friedrichshafen AG Shifting device for a transmission of a vehicle
DE102013206851A1 (en) * 2012-12-04 2014-06-05 Schaeffler Technologies Gmbh & Co. Kg Switching device of speed-change gearbox for vehicle e.g. motor car, has gear locking device that is set to block the laying of switched gears or laying of neutral position
DE102014201974A1 (en) * 2014-02-04 2015-08-20 Zf Friedrichshafen Ag Method for operating an automatic transmission and control device for carrying out the method
CN105351510A (en) * 2015-12-14 2016-02-24 陕西法士特齿轮有限责任公司 Transmission main box lock stop protection mechanism
CN110588610A (en) * 2019-10-08 2019-12-20 宁波上中下自动变速器有限公司 Parking braking system and vehicle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256496B (en) * 1963-03-27 1967-12-14 Licentia Gmbh Locking device for axially displaceable cylindrical body
EP0073280A1 (en) * 1981-08-26 1983-03-09 Deere & Company Gear shift arrangement for a vehicle
DE4125567A1 (en) * 1991-08-02 1993-02-04 Schaeffler Waelzlager Kg Retaining latch for actuator rod in vehicle transmission - has spring loaded ball captive in housing that is cylindrical by insert that is deformed by ring inserted over end section
DE4141986A1 (en) * 1991-12-19 1993-06-24 Schaeffler Waelzlager Kg Car gearbox gearchange linkage latch - has ball retaining element in plastics housing with metal bush moulded into it
DE4312997A1 (en) * 1993-04-21 1994-10-27 Schaeffler Waelzlager Kg Gear selector lock
WO1995035456A1 (en) * 1994-06-20 1995-12-28 Ina Wälzlager Schaeffler Kg Locking device
DE19609429A1 (en) * 1996-03-11 1997-09-18 Zahnradfabrik Friedrichshafen Mechanical latch e.g. for motor vehicle manual gear selection

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256496B (en) * 1963-03-27 1967-12-14 Licentia Gmbh Locking device for axially displaceable cylindrical body
EP0073280A1 (en) * 1981-08-26 1983-03-09 Deere & Company Gear shift arrangement for a vehicle
DE4125567A1 (en) * 1991-08-02 1993-02-04 Schaeffler Waelzlager Kg Retaining latch for actuator rod in vehicle transmission - has spring loaded ball captive in housing that is cylindrical by insert that is deformed by ring inserted over end section
DE4141986A1 (en) * 1991-12-19 1993-06-24 Schaeffler Waelzlager Kg Car gearbox gearchange linkage latch - has ball retaining element in plastics housing with metal bush moulded into it
DE4312997A1 (en) * 1993-04-21 1994-10-27 Schaeffler Waelzlager Kg Gear selector lock
WO1995035456A1 (en) * 1994-06-20 1995-12-28 Ina Wälzlager Schaeffler Kg Locking device
DE19609429A1 (en) * 1996-03-11 1997-09-18 Zahnradfabrik Friedrichshafen Mechanical latch e.g. for motor vehicle manual gear selection

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902219A3 (en) * 1997-09-12 1999-12-29 Eaton Corporation Shift rail detent assembly
TR199801804A3 (en) * 1997-09-12 1999-10-21 Eaton Corporation Slide rail trigger assembly.
DE19840849A1 (en) * 1998-09-07 2000-03-16 Claas Industrietechnik Gmbh Device for shifting a multi-speed transmission
US6269708B1 (en) 1998-09-07 2001-08-07 Class Industrietechnik Gmbh Device for multi-stage gearbox and method of operating
DE19840849C2 (en) * 1998-09-07 2001-09-27 Claas Industrietechnik Gmbh Device for locking a shift rod
RU2241165C2 (en) * 1998-09-07 2004-11-27 КЛААС ИНДУСТРИТЕХНИК ГмбХ Method and device for locking multi-gear gear box
DE29913633U1 (en) * 1999-08-05 1999-11-25 Eissmann GmbH, 72574 Bad Urach Gear lever
DE10209772B4 (en) * 2002-03-05 2008-08-21 Daimler Ag Switching device for a change-speed gearbox
DE10232530A1 (en) * 2002-07-18 2004-01-29 Zf Friedrichshafen Ag Shift blocking device for blocking a reverse gear of a vehicle transmission comprises a spring-loaded blocking bolt controlled by lubricating oil pressure and engaging with a selector shaft to limit movements of the selector shaft
DE102005048300A1 (en) * 2005-10-08 2007-04-12 GM Global Technology Operations, Inc., Detroit A method for reducing the vibration and noise from a motor vehicle gearbox transmitting through the gear selection lever has a normally operative brake on the gear change shaft hydraulically or electrically released for a gear change
WO2007147632A1 (en) * 2006-06-24 2007-12-27 Daimler Ag Manual gearbox comprising a central gearshift shaft and shifting method for said gearbox
EP2116747A3 (en) * 2008-05-09 2011-12-28 ZF Friedrichshafen AG Shifting device for a transmission of a vehicle
DE102013206851A1 (en) * 2012-12-04 2014-06-05 Schaeffler Technologies Gmbh & Co. Kg Switching device of speed-change gearbox for vehicle e.g. motor car, has gear locking device that is set to block the laying of switched gears or laying of neutral position
DE102014201974A1 (en) * 2014-02-04 2015-08-20 Zf Friedrichshafen Ag Method for operating an automatic transmission and control device for carrying out the method
US9388899B2 (en) 2014-02-04 2016-07-12 Zf Friedrichshafen Ag Method and control device thereto for operating an automatic transmission
DE102014201974B4 (en) 2014-02-04 2021-11-18 Zf Friedrichshafen Ag Method for operating an automatic transmission and control device for carrying out the method
CN105351510A (en) * 2015-12-14 2016-02-24 陕西法士特齿轮有限责任公司 Transmission main box lock stop protection mechanism
CN110588610A (en) * 2019-10-08 2019-12-20 宁波上中下自动变速器有限公司 Parking braking system and vehicle

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