DE10115126A1 - Device for operation of parking position of automatic transmission has handbrake lever connected to hand brake cable and parking position cable, and magnetic switch prevents engagement of lock until speed of vehicle is zero - Google Patents

Device for operation of parking position of automatic transmission has handbrake lever connected to hand brake cable and parking position cable, and magnetic switch prevents engagement of lock until speed of vehicle is zero

Info

Publication number
DE10115126A1
DE10115126A1 DE2001115126 DE10115126A DE10115126A1 DE 10115126 A1 DE10115126 A1 DE 10115126A1 DE 2001115126 DE2001115126 DE 2001115126 DE 10115126 A DE10115126 A DE 10115126A DE 10115126 A1 DE10115126 A1 DE 10115126A1
Authority
DE
Germany
Prior art keywords
parking position
cable
parking lock
vehicle
hand brake
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.)
Withdrawn
Application number
DE2001115126
Other languages
German (de)
Inventor
Georg Gierer
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 DE2001115126 priority Critical patent/DE10115126A1/en
Publication of DE10115126A1 publication Critical patent/DE10115126A1/en
Withdrawn legal-status Critical Current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
    • F16H63/40—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 comprising signals other than signals for actuating the final output mechanisms
    • F16H63/48—Signals to a parking brake or parking lock; Control of parking locks or brakes being part of the transmission
    • F16H63/483—Circuits for controlling engagement of parking locks or brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/08—Brake-action initiating means for personal initiation hand actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Braking Elements And Transmission Devices (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

The device for the mechanical operation of the parking position of an automatic transmission has an additional lever inside the vehicle serving as the operating element (1). The additional lever may be the handbrake lever (2) which is connected to both the hand brake cable (3) and parking position cable (5). A magnetic switch (7) is provided so that as long as the speed of the vehicle equals anything but zero the parking lock is prevented from engaging.

Description

Die Erfindung betrifft eine Vorrichtung zum Bedienen einer Parksperre nach dem Oberbegriff des Hauptanspruches. Bei Automatgetrieben werden meist durch elektronische Steu­ erungen die verschiedenen Gänge des Getriebes ausgewählt und von elektrischen oder hydraulischen Aktuatoren geschal­ tet. Über ein Bedienelement kann dabei der Fahrer meist zwischen den Fahrstufen D, R, N und P wählen. Sobald die Stufe P ausgewählt ist, arretiert die Sperrklinke einer Parksperre das Parksperrenrad, welches auf der Getriebeaus­ gangswelle sitzt und diese somit blockiert. Damit ist das Fahrzeug gegen ungewolltes Rollen aus dem Stand gesichert.The invention relates to a device for operating a parking lock according to the preamble of the main claim. Automatic transmissions are usually controlled by electronic control the different gears of the gearbox selected and shuttered by electrical or hydraulic actuators tet. The driver can usually do this via an operating element choose between speed levels D, R, N and P. As soon as the Level P is selected, the pawl locks one Parking lock the parking lock wheel, which is on the gearbox gear shaft sits and thus blocks it. That’s it Vehicle secured against unwanted rolling from a standstill.

Die DE 44 22 257 C1 beschreibt eine Fahrstufenwählein­ richtung für ein automatisches Kraftfahrzeuggetriebe, bei der die Gänge der ausgewählten Fahrstufen über einen Elekt­ romotor eingeschaltet werden. Dabei werden die Stufen D, R und N nur durch den Elektromotor geschaltet. Das Einlegen der Stufe P ist aber bei ausgeschalteter Zündung zudem noch über einen Federspeicher möglich. Dafür wird über einen Bowdenzug der Blockierhebel eines Federspeichers entrie­ gelt, wodurch sich der Federspeicher entspannt und dadurch die Sperrklinke in das Parksperrenrad einrasten läßt. Der Bowdenzug ist hier direkt mit der Wähleinrichtung gekop­ pelt. Bei dem darauffolgenden Einschalten der Zündung wird durch den Elektromotor der Federspeicher automatisch wieder zurückgezogen.DE 44 22 257 C1 describes a speed step selection direction for an automatic motor vehicle transmission, at which the gears of the selected speed levels via an elect romotor can be switched on. The stages D, R and N switched only by the electric motor. The insertion level P is also still when the ignition is switched off possible via a spring mechanism. For that, about one Bowden cable unlocked the locking lever of a spring accumulator applies, which relaxes the spring mechanism and thereby the pawl snaps into the parking lock wheel. The Bowden cable is directly linked to the dialing device pelt. The following time the ignition is switched on automatically by the spring-loaded electric motor withdrawn.

Nachteilhaft an dieser Lösung ist, daß für ein Bewegen des Fahrzeuges ohne eingeschaltete Zündung, z. B. beim Ab­ schleppen, eine Notentriegelung vorzusehen ist. Da die Verriegelung des Parksperrenrades durch den. Federspeicher ohne äußere Energie nicht wieder aufgehoben werden kann und der Elektromotor bei ausgeschalteter Zündung nicht zu Verfügung steht, kann die Parksperre ohne zusätzliche Vorrichtung zur Notentriegelung nicht gelöst werden.The disadvantage of this solution is that for moving of the vehicle without the ignition switched on, e.g. B. from Ab towing, an emergency release must be provided. Because the lock  of the parking lock wheel through the. Spring accumulator without external energy can not be canceled and the Electric motor not available when the ignition is switched off stands, the parking lock can without additional device Emergency release cannot be released.

Außerdem ist durch die mechanische Kopplung der Wählein­ richtung mit der Parksperre durch einen Bowdenzug kein freies Platzieren der Wähleinrichtung möglich. Die Wahl des Ortes der Wähleinrichtung ist also stark eingeschränkt. Es muß auch bei jedem Einschalten der Zündung die Position der Wähleinrichtung mit der Stellung des Elektromotors ver­ glichen werden, um eine notwendige Nachführung des Elektro­ motors zu erkennen. Wählt man bei ausgeschalteter Zündung die Stufe P, so wird die Parksperre ja nicht über den E­ lektromotor eingelegt, sondern über den Federspeicher. Des­ halb muß nach Einschalten der Zündung eventuell die Stel­ lung des Elektromotors an die Stellung der Wähleinrichtung angeglichen werden. Dies macht diese Fahrstufenwähleinrich­ tung aufwendig und kostenintensiv.In addition, the mechanical coupling of the dialer direction with the parking lock by a Bowden cable no free placement of the dialing device possible. The choice of The location of the dialing device is therefore very limited. The position must also be activated each time the ignition is switched on the selector with the position of the electric motor ver be compared to a necessary tracking of the electro motors to recognize. One selects with the ignition switched off the level P, so the parking lock is not over the E electric motor inserted, but via the spring mechanism. of half of the position may have to be switched on after switching on the ignition the electric motor to the position of the selector be adjusted. This makes this gear selector processing complex and cost-intensive.

Der Erfindung liegt die Aufgabe zugrunde, eine Vor­ richtung zum Einlegen einer Parksperre zu schaffen, welche einfach ausgeführt und eindeutig zu Bedienen ist.The invention has for its object a to create a parking lock, which simple and easy to use.

Diese Aufgabe wird durch eine Wähleinrichtung gelöst, die neben den Merkmalen des Oberbegriffs auch die Merkmale des kennzeichnenden Teils des Hauptanspruches aufweist.This task is solved by a selection device, which in addition to the characteristics of the generic term also the characteristics of the characterizing part of the main claim.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Parksperre rein mechanisch über einen Zusatzhebel ein- und wieder ausgeschaltet werden kann. Vorzugsweise wird als Zusatzhebel der in jedem Fahrzeug vorhandene Handbremshebel verwendet. Bei der Bedienung der Handbremse wird dadurch automatisch die Parksperre eingelegt. Solange das Fahrzeug in Bewegung ist, kann zudem über einen Magnetschalter die Parksperre von dem Handbremshebel entkoppelt und zurück­ gehalten werden.According to the invention this object is achieved in that the parking lock is activated mechanically using an additional lever and can be switched off again. Preferably, as Additional lever: the handbrake lever available in every vehicle used. When operating the handbrake  the parking lock is automatically inserted. As long as the vehicle is in motion, can also via a magnetic switch Parking lock decoupled from the hand brake lever and back being held.

Anhand der Prinzipdarstellung wird die erfindungsgemä­ ße Parksperrenbetätigung erläutert.Based on the schematic diagram, the inventive Parking lock actuation explained.

Ein Bedienelement 1 ist über einen Bremszug 3 mecha­ nisch mit einer Bremse 4 verbunden. Zudem ist das Bedien­ element 1 über einen Parksperrenzug 5 mechanisch mit einer Parksperre 6 verbunden. Im vorliegenden Ausführungsbeispiel ist das Bedienelement 1 zugleich der Handbremshebel 2. Bedient man den Handbremshebel 2, so wird neben dem Hand­ bremszug 3 auch der Parksperrenzug 5 angezogen. Dadurch rastet die Sperrklinke der Parksperre 6 in das Parksperren­ rad ein und blockiert dieses. Da das Parksperrenrad direkt an die Abtriebswelle des Getriebes gekoppelt ist, wird das Kraftfahrzeug somit gegen ein Rollen aus dem Stand gesi­ chert. Solange die Fahrzeuggeschwindigkeit ungleich Null ist, kann die Parksperre 6 durch den Magnetschalter 7 am Einlegen der Sperrklinke gehindert werden.An operating element 1 is mechanically connected to a brake 4 via a brake cable 3 . In addition, the control element 1 is mechanically connected to a parking lock 6 via a parking lock train 5 . In the present exemplary embodiment, the control element 1 is also the hand brake lever 2 . If you operate the hand brake lever 2 , the parking brake cable 5 is also tightened in addition to the hand brake cable 3 . As a result, the pawl of the parking lock 6 engages in the parking lock wheel and blocks it. Since the parking lock wheel is coupled directly to the output shaft of the transmission, the motor vehicle is thus secured against rolling from a standing position. As long as the vehicle speed is not equal to zero, the parking lock 6 can be prevented by the magnetic switch 7 from inserting the pawl.

Ein Vorteil dieser Anordnung ist die einfache Bedie­ nung der Parksperre und deren Verknüpfung mit der Handbrem­ se. Bei Fahrzeugstillstand muß der Fahrzeuglenker immer nur ein Bedienelement berücksichtigen und muß nicht entschei­ den, ob er eventuell nur die Parksperre oder nur die Hand­ bremse oder doch beides einlegen möchte.An advantage of this arrangement is the simple operation Parking lock and its connection with the handbrake When the vehicle is at a standstill, the driver only has to consider a control element and do not have to decide whether he only the parking lock or only the hand brake or want to put both.

Außerdem ist für ein Bewegen des Fahrzeuges aus der Parkpo­ sition heraus keine zusätzliche Notentriegelung notwendig. Da die Parksperre rein mechanisch über einen Bowdenzug ein- und wieder ausgeschaltet wird, ist dies auch bei ausge­ schalteter Zündung möglich.Also for moving the vehicle out of the parking lot no additional emergency release required. Since the parking lock is operated mechanically via a Bowden cable  and is switched off again, this is also the case with off switched ignition possible.

Da die Betätigung der Parksperre von der Betätigung der Fahrstufen D, R und N entkoppelt ist, kann die Wähleinrich­ tung der Fahrstufen vollkommen frei platziert werden. Since the operation of the parking lock from the operation of the D, R and N is decoupled, the dialer can direction of the speed levels can be placed completely freely.  

Bezugszeichenreference numeral

11

Bedienelement
operating element

22

Handbremshebel
handbrake lever

33

Handbremsenzug
Handbremsenzug

44

Bremse
brake

55

Parksperrenzug
Parksperrenzug

66

Parksperre
parking lock

77

Magnetschalter
magnetic switches

Claims (4)

1. Vorrichtung zum mechanischen Bedienen einer Park­ sperre (6), bestehend aus einem Parksperrenzug (5) und einem Bedienelement (1), dadurch gekennzeich­ net, daß als Bedienelement (1) der Parksperre (6) ein Zusatzhebel im Fahrgastraum vorgesehen ist.1. Device for mechanical operation of a parking lock ( 6 ), consisting of a parking lock train ( 5 ) and a control element ( 1 ), characterized in that an additional lever is provided in the passenger compartment as the control element ( 1 ) of the parking lock ( 6 ). 2. Vorrichtung nach Anspruch 1, dadurch ge­ kennzeichnet, daß als Bedienelement (1) für die Betätigung der Parksperre (6) der Handbremshebel (2) verwendet wird.2. Device according to claim 1, characterized in that the hand brake lever ( 2 ) is used as an operating element ( 1 ) for actuating the parking lock ( 6 ). 3. Vorrichtung nach Anspruch 2, dadurch ge­ kennzeichnet, daß der Handbremshebel (2) gleichzeitig mit dem Handbremszug (3) und dem Parksperren­ zug (5) verbunden ist.3. Apparatus according to claim 2, characterized in that the hand brake lever ( 2 ) is connected to the hand brake cable ( 3 ) and the parking lock train ( 5 ) at the same time. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, da­ durch gekennzeichnet, dass ein Magnet­ schalter (7) bei einer Fahrzeuggeschwindigkeit ungleich Null die Parksperre (6) am Einlegen der Sperrklinke hin­ dert.4. Device according to one of claims 1 to 3, characterized in that a magnetic switch ( 7 ) changes the parking lock ( 6 ) at the insertion of the pawl at a vehicle speed other than zero.
DE2001115126 2001-03-27 2001-03-27 Device for operation of parking position of automatic transmission has handbrake lever connected to hand brake cable and parking position cable, and magnetic switch prevents engagement of lock until speed of vehicle is zero Withdrawn DE10115126A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2001115126 DE10115126A1 (en) 2001-03-27 2001-03-27 Device for operation of parking position of automatic transmission has handbrake lever connected to hand brake cable and parking position cable, and magnetic switch prevents engagement of lock until speed of vehicle is zero

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2001115126 DE10115126A1 (en) 2001-03-27 2001-03-27 Device for operation of parking position of automatic transmission has handbrake lever connected to hand brake cable and parking position cable, and magnetic switch prevents engagement of lock until speed of vehicle is zero

Publications (1)

Publication Number Publication Date
DE10115126A1 true DE10115126A1 (en) 2002-10-02

Family

ID=7679278

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2001115126 Withdrawn DE10115126A1 (en) 2001-03-27 2001-03-27 Device for operation of parking position of automatic transmission has handbrake lever connected to hand brake cable and parking position cable, and magnetic switch prevents engagement of lock until speed of vehicle is zero

Country Status (1)

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DE (1) DE10115126A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008036971B3 (en) * 2008-08-08 2009-10-01 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Emergency release for parking lock of automatic transmission of motor vehicle, has operating wheel manually operated to bring parking lock element in outer engagement with parking lock wheel even in inactive condition of transmission

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116815A (en) * 1959-04-06 1964-01-07 Gen Motors Corp Brake system
DE19811243A1 (en) * 1997-03-21 1998-09-24 Volkswagen Ag Drive system for motor vehicle preferably having automatic gear box with control unit
DE19940029A1 (en) * 1999-08-24 2001-03-01 Bayerische Motoren Werke Ag Gear selector has emergency operation for parking lock that can be disengaged by unlocking device operated by driver and can be engaged by locking device operated by driver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116815A (en) * 1959-04-06 1964-01-07 Gen Motors Corp Brake system
DE19811243A1 (en) * 1997-03-21 1998-09-24 Volkswagen Ag Drive system for motor vehicle preferably having automatic gear box with control unit
DE19940029A1 (en) * 1999-08-24 2001-03-01 Bayerische Motoren Werke Ag Gear selector has emergency operation for parking lock that can be disengaged by unlocking device operated by driver and can be engaged by locking device operated by driver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008036971B3 (en) * 2008-08-08 2009-10-01 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Emergency release for parking lock of automatic transmission of motor vehicle, has operating wheel manually operated to bring parking lock element in outer engagement with parking lock wheel even in inactive condition of transmission

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