DE2263357A1 - Motor vehicle automatic gearbox - has limit switch adjustable in relation to switching tongue and coupled to gas pedal via linkage - Google Patents

Motor vehicle automatic gearbox - has limit switch adjustable in relation to switching tongue and coupled to gas pedal via linkage

Info

Publication number
DE2263357A1
DE2263357A1 DE2263357A DE2263357A DE2263357A1 DE 2263357 A1 DE2263357 A1 DE 2263357A1 DE 2263357 A DE2263357 A DE 2263357A DE 2263357 A DE2263357 A DE 2263357A DE 2263357 A1 DE2263357 A1 DE 2263357A1
Authority
DE
Germany
Prior art keywords
limit switch
coupled
automatic gear
pressure control
accelerator pedal
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.)
Granted
Application number
DE2263357A
Other languages
German (de)
Other versions
DE2263357C3 (en
DE2263357B2 (en
Inventor
Karlmann Hamma
Karl-Heinz Schachmann
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 DE19722263357 priority Critical patent/DE2263357C3/en
Priority claimed from DE19722263357 external-priority patent/DE2263357C3/en
Priority to DE19732307552 priority patent/DE2307552C3/en
Publication of DE2263357A1 publication Critical patent/DE2263357A1/en
Publication of DE2263357B2 publication Critical patent/DE2263357B2/en
Application granted granted Critical
Publication of DE2263357C3 publication Critical patent/DE2263357C3/en
Expired 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
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/468—Automatic regulation in accordance with output requirements for achieving a target input torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/101—Infinitely variable gearings
    • B60W10/103—Infinitely variable gearings of fluid type
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/465—Automatic regulation in accordance with output requirements for achieving a target input speed
    • 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
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

The automatic gearbox is designed for a motor vehicle whose engine drives an adjusting converter in front of the gearbox, while switching a power regulator with a control slider via a switching torque of at least one limit switch (7). The latter is slidably mounted relative to the switching torque (6) and is coupled in the acceleration pedal (9) via a linkage (8). Preferably the limit switch is connected to a hydraulic adjusting cylinder (14) which is coupled to a speed dependent pump (10) via a pressure control valve (13) which is controllable by the acceleration pedal via a mechanical linkage (16). A pressure box may be used for the valve control.

Description

Automatische Gangschaltung Die Erfindung bezieht sich auf eine automatische Gangschaltung in einem Fahrzeug, dessen Antriebsmotor über ein Gaspedal gesteuert einen hydrostatischen Verstellwandler mit nachgeschalteten Schaltgetriebe antreibt und ein Leistungsregler mit einem Steuerschieber über einen Schaltfinger mindestens einen Endschalter zum Schalten der Gänge schaltet entsprechend Patentanmeldung P 22 27 796.9. Automatic gear shifting The invention relates to an automatic one Gear shift in a vehicle, the drive motor of which is controlled by an accelerator pedal drives a hydrostatic variable converter with a downstream gearbox and a power regulator with a control slide via a switching finger at least a limit switch for shifting the gears switches according to patent application P. 22 27 796.9.

Aufgabe der Erfindung ist es, in einer derartigen Gangschaltung eine Schaltpunktverschiebung zu erreichen. Es soll beim Hochschalten der Gänge schon bei niedrigeren Motordrehzahlen ein Gangwechsel erfolgen bei nicht voller Auslastung des Antriebsmotors. Bei maximaler Motorbelastung soll der Gangwechsel erst beim Erreichen der Nenndrehzahl erfolgen. The object of the invention is to provide a gearshift in such a gearshift To achieve switching point shift. It should be when shifting up the gears at lower engine speeds a gear change takes place when the load is not fully utilized of the drive motor. At maximum engine load, the gear change should only take place when Reaching the nominal speed take place.

Bei Wegnehmen des Gases soll möglichst lange im hohen Gang verweilt werden.When you remove the gas, you should stay in high gear for as long as possible will.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Endschalter gegen den Schaltfinger verschiebbar gelagert angeordnet ist und über ein Gestänge mit dem Gaspedal gekoppelt ist. This object is achieved according to the invention in that the limit switch is arranged displaceably mounted against the shift finger and via a linkage is coupled to the accelerator pedal.

Im Rahmen der Erfindung kann diese Aufgabe auch dadurch gelöst sein, daß der Endschalter mit einem hydraulischen Verstellzylinder gekoppelt ist, der über ein Drucksteuerungsventil an eine drehzahlabhängige Pumpe angeschlossen ist und das Drucksteuerungsventil über ein mechanisches Gestänge vom Gaspedal her verstellbar ist. In the context of the invention, this object can also be achieved by that the limit switch is coupled to a hydraulic adjusting cylinder, the is connected to a speed-dependent pump via a pressure control valve and the pressure control valve can be adjusted via a mechanical linkage from the accelerator pedal is.

Auch kann die Ausführung der Erfindung so getroffen sein, daß der Schaltfinger den Endschalter in seiner Stellung am Anschlag durchfährt. The embodiment of the invention can also be made so that the Switching finger passes through the limit switch in its position at the stop.

Es ist auch möglich mittels einer Druckdose eine Düsennadel in eine Drucksteuereinrichtung einzuführen, um eine Drucksteuerung zu erhalten, die außerdem drehzahlabhängig ist. Der Druck kann zur Steuerung eines Verstellzylinders dienen, der über ein Gestänge den Endschalter verschiebt. It is also possible to insert a nozzle needle into a pressurized can To introduce pressure control means to obtain pressure control that also is speed dependent. The pressure can be used to control an adjusting cylinder, which moves the limit switch via a linkage.

Schließlich kann die Ausführung auch so sein, daß der Schaltfinger den Endschalter durchfährt. Finally, the design can also be such that the shift finger passes the limit switch.

Die Erfindung wird an den Ausführungsbeispielen der Figuren erläutert. The invention is explained using the exemplary embodiments in the figures.

Darin zeigen die Figuren eine automatische Gangschaltung, wie sie der Patentanmeldung P 22 27 796.9 entspricht. In den Figuren sind gleiche Teile mit gleichen Bezugs zeichen versehen. In it, the figures show an automatic gearshift like them the patent application P 22 27 796.9 corresponds. The figures show the same parts provided with the same reference symbols.

Der Antriebsmotor 1 der Fig. l treibt den hydrostatischen Verstellwandler 2, und dieser wirkt auf das Getriebe 30 Ein Leistungsregler 4 mit Schaltvorrichtung 5 hat einen verschiebbaren Schaltfinger 6, der einen Endschalter 7 schaltet. The drive motor 1 of FIG. 1 drives the hydrostatic variable-displacement converter 2, and this acts on the transmission 30 A power regulator 4 with switching device 5 has a sliding switch finger 6 which switches a limit switch 7.

Dieser Endschalter 7 ist verschiebbar gelagert und kann gegen den Schaltfinger 6 oder von ihm weg über ein Gestänge 8 verschoben werden, das an das Gaspedal 9 des Fahrzeuges angekoppelt ist.This limit switch 7 is slidably mounted and can against the Shift finger 6 or away from it via a linkage 8 that is attached to the Accelerator pedal 9 of the vehicle is coupled.

In der Figur 2 ist eine drehzahlabhängige Pumpe 10 an den Abtrieb 11 des Antriebsmotors 1 geschaltet, die über eine Druckleitung 12 auf ein druckabhängig steuerbares Ventil 13 wirkt und von dort aus auf einen Verstellzylinder 14, der über eine Stange 15 den Endschalter 7 verstellt. Die Steuerung des Ventiles 13 ist über eine mechanische Verstellung 16 und ein Gestänge 8 an das Gaspedal angeschlossen0 In der Fig. 3 erfolgt die Drucksteuerung vom Gaspedal her über eine Druckdose 22. In FIG. 2, a speed-dependent pump 10 is connected to the output 11 of the drive motor 1 switched, via a pressure line 12 on a pressure-dependent controllable valve 13 acts and from there on an adjusting cylinder 14, the The limit switch 7 is adjusted via a rod 15. The control of the valve 13 is Connected to the accelerator pedal via a mechanical adjustment 16 and a linkage 8 In FIG. 3, the pressure is controlled from the accelerator pedal via a pressure cell 22.

In der Fig. 4 ist eine Drosselblende 33 für die Drucksteuerung eingesetzt. In FIG. 4, a throttle orifice 33 is used for pressure control.

In der Fig. 5 wird gezeigt, wie über Druckleitung 17 und Verstellzylinder 14 der Endschalter 7 lastabhängig verschoben wird und damit den Schaltpunkt verändert. In Fig. 5 it is shown how the pressure line 17 and the adjusting cylinder 14 the limit switch 7 is shifted depending on the load and thus changes the switching point.

Die Wirkungsweise dieser Anordnung der Figuren besteht darin, daß mit dem Gaspedal 9 die Verschiebung des Endschalters 7 erfolgt und damit der Schaltpunkt für das Hochschalten oder Herunterschalten der Gänge beeinflußt ist. The effect of this arrangement of the figures is that with the accelerator pedal 9, the limit switch 7 is shifted and thus the switching point for upshifting or downshifting the gears is affected.

Der Schaltpunkt wird dabei lastabhängig verändert. Der Endanschlag 17 entspricht dem Schaltpunkt bei voll ausgeschwenkten Hydrostat, d. h. bei maximaler Nenndrehzahl der Antriebsmaschine. The switching point is changed depending on the load. The end stop 17 corresponds to the switching point when the hydrostat is fully swung out, i.e. H. at maximum Rated speed of the prime mover.

Claims (5)

P a t e n t a n s p r ü c h eP a t e n t a n s p r ü c h e 1. Automatische Gangschaltung in einem Fahrzeug, dessen Antriebsmotor über ein Gaspedal gesteuert einen hydrostatischen Verstellwandler mit nachgeschaltetem Schaltgetriebe antreibt und ein teistungsregler mit einem Steuerschieber über einen Schaltfinger mindestens einen Endschalter zum Schalten der Gänge schaltet entsprechend Patentanmeldung P 22 27 796.9, dadurch gekennzeichnet, daß der Endschalter (7) gegen den Schaltfinger (6) verschiebbar gelagert angeordnet ist und über ein Gestänge (8) mit dem Gaspedal gekoppelt ist. 1. Automatic gear shifting in a vehicle, its drive motor Controlled by an accelerator pedal, a hydrostatic variable-speed converter with a downstream Manual transmission drives and a power regulator with a control slide via a Shift finger at least one limit switch for shifting the gears switches accordingly Patent application P 22 27 796.9, characterized in that the limit switch (7) against the shift finger (6) is arranged displaceably and via a linkage (8) is coupled to the accelerator pedal. 2. Automatische Gangschaltung nach Anspruch 1, dadurch gekennzeichnet, daß der Endschalter (7) mit einem hydraulischen Verstellzylinder (14) gekoppelt ist, der über ein Drucksteuerungsventil (13) an eine drehzahlabhängige Pumpe (10) angeschlossen ist und das Drucksteuerungsventil (13) über ein mechanisches Gestänge (16) vom Gaspedal (9) verstellbar ist. 2. Automatic gear shift according to claim 1, characterized in that that the limit switch (7) is coupled to a hydraulic adjusting cylinder (14) which is fed via a pressure control valve (13) to a speed-dependent pump (10) is connected and the pressure control valve (13) via a mechanical linkage (16) is adjustable from the accelerator pedal (9). 3. Automatische Gangschaltung nach Anspruch 2, dadurch gekennzeichnet, daß das Drucksteuerungsventil (13) über eine Druckdose (22) steuerbar ist. 3. Automatic gear shift according to claim 2, characterized in that that the pressure control valve (13) can be controlled via a pressure cell (22). 4. Automatische Gangschaltung nach Anspruch 3, dadurch gekennzeichnet, daß die Drucksteuerung eine verstellbare Drossel (33) ist, die an die Druckdose angeschlossen ist. 4. Automatic gear shift according to claim 3, characterized in that that the pressure control is an adjustable throttle (33) which is attached to the pressure cell connected. 5. Automatische Gangschaltung nach Anspruch 1, dadurch gekennzeichnet, daß der Schaltfinger (6) den Endschalter (7) durchfahrend angeordnet ist. 5. Automatic gear shift according to claim 1, characterized in that that the switching finger (6) is arranged to pass through the limit switch (7).
DE19722263357 1972-12-23 Transmission setting device for a compound transmission, for vehicles Expired DE2263357C3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19722263357 DE2263357C3 (en) 1972-12-23 Transmission setting device for a compound transmission, for vehicles
DE19732307552 DE2307552C3 (en) 1973-02-16 Gear ratio setting device for a compound transmission for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722263357 DE2263357C3 (en) 1972-12-23 Transmission setting device for a compound transmission, for vehicles

Publications (3)

Publication Number Publication Date
DE2263357A1 true DE2263357A1 (en) 1974-09-05
DE2263357B2 DE2263357B2 (en) 1976-06-24
DE2263357C3 DE2263357C3 (en) 1977-02-24

Family

ID=

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474717A1 (en) * 1980-01-28 1981-07-31 Sundstrand Corp SPEED CONTROL OF AN ENGINE
EP0728612A2 (en) * 1987-03-06 1996-08-28 Michael Meyerle Control device for a continuously variable transmission for motor vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474717A1 (en) * 1980-01-28 1981-07-31 Sundstrand Corp SPEED CONTROL OF AN ENGINE
EP0728612A2 (en) * 1987-03-06 1996-08-28 Michael Meyerle Control device for a continuously variable transmission for motor vehicles
EP0728612A3 (en) * 1987-03-06 1996-12-18 Michael Meyerle Control device for a continuously variable transmission for motor vehicles

Also Published As

Publication number Publication date
DE2263357B2 (en) 1976-06-24

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8340 Patent of addition ceased/non-payment of fee of main patent