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DE10300613A1 - Method for application of additional input power on transmission gear of tractor - Google Patents

Method for application of additional input power on transmission gear of tractor Download PDF

Info

Publication number
DE10300613A1
DE10300613A1 DE10300613A DE10300613A DE10300613A1 DE 10300613 A1 DE10300613 A1 DE 10300613A1 DE 10300613 A DE10300613 A DE 10300613A DE 10300613 A DE10300613 A DE 10300613A DE 10300613 A1 DE10300613 A1 DE 10300613A1
Authority
DE
Germany
Prior art keywords
input power
additional input
tractor
released
transmission
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
DE10300613A
Other languages
German (de)
Inventor
Walter Dipl.-Ing. Fischer
Roland Dipl.-Ing. Fischer
Jürgen Dipl.-Ing. Pohlenz
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 DE10300613A priority Critical patent/DE10300613A1/en
Publication of DE10300613A1 publication Critical patent/DE10300613A1/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
    • F16H63/40—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
    • F16H63/50—Signals to an engine or motor
    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/184—Preventing damage resulting from overload or excessive wear of the driveline
    • B60W30/1846—Preventing of breakage of drive line components, e.g. parts of the gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001—Electric control of rotation speed
    • F02D31/007—Electric control of rotation speed controlling fuel supply
    • F02D31/009—Electric control of rotation speed controlling fuel supply for maximum speed control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0215—Introducing corrections for particular conditions exterior to the engine in relation with elements of the transmission
    • F02D41/0225—Introducing corrections for particular conditions exterior to the engine in relation with elements of the transmission in relation with the gear ratio or shift lever position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2409—Addressing techniques specially adapted therefor
    • F02D41/2422—Selective use of one or more tables
    • 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
    • B60W2300/00—Indexing codes relating to the type of vehicle
    • B60W2300/15—Agricultural vehicles
    • B60W2300/152—Tractors
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/20—Off-Road Vehicles
    • B60Y2200/22—Agricultural vehicles
    • B60Y2200/221—Tractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
    • F02D2200/501—Vehicle speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/18—Control of the engine output torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/18—Control of the engine output torque
    • F02D2250/26—Control of the engine output torque by applying a torque limit
    • 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
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The characteristic curve showing the power as a function of the revolutions of the engine rises slowly and stays constant after having reached a certain level when the gear units of the tractor are switched to a position appropriate for being used on a field. When the gears are switched to road use the curve drops again after having reached a peak. In order to keep the power at the higher level an additional input power is released, after having switched into gears not operated above capacity.

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Freigabe von Zusatzeingangsleistung für ein Getriebe eines Traktors gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a method for releasing additional input power for a transmission a tractor according to the preamble of claim 1.

Moderne Traktoren enthalten oft vollsynchronisierte Lastschaltgetriebe, welche in der Regel ein 3-Gang-Lastschaltsplitgetriebe, ein 4-Gang-Normalgetriebe mit zwei Gruppen, jeweils für Straßen- und Feldbetrieb, sowie eine 4-Gang-Kriechganggruppe umfassen. Dementsprechend sind üblicherweise in der Getriebesteuerung eine Feld- und eine Straßenkennlinie für die Eingangsleistung als Funktion der Drehzahl abgelegt.Modern tractors often contain fully synchronized ones Powershift transmissions, which are usually a 3-speed powershift split transmission, a 4-speed normal transmission with two groups, each for road and field operation, as well as a 4-speed creeper group. Accordingly, are common a field and a road characteristic in the transmission control for the Input power stored as a function of speed.

Um eine Überlastung der Getriebebauteile zu vermeiden, ist nach dem Stand der Technik die Eingangsleistung für das Getriebe durch die Feld-Kennlinie begrenzt. Die Freigabe einer generell höheren Eingangsleistung würde in einer Überbelastung der Bauteile resultieren. Dennoch ist oft, insbesondere für den Straßenbetrieb eine höhere Eingangsleistung erwünscht.In order to overload the gear components avoid, is the input power for the transmission according to the state of the art limited by the field characteristic. The release of a generally higher input power would in an overload of the components result. Nevertheless, is often, especially for road use a higher one Input power desired.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Freigabe von Zusatzeingangsleistung für ein Getriebe eines Traktors anzugeben, welches eine Überbelastung der Getriebebauteile vermeidet.The present invention lies the task is based on a procedure for releasing additional input power for a Specify the gearbox of a tractor, which overloads the gearbox components avoids.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere Ausgestaltungen und Vorteile gehen aus den Unteransprüchen hervor.This task is due to the characteristics of claim 1 solved. Further configurations and advantages emerge from the subclaims.

Demnach wird vorgeschlagen, Zusatzeingangsleistung ab einer definierten Geschwindigkeit im Straßenbetrieb freizugeben, bei der sichergestellt ist, dass das Getriebe sich in den Gängen befindet, in denen keine Überlastung stattfindet.Accordingly, it is proposed additional input power release at a defined speed in road operation, at who ensures that the transmission is in the gears, in which no overload takes place.

Bevorzugterweise ist diese Geschwindigkeit bei einem eingangs genannten Getriebe derart definiert, dass bei dieser Geschwindigkeit die Übersetzung des Splitgetriebes den Wert i = 1 angenommen hat. Auf diese Weise wird eine Überlastung der Getriebekomponenten weitestgehend vermieden. Im Rahmen einer vorteilhaften Weiterbildung des Verfahrens wird die Zusatzeingangsleistung nur im höchsten bzw. im vierten Gang freigegeben.This speed is preferably at a transmission mentioned at the beginning so defined that in this Speed the translation of the split transmission has assumed the value i = 1. In this way becomes an overload the transmission components largely avoided. As part of a An advantageous further development of the method is the additional input power only in the highest or released in fourth gear.

Die Zusatzeingangsleistung wird freigegeben, indem die Straßenkennlinie angewandt wird.The additional input power is released, by the road curve is applied.

In den beigefügten 1 und 2 ist jeweils eine typische Feldkennlinie bzw. Straßenkennlinie dargestellt. Die durchgezogene Kurve ist der Verlauf der Leistung als Funktion der Motordrehzahl; die gestrichelte Linie stellt den entsprechenden Verlauf des Drehmomentes dar. Aus den Figuren ist ersichtlich, dass sich die Verläufe ab ca. 2 000 Umdrehungen pro Minute unterscheiden; der Leistungsverlauf der Straßenkennlinie bleibt nahezu konstant, während bei der Feldkennlinie die Leistung ab 2 000 U/Min reduziert wird.In the attached 1 and 2 a typical field characteristic or road characteristic is shown in each case. The solid curve is the curve of the power as a function of the engine speed; the dashed line represents the corresponding curve of the torque. It can be seen from the figures that the curves differ from approximately 2,000 revolutions per minute; the performance curve of the road characteristic curve remains almost constant, while the performance of the field characteristic curve is reduced from 2,000 rpm.

Claims (4)

Verfahren zur Freigabe von Zusatzeingangsleistung für ein Getriebe eines Traktors, dadurch gekenn– zeichnet, dass Zusatzeingangsleistung ab einer definierten Geschwindigkeit im Straßenbetrieb freigegeben wird, bei der sichergestellt ist, dass das Getriebe sich in den Gängen befindet, in denen keine Überlastung stattfindet.Procedure for releasing additional input power for a Gearbox of a tractor, characterized by the fact that additional input power is released from a defined speed in road operation, ensuring that the transmission is in the gears, in which no overload takes place. Verfahren nach Anspruch 1, dadurch gekenn– zeichnet, dass für den Fall, dass das Getriebe ein Splitgetriebe umfasst, die Geschwindigkeit, ab der Zusatzeingangsleistung freigegeben wird, derart definiert ist, dass bei dieser Geschwindigkeit die Übersetzung des Splitgetriebes den Wert i = 1 aufweist.A method according to claim 1, characterized - characterized that for the case that the transmission includes a split transmission, the speed, from the additional input power is released, defined in this way is that at this speed the ratio of the split gear has the value i = 1. Verfahren nach Ansprüchen 1 und 2, dadurch ge– kennzeichnet, dass die Zusatzeingangsleistung nur im höchsten Gang freigegeben wird.A method according to claims 1 and 2, characterized - that the additional input power is only released in the highest gear. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Zusatzeingangsleistung freigegeben wird, indem die Straßenkennlinie der Getriebesteuerung angewandt wird.Method according to one of the preceding claims, characterized characterized that the additional input power is released, by the road curve the transmission control is applied.
DE10300613A 2003-01-10 2003-01-10 Method for application of additional input power on transmission gear of tractor Ceased DE10300613A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10300613A DE10300613A1 (en) 2003-01-10 2003-01-10 Method for application of additional input power on transmission gear of tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10300613A DE10300613A1 (en) 2003-01-10 2003-01-10 Method for application of additional input power on transmission gear of tractor

Publications (1)

Publication Number Publication Date
DE10300613A1 true DE10300613A1 (en) 2004-07-22

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Family Applications (1)

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DE10300613A Ceased DE10300613A1 (en) 2003-01-10 2003-01-10 Method for application of additional input power on transmission gear of tractor

Country Status (1)

Country Link
DE (1) DE10300613A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005037751A1 (en) * 2005-08-10 2007-02-15 Zf Friedrichshafen Ag Drive for e.g. agricultural tractor, has clutch that is controlled in one of performance curves during operation of mobile vehicle such that clutch is switched automatically to other curve when recognizing slippage state of driving motor
DE102009002369A1 (en) 2009-04-15 2010-10-21 Zf Friedrichshafen Ag Method for detecting e.g. performance-enhancing measures, in drive train of mobile vehicle, involves reducing requested performance when output performance is greater than requested performance such that maximum performance is not exceeded

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69617887T2 (en) * 1995-11-17 2002-04-25 Eaton Corp., Cleveland Torque control for powertrain
DE69707954T2 (en) * 1996-04-08 2002-06-27 Eaton Corp., Cleveland Torque control for a power transmission and thus a switchable transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69617887T2 (en) * 1995-11-17 2002-04-25 Eaton Corp., Cleveland Torque control for powertrain
DE69707954T2 (en) * 1996-04-08 2002-06-27 Eaton Corp., Cleveland Torque control for a power transmission and thus a switchable transmission

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005037751A1 (en) * 2005-08-10 2007-02-15 Zf Friedrichshafen Ag Drive for e.g. agricultural tractor, has clutch that is controlled in one of performance curves during operation of mobile vehicle such that clutch is switched automatically to other curve when recognizing slippage state of driving motor
DE102005037751B4 (en) 2005-08-10 2018-10-31 Zf Friedrichshafen Ag Drive for a mobile vehicle
DE102009002369A1 (en) 2009-04-15 2010-10-21 Zf Friedrichshafen Ag Method for detecting e.g. performance-enhancing measures, in drive train of mobile vehicle, involves reducing requested performance when output performance is greater than requested performance such that maximum performance is not exceeded

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: B60W 30/18 AFI20030110BHDE

8131 Rejection