SE0400487D0 - Control procedures for improving switching speed and switching comfort for automatic operation - Google Patents

Control procedures for improving switching speed and switching comfort for automatic operation

Info

Publication number
SE0400487D0
SE0400487D0 SE0400487A SE0400487A SE0400487D0 SE 0400487 D0 SE0400487 D0 SE 0400487D0 SE 0400487 A SE0400487 A SE 0400487A SE 0400487 A SE0400487 A SE 0400487A SE 0400487 D0 SE0400487 D0 SE 0400487D0
Authority
SE
Sweden
Prior art keywords
switching
automatic operation
control procedures
comfort
improving
Prior art date
Application number
SE0400487A
Other languages
Swedish (sv)
Other versions
SE526556C2 (en
SE0400487L (en
Inventor
Otto Lutz
Markus Eisele
Harry Nolzen
Torsten Buechner
Original Assignee
Zahnradfabrik Friedrichshafen
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 Zahnradfabrik Friedrichshafen filed Critical Zahnradfabrik Friedrichshafen
Publication of SE0400487D0 publication Critical patent/SE0400487D0/en
Publication of SE0400487L publication Critical patent/SE0400487L/en
Publication of SE526556C2 publication Critical patent/SE526556C2/en

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
    • F16H61/04—Smoothing ratio shift
    • F16H61/08—Timing control
    • 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
    • F16H59/36—Inputs being a function of speed
    • F16H59/46—Inputs being a function of speed dependent on a comparison between speeds
    • F16H2059/462—Detecting synchronisation, i.e. speed difference is approaching zero
    • 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
    • F16H61/04—Smoothing ratio shift
    • F16H2061/0444—Smoothing ratio shift during fast shifting over two gearsteps, e.g. jumping from fourth to second gear
    • 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
    • F16H2306/00—Shifting
    • F16H2306/14—Skipping gear shift
    • 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
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities
    • F16H2306/44—Removing torque from current gears
    • 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
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities
    • F16H2306/52—Applying torque to new gears
    • 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
    • F16H59/36—Inputs being a function of speed
    • F16H59/46—Inputs being a function of speed dependent on a comparison between speeds

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

Automatic gear change control method in which the gear change element that is to be disconnected is free from a control pressure or torque before a synchronized rotation speed is reached, while the gear change element that is to be connected takes up a part of the torque before the synchronized rotation speed is reached. When the synchronized rotation speed is reached it transmits the whole torque
SE0400487A 2003-05-13 2004-03-01 Control method for improving the speed of transmission and the shifting comfort of an automatic transmission SE526556C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003121281 DE10321281A1 (en) 2003-05-13 2003-05-13 Automatic gearbox gear change method for either changing up or down in which torque transfer to the new gear change element commences before synchronized rotation speeds are achieved

Publications (3)

Publication Number Publication Date
SE0400487D0 true SE0400487D0 (en) 2004-03-01
SE0400487L SE0400487L (en) 2004-11-14
SE526556C2 SE526556C2 (en) 2005-10-04

Family

ID=31984505

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0400487A SE526556C2 (en) 2003-05-13 2004-03-01 Control method for improving the speed of transmission and the shifting comfort of an automatic transmission

Country Status (2)

Country Link
DE (1) DE10321281A1 (en)
SE (1) SE526556C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005036627A1 (en) * 2005-08-04 2007-02-08 Volkswagen Ag Method for control of power shift transmission, comprises selective use of two slip regulated clutch units
JP4257328B2 (en) * 2005-12-26 2009-04-22 ジヤトコ株式会社 Control device for automatic transmission
DE102006028252A1 (en) * 2006-06-20 2007-12-27 Zf Friedrichshafen Ag Motor vehicle`s e.g. rail car, continuously variable automatic transmission operating method, involves controlling switching unit dependent on whether shifting up and/or shifting-in is implemented as single circuit or multiple circuits
DE102012208155B4 (en) * 2012-05-15 2021-05-06 Bayerische Motoren Werke Aktiengesellschaft Method and device for performing a downshift

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2615995B2 (en) * 1989-04-17 1997-06-04 日産自動車株式会社 Transmission control device for automatic transmission
DE10035479B4 (en) * 2000-07-21 2011-12-29 Zf Friedrichshafen Ag Method for improving the switching speed

Also Published As

Publication number Publication date
SE526556C2 (en) 2005-10-04
SE0400487L (en) 2004-11-14
DE10321281A1 (en) 2004-12-02

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Legal Events

Date Code Title Description
NUG Patent has lapsed