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WO2018077477A3 - Method for operating a continuously variable transmission in a motor vehicle equipped therewith - Google Patents

Method for operating a continuously variable transmission in a motor vehicle equipped therewith Download PDF

Info

Publication number
WO2018077477A3
WO2018077477A3 PCT/EP2017/025166 EP2017025166W WO2018077477A3 WO 2018077477 A3 WO2018077477 A3 WO 2018077477A3 EP 2017025166 W EP2017025166 W EP 2017025166W WO 2018077477 A3 WO2018077477 A3 WO 2018077477A3
Authority
WO
WIPO (PCT)
Prior art keywords
motor vehicle
ratio
continuously variable
operating
engine
Prior art date
Application number
PCT/EP2017/025166
Other languages
French (fr)
Other versions
WO2018077477A2 (en
Inventor
Alexandre PIGEARD
Jens Lorrmann
Steffen Strauss
Antonius Adrianus Helena Maria Van Dongen
Lucas Hubertus Johannes RÖMERS
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201780037173.2A priority Critical patent/CN109311472B/en
Priority to JP2018565270A priority patent/JP6945565B2/en
Publication of WO2018077477A2 publication Critical patent/WO2018077477A2/en
Publication of WO2018077477A3 publication Critical patent/WO2018077477A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N5/00—Starting apparatus having mechanical power storage
    • F02N5/04—Starting apparatus having mechanical power storage of inertia type
    • 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
    • B60W10/107—Infinitely variable gearings with endless flexible members
    • 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
    • F16H61/0403—Synchronisation before shifting
    • 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
    • F16H61/66—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 specially adapted for continuously variable gearings
    • F16H61/662—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 specially adapted for continuously variable gearings with endless flexible members
    • F16H61/66254—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 specially adapted for continuously variable gearings with endless flexible members controlling of shifting being influenced by a signal derived from the engine and the main coupling
    • 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
    • F16H63/46—Signals to a clutch outside the gearbox
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/18—Propelling the vehicle
    • B60Y2300/18008—Propelling the vehicle related to particular drive situations
    • B60Y2300/18066—Coasting
    • B60Y2300/18083—Coasting without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • 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
    • F16H2306/54—Synchronizing engine speed to transmission 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
    • F16H2312/00—Driving activities
    • F16H2312/14—Going to, or coming from standby operation, e.g. for engine start-stop operation at traffic lights

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Control Of Transmission Device (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

The invention relates to a method for operating a continuously variable transmission (2) for transmitting mechanical energy between an internal combustion engine (1) and a driven wheel (3) in a motor vehicle at a transmission ratio that is continuously variable between a most deceleration speed ratio "LOW" and a most accelerating speed ratio "OD". In an operating mode of the motor vehicle wherein the engine (1) is switched off while the motor vehicle is still moving by opening a clutch (8) provided between the engine (1) and the driven wheel (3), the transmission ratio of the transmission is controlled to a value closer to the said most accelerating ratio "OD" then to the said most decelerating ratio "LOW" to enable a smooth restart of the engine (1) by the closing of the clutch (8) that is not or hardly noticeable by the motor vehicle occupant(s).
PCT/EP2017/025166 2016-06-14 2017-06-14 Method for operating a continuously variable transmission in a motor vehicle equipped therewith WO2018077477A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780037173.2A CN109311472B (en) 2016-06-14 2017-06-14 Method for operating a continuously variable transmission in a motor vehicle equipped with a continuously variable transmission
JP2018565270A JP6945565B2 (en) 2016-06-14 2017-06-14 A method for operating a continuously variable transmission in a motorized vehicle equipped with a continuously variable transmission.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1041928A NL1041928B1 (en) 2016-06-14 2016-06-14 Method for operating a continuously variable transmission in a motor vehicle equipped therewith
NL1041928 2016-06-14

Publications (2)

Publication Number Publication Date
WO2018077477A2 WO2018077477A2 (en) 2018-05-03
WO2018077477A3 true WO2018077477A3 (en) 2018-08-23

Family

ID=56990902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/025166 WO2018077477A2 (en) 2016-06-14 2017-06-14 Method for operating a continuously variable transmission in a motor vehicle equipped therewith

Country Status (4)

Country Link
JP (1) JP6945565B2 (en)
CN (1) CN109311472B (en)
NL (1) NL1041928B1 (en)
WO (1) WO2018077477A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3935291A1 (en) * 2019-03-06 2022-01-12 Robert Bosch GmbH Method for operating an electric vehicle powertrain with a continuously variable transmission

Citations (3)

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US20110054765A1 (en) * 2009-09-01 2011-03-03 Ford Global Technologies, Llc System and method for restarting an engine
EP2607648A1 (en) * 2010-08-20 2013-06-26 Toyota Jidosha Kabushiki Kaisha Control system for vehicle
JP2015068413A (en) * 2013-09-30 2015-04-13 日産自動車株式会社 Control device of engine automatic stop vehicle

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JPH0712811B2 (en) * 1985-11-25 1995-02-15 日産自動車株式会社 Controller for continuously variable transmission
JPH07117159B2 (en) * 1987-11-05 1995-12-18 本田技研工業株式会社 Shift control method for continuously variable transmission for vehicle
GB9415861D0 (en) * 1994-08-05 1994-09-28 Eaton Corp Start gear ratio selection system and method
EP1474623A2 (en) * 2002-02-07 2004-11-10 LuK Lamellen und Kupplungsbau Beteiligungs KG Methods for regulating the gear ratio of an automatic power-branched transmission, and automatic power-branched transmission
JP3685149B2 (en) * 2002-04-25 2005-08-17 トヨタ自動車株式会社 Vehicle drive control device
JP3778141B2 (en) * 2002-07-22 2006-05-24 トヨタ自動車株式会社 Vehicle drive device
DE102005006556A1 (en) * 2004-02-17 2005-09-08 Volkswagen Ag Clutches` actuating method for motor vehicle, involves triggering clutches during start of motor vehicle, such that clutches simultaneously and continuously transmit torque between drive shaft and output shaft
JP4270463B2 (en) * 2004-09-29 2009-06-03 本田技研工業株式会社 Shift control device for continuously variable transmission
JP4977566B2 (en) * 2007-09-27 2012-07-18 本田技研工業株式会社 Gear ratio control method for continuously variable transmission
DE102010008726A1 (en) * 2010-02-20 2011-08-25 Dr. Ing. h.c. F. Porsche Aktiengesellschaft, 70435 Method for operating a drive system for a motor vehicle
JP5388303B2 (en) * 2010-03-25 2014-01-15 富士重工業株式会社 Shift control device for continuously variable transmission
CN102959267B (en) * 2010-07-09 2015-05-20 本田技研工业株式会社 Automotive drive system and method for controlling same
WO2012128021A1 (en) * 2011-03-18 2012-09-27 本田技研工業株式会社 Engine control apparatus, and engine control method
JP5474857B2 (en) * 2011-03-23 2014-04-16 ジヤトコ株式会社 Control device for continuously variable transmission
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110054765A1 (en) * 2009-09-01 2011-03-03 Ford Global Technologies, Llc System and method for restarting an engine
EP2607648A1 (en) * 2010-08-20 2013-06-26 Toyota Jidosha Kabushiki Kaisha Control system for vehicle
JP2015068413A (en) * 2013-09-30 2015-04-13 日産自動車株式会社 Control device of engine automatic stop vehicle

Also Published As

Publication number Publication date
WO2018077477A2 (en) 2018-05-03
JP2019518918A (en) 2019-07-04
NL1041928B1 (en) 2017-12-21
CN109311472B (en) 2022-06-07
CN109311472A (en) 2019-02-05
JP6945565B2 (en) 2021-10-06

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