GB0312020D0 - Shift control apparatus of working vehicle - Google Patents

Shift control apparatus of working vehicle

Info

Publication number
GB0312020D0
GB0312020D0 GBGB0312020.1A GB0312020A GB0312020D0 GB 0312020 D0 GB0312020 D0 GB 0312020D0 GB 0312020 A GB0312020 A GB 0312020A GB 0312020 D0 GB0312020 D0 GB 0312020D0
Authority
GB
United Kingdom
Prior art keywords
time
speed stage
brake
shift control
turned
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
GBGB0312020.1A
Other versions
GB2385895A (en
GB2385895B (en
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.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
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
Priority claimed from JP11107753A external-priority patent/JP2000296730A/en
Priority claimed from JP11061099A external-priority patent/JP2000304126A/en
Priority claimed from JP11557099A external-priority patent/JP2000304124A/en
Priority claimed from JP17168099A external-priority patent/JP4265708B2/en
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority claimed from GB0008621A external-priority patent/GB2349926B/en
Publication of GB0312020D0 publication Critical patent/GB0312020D0/en
Publication of GB2385895A publication Critical patent/GB2385895A/en
Application granted granted Critical
Publication of GB2385895B publication Critical patent/GB2385895B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/061—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal 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
    • 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
    • F16H59/38—Inputs being a function of speed of gearing elements
    • F16H2059/405—Rate of change of output shaft speed or vehicle 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
    • 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
    • F16H59/38—Inputs being a function of speed of gearing elements
    • F16H59/42—Input shaft speed
    • F16H2059/425—Rate of change of input or turbine shaft 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
    • 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
    • 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
    • F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
    • F16H2061/161—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed by checking feasibility of shifts, i.e. determine if requested shift can be successfully completed and post shift values are in an acceptable range
    • 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
    • F16H2302/00—Determining the way or trajectory to new ratio, e.g. by determining speed, torque or time parameters for shift transition
    • F16H2302/04—Determining a modus for 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
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • 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
    • F16H59/38—Inputs being a function of speed of gearing elements
    • F16H59/40—Output shaft 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
    • F16H59/52—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

The invention provides a shift control apparatus of a working vehicle in which an excellent shift operability can be obtained without reference to an incline of a travelling road, a loading amount and a road condition without necessity of learning a time for controlling an engine. Accordingly, a brake pedal operation detector (19) is provided which detects an operation of the brake pedal (17) and outputs a brake operation signal (Br). Additionally, braking time shift control means (32) is provided to keep the speed stage at a time when the brake operation signal (Br) is turned on and to shift the speed stage from the speed stage at the on time (TBon) to the speed stage corresponding to the transmission output shaft rotational speed (No) at a time when the brake is turned off, when the brake operation signal (Br) is turned off from the on state without passing through the other speed stage.
GB0312020A 1999-04-15 2000-04-08 Shift control apparatus of working vehicle Expired - Fee Related GB2385895B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP11107753A JP2000296730A (en) 1999-04-15 1999-04-15 Shift control device of work vehicle
JP11061099A JP2000304126A (en) 1999-04-19 1999-04-19 Gear shift control device for working vehicle
JP11557099A JP2000304124A (en) 1999-04-22 1999-04-22 Gear shift control device for working vehicle
JP17168099A JP4265708B2 (en) 1999-06-17 1999-06-17 Shift control device for work vehicle
GB0008621A GB2349926B (en) 1999-04-15 2000-04-08 Shift control apparatus of working vehicle

Publications (3)

Publication Number Publication Date
GB0312020D0 true GB0312020D0 (en) 2003-07-02
GB2385895A GB2385895A (en) 2003-09-03
GB2385895B GB2385895B (en) 2003-11-05

Family

ID=27671125

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0312020A Expired - Fee Related GB2385895B (en) 1999-04-15 2000-04-08 Shift control apparatus of working vehicle
GB0312019A Expired - Fee Related GB2385894B (en) 1999-04-15 2000-04-08 Shift control apparatus of working vehicle

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0312019A Expired - Fee Related GB2385894B (en) 1999-04-15 2000-04-08 Shift control apparatus of working vehicle

Country Status (1)

Country Link
GB (2) GB2385895B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009099884A2 (en) * 2008-01-31 2009-08-13 Caterpillar Inc. Transmission downshift control system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6447470A (en) * 1987-08-13 1989-02-21 Canon Kk Applicator
DE68919936T2 (en) * 1988-08-06 1995-05-04 Honda Motor Co Ltd Gear shift control device in automatic transmissions.
JPH03199767A (en) * 1989-12-26 1991-08-30 Komatsu Ltd Speed shift method for speed shift device equipped with torque converter with directly connected clutch
US5287773A (en) * 1992-01-31 1994-02-22 Toyota Jidosha Kabushiki Kaisha Apparatus for controlling engine brake force during vehicle running on downhill with released accelerator
JPH08135786A (en) * 1994-11-08 1996-05-31 Nissan Diesel Motor Co Ltd Automatic transmission for vehicle
JP3467934B2 (en) * 1995-10-26 2003-11-17 ジヤトコ株式会社 Downshift control device for automatic transmission
JP3477954B2 (en) * 1995-11-17 2003-12-10 日産自動車株式会社 Transmission control device for continuously variable transmission
JP3377374B2 (en) * 1996-07-31 2003-02-17 ジヤトコ株式会社 Downshift control device for automatic transmission
JP3001859B1 (en) * 1998-08-18 2000-01-24 本田技研工業株式会社 Transmission control device for continuously variable transmission for vehicles
DE10059276B4 (en) * 1999-12-23 2014-06-05 Schaeffler Technologies Gmbh & Co. Kg Motor vehicle and method for operating a motor vehicle
US6537177B2 (en) * 2000-12-20 2003-03-25 Caterpillar Inc Overspeed prevention

Also Published As

Publication number Publication date
GB2385894A (en) 2003-09-03
GB0312019D0 (en) 2003-07-02
GB2385894B (en) 2003-11-05
GB2385895A (en) 2003-09-03
GB2385895B (en) 2003-11-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090408