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IT1154075B - SAFETY DEVICE FOR GEAR TRANSMISSION WITH ELECTRONIC HYDRAULIC CONTROL FOR VEHICLES - Google Patents

SAFETY DEVICE FOR GEAR TRANSMISSION WITH ELECTRONIC HYDRAULIC CONTROL FOR VEHICLES

Info

Publication number
IT1154075B
IT1154075B IT46877/80A IT4687780A IT1154075B IT 1154075 B IT1154075 B IT 1154075B IT 46877/80 A IT46877/80 A IT 46877/80A IT 4687780 A IT4687780 A IT 4687780A IT 1154075 B IT1154075 B IT 1154075B
Authority
IT
Italy
Prior art keywords
vehicles
safety device
hydraulic control
gear transmission
electronic hydraulic
Prior art date
Application number
IT46877/80A
Other languages
Italian (it)
Other versions
IT8046877A1 (en
IT8046877A0 (en
Inventor
Josef Schwarz
Walter Frei
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 IT8046877A0 publication Critical patent/IT8046877A0/en
Publication of IT8046877A1 publication Critical patent/IT8046877A1/en
Application granted granted Critical
Publication of IT1154075B publication Critical patent/IT1154075B/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
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • 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
    • F16H61/70—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 change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements
    • F16H61/702—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 change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements using electric or electrohydraulic control means
    • 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
    • F16H59/68—Inputs being a function of gearing status
    • F16H2059/683—Sensing pressure in control systems or in fluid controlled devices, e.g. by pressure sensors
    • 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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0202—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 characterised by the signals used the signals being electric
    • F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
    • F16H2061/026—On-off solenoid valve
    • 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
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
    • 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
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1232—Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios
    • 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
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/126—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the controller
    • F16H2061/1264—Hydraulic parts of the controller, e.g. a sticking valve or clogged channel
    • 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
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
    • F16H2061/126—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is the controller
    • F16H2061/1268—Electric parts of the controller, e.g. a defect solenoid, wiring or microprocessor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
IT46877/80A 1979-09-15 1980-09-15 SAFETY DEVICE FOR GEAR TRANSMISSION WITH ELECTRONIC HYDRAULIC CONTROL FOR VEHICLES IT1154075B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2937367A DE2937367C2 (en) 1979-09-15 1979-09-15 Safety device for a step change gear

Publications (3)

Publication Number Publication Date
IT8046877A0 IT8046877A0 (en) 1980-09-15
IT8046877A1 IT8046877A1 (en) 1982-03-15
IT1154075B true IT1154075B (en) 1987-01-21

Family

ID=6080961

Family Applications (1)

Application Number Title Priority Date Filing Date
IT46877/80A IT1154075B (en) 1979-09-15 1980-09-15 SAFETY DEVICE FOR GEAR TRANSMISSION WITH ELECTRONIC HYDRAULIC CONTROL FOR VEHICLES

Country Status (6)

Country Link
JP (1) JPS5646151A (en)
DE (1) DE2937367C2 (en)
FR (1) FR2464848A1 (en)
GB (1) GB2058967A (en)
HU (1) HU183209B (en)
IT (1) IT1154075B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414026A (en) * 1981-07-30 1983-11-08 Nippon Kokan Kabushiki Kaisha Method for the production of ferrochromium
JPS58146749A (en) * 1982-02-22 1983-09-01 Mazda Motor Corp Double lock detecting device of compound clutch type multistage speed change gear
DE3239927A1 (en) * 1982-10-28 1984-05-03 Porsche Ag DEVICE FOR CONTROLLING A FOLLOW-UP ACTUATION FOR A DOUBLE CLUTCH
JPS60206730A (en) * 1984-03-30 1985-10-18 Jidosha Kiki Co Ltd Diagnosis device of speed change gear remote handling equipment
JP2668359B2 (en) * 1987-06-24 1997-10-27 株式会社小松製作所 Transmission control device
WO1988010380A1 (en) * 1987-06-24 1988-12-29 Kabushiki Kaisha Komatsu Seisakusho Transmission controller
JP3461304B2 (en) * 1999-03-30 2003-10-27 本田技研工業株式会社 Control device for automatic transmission
JP3523523B2 (en) * 1999-04-27 2004-04-26 本田技研工業株式会社 Control device for automatic transmission
JP3736604B2 (en) * 1999-08-20 2006-01-18 ジヤトコ株式会社 Automatic transmission failure speed change control device
DE102013215906A1 (en) * 2013-08-12 2015-02-12 Zf Friedrichshafen Ag Method and control device for operating an assembly of a vehicle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067313B (en) *
FR2266061B1 (en) * 1974-03-29 1979-02-16 Berliet Automobiles
US3894606A (en) * 1974-10-23 1975-07-15 Deere & Co Control system for hydrostatic drive tractors
GB1493191A (en) * 1975-01-02 1977-11-23 Texas Instruments Ltd Controlled mechanical system
DE2700962C3 (en) * 1977-01-12 1981-10-29 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Electrohydraulic Gagnwechseleinrichutng a power shift transmission for motor vehicles
GB1589444A (en) * 1977-10-12 1981-05-13 Ford Motor Co Electrical communication system

Also Published As

Publication number Publication date
IT8046877A1 (en) 1982-03-15
HU183209B (en) 1984-04-28
FR2464848A1 (en) 1981-03-20
GB2058967A (en) 1981-04-15
DE2937367C2 (en) 1984-04-26
IT8046877A0 (en) 1980-09-15
JPS5646151A (en) 1981-04-27
DE2937367A1 (en) 1981-04-02

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