GB1493335A - Downshift control circuit for hydraulically controlled variable-ratio transmission - Google Patents

Downshift control circuit for hydraulically controlled variable-ratio transmission

Info

Publication number
GB1493335A
GB1493335A GB13346/75A GB1334675A GB1493335A GB 1493335 A GB1493335 A GB 1493335A GB 13346/75 A GB13346/75 A GB 13346/75A GB 1334675 A GB1334675 A GB 1334675A GB 1493335 A GB1493335 A GB 1493335A
Authority
GB
United Kingdom
Prior art keywords
downshift
contacts
depression
switch
solenoid
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.)
Expired
Application number
GB13346/75A
Other languages
English (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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1493335A publication Critical patent/GB1493335A/en
Expired 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
    • F16H61/21—Providing engine brake control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/103—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with other control devices
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
    • 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
    • F16H61/0204—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 for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of valves
    • 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
    • F16H59/20—Kickdown
    • 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
    • F16H59/22—Idle position
    • 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
    • F16H59/54—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Control Of Transmission Device (AREA)
GB13346/75A 1974-04-25 1975-04-01 Downshift control circuit for hydraulically controlled variable-ratio transmission Expired GB1493335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49045971A JPS50139269A (enExample) 1974-04-25 1974-04-25

Publications (1)

Publication Number Publication Date
GB1493335A true GB1493335A (en) 1977-11-30

Family

ID=12734099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13346/75A Expired GB1493335A (en) 1974-04-25 1975-04-01 Downshift control circuit for hydraulically controlled variable-ratio transmission

Country Status (5)

Country Link
US (1) US3974720A (enExample)
JP (1) JPS50139269A (enExample)
DE (1) DE2518075A1 (enExample)
FR (1) FR2268661B1 (enExample)
GB (1) GB1493335A (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5259265A (en) * 1975-11-12 1977-05-16 Nissan Motor Co Ltd Automatic transmission with downshift maintaining mechanism
JPS5281468A (en) * 1975-12-27 1977-07-07 Nissan Motor Co Ltd Automatic transmission
JPS5287568A (en) * 1976-01-13 1977-07-21 Nissan Motor Co Ltd Down-shift control apparatus for automatic transmission
JPS6025668B2 (ja) * 1977-06-16 1985-06-19 トヨタ自動車株式会社 自動変速機の油圧制御装置
AU525952B2 (en) * 1978-01-24 1982-12-09 Lahive, John A. Mechanical automatic transmission
US4361060A (en) * 1978-01-24 1982-11-30 Smyth Robert Ralston Mechanical automatic transmission
NL192800C (nl) * 1978-01-24 1998-02-03 Lahive John Anthony Elektronische stuurinrichting voor een automatisch overbrengingsmechanisme van een voertuig.
US4350234A (en) * 1979-02-02 1982-09-21 Nissan Motor Co., Ltd. Automatic transmission system provided with a function of engine brake
DE3139985A1 (de) * 1981-07-15 1983-02-03 Bosch Gmbh Robert Verfahren zum steuern von automatischen getrieben in kraftfahrzeugen
DE3139838C2 (de) * 1981-10-07 1995-11-30 Bosch Gmbh Robert Steuervorrichtung für ein Automatikgetriebe in einem Kraftfahrzeug
DE3334718A1 (de) * 1983-09-26 1985-04-04 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Getriebesteuerung fuer ein strassenfahrzeug
US4576065A (en) * 1984-09-12 1986-03-18 Eaton Corporation Automatic transmission controls with multiple downshift off-highway mode
US4569255A (en) * 1984-09-12 1986-02-11 Eaton Corporation Automatic transmission controls with off-highway mode
JPS61235242A (ja) * 1985-04-12 1986-10-20 Mitsubishi Motors Corp 自動変速装置の変速制御方法
US4698763A (en) * 1985-03-15 1987-10-06 Eaton Corporation Automatic mechanical transmission control
JP2598267B2 (ja) * 1987-06-19 1997-04-09 富士重工業株式会社 アンチロックブレーキ装置付車両の変速機制御装置
JPS6449745A (en) * 1987-08-21 1989-02-27 Toyota Motor Corp Failure judging device for kick-down switch of automatic transmission
US4874070A (en) * 1988-02-10 1989-10-17 Eaton Corporation Control for AMT system start from stop operation
GB9505176D0 (en) * 1995-03-15 1995-05-03 Automotive Products Plc Vehicle transmissions
KR20030018869A (ko) * 2001-08-31 2003-03-06 현대자동차주식회사 자동 변속 차량의 변속 모드 제어장치 및 방법
US7853385B2 (en) * 2007-08-10 2010-12-14 Toyota Motor Engineering & Manufacturing North America, Inc. Systems and methods for controlling transmission shifting during vehicle braking along a decline

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907423A (en) * 1955-03-02 1959-10-06 Eaton Mfg Co Transmission control system
US2878885A (en) * 1957-07-24 1959-03-24 Hamm Fred Emergency vehicle brake device
FR1423015A (fr) * 1964-11-17 1966-01-03 Renault Dispositif automatique de changement de vitesses pour véhicules automobiles
FR1600304A (enExample) * 1968-12-31 1970-07-20
JPS4842134B1 (enExample) * 1970-04-19 1973-12-11
JPS5220630B1 (enExample) * 1971-02-08 1977-06-04
JPS5442060B2 (enExample) * 1972-07-12 1979-12-12

Also Published As

Publication number Publication date
US3974720A (en) 1976-08-17
DE2518075A1 (de) 1975-11-13
FR2268661A1 (enExample) 1975-11-21
FR2268661B1 (enExample) 1977-11-25
JPS50139269A (enExample) 1975-11-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee