YU50490A - Zaustavljač zavisan od broja obrtaja motora, za sprečavanje nedopuštenih povratnih uključivanja u menjačima motornih vozila - Google Patents

Zaustavljač zavisan od broja obrtaja motora, za sprečavanje nedopuštenih povratnih uključivanja u menjačima motornih vozila

Info

Publication number
YU50490A
YU50490A YU50490A YU50490A YU50490A YU 50490 A YU50490 A YU 50490A YU 50490 A YU50490 A YU 50490A YU 50490 A YU50490 A YU 50490A YU 50490 A YU50490 A YU 50490A
Authority
YU
Yugoslavia
Prior art keywords
control valve
engine speed
piston
gear change
valve
Prior art date
Application number
YU50490A
Other languages
English (en)
Inventor
H. Eymuller
S. Stutzle
J. Legner
G. Buck
Original Assignee
Zahnradfabrik Friedrichshafen Ag.
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 Ag. filed Critical Zahnradfabrik Friedrichshafen Ag.
Publication of YU50490A publication Critical patent/YU50490A/sh

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
    • F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over 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
    • F16H61/02—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
    • F16H61/0262—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 hydraulic
    • F16H61/0265—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 hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
    • F16H61/0267—Layout of 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
    • 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
    • F16H2061/0253—Details of electro hydraulic valves, e.g. lands, ports, spools or springs
    • 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
    • F16H2061/165—Preventing reverse gear shifts if vehicle speed is too high for safe shifting

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Control Of Fluid Gearings (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Zaustavljač zavisan od broja obrtaja motora za sprečavanje nedopuštenih povratnih uključivanja u menjačima motornih vozila sadrži prekidački ventil (1) i upravljački ventil (2), koji oba imaju dva prekidačka položaja. Jedan prekidački položaj upravljačkog ventila (2) je podešen preko pritiska, koji dejstvuje na klipnu površinu (36) klipa (31) upravljačkog ventila i koji prekoračuje jednu unapred odredjenu vrednost pumpe (20) niskog pritiska koja radi zavisno od broja obrtaja motora. Upravljački ventil (2) je u kontaktu isključivo s hidrauličnom tečnosti postikivanom pumpom (20) niskog pritiska i upravlja velikom čeonom površinom (40) i prstenastom površinom (41) klipa (38) prekidačkog ventila izvedenog u vidu stepenastog klipa. A ko se kod uključene brze promene prenosa, i kod jednog broja obrtaja motora, koji je iznad jedne odredjene granične vrednosti, ventil (7) za promenu prenosa pomeri u svoj položaj za laganu promenu prenosa, tada se preko prekidačkog ventila (1) sprečava stavljanje pod pritisak prekidačkog uredjaja (15) za laganu promenu prenosa. Istovremeno pokretački uredjaj (16) za brzu promenu prenosa ostaje pod prekidačkim pritiskom, tako da brza promena prenosa ostaje uključena.
YU50490A 1989-04-08 1990-03-14 Zaustavljač zavisan od broja obrtaja motora, za sprečavanje nedopuštenih povratnih uključivanja u menjačima motornih vozila YU50490A (sh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3911519 1989-04-08

Publications (1)

Publication Number Publication Date
YU50490A true YU50490A (sh) 1994-01-20

Family

ID=6378218

Family Applications (1)

Application Number Title Priority Date Filing Date
YU50490A YU50490A (sh) 1989-04-08 1990-03-14 Zaustavljač zavisan od broja obrtaja motora, za sprečavanje nedopuštenih povratnih uključivanja u menjačima motornih vozila

Country Status (8)

Country Link
US (1) US5172611A (sh)
EP (1) EP0466750B1 (sh)
JP (1) JP2957270B2 (sh)
KR (1) KR0148001B1 (sh)
DE (1) DE59003807D1 (sh)
ES (1) ES2047923T3 (sh)
WO (1) WO1990012228A1 (sh)
YU (1) YU50490A (sh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130265C2 (de) * 1991-09-12 2003-08-07 Bayerische Motoren Werke Ag Gangwechselsteuerung in Kraftfahrzeugen
JPH07217736A (ja) * 1993-12-27 1995-08-15 Daewoo Heavy Ind Co Ltd 車両用変速機のダウンシフト防止装置
DE4414141A1 (de) * 1994-04-22 1995-10-26 Zahnradfabrik Friedrichshafen Hydraulische Schalteinrichtung für ein mehrgängiges Fahrzeuggetriebe
US7416265B2 (en) 2002-11-26 2008-08-26 Caterpillar Inc. Apparatus and method for varying brake response of a vehicle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1946496C3 (de) * 1969-09-13 1979-10-11 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Fahrgeschwindigkeitsabhängige Sperre zum Verhindern unzulässiger Rückschaltungen in Kraftfahrzeug-Wechselgetrieben
DE2040195C3 (de) * 1969-09-13 1980-08-21 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Fahrgeschwindigkeitsabhängige Sperre zum Verhindern unzulässiger Rückschaltungen in Kraftfahrzeugwechselgetrieben
US3937107A (en) * 1974-12-23 1976-02-10 General Motors Corporation Downshift inhibitor for a powershift transmission
DE2604593C3 (de) * 1976-02-06 1978-10-05 Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Hydraulische Steuerungseinrichtung mit Vorwahl für Wendeschaltgetriebe
US4438666A (en) * 1981-12-16 1984-03-27 Eaton Corporation Speed responsive reverse control
HU193455B (en) * 1984-12-28 1987-10-28 Ustav Pro Vyzkum Motorovych Vo Hydraulic coupling arrangement for controlling the automatic two gear ratio transmission machinery of motor vehicles
BR8707685A (pt) * 1986-05-02 1989-08-15 Zahnradfabrik Friedrichshafen Comando eletro-hidraulico para uma transmissao automatica
JP2689421B2 (ja) * 1987-02-25 1997-12-10 三菱自動車工業株式会社 車両用自動変速機の油圧制御装置
JPH028551A (ja) * 1988-06-27 1990-01-12 Daikin Mfg Co Ltd 自動車変速機の変速段切り換え制御装置

Also Published As

Publication number Publication date
US5172611A (en) 1992-12-22
JPH04504459A (ja) 1992-08-06
EP0466750B1 (de) 1993-12-08
EP0466750A1 (de) 1992-01-22
DE59003807D1 (de) 1994-01-20
KR920701722A (ko) 1992-08-12
WO1990012228A1 (de) 1990-10-18
ES2047923T3 (es) 1994-03-01
KR0148001B1 (ko) 1998-08-17
JP2957270B2 (ja) 1999-10-04

Similar Documents

Publication Publication Date Title
US3985063A (en) Hydraulic control system
KR860008393A (ko) 차량용 자동변속장치
US4281676A (en) Pressure modulating selector valve
EP0840008A4 (en) CONTROL DEVICE FOR A VARIABLE CYLINDERED HYDRAULIC PUMP
SE7710520L (sv) Regleringsanordning for en hydraulmotor
EP0603421A4 (sh)
GB1401825A (en) Hydraulic control device
KR890009678A (ko) 유압조작이 가능한 변속수단을 구비한 작업차용 유압제어 회로
YU50490A (sh) Zaustavljač zavisan od broja obrtaja motora, za sprečavanje nedopuštenih povratnih uključivanja u menjačima motornih vozila
KR900702273A (ko) 자동으로 절환하고 있는 자동차 변속장치의 전유제어장치
ES2101233T3 (es) Dispositivo de cambio de velocidades accionado por fluido a presion de dos fuerzas.
KR920008374A (ko) 변속기의 전진/후진 작동용 서어보 조절장치
KR890017102A (ko) 동력 인출 제어장치
CA1089327A (en) Control system for a fluid drive
GB1279575A (en) Improvements in or relating to automatic clutch control device for motor vehicles
GB1330318A (en) Speed change mechanism
JPS5519679A (en) Power steering gear
KR960700424A (ko) 전기 유압식 변속 장치 제어 방법(Electrohydraulic variable-speed gearing control)
DE3878637D1 (de) Stufenlos hydraulisches getriebe mit sperrventil.
GB1537408A (en) Control system for an automatic power transmission
JPS5718819A (en) Clutch disengaging device for vehicle
GB1310351A (en) Hydrostatic transmission systems
ES361275A1 (es) Dispositivo corrector hidraulico de mando.
CA1132433A (en) Mechanical detent for three speed power shift transmission
JPS56101445A (en) Oil-hydraulic clutch device