DE4122257C1 - - Google Patents

Info

Publication number
DE4122257C1
DE4122257C1 DE4122257A DE4122257A DE4122257C1 DE 4122257 C1 DE4122257 C1 DE 4122257C1 DE 4122257 A DE4122257 A DE 4122257A DE 4122257 A DE4122257 A DE 4122257A DE 4122257 C1 DE4122257 C1 DE 4122257C1
Authority
DE
Germany
Prior art keywords
switching
line
control valve
gear
pressure
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 - Lifetime
Application number
DE4122257A
Other languages
German (de)
English (en)
Inventor
Lutz Dr. Paulsen
Claus Bormann
Alfons 7000 Stuttgart De Mueller
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.)
Mercedes Benz Group AG
Original Assignee
Mercedes Benz 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 Mercedes Benz AG filed Critical Mercedes Benz AG
Priority to DE4122257A priority Critical patent/DE4122257C1/de
Priority to GB9213314A priority patent/GB2257482B/en
Priority to ITRM920494A priority patent/IT1254414B/it
Priority to JP4213151A priority patent/JP2811616B2/ja
Priority to FR9208247A priority patent/FR2678699B1/fr
Application granted granted Critical
Publication of DE4122257C1 publication Critical patent/DE4122257C1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means
    • F16H61/067—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means using an accumulator
    • 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
    • F16H61/20—Preventing gear creeping ; Transmission control during standstill, e.g. hill hold control
    • 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
    • F16H2061/0488—Smoothing ratio shift during range shift from neutral (N) to drive (D)
    • 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
    • F16H2312/02—Driving off

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Transmission Device (AREA)
  • Structure Of Transmissions (AREA)
DE4122257A 1991-07-05 1991-07-05 Expired - Lifetime DE4122257C1 (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE4122257A DE4122257C1 (sv) 1991-07-05 1991-07-05
GB9213314A GB2257482B (en) 1991-07-05 1992-06-23 Automatic selector device of an epicyclic change-speed gearbox of a motor vehicle
ITRM920494A IT1254414B (it) 1991-07-05 1992-06-30 Dispositivo automatico di commutazione per cambi di velocita' ad ingranaggi epicicloidali per autoveicoli
JP4213151A JP2811616B2 (ja) 1991-07-05 1992-07-02 自動車用遊星歯車変速機の変速段切換え装置
FR9208247A FR2678699B1 (fr) 1991-07-05 1992-07-03 Dispositif de mise en et hors service automatique d'un engrenage de changement de vitesse epicyclouidal d'un vehicule automobile.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4122257A DE4122257C1 (sv) 1991-07-05 1991-07-05

Publications (1)

Publication Number Publication Date
DE4122257C1 true DE4122257C1 (sv) 1992-12-03

Family

ID=6435488

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4122257A Expired - Lifetime DE4122257C1 (sv) 1991-07-05 1991-07-05

Country Status (5)

Country Link
JP (1) JP2811616B2 (sv)
DE (1) DE4122257C1 (sv)
FR (1) FR2678699B1 (sv)
GB (1) GB2257482B (sv)
IT (1) IT1254414B (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704642B1 (en) * 1994-09-30 1999-07-21 Mazda Motor Corporation Automatic transmission control system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2321352A1 (de) * 1973-04-27 1974-11-07 Volkswagenwerk Ag Hydraulische schaltungsanordnung zum selbsttaetigen umschalten eines automatischen kraftfahrzeuggetriebes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1004502A (en) * 1973-07-30 1977-02-01 General Motors Corporation Transmission and control
US4476745A (en) * 1981-09-14 1984-10-16 Ford Motor Company Control system for an automatic transmission having a neutral coast and idle feature
WO1990005858A1 (en) * 1984-07-31 1990-05-31 Koji Sumiya Hydraulic servo mechanism for automatic vehicular transmissions
US4840092A (en) * 1986-06-30 1989-06-20 Aisin-Warner Kabushiki Kaisha Hydraulic control device for automatic transmissions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2321352A1 (de) * 1973-04-27 1974-11-07 Volkswagenwerk Ag Hydraulische schaltungsanordnung zum selbsttaetigen umschalten eines automatischen kraftfahrzeuggetriebes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0704642B1 (en) * 1994-09-30 1999-07-21 Mazda Motor Corporation Automatic transmission control system

Also Published As

Publication number Publication date
GB2257482B (en) 1995-05-17
GB2257482A (en) 1993-01-13
JPH05209675A (ja) 1993-08-20
IT1254414B (it) 1995-09-14
GB9213314D0 (en) 1992-08-05
ITRM920494A0 (it) 1992-06-30
FR2678699A1 (fr) 1993-01-08
FR2678699B1 (fr) 1995-10-13
ITRM920494A1 (it) 1993-12-30
JP2811616B2 (ja) 1998-10-15

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DAIMLER-BENZ AKTIENGESELLSCHAFT, 70567 STUTTGART,

8327 Change in the person/name/address of the patent owner

Owner name: DAIMLERCHRYSLER AG, 70567 STUTTGART, DE

8339 Ceased/non-payment of the annual fee