DE3873339D1 - Modulierendes ventil zwecks langsamfahrt bei automatischer drucksteuerung in einem getriebesteuersystem. - Google Patents

Modulierendes ventil zwecks langsamfahrt bei automatischer drucksteuerung in einem getriebesteuersystem.

Info

Publication number
DE3873339D1
DE3873339D1 DE8989901973T DE3873339T DE3873339D1 DE 3873339 D1 DE3873339 D1 DE 3873339D1 DE 8989901973 T DE8989901973 T DE 8989901973T DE 3873339 T DE3873339 T DE 3873339T DE 3873339 D1 DE3873339 D1 DE 3873339D1
Authority
DE
Germany
Prior art keywords
automatic pressure
modulating valve
control system
slow running
pressure control
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
DE8989901973T
Other languages
English (en)
Inventor
W Blake
R Coutant
F Golan
C Morris
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.)
Caterpillar Inc
Original Assignee
Caterpillar Inc
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 Caterpillar Inc filed Critical Caterpillar Inc
Application granted granted Critical
Publication of DE3873339D1 publication Critical patent/DE3873339D1/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D48/0206—Control by fluid pressure in a system with a plurality of fluid-actuated clutches
    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18063—Creeping
    • 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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/14—Fluid pressure 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0221—Valves for clutch control systems; Details thereof
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
    • F16D2048/0269—Single valve for switching between fluid supply to actuation cylinder or draining to the sump
    • 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
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/702—Look-up tables
    • F16D2500/70294—Valve look-up tables

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Control Of Fluid Gearings (AREA)
DE8989901973T 1988-02-26 1988-11-16 Modulierendes ventil zwecks langsamfahrt bei automatischer drucksteuerung in einem getriebesteuersystem. Expired - Lifetime DE3873339D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/160,958 US4865176A (en) 1988-02-26 1988-02-26 Modulating inching valve with automatic pressure control
PCT/US1988/004089 WO1989008208A1 (en) 1988-02-26 1988-11-16 Modulating inching valve with automatic pressure control

Publications (1)

Publication Number Publication Date
DE3873339D1 true DE3873339D1 (de) 1992-09-03

Family

ID=22579200

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8989901973T Expired - Lifetime DE3873339D1 (de) 1988-02-26 1988-11-16 Modulierendes ventil zwecks langsamfahrt bei automatischer drucksteuerung in einem getriebesteuersystem.

Country Status (7)

Country Link
US (1) US4865176A (de)
EP (1) EP0364513B1 (de)
JP (1) JPH02503345A (de)
KR (1) KR960016792B1 (de)
CA (1) CA1295915C (de)
DE (1) DE3873339D1 (de)
WO (1) WO1989008208A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101943A (en) * 1990-11-30 1992-04-07 Ford New Holland, Inc. Method of controlling inching clutches
DE4100672C1 (de) * 1991-01-11 1992-02-20 Mannesmann Rexroth Gmbh, 8770 Lohr, De
DE19815889A1 (de) * 1998-04-08 1999-10-14 Mannesmann Rexroth Ag Inchbremseinrichtung
US6647332B1 (en) * 1998-12-21 2003-11-11 Caterpillar Inc Electronic inching control strategy
US6640950B2 (en) 2001-12-28 2003-11-04 Caterpillar Inc. Fluid clutch fill detection system and method
DE10302054B4 (de) * 2003-01-21 2018-10-25 Robert Bosch Gmbh Verfahren zum Betreiben einer Brennkraftmaschine
US7361121B2 (en) * 2004-08-30 2008-04-22 Komatsu Ltd. Control device and method for input clutch of work vehicle
DE102008045264A1 (de) * 2008-09-01 2010-03-04 Magna Powertrain Ag & Co Kg Antriebssystem für ein Kraftfahrzeug

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137311A (en) * 1962-07-02 1964-06-16 Caterpillar Tractor Co Manually operated modulation valve
US3923076A (en) * 1973-04-27 1975-12-02 Caterpillar Tractor Co Transmission control system with dual purpose modulating valve
JPS5824805B2 (ja) * 1974-10-11 1983-05-24 株式会社小松製作所 セイギヨベン
US4036342A (en) * 1976-06-28 1977-07-19 Towmotor Corporation Inching valve with means preventing high pressure inching
US4150737A (en) * 1977-08-03 1979-04-24 Clark Equipment Company Inching valve
IT1084155B (it) * 1977-08-16 1985-05-25 Trensfluid S R L Dispositivo idraulico per l'azionamento modulato degli innesti a frizione
US4301713A (en) * 1978-12-07 1981-11-24 Caterpillar Tractor Co. Apparatus for supplying fluid to a plurality of mechanisms
US4474082A (en) * 1981-09-11 1984-10-02 Borg-Warner Corporation Control system for power shifted transmission
JPS5847629A (ja) * 1981-09-17 1983-03-19 Kamizaki Kokyu Koki Seisakusho Kk 移動作業車の変速装置
JPS5981231A (ja) * 1982-10-29 1984-05-10 Aisin Seiki Co Ltd インチング制御装置
US4643285A (en) * 1985-01-14 1987-02-17 J.I. Case Company Hydraulic control for a master clutch of a transmission
US4676348A (en) * 1986-03-06 1987-06-30 Caterpillar Inc. Fluid pressure control system having a timed pressure cutback device

Also Published As

Publication number Publication date
EP0364513B1 (de) 1992-07-29
KR900700781A (ko) 1990-08-17
JPH02503345A (ja) 1990-10-11
WO1989008208A1 (en) 1989-09-08
CA1295915C (en) 1992-02-18
KR960016792B1 (ko) 1996-12-21
US4865176A (en) 1989-09-12
EP0364513A1 (de) 1990-04-25

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Legal Events

Date Code Title Description
8332 No legal effect for de