FR2343170A1 - Hydraulic control of automobile gear box - has valves actuated by pressures proportional to engine torque and speed - Google Patents

Hydraulic control of automobile gear box - has valves actuated by pressures proportional to engine torque and speed

Info

Publication number
FR2343170A1
FR2343170A1 FR7606265A FR7606265A FR2343170A1 FR 2343170 A1 FR2343170 A1 FR 2343170A1 FR 7606265 A FR7606265 A FR 7606265A FR 7606265 A FR7606265 A FR 7606265A FR 2343170 A1 FR2343170 A1 FR 2343170A1
Authority
FR
France
Prior art keywords
engine torque
speed
gear box
proportional
hydraulic 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.)
Granted
Application number
FR7606265A
Other languages
French (fr)
Other versions
FR2343170B1 (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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Priority to FR7606265A priority Critical patent/FR2343170A1/en
Publication of FR2343170A1 publication Critical patent/FR2343170A1/en
Application granted granted Critical
Publication of FR2343170B1 publication Critical patent/FR2343170B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline 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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/10—Change speed gearings
    • B60W2710/1005—Transmission ratio engaged

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The hydraulic control of an automobile gear box utilises a pump which supplies oil to a slide valve. In addition, a pressure regulator controls the pressure to a value P which is proportional to the engine torque and a value P2 proportional to engine speed. Three receptors control the three forward speeds. Two receptors are supplied continuously with oil at pressure P2. The position of the slide valve determines which receptor is supplied with a pressure P3 which is also proportional to engine torque. Thus the speed selected is a function of engine torque.
FR7606265A 1976-03-05 1976-03-05 Hydraulic control of automobile gear box - has valves actuated by pressures proportional to engine torque and speed Granted FR2343170A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7606265A FR2343170A1 (en) 1976-03-05 1976-03-05 Hydraulic control of automobile gear box - has valves actuated by pressures proportional to engine torque and speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7606265A FR2343170A1 (en) 1976-03-05 1976-03-05 Hydraulic control of automobile gear box - has valves actuated by pressures proportional to engine torque and speed

Publications (2)

Publication Number Publication Date
FR2343170A1 true FR2343170A1 (en) 1977-09-30
FR2343170B1 FR2343170B1 (en) 1979-05-25

Family

ID=9169993

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7606265A Granted FR2343170A1 (en) 1976-03-05 1976-03-05 Hydraulic control of automobile gear box - has valves actuated by pressures proportional to engine torque and speed

Country Status (1)

Country Link
FR (1) FR2343170A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432255A (en) * 1980-10-27 1984-02-21 General Motors Corporation Hydraulic control for a power transmission
DE19612864A1 (en) * 1996-03-30 1997-10-02 Zahnradfabrik Friedrichshafen Hydraulic control device for shifting an automatic transmission, in particular a CVT transmission

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432255A (en) * 1980-10-27 1984-02-21 General Motors Corporation Hydraulic control for a power transmission
DE19612864A1 (en) * 1996-03-30 1997-10-02 Zahnradfabrik Friedrichshafen Hydraulic control device for shifting an automatic transmission, in particular a CVT transmission
US6030317A (en) * 1996-03-30 2000-02-29 Zf Friedrichshafen Ag Hydraulic control for operating an automatic gearbox, especially a continuosly variable transmission

Also Published As

Publication number Publication date
FR2343170B1 (en) 1979-05-25

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Legal Events

Date Code Title Description
ST Notification of lapse