GB995498A - Improvements in or relating to friction clutch control devices for motor vehicles - Google Patents

Improvements in or relating to friction clutch control devices for motor vehicles

Info

Publication number
GB995498A
GB995498A GB12263/62A GB1226362A GB995498A GB 995498 A GB995498 A GB 995498A GB 12263/62 A GB12263/62 A GB 12263/62A GB 1226362 A GB1226362 A GB 1226362A GB 995498 A GB995498 A GB 995498A
Authority
GB
United Kingdom
Prior art keywords
valve
clutch
servo
engine speed
servomotor
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
GB12263/62A
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.)
Industrie Magneti Marelli SRL
Marelli Europe SpA
Original Assignee
Fabbrica Italiana Magneti Marelli SpA
Magneti Marelli SpA
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 Fabbrica Italiana Magneti Marelli SpA, Magneti Marelli SpA filed Critical Fabbrica Italiana Magneti Marelli SpA
Publication of GB995498A publication Critical patent/GB995498A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

995,498. Clutch control. FABBRIKA ITALIANA MAGNETI MARELLI S.p.A. March 30, 1962 [April 1, 1961], No. 12263/62. Heading F2L. An electro-pneumatic clutch control for a motor vehicle comprises an electrically operated valve A which on closure of a gear shaft lever switch 27 supplies pressure air from a source 9 through a check valve 11 to a clutch disengaging servomotor 6 and to a servomotor 13 which reduces throttle opening, and further electrically operated valves B, C which when the clutch is disengaged connect the pressure air source 9 to the servomotor 6 through an engine speed responsive valve D so that on establishment of a gear ratio and consequential de-energization the valve A which vents the servo 13, the servo 6 is maintained energized through the valve D until the engine speed attains a predetermined value whereupon the valve D vents at 24<SP>1</SP> the servo 6 for clutch engagement. The valve D has inlet and outlet chambers 20, 22 respectively connected through lines 8, 18, 19 and valve B to the pressure source 9 and through lines 21, 23, 10 and valve C to the clutch servo 6. When the engine speed is below the predetermined speed there is, as shown, free communication between the chambers 20, 22 and the exhaust port 24<SP>1</SP> is blocked. When the engine speed attains the predetermined speed a governor 7 moves the valve spool 24 left to cut communication between the chambers 20, 22 and open the exhaust port 24<SP>1</SP>. Initial clutch engagement tends to reduce the engine speed and thus close the exhaust port 24<SP>1</SP> whereupon the rate of clutch engagement is also reduced. A valve E energized on closure of a switch 29 during overrun of the clutch output member supplies pressure air to a servo-motor 30 which increases throttle opening thus facilitating downshift. The valves B, C are energized on closure of a switch 28 effected when the clutch is completely disengaged. The usual ignition and manual override switches 25, 26 are provided.
GB12263/62A 1961-04-01 1962-03-30 Improvements in or relating to friction clutch control devices for motor vehicles Expired GB995498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT610961 1961-04-01

Publications (1)

Publication Number Publication Date
GB995498A true GB995498A (en) 1965-06-16

Family

ID=11120900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12263/62A Expired GB995498A (en) 1961-04-01 1962-03-30 Improvements in or relating to friction clutch control devices for motor vehicles

Country Status (2)

Country Link
CH (1) CH378176A (en)
GB (1) GB995498A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487463A1 (en) * 1980-07-25 1982-01-29 Sachs Systemtechnik Gmbh DEVICE FOR AUTOMATICALLY ACTUATING A FRICTION CLUTCH DEVICE OF MOTOR VEHICLES

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637636C2 (en) * 1976-08-20 1986-02-27 Central'nyj nau&ccaron;no-issledovatel'skij avtomobil'nyj i avtomotornyj institut (NAMI), Moskau/Moskva Servo motor for the clutch
DE2637635C2 (en) * 1976-08-20 1987-02-12 Central'nyj nau&ccaron;no-issledovatel'skij avtomobil'nyj i avtomotornyj institut (NAMI), Moskva Device for controlling a friction clutch of a motor vehicle
DE2737550C2 (en) * 1977-08-19 1983-10-13 Central'nyj nau&ccaron;no-issledovatel'skij avtomobil'nyj i avtomotornyj institut (NAMI), Moskva Control device for the joint control of a separating clutch and a lock-up clutch of a hydrodynamic torque converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487463A1 (en) * 1980-07-25 1982-01-29 Sachs Systemtechnik Gmbh DEVICE FOR AUTOMATICALLY ACTUATING A FRICTION CLUTCH DEVICE OF MOTOR VEHICLES

Also Published As

Publication number Publication date
CH378176A (en) 1964-05-31

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