GB1492568A - Safety apparatus in automatic transmission apparatus for vehicle - Google Patents

Safety apparatus in automatic transmission apparatus for vehicle

Info

Publication number
GB1492568A
GB1492568A GB5272474A GB5272474A GB1492568A GB 1492568 A GB1492568 A GB 1492568A GB 5272474 A GB5272474 A GB 5272474A GB 5272474 A GB5272474 A GB 5272474A GB 1492568 A GB1492568 A GB 1492568A
Authority
GB
United Kingdom
Prior art keywords
clutch
passage
pressure
valve
low
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
GB5272474A
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to GB5272474A priority Critical patent/GB1492568A/en
Publication of GB1492568A publication Critical patent/GB1492568A/en
Expired 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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
    • F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
    • F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
    • F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
    • F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
    • 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
    • F16D43/00—Automatic clutches
    • F16D43/28—Automatic clutches actuated by fluid pressure
    • F16D43/284—Automatic clutches actuated by fluid pressure controlled by angular 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Transmission Device (AREA)

Abstract

1492568 Change-speed control; friction clutches HONDA GIKEN KOGYO KK 5 Dec 1974 52724/74 Headings F2C and F2D In an automatic transmission on a motor vehicle, having high and low ratio friction clutches (1), 17, engaged by fluid pressure under control of a solenoid shift valve (3) responsive to vehicle speed and engine power, engagement of the low ratio clutch 17, as by wrong movement of the shift valve to low setting, at speeds which would result in excessive engine speed and engine braking, is prevented by a centrifugal valve 6 in the input member 13 of the clutch, which, above a predetermined speed, moves radially outwards to a position in which it cuts off the pressure supply 26 from the clutch chamber 5 and communicates that chamber, through a passage 26, 27 with the pressure chamber (28) of the high ratio clutch (1), thereby maintaining engagement of the latter and disengaging the low ratio clutch 17. The communicating passage 27 includes a spring-closed valve (29, Fig. 1, not shown) opened by pressure in the passage 27. The fluid circuit, Fig. 1 (not shown), includes also a manual valve (9) having high and low drive settings, and a warning lamp (36) switched on by pressure in the passage 27.
GB5272474A 1974-12-05 1974-12-05 Safety apparatus in automatic transmission apparatus for vehicle Expired GB1492568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5272474A GB1492568A (en) 1974-12-05 1974-12-05 Safety apparatus in automatic transmission apparatus for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5272474A GB1492568A (en) 1974-12-05 1974-12-05 Safety apparatus in automatic transmission apparatus for vehicle

Publications (1)

Publication Number Publication Date
GB1492568A true GB1492568A (en) 1977-11-23

Family

ID=10465044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5272474A Expired GB1492568A (en) 1974-12-05 1974-12-05 Safety apparatus in automatic transmission apparatus for vehicle

Country Status (1)

Country Link
GB (1) GB1492568A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468790A1 (en) * 1979-11-03 1981-05-08 Leboime Pierre Control circuit for variable speed output - compares actual shaft speed with pre-set value to operate pressure regulator for clutch piston
WO1984003337A1 (en) * 1983-02-22 1984-08-30 Zahnradfabrik Friedrichshafen Control device for a clutch
US4688665A (en) * 1986-05-01 1987-08-25 Caterpillar Inc. Apparatus for preventing engine stall

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468790A1 (en) * 1979-11-03 1981-05-08 Leboime Pierre Control circuit for variable speed output - compares actual shaft speed with pre-set value to operate pressure regulator for clutch piston
WO1984003337A1 (en) * 1983-02-22 1984-08-30 Zahnradfabrik Friedrichshafen Control device for a clutch
US4688665A (en) * 1986-05-01 1987-08-25 Caterpillar Inc. Apparatus for preventing engine stall
WO1987006663A1 (en) * 1986-05-01 1987-11-05 Caterpillar Inc. Apparatus for preventing engine stall

Similar Documents

Publication Publication Date Title
US3918312A (en) Hydraulically operated transmission system for automotive vehicles
GB1386568A (en) Line pressure modulating device for an automatic power transmission
GB1447324A (en) Transmission assemblies
GB1461429A (en) Fluid operated clutch
JPS5631549A (en) Speed change controller for automatic transmission
GB1306249A (en)
GB1536746A (en) Transmission control arrangement for motor vehicles
GB1302081A (en)
GB1492568A (en) Safety apparatus in automatic transmission apparatus for vehicle
GB1445377A (en) Hydraulic control circuit for vehicle automatic transmission
GB1336705A (en) Lock-up clutch controls
GB1006693A (en) Improvements in or relating to hydraulically operated friction clutches and controlcircuits therefor
EP0153050B1 (en) System for controlling an electromagnetic clutch
GB1505780A (en) Transmission overspeed inhibitor
US3613480A (en) Power transmission having downshift inhibitor
GB1530959A (en) Marine jet drives
GB1537408A (en) Control system for an automatic power transmission
GB681126A (en) Improved device for automatic variable-speed power transmission
GB1196130A (en) Improvements in Drive Transmission Devices
JPS57161359A (en) Control device for stepless speed changer with v-belt
GB1287006A (en) Overdrive transmission
GB1350308A (en) Timing valve for an automatic power transmission
US3685370A (en) Transmission control having a shift overlap valve
GB677185A (en) Improvements in or relating to variable-speed transmissions
GB1374089A (en) Power transmission

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee