JPS5643032A - Four wheel drive with automatic transmission - Google Patents

Four wheel drive with automatic transmission

Info

Publication number
JPS5643032A
JPS5643032A JP11772679A JP11772679A JPS5643032A JP S5643032 A JPS5643032 A JP S5643032A JP 11772679 A JP11772679 A JP 11772679A JP 11772679 A JP11772679 A JP 11772679A JP S5643032 A JPS5643032 A JP S5643032A
Authority
JP
Japan
Prior art keywords
wheel drive
automatic transmission
transfer clutch
advance
drive
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
JP11772679A
Other languages
Japanese (ja)
Other versions
JPS6312815B2 (en
Inventor
Toshio Takano
Toshio Kobayashi
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.)
Subaru Corp
Original Assignee
Fuji Heavy Industries 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 Fuji Heavy Industries Ltd filed Critical Fuji Heavy Industries Ltd
Priority to JP11772679A priority Critical patent/JPS5643032A/en
Priority to US06/171,769 priority patent/US4481877A/en
Priority to GB8026570A priority patent/GB2058994B/en
Priority to AU61474/80A priority patent/AU523975B2/en
Priority to CH6221/80A priority patent/CH650204A5/en
Priority to CA000358645A priority patent/CA1141995A/en
Priority to FR8018652A priority patent/FR2465135B1/en
Priority to DE3034228A priority patent/DE3034228C2/en
Priority to SE8006380A priority patent/SE445319B/en
Publication of JPS5643032A publication Critical patent/JPS5643032A/en
Publication of JPS6312815B2 publication Critical patent/JPS6312815B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To permit automatic change-over from front wheel drive to four wheel drive travelling and vice versa while permitting automatic four wheel drive only in low speed high load advance by use of a hydraulic transfer clutch operated by line pressure in an automatic transmission.
CONSTITUTION: Drive force from an engine is transmitted through an automatic transmission 3 to a front wheel final reduction gear 4 to drive normally front wheels while transmitted through a hydraulic system transfer clutch 35 to a rear drive shaft 31. The transfer clutch 35 is energized by line pressure generated in the automatic transmission at advance travelling to be automatically connected to the rear drive shaft 31 in high load advance necessary for four wheel drive. Since the transfer clutch 35 used is of hydraulic clutch, change-over to the four wheel drive can be carried out irrespective of travelling conditions and automatically in low speed high load running wherein the front wheels in advance are liable to lose relatively grip ability, so that performances of starting acceleration and running can be improved.
COPYRIGHT: (C)1981,JPO&Japio
JP11772679A 1979-09-13 1979-09-13 Four wheel drive with automatic transmission Granted JPS5643032A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP11772679A JPS5643032A (en) 1979-09-13 1979-09-13 Four wheel drive with automatic transmission
US06/171,769 US4481877A (en) 1979-09-13 1980-07-24 Automatic transmission for four wheel drive automotive vehicles
GB8026570A GB2058994B (en) 1979-09-13 1980-08-14 Transmission for four-wheel drive vehicle
AU61474/80A AU523975B2 (en) 1979-09-13 1980-08-15 Automatic transmission for four wheel drive
CH6221/80A CH650204A5 (en) 1979-09-13 1980-08-18 Automatic transmission for a motor vehicle with wheel drive.
CA000358645A CA1141995A (en) 1979-09-13 1980-08-20 Automatic transmission for four wheel drive automotive vehicles
FR8018652A FR2465135B1 (en) 1979-09-13 1980-08-28 AUTOMATIC TRANSMISSION DEVICE FOR A FOUR-DRIVE VEHICLE
DE3034228A DE3034228C2 (en) 1979-09-13 1980-09-11 Automatic transmission for a four-wheel drive motor vehicle
SE8006380A SE445319B (en) 1979-09-13 1980-09-12 AUTOMATIC TRANSMISSION FOR A MOTOR VEHICLE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11772679A JPS5643032A (en) 1979-09-13 1979-09-13 Four wheel drive with automatic transmission

Publications (2)

Publication Number Publication Date
JPS5643032A true JPS5643032A (en) 1981-04-21
JPS6312815B2 JPS6312815B2 (en) 1988-03-22

Family

ID=14718758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11772679A Granted JPS5643032A (en) 1979-09-13 1979-09-13 Four wheel drive with automatic transmission

Country Status (1)

Country Link
JP (1) JPS5643032A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59190133U (en) * 1983-06-03 1984-12-17 三洋電機株式会社 water heater
JPS62149513A (en) * 1985-09-03 1987-07-03 Toyota Motor Corp Controlling method of power transmission device for vehicle
US5024622A (en) * 1988-06-09 1991-06-18 Terumo Kabushiki Kaisha Detachable probe-type electronic clinical thermometer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104828U (en) * 1972-12-30 1974-09-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104828U (en) * 1972-12-30 1974-09-09

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59190133U (en) * 1983-06-03 1984-12-17 三洋電機株式会社 water heater
JPS6329463Y2 (en) * 1983-06-03 1988-08-08
JPS62149513A (en) * 1985-09-03 1987-07-03 Toyota Motor Corp Controlling method of power transmission device for vehicle
US5024622A (en) * 1988-06-09 1991-06-18 Terumo Kabushiki Kaisha Detachable probe-type electronic clinical thermometer

Also Published As

Publication number Publication date
JPS6312815B2 (en) 1988-03-22

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