JPS5643032A - Four wheel drive with automatic transmission - Google Patents
Four wheel drive with automatic transmissionInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49104828U (en) * | 1972-12-30 | 1974-09-09 |
-
1979
- 1979-09-13 JP JP11772679A patent/JPS5643032A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49104828U (en) * | 1972-12-30 | 1974-09-09 |
Cited By (4)
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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