JPS5758519A - Automatic transmission controlling apparatus for car with engine equipped with fuel cutting device - Google Patents
Automatic transmission controlling apparatus for car with engine equipped with fuel cutting deviceInfo
- Publication number
- JPS5758519A JPS5758519A JP55133005A JP13300580A JPS5758519A JP S5758519 A JPS5758519 A JP S5758519A JP 55133005 A JP55133005 A JP 55133005A JP 13300580 A JP13300580 A JP 13300580A JP S5758519 A JPS5758519 A JP S5758519A
- Authority
- JP
- Japan
- Prior art keywords
- automatic transmission
- car
- speed
- switch
- shift
- 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
Landscapes
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Transmission Device (AREA)
Abstract
PURPOSE: To improve the fuel consumption of a car with the specification of an automatic transmission by permitting compulsory down-shift only when the conditions to permit compulsory down-shift for an automatic transmission are ready at a prescribed speed or more.
CONSTITUTION: An idle switch 72 and a brake switch 73 are installed in the lock- up control circuit for an automatic transmission. The switch 72 is closed during release of an accelerating pedal, and the switch 73 is closed when a brake pedal is stepped-in. If the brake pedal is stepped-in during coasting run when the accelerating pedal is released with the automatic transmission in the third speed the idle signal S1 at L level and the brake signal SB are input into an NOR gate 230, and the output signal of a car speed comparison circuit 222 in the case when the car speed is larger than the speed of the car to which fuel should be supplied again and the third speed signal S3 are respectively reversed, and input at L level into a gate 230. The gate 230 energizes a solenoid 137a through a flip-flop circuit 239 and a transistor 240 to operate down-shift.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55133005A JPS5932333B2 (en) | 1980-09-26 | 1980-09-26 | Automatic transmission control device for vehicles equipped with engines equipped with fuel cut devices |
DE8181106209T DE3176554D1 (en) | 1980-08-11 | 1981-08-07 | Control system for automatic transmission for automotive vehicle |
EP81106209A EP0045962B1 (en) | 1980-08-11 | 1981-08-07 | Control system for automatic transmission for automotive vehicle |
US06/291,846 US4473882A (en) | 1980-08-11 | 1981-08-10 | Control method of and system for automatic transmission for automotive vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55133005A JPS5932333B2 (en) | 1980-09-26 | 1980-09-26 | Automatic transmission control device for vehicles equipped with engines equipped with fuel cut devices |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5758519A true JPS5758519A (en) | 1982-04-08 |
JPS5932333B2 JPS5932333B2 (en) | 1984-08-08 |
Family
ID=15094554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55133005A Expired JPS5932333B2 (en) | 1980-08-11 | 1980-09-26 | Automatic transmission control device for vehicles equipped with engines equipped with fuel cut devices |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5932333B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4643048A (en) * | 1983-06-30 | 1987-02-17 | Isuzu Motors Limited | Method of controlling automatic transmission in accordance with determination of optimum gear ratio |
JPS6277244A (en) * | 1985-09-30 | 1987-04-09 | Aisin Seiki Co Ltd | Control method for vehicular automatic transmission with exhaust brake |
-
1980
- 1980-09-26 JP JP55133005A patent/JPS5932333B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4643048A (en) * | 1983-06-30 | 1987-02-17 | Isuzu Motors Limited | Method of controlling automatic transmission in accordance with determination of optimum gear ratio |
JPS6277244A (en) * | 1985-09-30 | 1987-04-09 | Aisin Seiki Co Ltd | Control method for vehicular automatic transmission with exhaust brake |
Also Published As
Publication number | Publication date |
---|---|
JPS5932333B2 (en) | 1984-08-08 |
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