JPS5683646A - Controlling device for kickdown of automatic speed change gear - Google Patents
Controlling device for kickdown of automatic speed change gearInfo
- Publication number
- JPS5683646A JPS5683646A JP15974979A JP15974979A JPS5683646A JP S5683646 A JPS5683646 A JP S5683646A JP 15974979 A JP15974979 A JP 15974979A JP 15974979 A JP15974979 A JP 15974979A JP S5683646 A JPS5683646 A JP S5683646A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- kickdown
- throttle opening
- feeds
- level signal
- 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 Transmission Device (AREA)
Abstract
PURPOSE: To prevent the comfortableness of ride from being impaired due to unnecessarily repeated speed changes by a method wherein a hysteresis is provided for an up-shift line after a down-shift when the positive change rate of the throttle opening at the time of a kickdown is low.
CONSTITUTION: When the change rate of the throttle opening at the time of transfer into a kickdown range is low, this condition is detected by a comparing circuit 12 which then feeds a high-level signal into an AND circuit 15. On the other hand, a comparing circuit 10 detects the kickdown condition where the throttle opening becomes not less than θ1 and feeds a high-level signal to the AND circuit 15, which feeds a high-level signal to a set input terminal S of a modifying circuit 13. Accordingly, the circuit 13 feeds a high-level signal to the circuit 10, which modifies the comparison level from the value corresponding to the throttle opening of θ1 to the value corresponding to a throttle opening of θ2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15974979A JPS5683646A (en) | 1979-12-11 | 1979-12-11 | Controlling device for kickdown of automatic speed change gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15974979A JPS5683646A (en) | 1979-12-11 | 1979-12-11 | Controlling device for kickdown of automatic speed change gear |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5683646A true JPS5683646A (en) | 1981-07-08 |
JPS6235544B2 JPS6235544B2 (en) | 1987-08-03 |
Family
ID=15700418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15974979A Granted JPS5683646A (en) | 1979-12-11 | 1979-12-11 | Controlling device for kickdown of automatic speed change gear |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5683646A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4680990A (en) * | 1984-04-19 | 1987-07-21 | Fuji Jukogyo Kabushiki Kaisha | System for controlling the transmission ratio of an infinitely variable transmission |
JPS6372955A (en) * | 1986-09-12 | 1988-04-02 | Diesel Kiki Co Ltd | Automatic transmission |
US4833947A (en) * | 1987-08-21 | 1989-05-30 | Toyota Jidosha Kabushiki Kaisha | Diagnostic system for a kickdown switch in an automotive vehicle |
JPH01140054U (en) * | 1988-03-22 | 1989-09-25 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5085764A (en) * | 1973-12-07 | 1975-07-10 | ||
JPS5131366A (en) * | 1974-07-05 | 1976-03-17 | Anvar | Gendokito sonofukano aidano dentatsuno tokuchoosentakusurusochi |
JPS5144763A (en) * | 1974-10-16 | 1976-04-16 | Hitachi Ltd | JIDOSHANODENSHISHIKI JIDOHENSOKUKINO SEIGYO SOCHI |
-
1979
- 1979-12-11 JP JP15974979A patent/JPS5683646A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5085764A (en) * | 1973-12-07 | 1975-07-10 | ||
JPS5131366A (en) * | 1974-07-05 | 1976-03-17 | Anvar | Gendokito sonofukano aidano dentatsuno tokuchoosentakusurusochi |
JPS5144763A (en) * | 1974-10-16 | 1976-04-16 | Hitachi Ltd | JIDOSHANODENSHISHIKI JIDOHENSOKUKINO SEIGYO SOCHI |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4680990A (en) * | 1984-04-19 | 1987-07-21 | Fuji Jukogyo Kabushiki Kaisha | System for controlling the transmission ratio of an infinitely variable transmission |
JPS6372955A (en) * | 1986-09-12 | 1988-04-02 | Diesel Kiki Co Ltd | Automatic transmission |
JPH0375787B2 (en) * | 1986-09-12 | 1991-12-03 | Zexel Corp | |
US4833947A (en) * | 1987-08-21 | 1989-05-30 | Toyota Jidosha Kabushiki Kaisha | Diagnostic system for a kickdown switch in an automotive vehicle |
JPH01140054U (en) * | 1988-03-22 | 1989-09-25 |
Also Published As
Publication number | Publication date |
---|---|
JPS6235544B2 (en) | 1987-08-03 |
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