JPS5576709A - Automatic control device for automotive stepless transmission - Google Patents
Automatic control device for automotive stepless transmissionInfo
- Publication number
- JPS5576709A JPS5576709A JP14768478A JP14768478A JPS5576709A JP S5576709 A JPS5576709 A JP S5576709A JP 14768478 A JP14768478 A JP 14768478A JP 14768478 A JP14768478 A JP 14768478A JP S5576709 A JPS5576709 A JP S5576709A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- transistor
- throttle valve
- transmission
- automotive
- 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 Fluid Gearings (AREA)
Abstract
PURPOSE: To steplessly exactly control an automotive transmission by providing a variable amplification degree amplifier circuit for producing an output voltage determined by an engine speed and a throttle valve opening, a gear shifting motor drive circuit, a feedback circuit and a differential circuit, etc. in the transmission.
CONSTITUTION: The resistor 32 of a variable amplification degree amplifier circuit E2 increases its resistance in response to the increase in the opening of a throttle valve V. When a voltage e1 responsive to the throttle valve opening and vehicle speed is therefore generated from the circuit E2, it is applied to the base of first transistor 36 in a differential circuit E3 and simultaneously charged in a capacitor 43. On the other hand, a voltage e2 generated in a feedback circuit E5 is increased upon turning of a motor operated lever at its top position and applied to the base of second transistor 37. Accordingly, when e1>e2, the transistor 40 is conducted to cause the motor to be rotated normally to thereby shift the gear shifting member to the top position so as to thus reduce the rransmission ratio of the transmission. When e1<e2, this configuration is operated inversely to the above operation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14768478A JPS5576709A (en) | 1978-11-29 | 1978-11-29 | Automatic control device for automotive stepless transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14768478A JPS5576709A (en) | 1978-11-29 | 1978-11-29 | Automatic control device for automotive stepless transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5576709A true JPS5576709A (en) | 1980-06-10 |
JPS5743782B2 JPS5743782B2 (en) | 1982-09-17 |
Family
ID=15435937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14768478A Granted JPS5576709A (en) | 1978-11-29 | 1978-11-29 | Automatic control device for automotive stepless transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5576709A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3439881A1 (en) * | 1983-10-31 | 1985-05-23 | Mazda Motor Corp., Hiroshima | CONTINUOUSLY VARIABLE VEHICLE TRANSMISSION WITH CONTROL OF THE TRANSLATION RATIO |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61149061A (en) * | 1984-12-24 | 1986-07-07 | Toshiyuki Kokito | Method for drying noodle and apparatus therefor |
-
1978
- 1978-11-29 JP JP14768478A patent/JPS5576709A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3439881A1 (en) * | 1983-10-31 | 1985-05-23 | Mazda Motor Corp., Hiroshima | CONTINUOUSLY VARIABLE VEHICLE TRANSMISSION WITH CONTROL OF THE TRANSLATION RATIO |
US4671138A (en) * | 1983-10-31 | 1987-06-09 | Mazda Motor Corporation | Speed ratio control of a steplessly variable vehicle transmission |
DE3439881C2 (en) * | 1983-10-31 | 1998-03-12 | Mazda Motor | Transmission control device for continuously variable motor vehicle transmissions |
Also Published As
Publication number | Publication date |
---|---|
JPS5743782B2 (en) | 1982-09-17 |
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