JPS6432937A - Speed change control method for continuously variable transmission - Google Patents
Speed change control method for continuously variable transmissionInfo
- Publication number
- JPS6432937A JPS6432937A JP62189258A JP18925887A JPS6432937A JP S6432937 A JPS6432937 A JP S6432937A JP 62189258 A JP62189258 A JP 62189258A JP 18925887 A JP18925887 A JP 18925887A JP S6432937 A JPS6432937 A JP S6432937A
- Authority
- JP
- Japan
- Prior art keywords
- rotational speed
- idle
- engine
- controlled
- continuously variable
- 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.)
- Pending
Links
Landscapes
- Control Of Transmission Device (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
PURPOSE:To prevent an engine from abrupt reduction of rotational speed in start by setting a desired rotational speed of engine in the proximity of full closing of a throttle in idle-up higher than that in non-idle-up. CONSTITUTION:A V-belt type continuously variable transmission 10 supplies oil pressure discharged from an oil pump 42, regulated by a relief valve 40 and controlled by a pulley-controlling valve 43 and start-controlling valve 45 to an oil chamber 18 of the driven side pulley 14 and a start clutch 20 respectively. Thus, change gear ratio and torque voltage capacity of a start clutch 20 are controlled. The pulley controlling valve 43 is controlled on the basis of a desired rotational speed of engine determined according to the throttle opening. Then, a desired rotational speed of engine in the proximity of full closing of throttle in idle-up is set higher than that in non-idle-up. Thus, the rotational speed in the low throttle opening is prevented from abrupt reduction in starting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189258A JPS6432937A (en) | 1987-07-29 | 1987-07-29 | Speed change control method for continuously variable transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189258A JPS6432937A (en) | 1987-07-29 | 1987-07-29 | Speed change control method for continuously variable transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432937A true JPS6432937A (en) | 1989-02-02 |
Family
ID=16238287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62189258A Pending JPS6432937A (en) | 1987-07-29 | 1987-07-29 | Speed change control method for continuously variable transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432937A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7004296B2 (en) * | 2002-11-27 | 2006-02-28 | Zf Sachs Ag | Torque transmission system for a vehicle |
-
1987
- 1987-07-29 JP JP62189258A patent/JPS6432937A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7004296B2 (en) * | 2002-11-27 | 2006-02-28 | Zf Sachs Ag | Torque transmission system for a vehicle |
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