JPS6435154A - Hydraulic control device for automatic transmission - Google Patents
Hydraulic control device for automatic transmissionInfo
- Publication number
- JPS6435154A JPS6435154A JP62191391A JP19139187A JPS6435154A JP S6435154 A JPS6435154 A JP S6435154A JP 62191391 A JP62191391 A JP 62191391A JP 19139187 A JP19139187 A JP 19139187A JP S6435154 A JPS6435154 A JP S6435154A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- engagement element
- friction engagement
- working oil
- hydraulic control
- 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)
Abstract
PURPOSE:To suppress lag of actuation of a friction engagement element by changing the control characteristic in supply control of the working oil pressure for the friction engagement element in accordance with the sensed temp. of working oil, or a temp. associate therewith. CONSTITUTION:In a hydraulic control device for an automatic transmission, a control characteristic changing means changes the control characteristic of a hydraulic control means in supply control of the working oil pressure for a friction engagement element such as clutch, brake, etc., in a speed change mechanism in accordance with the temp. of working oil sensed by an oil temp. sensing means, or a temp. associate therewith. Thereby the working oil pressure supplied to the friction engagement element is changed with a control characteristic according to the temp. of working oil, i.e. viscosity, which will eliminate lag in actuation of the friction engagement element at, for ex., a low temp. to lead to obtainment of proper engaging timing etc. Thus occurrence of large speed change shock can be prevented, and durability of the friction engagement element be enhanced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191391A JPS6435154A (en) | 1987-07-30 | 1987-07-30 | Hydraulic control device for automatic transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191391A JPS6435154A (en) | 1987-07-30 | 1987-07-30 | Hydraulic control device for automatic transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6435154A true JPS6435154A (en) | 1989-02-06 |
Family
ID=16273822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62191391A Pending JPS6435154A (en) | 1987-07-30 | 1987-07-30 | Hydraulic control device for automatic transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6435154A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0520532A2 (en) * | 1991-06-27 | 1992-12-30 | Saturn Corporation | Open-loop control method for an automatic transmission |
US6915681B2 (en) | 2002-03-28 | 2005-07-12 | Toyota Jidosha Kabushiki Kaisha | Gear-shift control device and gear-shift control method for automatic transmission |
CN100432500C (en) * | 2004-10-12 | 2008-11-12 | 本田技研工业株式会社 | Control device for hydraulic automatic transmission for vehicle |
-
1987
- 1987-07-30 JP JP62191391A patent/JPS6435154A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0520532A2 (en) * | 1991-06-27 | 1992-12-30 | Saturn Corporation | Open-loop control method for an automatic transmission |
US6915681B2 (en) | 2002-03-28 | 2005-07-12 | Toyota Jidosha Kabushiki Kaisha | Gear-shift control device and gear-shift control method for automatic transmission |
DE10313579B4 (en) * | 2002-03-28 | 2015-07-02 | Toyota Jidosha Kabushiki Kaisha | Shift control method and shift control device for an automatic transmission |
CN100432500C (en) * | 2004-10-12 | 2008-11-12 | 本田技研工业株式会社 | Control device for hydraulic automatic transmission for vehicle |
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