JPH01116241U - - Google Patents
Info
- Publication number
- JPH01116241U JPH01116241U JP1112388U JP1112388U JPH01116241U JP H01116241 U JPH01116241 U JP H01116241U JP 1112388 U JP1112388 U JP 1112388U JP 1112388 U JP1112388 U JP 1112388U JP H01116241 U JPH01116241 U JP H01116241U
- Authority
- JP
- Japan
- Prior art keywords
- duty ratio
- oil pressure
- valve
- ratio signal
- control device
- 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
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Control Of Transmission Device (AREA)
Description
第１図は本考案の実施例の油圧回路を示す図、
第２図は自動変速機の骨組図、第３図はソレノイ
ドバルブによつて得られる油圧特性を示す図、第
４図は本考案の場合のデユーテイ比信号及び油圧
の変化特性を示す図、第５図は従来のデユーテイ
比信号及び油圧の変化特性を示す図である。
１０……１―２シフトバルブ、２６……２―３
シフトバルブ、４０……３―２タイミングバルブ
、５６……ソレノイドバルブ、５８……電子制御
装置。
FIG. 1 is a diagram showing a hydraulic circuit according to an embodiment of the present invention;
Figure 2 is a schematic diagram of the automatic transmission, Figure 3 is a diagram showing the hydraulic characteristics obtained by the solenoid valve, Figure 4 is a diagram showing the change characteristics of the duty ratio signal and oil pressure in the case of the present invention, and Figure 3 is a diagram showing the hydraulic characteristics obtained by the solenoid valve. FIG. 5 is a diagram showing the conventional duty ratio signal and oil pressure change characteristics. 10...1-2 shift valve, 26...2-3
Shift valve, 40...3-2 timing valve, 56...Solenoid valve, 58...Electronic control device.
Claims (1)
つて得られる信号圧を、所定のバルブのパイロツ
トポートに作用させて、このバルブのスプールの
位置を制御するように構成される自動変速機の制
御装置において、 ソレノイドバルブに与えるデユーテイ比信号を
切換える際、目標とする油圧よりも高い油圧に対
応するデユーテイ比信号を所定時間の間出力した
後、目標とする油圧に対応するデユーテイ比信号
を出力するソレノイド駆動装置を有することを特
徴とする自動変速機の制御装置。[Claims for Utility Model Registration] An automatic device configured to control the position of a spool of a predetermined valve by applying a signal pressure obtained by a solenoid valve whose duty ratio is controlled to a pilot port of a predetermined valve. In a transmission control device, when switching the duty ratio signal given to the solenoid valve, the duty ratio signal corresponding to the oil pressure higher than the target oil pressure is output for a predetermined period of time, and then the duty ratio signal corresponding to the target oil pressure is changed. A control device for an automatic transmission, comprising a solenoid drive device that outputs a signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1112388U JPH0538285Y2 (en) | 1988-02-01 | 1988-02-01 | |
| US07/730,391 US5154100A (en) | 1988-02-01 | 1991-07-15 | System for controlling automatic power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1112388U JPH0538285Y2 (en) | 1988-02-01 | 1988-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01116241U true JPH01116241U (en) | 1989-08-04 |
| JPH0538285Y2 JPH0538285Y2 (en) | 1993-09-28 |
Family
ID=31219393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1112388U Expired - Lifetime JPH0538285Y2 (en) | 1988-02-01 | 1988-02-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0538285Y2 (en) |
-
1988
- 1988-02-01 JP JP1112388U patent/JPH0538285Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0538285Y2 (en) | 1993-09-28 |
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