JPH02125259U - - Google Patents
Info
- Publication number
- JPH02125259U JPH02125259U JP3527989U JP3527989U JPH02125259U JP H02125259 U JPH02125259 U JP H02125259U JP 3527989 U JP3527989 U JP 3527989U JP 3527989 U JP3527989 U JP 3527989U JP H02125259 U JPH02125259 U JP H02125259U
- Authority
- JP
- Japan
- Prior art keywords
- shift
- pattern
- cutback
- automatic transmission
- solenoid
- 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 8
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
Landscapes
- Control Of Transmission Device (AREA)
Description
第１図は本考案の構成を明示するための概略構
成図、第２図は一実施例における自動変速機の内
部機構を示す概略図、第３図は自動変速機の油圧
制御回路を示す回路図、第４図はカツトバツクバ
ルブの概略図、第５図は制御系の概略図、第６図
はコントローラの処理を説明するための要部フロ
ーチヤート図である。
Ａ……自動変速機、Ｂ……変速歯車機構、Ｃ…
…摩擦要素、Ｄ……シフトバルブ、Ｅ……シフト
ソレノイド、Ｇ……変速制御手段、Ｈ……変速判
定手段、Ｊ……速度検出手段、Ｋ……パターン変
更手段、Ｌ……パターン設定手段、Ｍ……カツト
バツク手段、１０……自動変速機、３０……歯車
変速機構、４１〜４４……クラツチ、４５，４６
……ブレーキ、５０……コトンローラ、５６……
タービンセンサ、５８……インヒビタスイツチ、
６０……油圧制御回路、６３〜６５……シフトバ
ルブ、６６〜６８……シフトソレノイド、９７…
…カツトバツクバルブ。
Fig. 1 is a schematic diagram showing the structure of the present invention, Fig. 2 is a schematic diagram showing the internal mechanism of an automatic transmission in one embodiment, and Fig. 3 is a circuit showing a hydraulic control circuit of the automatic transmission. 4 is a schematic diagram of the cutback valve, FIG. 5 is a schematic diagram of the control system, and FIG. 6 is a flowchart of main parts for explaining the processing of the controller. A... Automatic transmission, B... Speed change gear mechanism, C...
...Friction element, D...Shift valve, E...Shift solenoid, G...Shift control means, H...Shift determination means, J...Speed detection means, K...Pattern changing means, L...Pattern setting means , M... cutback means, 10... automatic transmission, 30... gear transmission mechanism, 41-44... clutch, 45, 46
...Brake, 50...Cotonrolla, 56...
Turbine sensor, 58...inhibitor switch,
60...Hydraulic control circuit, 63-65...Shift valve, 66-68...Shift solenoid, 97...
...Cut back valve.
Claims (1)
操作を行う複数のシフトバルブを備え、該シフト
バルブをそれぞれのシフトソレノイドの組み合わ
せ作動により切換えて変速制御する変速制御手段
と、上記シフトソレノイドの作動状態の組合せに
より高速側でライン圧を低下させるカツトバツク
制御を行うカツトバツク手段と、リバースレンジ
のソレノイドパターンをフエイルセーフ上高速段
のパターンに設定しているパターン設定手段とを
備えた自動変速機において、リバースレンジ選択
時の低速状態ではカツトバツクのないソレノイド
パターンに変更するパターン変更手段を備えたこ
とを特徴とする自動変速機の制御装置。 A shift control means comprising a plurality of shift valves for performing a shift operation by switching a power transmission path of a shift gear mechanism, and controlling the shift by switching the shift valves by a combined operation of respective shift solenoids; In an automatic transmission equipped with cutback means that performs cutback control to reduce line pressure on the high speed side by combination, and pattern setting means that sets the reverse range solenoid pattern to a fail-safe upper high speed gear pattern, reverse range selection is possible. 1. A control device for an automatic transmission, comprising a pattern changing means for changing a solenoid pattern to a solenoid pattern without cutback in low speed conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989035279U JPH0716928Y2 (en) | 1989-03-28 | 1989-03-28 | Automatic transmission control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989035279U JPH0716928Y2 (en) | 1989-03-28 | 1989-03-28 | Automatic transmission control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02125259U true JPH02125259U (en) | 1990-10-16 |
| JPH0716928Y2 JPH0716928Y2 (en) | 1995-04-19 |
Family
ID=31540490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989035279U Expired - Lifetime JPH0716928Y2 (en) | 1989-03-28 | 1989-03-28 | Automatic transmission control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716928Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63251651A (en) * | 1987-04-09 | 1988-10-19 | Aisin Warner Ltd | Hydraulic control device for automatic transmission |
-
1989
- 1989-03-28 JP JP1989035279U patent/JPH0716928Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63251651A (en) * | 1987-04-09 | 1988-10-19 | Aisin Warner Ltd | Hydraulic control device for automatic transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0716928Y2 (en) | 1995-04-19 |
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