JPH034967U - - Google Patents
Info
- Publication number
- JPH034967U JPH034967U JP6459189U JP6459189U JPH034967U JP H034967 U JPH034967 U JP H034967U JP 6459189 U JP6459189 U JP 6459189U JP 6459189 U JP6459189 U JP 6459189U JP H034967 U JPH034967 U JP H034967U
- Authority
- JP
- Japan
- Prior art keywords
- speed
- engine
- valve
- valve timing
- low
- 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 7
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims 1
- 230000005856 abnormality Effects 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Landscapes
- Control Of Transmission Device (AREA)
Description
第１図は本考案に係るバルブタイミング制御方
法を適用するエンジン及び制御装置の全体構成図
、第２図ａ，ｂはエンジンの動弁装置及びその制
御系を示す図、第３図は第１図の自動変速機の構
成図、第４図は第１図の自動変速機のクラツチの
油圧制御回路を示す図、第５図は本考案に係る自
動変速機の変速制御を行うための変速マツプを示
す図、第６図は本考案に依る自動変速機の変速制
御用プログラムのフローチヤートである。
１……内燃エンジン、４……スロツトル弁開度
センサ、５……電子コントロールユニツト（ＥＣ
Ｕ）、１１……エンジン回転数センサ、１６……
車速センサ、１９……自動変速機、２３……電磁
弁、３０……動弁装置、４０……吸気弁又は排気
弁、Ｃ１，Ｃ２，Ｃ３，Ｃ４……クラツチ、６２
……マニアル弁、６３……シフト弁ユニツト。
FIG. 1 is an overall configuration diagram of an engine and a control device to which the valve timing control method according to the present invention is applied, FIGS. 2a and 2b are diagrams showing an engine valve train and its control system, and FIG. FIG. 4 is a diagram showing a hydraulic control circuit for the clutch of the automatic transmission shown in FIG. 1, and FIG. 5 is a shift map for performing speed change control of the automatic transmission according to the present invention. FIG. 6 is a flowchart of a shift control program for an automatic transmission according to the present invention. 1... Internal combustion engine, 4... Throttle valve opening sensor, 5... Electronic control unit (EC
U), 11... Engine speed sensor, 16...
Vehicle speed sensor, 19... automatic transmission, 23... solenoid valve, 30... valve train, 40... intake valve or exhaust valve, C1 , C2 , C3 , C4 ... clutch, 62
...Manual valve, 63...Shift valve unit.
Claims (1)
態をエンジンの低回転領域に適した低速バルブタ
イミングと高回転領域に適した高速バルブタイミ
ングとに切換可能な弁作動機構を有する内燃エン
ジンを搭載した車輌に用いられる自動変速機であ
つて、エンジンのスロツトル開度が所定値以上の
高スロツトル開度領域ではエンジン回転数に基づ
いて変速を行うようにしたものにおいて、前記高
スロツトル開度領域での変速の判定基準となるエ
ンジン回転数の変速判定値を、前記弁作動状態が
低速バルブタイミングに保持される前記内燃エン
ジンの制御系の異常状態において変更する変速判
定値変更手段を備えたことを特徴とする車輌用自
動変速機の変速制御装置。 ２ エンジン回転数が所定のレブリミツタ値に上
昇したとき燃料の供給を停止するようにし、この
レブリミツタ値を低速バルブタイミングにおいて
は高速バルブタイミングにおける値より低く設定
すると共に、前記内燃エンジンの制御系の異常状
態における前記変速判定値を低速バルブタイミン
グにおいて設定されるレブリミツタ値より低く設
定したことを特徴とする請求項１記載の車輌用自
動変速機の変速制御装置。[Claims for Utility Model Registration] 1. Valve operation capable of switching the valve operating state of at least one of the intake valve and the exhaust valve between low-speed valve timing suitable for the low-speed range of the engine and high-speed valve timing suitable for the high-speed range of the engine. In an automatic transmission used in a vehicle equipped with an internal combustion engine having a mechanism, the gear is changed based on the engine speed in a high throttle opening range where the engine throttle opening is equal to or higher than a predetermined value. A shift decision value for changing a shift decision value of engine rotation speed, which is a criterion for shifting in the high throttle opening region, in an abnormal state of a control system of the internal combustion engine in which the valve operating state is maintained at a low valve timing. A speed change control device for an automatic transmission for a vehicle, characterized by comprising a changing means. 2. Fuel supply is stopped when the engine speed rises to a predetermined rev limiter value, and this rev limiter value is set lower at low speed valve timing than at high speed valve timing, and an abnormality in the control system of the internal combustion engine is detected. 2. The shift control device for an automatic transmission for a vehicle according to claim 1, wherein the shift determination value in the state is set lower than a rev limiter value set at low speed valve timing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989064591U JPH0716925Y2 (en) | 1989-06-02 | 1989-06-02 | Shift control device for automatic transmission for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989064591U JPH0716925Y2 (en) | 1989-06-02 | 1989-06-02 | Shift control device for automatic transmission for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH034967U true JPH034967U (en) | 1991-01-18 |
| JPH0716925Y2 JPH0716925Y2 (en) | 1995-04-19 |
Family
ID=31595673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989064591U Expired - Lifetime JPH0716925Y2 (en) | 1989-06-02 | 1989-06-02 | Shift control device for automatic transmission for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716925Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4933289A (en) * | 1972-07-27 | 1974-03-27 | ||
| JPS62146734A (en) * | 1985-12-20 | 1987-06-30 | Toyota Motor Corp | Integral control device of automatic speed changer and engine |
-
1989
- 1989-06-02 JP JP1989064591U patent/JPH0716925Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4933289A (en) * | 1972-07-27 | 1974-03-27 | ||
| JPS62146734A (en) * | 1985-12-20 | 1987-06-30 | Toyota Motor Corp | Integral control device of automatic speed changer and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0716925Y2 (en) | 1995-04-19 |
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