JPH01144555U - - Google Patents
Info
- Publication number
- JPH01144555U JPH01144555U JP1988040238U JP4023888U JPH01144555U JP H01144555 U JPH01144555 U JP H01144555U JP 1988040238 U JP1988040238 U JP 1988040238U JP 4023888 U JP4023888 U JP 4023888U JP H01144555 U JPH01144555 U JP H01144555U
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- gear
- gear mechanism
- gear ratio
- friction elements
- 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
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Control Of Transmission Device (AREA)
Description
第１図は本考案変速制御装置の概念図、第２図
は本考案装置の一実施例を示す車両用パワートレ
ーンの制御システム図、第３図乃至第６図は夫々
同例における変速制御用コンピユータの制御プロ
グラムを示すフローチヤート、第７および９図ａ
，ｂは、夫々１→２変速用ギヤ比設定値の特性図
、第８図ａ，ｂは夫々１→４変速用ギヤ比設定値
の特性図、第１０図は自動変速機の変速パターン
図、第１１図は本考案装置による変速動作波形図
である。
１…電子制御燃料噴射エンジン、２…自動変速
機、３…デイフアレンシヤルギヤ、４…駆動車輪
、５…エンジン制御用コンピユータ、６…エンジ
ン回転センサ、７…車速センサ、８…スロツトル
センサ、９…吸入空気量センサ、１０…トルクコ
ンバータ、１１…変速歯車機構、１４…変速制御
用コンピユータ、１５…コントロールバルブ、Ａ
，Ｂ…変速制御用シフトソレノイド、１６…ライ
ン圧制御用デユーテイソレノイド、１７…入力回
転センサ、１８…出力回転センサ、１９…アイド
ルスイツチ、２０…温度センサ。
Fig. 1 is a conceptual diagram of the shift control device of the present invention, Fig. 2 is a control system diagram of a vehicle power train showing one embodiment of the device of the present invention, and Figs. 3 to 6 are for shift control in the same example. Flowchart showing the computer control program, Figures 7 and 9a
, b are characteristic diagrams of gear ratio setting values for 1→2 shifting, respectively, FIGS. 8a and b are characteristic diagrams of gear ratio setting values for 1→4 shifting, respectively, and FIG. 10 is a shift pattern diagram of an automatic transmission. , FIG. 11 is a waveform diagram of the speed change operation by the device of the present invention. DESCRIPTION OF SYMBOLS 1...Electronically controlled fuel injection engine, 2...Automatic transmission, 3...Differential gear, 4...Drive wheel, 5...Engine control computer, 6...Engine rotation sensor, 7...Vehicle speed sensor, 8...Throttle sensor , 9... Intake air amount sensor, 10... Torque converter, 11... Speed change gear mechanism, 14... Speed change control computer, 15... Control valve, A
, B...Shift solenoid for speed change control, 16...Duty solenoid for line pressure control, 17...Input rotation sensor, 18...Output rotation sensor, 19...Idle switch, 20...Temperature sensor.
Claims (1)
せて所定変速段を決定し、作動する摩擦要素の変
更により他の変速段への変速を行い、変速歯車機
構のエンジンがパワーオフ状態へ移行したことに
よるアツプシフト判定後所定時期に、対応するア
ツプシフト変速を行うようにした自動変速機にお
いて、 前記変速歯車機構の入出力回転数間の比で表わ
されるギヤ比を求めるギヤ比演算手段と、 変速機内部温度を検出する温度検出手段と、 前記ギヤ比が前記変速機内部温度に応じて決定
される設定値に達した時を前記所定時期とする変
速時期決定手段とを設けてなることを特徴とする
自動変速機の変速制御装置。[Claims for Utility Model Registration] Various friction elements of the transmission gear mechanism are selectively operated to determine a predetermined gear position, and by changing the operating friction elements, the gear is shifted to another gear position, and the transmission gear mechanism is operated. In an automatic transmission that performs a corresponding upshift at a predetermined time after an upshift is determined due to the engine transitioning to a power-off state, a gear ratio expressed as a ratio between the input and output rotational speeds of the transmission gear mechanism is determined. a gear ratio calculating means; a temperature detecting means for detecting the internal temperature of the transmission; and a shift timing determining means that sets the predetermined time to be the time when the gear ratio reaches a set value determined according to the internal temperature of the transmission. A speed change control device for an automatic transmission, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988040238U JPH01144555U (en) | 1988-03-29 | 1988-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988040238U JPH01144555U (en) | 1988-03-29 | 1988-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01144555U true JPH01144555U (en) | 1989-10-04 |
Family
ID=31266712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988040238U Pending JPH01144555U (en) | 1988-03-29 | 1988-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01144555U (en) |
-
1988
- 1988-03-29 JP JP1988040238U patent/JPH01144555U/ja active Pending