JPH0335366U - - Google Patents
Info
- Publication number
- JPH0335366U JPH0335366U JP1989095633U JP9563389U JPH0335366U JP H0335366 U JPH0335366 U JP H0335366U JP 1989095633 U JP1989095633 U JP 1989095633U JP 9563389 U JP9563389 U JP 9563389U JP H0335366 U JPH0335366 U JP H0335366U
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- hydraulic switching
- switching valves
- control means
- specified
- 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
Landscapes
- Control Of Transmission Device (AREA)
Description
第１図は本考案の一実施例としての自動変速機
の変速制御装置の全体構成図、第２図は同上装置
ので用いるソレノイドバルブの変速段と切り替え
信号との対応を説明する図、第３図は同上装置内
のエンジン回転数と出力信号の切り替え説明図、
第４図は同上装置で用いる変速段算出マツプの特
性線図である。
１……エンジン、３……変速機、４……油圧切
り替え装置、５，６……ソレノイドバルブ、７…
…コントローラ、８……フエイルセーフ回路、１
０……マイクロコンピユータ、１６……エンジン
回転センサ、１７……入力回転センサ、１８……
出力回転かセンサ、２０……シフトレバー。
Fig. 1 is an overall configuration diagram of a shift control device for an automatic transmission as an embodiment of the present invention, Fig. 2 is a diagram illustrating the correspondence between gear stages of solenoid valves used in the above device and switching signals, and Fig. 3 The figure is an explanatory diagram of switching the engine speed and output signal in the same device,
FIG. 4 is a characteristic diagram of a gear position calculation map used in the above device. 1... Engine, 3... Transmission, 4... Hydraulic switching device, 5, 6... Solenoid valve, 7...
...Controller, 8...Failsafe circuit, 1
0... Microcomputer, 16... Engine rotation sensor, 17... Input rotation sensor, 18...
Output rotation sensor, 20...shift lever.
Claims (1)
とを制御手段が取り込むと共にこれら両情報に応
じた適正変速段を決定し、更に、上記制御手段が
その適正変速段を確保すべく変速機の油圧回路の
第１第２の各油圧切り替え弁を各駆動回路を介し
て切り替え駆動させ、かつ、上記変速機の入出力
軸の回転数の差分が規定値を上回つていると上記
第１第２の各油圧切り替え弁への切り替え信号を
共にオフにするホールド段ロツクを行なう構成の
自動変速機の変速制御装置において、上記制御手
段はシフトポジシヨンが規定発進レンジで、上記
エンジン回転数が規定回転数以下で、上記第１第
２の各油圧切り替え弁への切り替え信号が共にオ
フである時、上記第１第２の各油圧切り替え弁へ
の切り替え信号の少なくとも一方をオンに切り替
えて上記変速機を規定発進段に保持することを特
徴とする自動変速機の変速制御装置。 The control means takes in the output shaft rotation information of the transmission and the engine load information, determines an appropriate gear position according to both of these information, and furthermore, the control means adjusts the oil pressure of the transmission to ensure the appropriate gear position. When the first and second hydraulic switching valves of the circuit are switched and driven via the respective drive circuits, and the difference in the rotational speed of the input and output shafts of the transmission exceeds a specified value, the first and second hydraulic switching valves are switched and driven. In a shift control device for an automatic transmission configured to perform a hold stage lock in which switching signals to each hydraulic switching valve are both turned off, the control means is configured such that the shift position is in a specified starting range and the engine speed is in a specified rotation range. and when the switching signals to the first and second hydraulic switching valves are both off, at least one of the switching signals to the first and second hydraulic switching valves is turned on to control the transmission. 1. A shift control device for an automatic transmission, characterized in that the gear is maintained at a specified starting gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989095633U JPH0747638Y2 (en) | 1989-08-15 | 1989-08-15 | Shift control device for automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989095633U JPH0747638Y2 (en) | 1989-08-15 | 1989-08-15 | Shift control device for automatic transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0335366U true JPH0335366U (en) | 1991-04-05 |
| JPH0747638Y2 JPH0747638Y2 (en) | 1995-11-01 |
Family
ID=31644890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989095633U Expired - Lifetime JPH0747638Y2 (en) | 1989-08-15 | 1989-08-15 | Shift control device for automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0747638Y2 (en) |
-
1989
- 1989-08-15 JP JP1989095633U patent/JPH0747638Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0747638Y2 (en) | 1995-11-01 |
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