JPS6447932U - - Google Patents
Info
- Publication number
- JPS6447932U JPS6447932U JP14406087U JP14406087U JPS6447932U JP S6447932 U JPS6447932 U JP S6447932U JP 14406087 U JP14406087 U JP 14406087U JP 14406087 U JP14406087 U JP 14406087U JP S6447932 U JPS6447932 U JP S6447932U
- Authority
- JP
- Japan
- Prior art keywords
- opening
- exhaust valve
- sensor
- detection signal
- diagram
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 15
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
第１図ないし第４図はこの考案の第１実施例を
説明するための図であり、第１図は要部の構成図
、第２図は排気バルブとの関係の説明図、第３図
は制御系のブロツク構成図、第４図は制御特性の
変更例の説明図である。第５図および第６図はこ
の考案の第２実施例を説明するための図であり、
第５図は制御装置全体のブロツク構成図、第６図
は要部の構成図である。第７図および第８図はこ
の考案の第３実施例を説明するための図であり、
第７図は要部の構成図、第８図は第７図の―
線に沿う断面図である。第９図ａは排気バルブを
開閉動作させる駆動モータ用の駆動回路の構成例
を説明するための回路図、同図ｂは駆動モータの
起動時における立ち上がり特性の説明図、第１０
図は排気バルブを開閉動作させる駆動モータ用の
駆動回路の従来例を説明するための回路図である
。第１１図は従来の制御装置のブロツク構成図で
ある。
１１……２サイクルエンジン、１４……排気通
路、１６……排気バルブ、２３……駆動モータ、
３３……ポテンシヨメータ（開度センサー）、４
０……比較器、４１……回転数検出器、４２……
モータ駆動部。
Figures 1 to 4 are diagrams for explaining the first embodiment of this invention, in which Figure 1 is a configuration diagram of the main part, Figure 2 is an explanatory diagram of the relationship with the exhaust valve, and Figure 3 is a diagram for explaining the relationship with the exhaust valve. 4 is a block diagram of the control system, and FIG. 4 is an explanatory diagram of an example of a change in control characteristics. 5 and 6 are diagrams for explaining a second embodiment of this invention,
FIG. 5 is a block diagram of the entire control device, and FIG. 6 is a diagram of the main parts. FIG. 7 and FIG. 8 are diagrams for explaining the third embodiment of this invention,
Figure 7 is a configuration diagram of the main parts, Figure 8 is the diagram of Figure 7.
It is a sectional view along a line. FIG. 9a is a circuit diagram for explaining an example of the configuration of a drive circuit for a drive motor that opens and closes an exhaust valve, FIG.
The figure is a circuit diagram for explaining a conventional example of a drive circuit for a drive motor that opens and closes an exhaust valve. FIG. 11 is a block diagram of a conventional control device. 11...2 cycle engine, 14...exhaust passage, 16...exhaust valve, 23...drive motor,
33... Potentiometer (opening sensor), 4
0... Comparator, 41... Rotation speed detector, 42...
Motor drive unit.
Claims (1)
気バルブの開度を開度センサーによつて検出し、
その開度センサーの開度検出信号と、前記排気バ
ルブの目標開度に対応する開度制御信号とを比較
しつつ、その開度制御信号にしたがつて前記排気
バルブを開閉制御する排気バルブの制御装置にお
いて、 前記開度センサーは、前記排気バルブの開度に
対応する開度検出信号の出力特性が異なるものと
適宜交換可能に装備されていることを特徴とする
排気バルブの制御装置。[Scope of claim for utility model registration] Detecting the opening degree of an exhaust valve provided in the exhaust passage of a two-stroke engine using an opening sensor,
The opening detection signal of the opening sensor is compared with the opening control signal corresponding to the target opening of the exhaust valve, and the exhaust valve is controlled to open and close the exhaust valve according to the opening control signal. The control device for an exhaust valve, wherein the opening sensor is replaceable with one having a different output characteristic of an opening detection signal corresponding to the opening of the exhaust valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987144060U JPH0612198Y2 (en) | 1987-09-21 | 1987-09-21 | Exhaust valve controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987144060U JPH0612198Y2 (en) | 1987-09-21 | 1987-09-21 | Exhaust valve controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6447932U true JPS6447932U (en) | 1989-03-24 |
| JPH0612198Y2 JPH0612198Y2 (en) | 1994-03-30 |
Family
ID=31411435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987144060U Expired - Lifetime JPH0612198Y2 (en) | 1987-09-21 | 1987-09-21 | Exhaust valve controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612198Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021534A (en) * | 2000-07-04 | 2002-01-23 | Bosch Braking Systems Co Ltd | Exhaust emission control device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158514A (en) * | 1978-06-05 | 1979-12-14 | Yamaha Motor Co Ltd | Discharge time controller fir 2-cycle engine |
-
1987
- 1987-09-21 JP JP1987144060U patent/JPH0612198Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158514A (en) * | 1978-06-05 | 1979-12-14 | Yamaha Motor Co Ltd | Discharge time controller fir 2-cycle engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021534A (en) * | 2000-07-04 | 2002-01-23 | Bosch Braking Systems Co Ltd | Exhaust emission control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0612198Y2 (en) | 1994-03-30 |