JPH0197054U - - Google Patents
Info
- Publication number
- JPH0197054U JPH0197054U JP19363987U JP19363987U JPH0197054U JP H0197054 U JPH0197054 U JP H0197054U JP 19363987 U JP19363987 U JP 19363987U JP 19363987 U JP19363987 U JP 19363987U JP H0197054 U JPH0197054 U JP H0197054U
- Authority
- JP
- Japan
- Prior art keywords
- compression ratio
- discriminating
- detection means
- internal combustion
- combustion engine
- 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
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図の考案の構成を示すクレーム対応図、第
２図はこの考案の一実施例を示す構成説明図、第
３図はこの実施例の圧縮比可変機構の一部を示す
断面図、第４図はこの実施例の制御を示すフロー
チヤート図、第５図は筒内圧とクランク角との関
係で燃焼速度を検出する特性図、第６図はこの実
施例の補助空気量の制御を示すフローチヤート、
第７図はこの実施例の燃料噴射制御を示すフロー
チヤートである。
Ａ……内燃機関、Ｂ……判別手段、Ｃ……圧縮
比検出手段、Ｄ……圧縮比異常検出手段、Ｅ……
アイドル補正手段。
Fig. 1 is a claim correspondence diagram showing the structure of the invention, Fig. 2 is an explanatory view of the structure showing an embodiment of this invention, Fig. 3 is a sectional view showing a part of the variable compression ratio mechanism of this embodiment, Fig. 4 is a flowchart showing the control of this embodiment, Fig. 5 is a characteristic diagram for detecting the combustion rate based on the relationship between cylinder pressure and crank angle, and Fig. 6 shows the control of the amount of auxiliary air in this embodiment. flowchart,
FIG. 7 is a flowchart showing fuel injection control in this embodiment. A...Internal combustion engine, B...Discrimination means, C...Compression ratio detection means, D...Compression ratio abnormality detection means, E...
Idle correction means.
Claims (1)
関運転状態に基づいて高・低圧縮比領域を判別す
る判別手段と、実際の圧縮比を検出する圧縮比検
出手段と、上記判別手段の判別値と圧縮比検出手
段の検出値とを比較して圧縮比の正常、異常を検
出する異常検出手段と、この異常検出手段により
低圧縮比状態に固定していると判断された場合は
、アイドル回転数の目標回転数を所定量増加する
アイドル補正手段とを備えたことを特徴とする可
変圧縮比内燃機関の制御装置。 In an internal combustion engine equipped with a variable compression ratio mechanism, a discriminating means for discriminating between high and low compression ratio regions based on engine operating conditions, a compression ratio detecting means for detecting an actual compression ratio, and a discriminant value of the discriminating means. Abnormality detection means detects whether the compression ratio is normal or abnormal by comparing the detection value of the compression ratio detection means, and if the abnormality detection means determines that the compression ratio is fixed at a low compression ratio state, the idle rotation speed is determined. 1. A control device for a variable compression ratio internal combustion engine, comprising: idle correction means for increasing a target rotational speed of the engine by a predetermined amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19363987U JPH0197054U (en) | 1987-12-21 | 1987-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19363987U JPH0197054U (en) | 1987-12-21 | 1987-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0197054U true JPH0197054U (en) | 1989-06-28 |
Family
ID=31484421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19363987U Pending JPH0197054U (en) | 1987-12-21 | 1987-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0197054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7213543B2 (en) | 2003-04-04 | 2007-05-08 | Toyota Jidosha Kabushiki Kaisha | Technique of detecting failure of compression ratio varying mechanism and controlling internal combustion engine |
-
1987
- 1987-12-21 JP JP19363987U patent/JPH0197054U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7213543B2 (en) | 2003-04-04 | 2007-05-08 | Toyota Jidosha Kabushiki Kaisha | Technique of detecting failure of compression ratio varying mechanism and controlling internal combustion engine |