JPS6348136U - - Google Patents
Info
- Publication number
- JPS6348136U JPS6348136U JP14178886U JP14178886U JPS6348136U JP S6348136 U JPS6348136 U JP S6348136U JP 14178886 U JP14178886 U JP 14178886U JP 14178886 U JP14178886 U JP 14178886U JP S6348136 U JPS6348136 U JP S6348136U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder pressure
- data
- sampling
- samples
- statistics
- 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
- 238000005070 sampling Methods 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
- Testing Of Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
第１図は本考案の構成を示す機能ブロツク図、
第２図は本考案の一実施例を示すシステム図、第
３図は筒内圧力センサの具体例を示す図、第４図
はアンプの具体例を示す図、第５図は処理手順を
示すフローチヤート、第６図は筒内圧力波形の具
体例を示す図である。
１…筒内圧力センサ、２…アンプ、３…Ａ／Ｄ
変換器、４…クランク角センサ、５…マイクロコ
ンピユータ。
Figure 1 is a functional block diagram showing the configuration of the present invention.
Fig. 2 is a system diagram showing an embodiment of the present invention, Fig. 3 is a diagram showing a specific example of an in-cylinder pressure sensor, Fig. 4 is a diagram showing a specific example of an amplifier, and Fig. 5 is a diagram showing a processing procedure. The flowchart, FIG. 6, is a diagram showing a specific example of the cylinder pressure waveform. 1... Cylinder pressure sensor, 2... Amplifier, 3... A/D
Converter, 4...Crank angle sensor, 5...Microcomputer.
Claims (1)
力センサと、所定クランク角度区間の筒内圧力を
サンプリングするサンプリング手段と、サンプリ
ングデータのうち筒内圧力の最大値近傍の圧力が
大きい部分のデータを選択するデータ選択手段と
、選択されたデータよりその統計量を算出する統
計量算出手段とからなる内燃機関の燃焼状態検出
装置。 A cylinder pressure sensor that outputs a signal corresponding to the engine cylinder pressure, a sampling means that samples the cylinder pressure in a predetermined crank angle section, and a sampling means that samples the cylinder pressure in the vicinity of the maximum cylinder pressure of the sampling data. A combustion state detection device for an internal combustion engine, comprising a data selection means for selecting data, and a statistics calculation means for calculating statistics from the selected data.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986141788U JPH0629709Y2 (en) | 1986-09-18 | 1986-09-18 | Combustion state detection device for internal combustion engine |
| US07/831,633 US5153834A (en) | 1986-09-10 | 1992-02-10 | Method and apparatus for detecting a misfire in a combustion chamber of an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986141788U JPH0629709Y2 (en) | 1986-09-18 | 1986-09-18 | Combustion state detection device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6348136U true JPS6348136U (en) | 1988-04-01 |
| JPH0629709Y2 JPH0629709Y2 (en) | 1994-08-10 |
Family
ID=31049901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986141788U Expired - Lifetime JPH0629709Y2 (en) | 1986-09-10 | 1986-09-18 | Combustion state detection device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629709Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57114837A (en) * | 1981-01-08 | 1982-07-16 | Nippon Soken Inc | Detector for ignition limit for internal combustion engine |
-
1986
- 1986-09-18 JP JP1986141788U patent/JPH0629709Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57114837A (en) * | 1981-01-08 | 1982-07-16 | Nippon Soken Inc | Detector for ignition limit for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0629709Y2 (en) | 1994-08-10 |
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