JPH01174559U - - Google Patents
Info
- Publication number
- JPH01174559U JPH01174559U JP7030788U JP7030788U JPH01174559U JP H01174559 U JPH01174559 U JP H01174559U JP 7030788 U JP7030788 U JP 7030788U JP 7030788 U JP7030788 U JP 7030788U JP H01174559 U JPH01174559 U JP H01174559U
- Authority
- JP
- Japan
- Prior art keywords
- oxygen concentration
- exhaust gas
- concentration sensor
- gas recirculation
- recirculation rate
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims 7
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図はこの考案の実施例構成図、第２図はピ
ンホール型センサの原理構成図、第３図は酸素濃
度とセンサ出力の関係グラフ、第４図は組立状態
でのセンサの構成を示す図、第５図は燃料噴射制
御を示すフローチヤート。
Figure 1 shows the configuration of an embodiment of this invention, Figure 2 shows the principle configuration of a pinhole sensor, Figure 3 shows a graph of the relationship between oxygen concentration and sensor output, and Figure 4 shows the configuration of the sensor in the assembled state. FIG. 5 is a flowchart showing fuel injection control.
Claims (1)
、還流排気ガスと吸入新気との混合ガスにおける
酸素濃度を検出する第１の酸素濃度センサと、排
気ガス単独中の酸素濃度を検出する第２の酸素濃
度センサと、第１の酸素濃度センサ及び第２の酸
素濃度センサの酸素濃度検出結果より排気ガス再
循環率を算出する排気ガス再循環率算出手段とか
ら構成される排気ガス再循環率測定装置。 In an internal combustion engine equipped with an exhaust gas recirculation device, a first oxygen concentration sensor detects the oxygen concentration in a mixed gas of recirculated exhaust gas and intake fresh air, and a second oxygen concentration sensor detects the oxygen concentration in the exhaust gas alone. Exhaust gas recirculation rate measurement consisting of an oxygen concentration sensor and an exhaust gas recirculation rate calculation means that calculates the exhaust gas recirculation rate from the oxygen concentration detection results of the first oxygen concentration sensor and the second oxygen concentration sensor. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7030788U JPH01174559U (en) | 1988-05-30 | 1988-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7030788U JPH01174559U (en) | 1988-05-30 | 1988-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01174559U true JPH01174559U (en) | 1989-12-12 |
Family
ID=31295559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7030788U Pending JPH01174559U (en) | 1988-05-30 | 1988-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01174559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010203281A (en) * | 2009-03-02 | 2010-09-16 | Bosch Corp | Egr control device |
| JP2012241569A (en) * | 2011-05-17 | 2012-12-10 | Isuzu Motors Ltd | Method for controlling egr of internal combustion engine, and internal combustion engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267270A (en) * | 1985-09-19 | 1987-03-26 | Mitsubishi Electric Corp | Exhaust reflux controlling method for internal combustion engine |
-
1988
- 1988-05-30 JP JP7030788U patent/JPH01174559U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6267270A (en) * | 1985-09-19 | 1987-03-26 | Mitsubishi Electric Corp | Exhaust reflux controlling method for internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010203281A (en) * | 2009-03-02 | 2010-09-16 | Bosch Corp | Egr control device |
| JP2012241569A (en) * | 2011-05-17 | 2012-12-10 | Isuzu Motors Ltd | Method for controlling egr of internal combustion engine, and internal combustion engine |
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