JPS61182846U - - Google Patents
Info
- Publication number
- JPS61182846U JPS61182846U JP6687485U JP6687485U JPS61182846U JP S61182846 U JPS61182846 U JP S61182846U JP 6687485 U JP6687485 U JP 6687485U JP 6687485 U JP6687485 U JP 6687485U JP S61182846 U JPS61182846 U JP S61182846U
- Authority
- JP
- Japan
- Prior art keywords
- oxygen sensor
- lead poisoning
- monitoring
- fuel ratio
- air
- 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 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 206010027439 Metal poisoning Diseases 0.000 claims description 8
- 208000008127 lead poisoning Diseases 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000012806 monitoring device Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 208000005374 Poisoning Diseases 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図は本考案の１実施例の構成図、第２図は
空燃比制御用酸素センサの部分拡大図、第３図は
鉛被毒監視用酸素センサの部分拡大図、第４図は
鉛被毒判定の制御フローチヤート、第５図は各酸
素センサの特性と排気エミツシヨンとの関係図、
第６図は酸素センサの概略構成図、第７図は同上
酸素センサの出力特性図を示す。
１３……排気通路、１４……第１酸素センサ（
空燃比制御用）、１５……第２酸素センサ（鉛被
毒監視用）、１６……コントロールユニツト、１
８……警告ランプ。
Fig. 1 is a block diagram of one embodiment of the present invention, Fig. 2 is a partially enlarged view of an oxygen sensor for air-fuel ratio control, Fig. 3 is a partially enlarged view of an oxygen sensor for monitoring lead poisoning, and Fig. 4 is a partially enlarged view of an oxygen sensor for monitoring lead poisoning. Control flowchart for poisoning determination, Figure 5 is a diagram showing the relationship between the characteristics of each oxygen sensor and exhaust emissions,
FIG. 6 shows a schematic configuration diagram of the oxygen sensor, and FIG. 7 shows an output characteristic diagram of the same oxygen sensor. 13... Exhaust passage, 14... First oxygen sensor (
air-fuel ratio control), 15...Second oxygen sensor (for lead poisoning monitoring), 16...Control unit, 1
8... Warning lamp.
Claims (1)
いて空燃比をフイードバツク制御するようにした
内燃機関において、前記排気通路に前記酸素セン
サよりも鉛被毒感応性を高くした鉛被毒監視用酸
素センサを設け、該鉛被毒監視用酸素センサの出
力に基づいて空燃比制御用酸素センサの鉛被毒状
態を判定することを特徴とする酸素センサの鉛被
毒監視装置。 In an internal combustion engine in which the air-fuel ratio is feedback-controlled based on the output from an oxygen sensor installed in an exhaust passage, an oxygen sensor for monitoring lead poisoning is provided in the exhaust passage and has a higher sensitivity to lead poisoning than the oxygen sensor. 1. A lead poisoning monitoring device for an oxygen sensor, characterized in that a lead poisoning state of an air-fuel ratio control oxygen sensor is determined based on an output of the lead poisoning monitoring oxygen sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6687485U JPS61182846U (en) | 1985-05-08 | 1985-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6687485U JPS61182846U (en) | 1985-05-08 | 1985-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61182846U true JPS61182846U (en) | 1986-11-14 |
Family
ID=30600174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6687485U Pending JPS61182846U (en) | 1985-05-08 | 1985-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61182846U (en) |
-
1985
- 1985-05-08 JP JP6687485U patent/JPS61182846U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6218657U (en) | ||
| JPS6363581U (en) | ||
| JPS61182846U (en) | ||
| JPH0345447U (en) | ||
| JPS63181924U (en) | ||
| JPH021439U (en) | ||
| JPS6322358U (en) | ||
| JPH0276136U (en) | ||
| JPH03106148U (en) | ||
| JPS61128313U (en) | ||
| JPS6446415U (en) | ||
| JPH0237243U (en) | ||
| JPH0442239U (en) | ||
| JPS61194747U (en) | ||
| JPS61199664U (en) | ||
| JPS6456553U (en) | ||
| JPS59165518U (en) | Internal combustion engine exhaust gas purification device | |
| JPS61130708U (en) | ||
| JPS61152962U (en) | ||
| JPH0283341U (en) | ||
| JPS61186753U (en) | ||
| JPS6229539U (en) | ||
| JPS62105345U (en) | ||
| JPS59952U (en) | Oxygen concentration detection device for internal combustion engines | |
| JPS6163464U (en) |