JPS60129665U - Air fuel ratio detection device - Google Patents
Air fuel ratio detection deviceInfo
- Publication number
- JPS60129665U JPS60129665U JP1804184U JP1804184U JPS60129665U JP S60129665 U JPS60129665 U JP S60129665U JP 1804184 U JP1804184 U JP 1804184U JP 1804184 U JP1804184 U JP 1804184U JP S60129665 U JPS60129665 U JP S60129665U
- Authority
- JP
- Japan
- Prior art keywords
- current
- fuel ratio
- value
- air
- ratio detection
- 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
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１〜３図は従来の空燃比検出装置を示す図であり、第
１図はその酸素センサの断面図、第２図はその酸素セン
サと外部回路との接続を示す図、第３図はそのｌ５−Ａ
／Ｆ特性を示す図、第４〜７図は本考案の第１実施例を
示す図であり、第４図 ゛はその酸素センサの断面
図、第５図はその酸素センサと外部回路との接続を示す
図、第６図はその外部回路の回路構成図、第７図はその
Ｉｐ−Ａ／Ｆ特性を示す図、第８９．９図は本考案の第
２実施例を示す図であり、第８図はその酸素センサと外
部回路との接続を示す図、第９図はその外部回路の回路
構成図、第１０〜１２図は本考案の第３実施例を示す図
であり、第１０図はその酸素センサの断面図、第１１図
はその酸素センサと外部回路との接続を示す図、第１２
図はその外部回路の回路構成図である。
２６．６３・・・・・・センサ部、２７，６４・・・・
・・ポンプ部、２８，６５・・・・・・酸素センサ、４
２，４９゜７３・・・・・・電流供給手段、４３．４８
・・・・・・空燃比検出手段、Ｒ１，Ｒ２１・・・・・
・可変抵抗（電流値補正手段）。
・１
「４・
Ｌ〜へ」
１−ｆ−下＝ン ・Figures 1 to 3 are diagrams showing a conventional air-fuel ratio detection device, in which Figure 1 is a cross-sectional view of the oxygen sensor, Figure 2 is a diagram showing the connection between the oxygen sensor and an external circuit, and Figure 3 is a diagram showing the connection between the oxygen sensor and an external circuit. Its l5-A
Figures 4 to 7 are diagrams showing the /F characteristics, and Figures 4 to 7 are diagrams showing the first embodiment of the present invention. 6 is a diagram showing the circuit configuration of the external circuit, FIG. 7 is a diagram showing the Ip-A/F characteristics, and FIG. 89.9 is a diagram showing the second embodiment of the present invention. , FIG. 8 is a diagram showing the connection between the oxygen sensor and an external circuit, FIG. 9 is a circuit diagram of the external circuit, and FIGS. 10 to 12 are diagrams showing a third embodiment of the present invention. Figure 10 is a sectional view of the oxygen sensor, Figure 11 is a diagram showing the connection between the oxygen sensor and an external circuit, and Figure 12 is a diagram showing the connection between the oxygen sensor and an external circuit.
The figure is a circuit configuration diagram of the external circuit. 26.63...Sensor part, 27,64...
...Pump part, 28,65...Oxygen sensor, 4
2,49゜73...Current supply means, 43.48
...Air-fuel ratio detection means, R1, R21...
- Variable resistance (current value correction means).・1 "4. To L～" 1-f-down=n ・
Claims (2)
と、基準電極を有し、流し込み電流により両電極間を酸
素イオンが移動して排気管内の酸素濃度に対応した空燃
比で出力電圧の急変するセンサ部と、流し込み電流が供
給されるとともに、この流し込み電流の値に応じて該セ
ンサ部の両電極間に酸素イオンを移動させるポンプ部と
、からなる酸素センサと、前記センサ部の出力電圧が所
牢値となるように前記ポンプ部に流し込み電流を供給す
る電流供給手段と、排気管内が所定空燃比に維持されて
いるとき検出される流し込み電流の値が所定基準値と等
しくなるように流し込み電流の検出値を補正する電流値
補正手段と、電流値補正手段により補正された流し込み
電流の値を検出して空燃比を検出する空燃比検出手段と
、を備えたことを特徴とする空燃比検出装置。(1) It has an oxygen electrode and a reference electrode with an oxygen ion-conducting solid electrolyte sandwiched between them. Oxygen ions move between the two electrodes by flowing current, and the output voltage is adjusted to an air-fuel ratio corresponding to the oxygen concentration in the exhaust pipe. An oxygen sensor comprising a sensor part that changes suddenly, and a pump part to which an inflow current is supplied and which moves oxygen ions between both electrodes of the sensor part according to the value of the inflow current, and an output of the sensor part. A current supply means for supplying current to the pump section so that the voltage becomes a specified value, and a current supply means so that the value of the current detected when the inside of the exhaust pipe is maintained at a predetermined air-fuel ratio is equal to a predetermined reference value. The present invention is characterized by comprising a current value correction means for correcting the detected value of the current flowing into the device, and an air-fuel ratio detection means for detecting the air-fuel ratio by detecting the value of the current flowing into the current corrected by the current value correction means. Air fuel ratio detection device.
段との間に介挿された可変抵抗により構成され、その抵
抗値に応じて流し込み電流の検出値を補正することを特
徴とする実用新案登録請求の範囲第１項記載の空燃比検
出装置。(2) The current value correction means is comprised of a variable resistor inserted between the pump section and the air-fuel ratio detection means, and corrects the detected value of the inflow current according to the resistance value. An air-fuel ratio detection device according to claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1804184U JPS60129665U (en) | 1984-02-09 | 1984-02-09 | Air fuel ratio detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1804184U JPS60129665U (en) | 1984-02-09 | 1984-02-09 | Air fuel ratio detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60129665U true JPS60129665U (en) | 1985-08-30 |
Family
ID=30506306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1804184U Pending JPS60129665U (en) | 1984-02-09 | 1984-02-09 | Air fuel ratio detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60129665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62128138U (en) * | 1986-02-04 | 1987-08-13 | ||
| JPS63219859A (en) * | 1987-03-06 | 1988-09-13 | Hitachi Ltd | Engine control device |
-
1984
- 1984-02-09 JP JP1804184U patent/JPS60129665U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62128138U (en) * | 1986-02-04 | 1987-08-13 | ||
| JPS63219859A (en) * | 1987-03-06 | 1988-09-13 | Hitachi Ltd | Engine control device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0727391Y2 (en) | Air-fuel ratio controller for internal combustion engine | |
| JPS6063457A (en) | Air-fuel ratio sensor of engine | |
| JPS627063U (en) | ||
| JPS60129665U (en) | Air fuel ratio detection device | |
| JPS60138263A (en) | Exhaust gas recirculation mechanism for engine | |
| JPH07104324B2 (en) | Air-fuel ratio detector | |
| JP3110848B2 (en) | Air-fuel ratio detector | |
| JPS6354127B2 (en) | ||
| JPH0750070B2 (en) | Oxygen concentration detector | |
| JPH0437331B2 (en) | ||
| JPS58140465U (en) | Air fuel ratio control device | |
| JPS6060551A (en) | Air fuel ratio sensor of engine | |
| JPH0114917Y2 (en) | ||
| JPS60188372U (en) | Oxygen concentration detection device | |
| JPS58156260U (en) | Air fuel ratio discrimination device | |
| JPH0672863B2 (en) | Oxygen concentration detector | |
| JPS58156261U (en) | Air fuel ratio control device | |
| JPS60170770U (en) | oxygen concentration detector | |
| JPH0580618B2 (en) | ||
| JPH01155260A (en) | Detecting device of concentration of oxygen | |
| JPH04204371A (en) | Driving circuit for air-fuel ratio sensor | |
| JPS6255554A (en) | Air/fuel ratio controller for internal combustion engine | |
| JPS6255553A (en) | Oxygen concentration detector | |
| JPH0295855U (en) | ||
| JPH0580617B2 (en) |