JPS6191157U - - Google Patents
Info
- Publication number
- JPS6191157U JPS6191157U JP17562184U JP17562184U JPS6191157U JP S6191157 U JPS6191157 U JP S6191157U JP 17562184 U JP17562184 U JP 17562184U JP 17562184 U JP17562184 U JP 17562184U JP S6191157 U JPS6191157 U JP S6191157U
- Authority
- JP
- Japan
- Prior art keywords
- heater
- internal combustion
- combustion engine
- detection means
- sensor element
- 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
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
Description
第１図は本考案の一実施例のヒータ制御回路図
、第２図はヒータ電流とセンサ素子部温度の関係
を示す図、第３図は酸素センサの構造を示す図、
第４図は従来のヒータ制御回路図を示す。
２…ジルコニアチユーブ（センサ素子）、４…
セラミツクヒータ、１１…コントロールユニツト
、１２，１３…トランジスタ、１７，１８…抵抗
、２１…抵抗、２２…Ａ／Ｄ変換器。
FIG. 1 is a heater control circuit diagram of an embodiment of the present invention, FIG. 2 is a diagram showing the relationship between heater current and sensor element temperature, and FIG. 3 is a diagram showing the structure of an oxygen sensor.
FIG. 4 shows a conventional heater control circuit diagram. 2...zirconia tube (sensor element), 4...
Ceramic heater, 11... Control unit, 12, 13... Transistor, 17, 18... Resistor, 21... Resistor, 22... A/D converter.
Claims (1)
サ素子の近傍にセンサ素子加熱用ヒータを配設し
てなる内燃機関用酸素センサにおいて、前記ヒー
タに供給される電流量を検出するヒータ電流検出
手段と、該検出手段の検出電流値に基づいて前記
ヒータへの印加電圧を制御する制御手段とを設け
たことを特徴とする内燃機関用酸素センサ。 An oxygen sensor for an internal combustion engine in which a heater for heating a sensor element is disposed near a sensor element that is attached to an engine exhaust system and faces into the exhaust gas, comprising: heater current detection means for detecting the amount of current supplied to the heater; An oxygen sensor for an internal combustion engine, comprising: a control means for controlling a voltage applied to the heater based on a current value detected by the detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17562184U JPS6191157U (en) | 1984-11-21 | 1984-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17562184U JPS6191157U (en) | 1984-11-21 | 1984-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6191157U true JPS6191157U (en) | 1986-06-13 |
Family
ID=30733221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17562184U Pending JPS6191157U (en) | 1984-11-21 | 1984-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6191157U (en) |
-
1984
- 1984-11-21 JP JP17562184U patent/JPS6191157U/ja active Pending
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