Integrated smo gas sensor module
US-2016018356-A1 · Jan 21, 2016 · US
Gas sensor control device
US2016209352A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016209352-A1 |
| Application number | US-201415023446-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 25, 2014 |
| Priority date | Sep 27, 2013 |
| Publication date | Jul 21, 2016 |
| Grant date | — |
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Abstract
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An O 2 sensor includes a sensor element using a solid electrolyte layer and a pair of electrodes placed at a position to interpose the solid electrolyte layer, detects an exhaust gas from an internal combustion engine as an object of a detection, and outputs an electromotive force signal depending on an air-fuel ratio of the exhaust gas. The sensor element is connected with a constant current circuit supplying a constant current that is prescribed. A microcomputer calculates an element resistance, determines whether the air-fuel ratio is at least rich, lean, or stoichiometric, on the basis of a comparison between an electromotive force output of the electrogenic cell and a prescribed threshold. Further, the microcomputer controls the constant current supplied by the constant current circuit on the basis of the element resistance.
First claim
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1 . A gas sensor control device for a gas sensor which has an electrogenic cell using a solid electrolyte body and a pair of electrodes placed at a position to interpose the solid electrolyte body, and detects an exhaust gas from an internal combustion engine as an object of a detection and outputs an electromotive force signal depending on an air-fuel ratio of the exhaust gas, the gas sensor control device comprising: a constant current supplying section supplying a constant current that is pr…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- G01N27/4065Primary
Physics · mapped topic
Physics · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US2016209352A1 cover?
- An O 2 sensor includes a sensor element using a solid electrolyte layer and a pair of electrodes placed at a position to interpose the solid electrolyte layer, detects an exhaust gas from an internal combustion engine as an object of a detection, and outputs an electromotive force signal depending on an air-fuel ratio of the exhaust gas. The sensor element is connected with a constant current …
- Who is the assignee on this patent?
- Denso Corp
- What technology area does this patent fall under?
- Primary CPC classification G01N27/4065. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Jul 21 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).