Method and device for operating an internal combustion engine
US-2024287927-A1 · Aug 29, 2024 · US
Device and method for diagnosing an exhaust gas sensor
US9109527B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109527-B2 |
| Application number | US-201013503507-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 14, 2010 |
| Priority date | Oct 22, 2009 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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A device for diagnosing an exhaust gas sensor, in particular a linear oxygen probe, for an internal combustion engine. A diagnostic unit is configured to control a first and a second current source in a coordinated manner in order to generate a first and a second current. Each of the currents has a predefined polarity sign, and is designed to determine the first and/or second and/or third voltages applied at a first and/or second and/or third terminal when first and second currents flow and put the amounts of the voltages in relation to the coordinated currents such that line interruptions and/or short circuits can be detected at the first and/or second and/or third terminal.
First claim
Opening claim text (preview).
The invention claimed is: 1. A device for diagnosing an exhaust gas sensor, comprising: a first connection for connecting to a first electrode of a first cell of the exhaust gas sensor; a second connection for connecting to a second electrode of a second cell of the exhaust gas sensor, a third connection for connecting to a node of a second electrode of the first cell and a first electrode of the second cell of the exhaust gas sensor, a first power source which is coupled to…
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Mechanical Engineering · mapped topic
Physics · mapped topic
Mechanical Engineering · mapped topic
Physics · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9109527B2 cover?
- A device for diagnosing an exhaust gas sensor, in particular a linear oxygen probe, for an internal combustion engine. A diagnostic unit is configured to control a first and a second current source in a coordinated manner in order to generate a first and a second current. Each of the currents has a predefined polarity sign, and is designed to determine the first and/or second and/or third volta…
- Who is the assignee on this patent?
- Barnikow Stefan, Friedhof Frank, Wagner Ekkehart-Peter, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification F02D41/1454. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).