Method and apparatus for monitoring number density of aerosol particles
US-12146809-B2 · Nov 19, 2024 · US
Control apparatus for internal combustion engine
US8943809B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8943809-B2 |
| Application number | US-201113392272-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2011 |
| Priority date | Mar 15, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
Official abstract text for this publication.
A control apparatus for an internal combustion engine detects an amount of particulate matter contained in an exhaust gas in an exhaust passage, according to an electrical property across electrodes of a particulate matter sensor disposed in the exhaust passage of the internal combustion engine. The term “electrical property” here refers to a property that changes with the amount of particulate matter deposited, for example, a current value of when a predetermined voltage is applied. After the internal combustion engine is started and detection of the amount of the particulate matter is completed, an element section of the particulate matter sensor is set to a predetermined temperature range. The particulate matter deposited on the element section is thereby burned and removed. The control apparatus maintains the element section in the predetermined temperature range after burning and removing the particulate matter until the internal combustion engine stops.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control apparatus for an internal combustion engine, comprising: means for detecting an amount of particulate matter contained in an exhaust gas in an exhaust passage of the internal combustion engine according to an electrical property across electrodes of a particulate matter sensor disposed in the exhaust passage of the internal combustion engine; means for burning and removing the particulate matter deposited on an element section of the partic…
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Cross-Sectional Technologies · mapped topic
- F02D41/1466Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8943809B2 cover?
- A control apparatus for an internal combustion engine detects an amount of particulate matter contained in an exhaust gas in an exhaust passage, according to an electrical property across electrodes of a particulate matter sensor disposed in the exhaust passage of the internal combustion engine. The term “electrical property” here refers to a property that changes with the amount of particulate…
- Who is the assignee on this patent?
- Aoki Keiichiro, Nishijima Hiroki, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F02D41/1466. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 03 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).