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Method and apparatus for controlling urea injection amount of vehicle
US9133752B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9133752-B2 |
| Application number | US-201314088945-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 25, 2013 |
| Priority date | Dec 31, 2012 |
| Publication date | Sep 15, 2015 |
| Grant date | Sep 15, 2015 |
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- Title
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Abstract
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An apparatus and method for controlling a urea injection amount of a vehicle provides precision improvement of urea injection by determining a urea injection amount according to a collection amount of soot that is collected at an SCR integral diesel particulate filter and an accumulation amount of ash. The method includes: detecting a collection amount of soot that is collected at the SCR integral diesel particulate filter and calculating an effective volume of the SCR integral diesel particulate filter according to enlargement of an accumulation amount of ash; calculating an NH3 target storage amount by reflecting the soot collection amount and an effective volume decrement according to ash accumulation; and providing urea injection by determining an NH3 storage control amount and determining a urea necessary injection amount according to the NH3 target storage amount.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of controlling a urea injection amount of a vehicle in which an SCR integral diesel particulate filter is mounted, the method comprising: detecting, by a controller, a collection amount of soot collected at the SCR integral diesel particulate filter and calculating an effective volume of the SCR integral diesel particulate filter according to enlargement of an accumulation amount of ash; calculating, by the controller, an NH 3 target storage amou…
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Classifications
- F01N9/00Primary
Mechanical Engineering · mapped topic
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 US9133752B2 cover?
- An apparatus and method for controlling a urea injection amount of a vehicle provides precision improvement of urea injection by determining a urea injection amount according to a collection amount of soot that is collected at an SCR integral diesel particulate filter and an accumulation amount of ash. The method includes: detecting a collection amount of soot that is collected at the SCR integ…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Motors Corp
- What technology area does this patent fall under?
- Primary CPC classification F01N9/00. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Sep 15 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).