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Method and device for regenerating a particle filter
US9080486B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9080486-B2 |
| Application number | US-201113183936-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 15, 2011 |
| Priority date | Aug 6, 2010 |
| Publication date | Jul 14, 2015 |
| Grant date | Jul 14, 2015 |
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Abstract
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A method and device for monitoring and controlling the regeneration of a particle filter in an exhaust gas duct of an internal combustion engine which has a three-way catalytic converter downstream of the particle filter, wherein the particle filter is regenerated by oxidative burning of the particles during a regeneration phase, wherein oxygen consumption is balanced, directly or indirectly, during the regeneration phase via the temporal variation of a first signal of a first lambda probe, which is arranged upstream of the particle filter, in comparison to the temporal variation of a second signal of a second lambda probe, which is arranged downstream of the particle filter. A lambda value of λ=1 is set downstream of the three-way catalytic converter during the regeneration of the particle filter by means of lambda control and the second lambda probe which is arranged downstream of the three-way catalytic converter.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for monitoring and controlling regeneration of a particle filter in an exhaust gas duct of an internal combustion engine which has a three-way catalytic converter downstream of the particle filter, the method comprising: regenerating the particle filter by oxidative burning of particles during a regeneration phase, balancing oxygen consumption, directly or indirectly, during the regeneration phase via temporal variation of a first signal of a f…
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Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
- F01N3/101Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US9080486B2 cover?
- A method and device for monitoring and controlling the regeneration of a particle filter in an exhaust gas duct of an internal combustion engine which has a three-way catalytic converter downstream of the particle filter, wherein the particle filter is regenerated by oxidative burning of the particles during a regeneration phase, wherein oxygen consumption is balanced, directly or indirectly, d…
- Who is the assignee on this patent?
- Frank Michael, Winkler Klaus, Kufferath Andreas, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F01N3/101. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jul 14 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).