Particulate filter regeneration method for a motor vehicle

Details Particulate filter regeneration method for a motor vehicle Particulate filter regeneration method for a motor vehicle

2006-11-28

2006-11-28

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Having means analyzing composition of exhaust gas

C060S274000, C060S295000, C060S297000, C060S311000

Reexamination Certificate

active

07140176

ABSTRACT:
A method and device for regeneration of a particulate filter situated on an exhaust line of an engine. The method determines a soot burden on the filter based on knowledge of a differential pressure ΔP at ends of the filter and triggers combustion of the soot when the burden reaches a predetermined level. A pressure Pdownstream downstream from the filter is modeled without use of a pressure sensor and Pupstream is determined without use of a pressure sensor using the relationship Pupstream=ΔP+Pdownstream. The burden is determined by the relationship ΔP=f (Qvol, mass of soot), with Qvol=K×(Qair+ρfuel×Qcarb)×N×Tupstream/Pupstream, where K is a constant, Qair denotes a mass flow of air, ρfuel denotes a density of the fuel, Qcarb denotes a volumetric quantity of fuel, N denotes an rpm of the engine, and Tupstream denotes an absolute temperature measured upstream from the filter.

REFERENCES:
patent: 5024054 (1991-06-01), Barris et al.
patent: 5052178 (1991-10-01), Clerc et al.
patent: 5511413 (1996-04-01), Pfister et al.
patent: 6405528 (2002-06-01), Christen et al.
patent: 199 33 988 (2000-01-01), None
patent: 2 808 559 (2001-11-01), None
patent: 08 284643 (1996-10-01), None

Affiliated with

Also associated with

Rating

Particulate filter regeneration method for a motor vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Particulate filter regeneration method for a motor vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particulate filter regeneration method for a motor vehicle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3690115