System for assisting in the regeneration of depollution...

Details System for assisting in the regeneration of depollution... System for assisting in the regeneration of depollution...

2004-10-18

2009-10-20

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S280000, C060S286000, C060S297000, C060S301000, C060S311000

Reexamination Certificate

active

07603850

ABSTRACT:
A system in which the depollution means (1) are associated with oxidation catalyst-forming means (2), and the engine (4) is associated with common manifold means (7) for feeding it with fuel, and adapted to implement a regeneration strategy in at least one operation of post-injecting fuel into the cylinders, is characterized in that is comprises: detector means (8) for detecting a regeneration request (req.RG); detector means (9) for detecting a state of the foot being raised on the vehicle accelerator; temperature acquisition means (11) for acquiring the temperature downstream from the catalyst-forming means (2); means (8) for determining a maximum quantity of fuel to be injected in the post-injection operations during the period of returning to idling following the foot being raised, and on the basis of said temperature; and means (7, 8) for immediately interrupting the post-injection operation as soon as the quantity of fuel injecting has reached the maximum quantity.

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