System for assisting in the regeneration of motor vehicle...

Details System for assisting in the regeneration of motor vehicle... System for assisting in the regeneration of motor vehicle...

2004-10-12

2009-10-20

Nguyen, Tu M (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S286000, C060S297000, C060S303000

Reexamination Certificate

active

07603851

ABSTRACT:
This system in which the engine implements regeneration strategies at a first level and at a second level depending on different engine operation control parameters in order to obtain different temperature levels in the exhaust line involves acquiring the exothermic temperature level of the catalyst, comparing it with a threshold value so that in the event of the threshold being exceeded while the second level strategy is being applied, the system is controlled to regulate one of the engine operation control parameters in order to reduce the exothermic temperature level, and if this temperature level does not drop back below the threshold value at the end of a first time period, the system is controlled to switch over to the first level strategy, and if this exothermic temperature level still does not drop below the threshold value at the end of a second time period, to stop the regeneration strategy.

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International Search Report dated Feb. 17, 2005.

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