Method for monitoring the light-off performance of an...

Details Method for monitoring the light-off performance of an... Method for monitoring the light-off performance of an...

2006-03-07

2006-03-07

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Methods

C060S277000, C073S118040

Reexamination Certificate

active

07007457

ABSTRACT:
It is proposed that a quantity of heat input fed with the exhaust gas to the light-off area (8) during hot running up to a point in time be used as a criterion for successive conversion (light-off) in the downstream consecutive subvolumes (8a) of the light-off area (8) and that the functional capabilities of at least one of the downstream subvolumes (8a) heated consecutively be tested and evaluated individually at any moment of the light-off. The local variation of the catalytic converter efficiency can thus be monitored in the light-off area (8).

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Das Audi SULEV-Turbokonzept; B. Pfalzgraf et al.; Dresden, 9/10, pp. 53-79, Jun. 2002.

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