Method and device for adapting the efficiency of a cooler in...

Details Method and device for adapting the efficiency of a cooler in... Method and device for adapting the efficiency of a cooler in...

2008-12-19

2011-10-04

Kirkland, III, Freddie (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Exhaust system

C073S114680

Reexamination Certificate

active

08028569

ABSTRACT:
A method for providing a specification about an efficiency of a cooler for recirculated exhaust gas in an internal combustion engine includes: measuring a temperature of the recirculated exhaust gas cooled by the cooler; and ascertaining the specification about the efficiency of the cooler as a function of the measured temperature of the cooled recirculated exhaust gas. With the aid of the specification about the efficiency of the cooler it is possible to determine a failure of the cooler or to calculate a temperature of the recirculated exhaust gas in order implement an engine control system of the internal combustion engine on the basis of a reliable temperature specification that is not influenced by lag effects.

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