State determination device for internal combustion engine

Details State determination device for internal combustion engine State determination device for internal combustion engine

2006-12-12

2006-12-12

Kwon, John T. (Department: 3747)

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

Having a single combustible mixture inlet combined with...

C123S304000, C123S432000

Reexamination Certificate

active

07146963

ABSTRACT:
An engine ECU executes a program including the steps of: determining an airflow meter as abnormal when the number of times an injector is determined as abnormal (abnormality determination count C) is greater than a threshold value C(0) in all of a region where DI ratio r=100%, a region where DI ratio r=0%, and a region where 0%<DI ratio r<100%, and determining the airflow meter as normal when abnormality determination count C is smaller than the threshold value C(0) at least in any one region.

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