Control device for internal combustion engine

Details Control device for internal combustion engine Control device for internal combustion engine

2006-08-29

2006-08-29

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C073S118040, C073S204180, C123S361000

Reexamination Certificate

active

07099767

ABSTRACT:
An intake passage upstream of a throttle valve is divided into a plurality of intake divided-flow conduits, and air flow meters are arranged in the respective intake divided-flow conduits. The throttle opening is obtained, and a throttle valve passing-through air amount, which is an amount of air passing through the throttle valve, is calculated on the basis of the throttle opening. Each air flow meter-detecting intake air amount, which is an intake air amount to be detected by the air flow meter, assuming that air flows through each intake divided-flow conduit by a part of the throttle valve passing-through air amount, the part being determined by a divided-flow ratio of the corresponding intake divided-flow conduit, is estimated, and a total value of the estimated air flow meter-detecting intake air amounts is then estimated. The engine is controlled on the basis of the total air flow meter-detecting intake air amount.

REFERENCES:
patent: 4705001 (1987-11-01), Danno et al.
patent: 5301126 (1994-04-01), Nishimura et al.
patent: 6644104 (2003-11-01), Muto et al.
patent: A-2000-320391 (2000-11-01), None
patent: A-2002-097994 (2002-04-01), None

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