Calculation of air charge amount in internal combustion engine

Details Calculation of air charge amount in internal combustion engine Calculation of air charge amount in internal combustion engine

2006-12-19

2006-12-19

Kwon, John T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S681000, C123S090150, C123S478000

Reexamination Certificate

active

07151994

ABSTRACT:
Calculation models (22, 24) for an in-cylinder air charge amount determine an estimated intake air pressure (Pe) based on an intake air flow rate (Ms), and then determine an air charge amount (Mc) from the estimated intake air pressure (Pe). A correction execution module (26) corrects, while a vehicle is traveling, the calculation model based on the relationship between the estimated intake air pressure (Pe) and a measured intake air pressure (Ps).

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