Intake air volume controller of internal combustion engine

Details Intake air volume controller of internal combustion engine Intake air volume controller of internal combustion engine

2007-11-13

2007-11-13

Cronin, Stephen K. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S090150, C073S118040

Reexamination Certificate

active

10561047

ABSTRACT:
An intake air amount control system for an internal combustion engine, which controls respective amounts of intake air drawn into four cylinders #1to #4, independently of each other, by variable inter-intake cam phase mechanisms80, identifies intake air amount variation coefficients Φ#i, based on a model [equation (43)] defining a relationship between an estimated value Gth_est of a TH passing intake air amount and a plurality of simulation values Gcyl_OS#i, such that the estimated value Gth_est becomes equal to the TH passing intake air amount, calculates a target inter-intake cam phase θssi#i_cmd, on a cylinder-by-cylinder basis, according to the identified intake air amount variation coefficients Φ#i (step81), and calculates control input DUTY_ssi#2to #4to the variable inter-intake cam phase mechanisms80according to the target inter-intake cam phases θssi#i_cmd (step75).

REFERENCES:
patent: 6276316 (2001-08-01), Arai et al.
patent: 6691022 (2004-02-01), Takemura et al.
patent: 6741924 (2004-05-01), Iwasaki et al.
patent: 6827051 (2004-12-01), Kawasaki et al.
patent: 6848301 (2005-02-01), Kondo
patent: 02-005745 (1990-01-01), None
patent: 04-012104 (1992-01-01), None
patent: 1999/47800 (1999-09-01), None
patent: 2003-155938 (2003-05-01), None

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