Internal-combustion engines – Spark ignition timing control – Electronic control
Reexamination Certificate
2006-04-04
2006-04-04
Huynh, Hai (Department: 3747)
Internal-combustion engines
Spark ignition timing control
Electronic control
C123S406480, C123S568110, C123S698000, C701S103000, C701S108000
Reexamination Certificate
active
07021285
ABSTRACT:
A combustion variation value is detected, and a function that uses the detected combustion variation value is added to CVAR(i−1) to obtain CVAR(i); and using the resulting value, an exhaust gas recirculation amount and an ignition timing are obtained. A combustion variation is detected, and if the detected combustion variation value is equal to or greater than a predetermined value, the value of flag is set to be 1, and the exhaust gas recirculation amount and the ignition timing are reset to previous values. If the detected combustion variation value is less than the predetermined value, the value of the flag is set to be zero, and a current combustion variation manipulation correcting amount CVAR(i) is updated. If the value of flag is 1, the process is immediately terminated.
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Inoue Hitoshi
Maeda Osamu
Huynh Hai
Mitsubishi Denki & Kabushiki Kaisha
Sughrue & Mion, PLLC
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