Internal-combustion engines – Spark ignition timing control – Electronic control
Reexamination Certificate
2008-02-01
2010-10-26
Moulis, Thomas N (Department: 3747)
Internal-combustion engines
Spark ignition timing control
Electronic control
C123S352000, C123S406630, C701S102000, C701S105000, C701S114000, C701S115000
Reexamination Certificate
active
07819106
ABSTRACT:
In an apparatus for controlling an engine, an irregular-region start detector detects that a predetermined-directed level change in an input signal is synchronized with a start of appearance of an irregular region thereof. An irregular-region end detector detects that a predetermined-directed level change in the input signal is synchronized with an end of the irregular region thereof. A fixing unit fixes a reference interval to a predetermined value when it is detected that the predetermined-directed level change in the input signal is synchronized with the start of appearance of the irregular region thereof. A resetting unit resets the reference interval from the predetermined-value to one of the measured intervals when it is detected that the predetermined-directed level change in the input signal is synchronized with the end of the irregular region thereof.
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Denso Corporation
Moulis Thomas N
Nixon & Vanderhye P.C.
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