Internal-combustion engines – Combustion chamber means having fuel injection only – Combustible mixture stratification means
Reexamination Certificate
2011-07-12
2011-07-12
Wolfe, Jr., Willis R (Department: 3747)
Internal-combustion engines
Combustion chamber means having fuel injection only
Combustible mixture stratification means
C701S103000, C123S399000, C123S406450
Reexamination Certificate
active
07975668
ABSTRACT:
A control system for an engine comprises an air per cylinder (APC) generating module that generates measured and desired APC values. A combustion transition module selectively transitions the engine from spark ignition (SI) combustion to homogeneous charge compression ignition (HCCI) combustion and from HCCI combustion to SI combustion. A spark control module selectively retards spark during the transitions based on a ratio of the measured APC value and the desired APC value. Alternately, spark retard can be based on measured and desired engine torque representing values (ETRVs).
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Kafarnik Peter
Kang Jun-Mo
Ramappan Vijay
Rayl Allen B.
Wiles Matthew A.
GM Global Technology Operations LLC
Hoang Johnny H
Wolfe, Jr. Willis R
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