Control strategy for operating a homogeneous-charge compression-ignition engine subsequent to a fuel cutoff event
A multi-cylinder spark-ignition direct-injection internal combustion engine is re-fired subsequent to a fuel cutoff event wherein fuel to all cylinders is cutoff. Re-firing the engine includes selectively firing individual cylinders during re-firing engine cycles exclusively at a predetermined fixed fuel mass until all cylinders have been fired at least once, whereafter subsequent firing of individual cylinders is not limited to the predetermined fixed fuel mass.
GM Global Technology Operations LLC
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Jun-Mo Hanho Chen-Fang
Kang Yun Chang