|A method for the operation of homogeneous charge compression ignition
engines (HCCI) using gasoline or similar single-stage ignition fuels.
Partial fuel stratification (PFS), intake pressure boosting and
controlled BDC-intake temperatures, typically in the range of 95.degree.
C. to about 125.degree. C., are used to reduce combustion pressure rise
rates (PRR), and therefore, the knocking propensity of homogeneous charge
compression ignition engines operating on gasoline or similar fuels.