A method for controlling an internal combustion engine having a plurality
of cylinders using electronic valve actuation, including operating a
first portion of the cylinders in a homogeneous charge compression
ignition (HCCI) mode, operating a second portion of the cylinders in a
non-HCCI mode, and adjusting the valve timing of the second portion of
cylinders to dynamically load level the engine in response to a transient
torque demand. A system for controlling a multiple cylinder internal
combustion engine, including a first group of cylinders to operate in an
HCCI mode, a second group of cylinders to operate in a non-HCCI mode, and
an engine controller operably coupled to the first and second groups of
cylinders, said controller to adjust the valve timing of the second group
of cylinders to dynamically load level the engine in response to a
transient torque demand.