Methodology to compensate the effect of humidity and altitude on HCCI combustion
A method for controlling combustion in a spark-ignition direct-injection internal combustion engine includes monitoring an engine operating mode and an ambient parameter, determining a deviation of the ambient parameter relative to a nominal ambient parameter, determining a nominal desired engine operation parameter based on engine speed and load, determining and adjusted desired engine operation parameter based on the nominal desired engine operation parameter and said deviation of the ambient parameter, and controlling the engine based on the engine operating mode and one of the nominal desired engine operation parameter and adjusted desired engine operation parameter.
GM Global Technology Operations LLC
F F F F F F F F F F Y F F F Y
F02D F02M F02D F02D F02D F02D F02D F02D F02M F02D Y02T F02D F02D F02D Y02T
additional additional additional additional inventional additional additional additional additional inventional additional inventional additional inventional additional
Paul M. Hanho Jun-Mo Chen-Fang Nicole
Najt Yun Kang Chang Wermuth