Alleman Hall McCoy Russell & Tuttle LLP
Air-fuel ratio control system and air-fuel ratio control method of internal combustion engine
An air-fuel ratio control system of an internal combustion engine comprises a fuel amount determiner for determining a fuel command value. The fuel amount determiner has a feedback control mode in which the fuel amount determiner determines a running state reference coefficient corresponding to a running state detected by a running state detector based on a first correspondence stored in the memory, determines a running state compensation coefficient corresponding to the running state detected by the running state detector based on a second correspondence stored in the memory, determines a feedback compensation coefficient used to cause an air-fuel ratio to reach a value closer to a theoretical air-fuel ratio based on an output of the air-fuel ratio sensor, and determines the fuel command value using a formula including the determined running state reference coefficient, the determined running state compensation coefficient, and the determined feedback compensation coefficient.
Kawasaki Jukogyo Kabushiki Kaisha
F F F F Y F F
F01N F02D F02D F02D Y02T F02D F02D
inventional inventional inventional additional additional inventional inventional
Tsuyoshi Kozo Yoshinobu Shinichi Takashi Daisuke
Takeuchi Suzuki Mori Kuratani Abe Yanase