Junichiro Matsumoto

Apparatus and method for successively inactivating the cylinders of an electronically fuel-injected internal combustion engine in response to sensed engine load

Apparatus for controlling the number of enabled cylinders of an internal combustion engine upon deceleration

Apparatus for performing stepwise reactivation of cylinders of an internal combustion engine upon deceleration

Combined split engine and closed loop mixture control operation with enriched fuel during partial cylinder mode

Method and apparatus for disabling cylinders under light load conditions by comparison with variable reference

Fuel injection control system for an internal combustion engine of a vehicle

Electronic controlled fuel injection system

Split engine control system with exhaust gas recirculation

Stoichiometric and enrichment mixture control during different split engine modes

Combined split engine and feedback controlled engine operations