A spark ignition type internal combustion engine of the present invention is provided with a variable closing timing mechanism which can change a closing timing of an intake valve after suction bottom dead center wherein the amount of intake air fed into a...

An engine control apparatus (16) having a unit (161) for calculating the mean value of the angular acceleration with respect to each cylinder; a unit (162) for calculating the variance of the angular acceleration with respect to each cylinder; a unit (163)...

In a control device 13 for an internal combustion engine includes an intake valve, a variable valve mechanism 9 capable of controlling a closing timing and an operating angle of an intake valve 7 continuously and variably, a detection unit B60 for detectin...

Control apparatus for an internal combustion engine including: a second knock detection unit for detecting occurrence of a second knock due to an effective compression ratio when ignition timing is on a retard side of a predetermined value in the case wher...

A target amount of lift is determined such that a decrease in fuel efficiency can be controlled. Current environmental conditions (PA, TA) are detected for environmental conditions, surrounding an internal combustion engine, including at least an intake te...

The invention relates to an apparatus and a method for supplying fuel in an internal combustion engine, wherein a control signal for changing a degree of vaporization of the fuel passing the air intake valve (6) in accordance with the opening degree of the...

In an internal combustion engine provided with a variable valve mechanism that varies at least a valve operating characteristic (valve lift amount, valve operating angle and the like) of an intake valve, a target volume flow ratio equivalent to a target to...