| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device etc. of an internal combustion engine, which smoothly switches between a spark ignition combustion mode and a compression ignition combustion mode.SOLUTION: A control device of an internal combustion engine can switch between a spark ignition combustion mode of combusting a mixture formed in a combustion chamber by spark ignition and a compression ignition combustion mode of combusting the mixture by compression ignition. The control device, when switching from the spark ignition combustion mode to the compression ignition combustion mode, increases an internal EGR quantity of internal EGR in internal EGR control of leaving a part of burned gas, which is generated by combustion, as the internal EGR in the combustion chamber, advances ignition timing, and reduces a fuel injection quantity so that an oxygen concentration contained in the internal EGR, which is used to form the mixture, becomes high. |
