| 摘要 |
PROBLEM TO BE SOLVED: To establish a knock control method capable of using for a spark ignition type internal combustion engine having the form of using residual gas with a high compression ratio, high super charging and a high temperature, to provide a fuel injection control device capable of practicing the knock control method, and to suppress fuel consumption while suppressing the generation of knocking. SOLUTION: In the fuel injection control device of the spark ignition type internal combustion engine injecting and supplying two kinds of fuels, the combination of the two kinds of fuels is in a form that the ignition lag times of respective fuels with respect to temperature are reversed at a predetermined boundary temperature, a cylinder temperature calculating means finding the cylinder temperature of the spark ignition type internal combustion engine by detection or estimation is provided, and a control means controls the injection ratio between two kinds of fuels based on a predetermined temperature corresponding to the boundary temperature at which the ignition lag times of two fuels are reversed and a cylinder temperature found by the cylinder temperature calculating means. COPYRIGHT: (C)2011,JPO&INPIT |
