| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce noise and vibration generated from a fuel system of high pressure without lowering of performance of an engine adapted to share injected fuel between an injector for cylinder injection and an injector for an intake passage injection. <P>SOLUTION: An engine ECU performs a program including: a step (S500) of calculating the port injection quantity Qp injected from the injector for intake passage injection by subtracting the cylinder injection quantity Qd from the required injection quantity Qall when the engine is in the idle state (YES in S100); a step (S600) of converting the port injection quantity Qp to the fuel injection period TAUp of the injector for intake passage injection; and a step (S800) of setting the port injection quantity Qp of the injector for intake passage injection and the cylinder injection quantity Qd of the injector for cylinder injection when the TAUp is larger than the minimum fuel injection period TAUminP of the injector for intake passage injection (YES in S700). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
