| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a supercharge-assist method for an internal combustion engine capable of reducing a consumption amount of gas in an accumulated gas container for use in supercharge-assist, by detecting an intake pressure and by starting the control of supercharge-assist using the compressed gas for the supercharge, immediately before reaching a smoke limit, in the internal combustion engine using the gas stored in the accumulated gas container for the supercharge-assist, and to provide the internal combustion engine. <P>SOLUTION: In a transient state of this internal combustion engine 1, 1A, the supercharge-assist for shutting off EGR gas Ge and intake A by an operation of an EGR valve 21 and a flow path switching operation of a flow path switching device 30 to supply gas C in an accumulated gas container to an intake passage 12 is performed, only when a pressure Pt in the accumulated gas container 27 is equal to or more than a preset lower limit pressure PL and when a supply target fuel amount Qt calculated on the basis of a measured engine rotation speed Ne and accelerator opening Ac exceeds a non-supercharge maximum fuel amount (zero boost) Q0 in which the supercharge for the same engine rotation speed Ne is not performed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
