| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device for an on-vehicle internal combustion engine capable of suppressing accumulation of deposits on a cylinder injection valve while improving quietness within a cabin. <P>SOLUTION: The internal combustion engine 10 is provided with a port injection valve 14 for injecting fuel supplied from a feed pump 20 to inside of an intake port 13 and with the cylinder injection valve 12 for increasing the pressure of the fuel supplied from the feed pump 20 by a high pressure pump 30 and directly injecting the fuel to inside of a cylinder 11. An electronic control device 100 sets a fuel injection form by each of the injection valves 12, 14 based on an engine operating condition, forcedly changes the fuel injection form so as to prohibit cylinder injection and execute only port injection when it is determined that a noise level within the cabin is lower than a predetermined level, and cancels the change to set the injection form including cylinder injection when the tip temperature of the cylinder injection valve 12 exceeds predetermined temperature even if it is determined that the noise level is lower than the predetermined level. <P>COPYRIGHT: (C)2009,JPO&INPIT |
