| 摘要 |
PROBLEM TO BE SOLVED: To provide a device capable of reducing man hour and time of experiment required for creating a map of knocking limit ignition timing. SOLUTION: This device is provided with a base ignition timing establishing means 31 establishing base ignition timing corresponding to an operation condition, a pressure rise quantity estimation means 31 estimating pressure rise quantity due to knocking in a combustion chamber based on the operation condition, an ignition timing correction means 31 correcting the base ignition timing recognizing pressure rise quantity due to knocking in the combustion chamber as a knocking intensity equivalent value, and a spark ignition means 14 executing spark ignition at the corrected ignition timing. COPYRIGHT: (C)2005,JPO&NCIPI |
