| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for avoiding knocking with a method not repeating operation of ignition timing retard for knocking avoidance and timing advance following the same. SOLUTION: This device is provided with a knocking detection means 47 detecting whether actually knocking happens in a combustion chamber 5 or not, a knocking relating parameter estimation value calculation means 31 calculating a knocking relating parameter estimation value based on the knocking detection result, a knocking occurrence timing estimation means 31 estimating knocking occurrence timingθknk in the combustion chamber 5 based on the knocking relating parameter estimation value, a knocking limit ignition timing calculation means 31 calculating knocking limit ignition timing KNOCKcal based on knocking occurrence timingθknk, and sparking means 31, 14 performing spark ignition at the knocking limit ignition timing KNOCKcal. COPYRIGHT: (C)2006,JPO&NCIPI |
