| 摘要 |
PROBLEM TO BE SOLVED: To compartibly prevent the revolution drop and the shock in correcting the wall flow during the recovery from the fuel cut condition. SOLUTION: A change amountΔAVTPn of the cylinder air amount equivalent fuel injection amount AVTP is operated (S42) for each cylinder to estimate the wall flow condition. The water temperature correction factor GZTWC is operated based on the water temperature (S43). A judgment is made whether it is in the recovery condition or not, and when it is in the recovery condition, the recovery correction factor FCRATE is made small in value (S44-S46). The wall flow correction by cylinder CHOSn=ΔAVTPn.GZTWC.FCRATE is operated (S51) from the change amountΔAVTPn, the water temperature correction factor GZTWC, and the recovery correction factor FCRATE. The wall flow correction amount by cylinder CHOSn is added in calculating the final fuel injection amount by the cylinder. |
