MODIFYING DEVICE OF CORRECTIVE CONTROL FUNCTIONING TRANSIENTLY IN CONTROL OF INTERNAL-COMBUSTION ENGINE

摘要

PURPOSE:To achieve the optimal control level for individual internal-combustion engine by executing modification on the basis of plural results obtained through comparison between the desired levels and the actual levels of engine parameters while sharing the time axis. CONSTITUTION:When the variation DELTATA detected from the output of a throttle valve opening sensor 18 is high, MPU 25 will obtain the initial level of increment correction factor under acceleration with reference to a map of standby RAM 27 on the basis of said DELTATA thus to execute incremental correction under acceleration. Only when the difference of pressure peaks in cylinder to be detected through a pressure sensor 21 at the time points T1, T2 is lower than a desired level, the initial level stored in the standby RAM 27 is increased by predetermined amount with correspondence to current variation DELTATA. When repeating correction of the initial level for same variation DELTATA, the content of initial level is corrected in the direction to bring the actual differential pressure peak to a preset level.