| 摘要 |
<p>PURPOSE:To operate an apparatus to be controlled at safe side by controllng said apparatus in accordance to the difference between a parameter detected from the operating condition of said apparatus and the target level under abnormal condition upon detection of abnormality through a detector for detecting the basic data for calculating the basic control level. CONSTITUTION:With respect to an apparatus 52 to be controlled to maintain the supercharge pressure at the target level in an internal-combustion engine associated with supercharger, means 40, 42 for detecting first, second parameter groups indicating the operating condition are provided. Furthermore, means 44 for operating the basic control level on the basis of the detected first parameter group and means 46 for detecting the abnormality of the detecting means 40 are provided. If the abnormality is not detected, correcting means 48 will correct the basic control level on the basis of the difference between second parameter group and the first target level while upon detection of abnormality, control means 50 will control said apparatus 52 on the basis of the difference between the second parameter group and the second target level further to the safe side than the first target level.</p> |
