PURPOSE: To permit fuel injection amount control which is not influenced by the secular change by correcting the output of a position detector of a fuel control member on the basis of the deviation between the output of an O2 concentration detector for detecting O2 concentration in exhaust gas and O2 concentration estimated in operation state.
CONSTITUTION: In operation a controller 1 obtains an aimed injection amount on the bais of each output of a revolution-number sensor 5 and an acceleration sensor 6, and an aimed rack position is obtained from said aimed injection amount and the number of revolutions of a pump. Then an actuator 3 for driving a control rack is controlled so that the actual rack position detected by a rack position sensor 4 is accorded with the aimed rack position. The O2 concentration is estimated from the above-described aimed injection amount and the output of the acceleration sensor 6, and the output of the rack position sensor 4 is corrected in the direction for correcting the deviation between the above- described estimation value and the output of a lean sensor 2 for detecting the O2 concentration, and thus the characteristic error of the position sensor 4 is corrected.
| JP6447434 | Fuel injection control device |
| JPS62153549 | INJECTION TIMING CONTROL OF DIESEL ENGINE |
ITOU OSAMU
YASUURA NOBUSHI
SUZUKI MASATOSHI
