FUEL INJECTION CONTROLLER

• Main Authors: KATO KEIICHI, YASUURA NOBUSHI
• Format: Patent
• Language: English
• Published: 12.02.1991
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

PURPOSE:To control fuel injection always correctly by renewing the control gain of a fuel adjusting member according to the difference between the result of the calculation of a standard model and the operation quantity of the fuel adjusting member, when the operation quantity of the fuel adjusting member varies largely. CONSTITUTION:An injection quantity calculation part 1 calculates the fundamental injection quantity and aimed injection quantity and outputs an aimed position signal Pr. A servocontroller 2 outputs an electric current instruction value Ir into a driving part 3 so that the actual position signal P of a fuel adjusting member which is detected by a rack position sensor 6 coincides with the aimed position signal Pr. Further, the driving part 3 allows the electric current supplied into a linear solenoid 5 of the governor 4 of an injection pump to accord with the electric current instruction value Ir. A gain controller 8 renews the control gain of the servocontroller 2 according to the output signal of a gain calculation condition judging part 9 on the basis of the actual position signal P, output signal Pm of a standard model 7, and the output error signal (e) of the actual position signal P.