Patent Number: 6,308,698

Title: Method and apparatus for controlling fuel injection in diesel engine

Abstract: An arrangement for controlling fuel injection in a diesel engine to preventgeneration of smoke even when an accelerator pedal is stamped duringidling. A basic amount of fuel injection Q.sub.base is determined from anengine revolution speed Ne and accelerator opening degree Ac. A maximumamount of fuel injection Q.sub.MAF is determined from the enginerevolution speed Ne and an intake air flow rate MAF. It is then determinedwhether a first condition of vehicle speed being zero and a secondcondition of accelerator opening degree being not zero both hold true. Themaximum amount of fuel injection Q.sub.MAF is corrected to a smaller valueQ.sub.lmt when both the first and second conditions are met. In this case,the basic amount of fuel injection Qbase is compared with the reducedmaximum amount of fuel injection Q.sub.lmt and the smaller one is selectedas a target amount of fuel injection Q.sub.fnl.

Inventors: Shioi; Kenzo (Fujisawa, JP), Iida; Keiichi (Fujisawa, JP), Nishikawa; Tomoo (Fujisawa, JP)

Assignee:

International Classification:

Expiration Date: 10/32013