Fuel injection system for internal combustion engine

Details Fuel injection system for internal combustion engine Fuel injection system for internal combustion engine

1993-12-08

1995-02-21

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123490, 123480, F02M 5100

Patent

active

053906411

ABSTRACT:
A fuel injection control system for an internal combustion engine which can eliminate lean misfiring and rich misfiring at asynchronous injection and exhausting of non-combustioned HC. When the asynchronous injection is performed at engine cranking or at acceleration, a judgement is made as to whether the injected fuel will be divided by closure of an intake valve. When division is not detected, fuel injection is performed in normal manner. When division is detected, rate of the fuel division is computed. As a result of computation, fuel injection is performed when judgement is made that a predetermined amount of the injected fuel will be introduced into the cylinder. Furthermore, the amount of fuel not introduced into the cylinder is computed to reduce a corresponding amount from a fuel injection amount for the next cycle. On the other hand, when judgement is made that the predetermined amount of fuel will not be introduced into the cylinder, fuel injection does not take place.

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patent: 5033439 (1991-07-01), Eygret
patent: 5074271 (1991-12-01), Suzuki et al.
patent: 5099813 (1992-03-01), Kurosu et al.
patent: 5107431 (1992-04-01), Ohta et al.

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