Engine fuel injection controller

Details Engine fuel injection controller Engine fuel injection controller

1994-08-10

1996-03-05

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123480, F02M 5100

Patent

active

054958393

ABSTRACT:
The delay of fuel flow in an intake passage of an engine is divided into two categories, namely a short-term delay having a relatively fast time constant and a long-term delay having a relatively slow time constant. The corrections for each delay are stored separately depending on the engine running conditions. A mechanism is provided for estimating the particle diameter of the fuel spray, and either the long-term delay correction is modified so that it increases or the short-term delay correction is modified so that it decreases as the particles of fuel spray become smaller. The basic fuel injection amount during transient engine running conditions is corrected by applying the delay flow correction thereby modified, and error in the air-fuel ratio during transient conditions due to atomization of fuel particles is prevented.

REFERENCES:
patent: 5115781 (1992-05-01), Kurita et al.
patent: 5270935 (1993-12-01), Dudek et al.
patent: 5337719 (1994-08-01), Togai
patent: 5394849 (1995-03-01), Tomisawa
patent: 5404856 (1995-04-01), Servati

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