Fuel injection control apparatus with injector response delay co

Details Fuel injection control apparatus with injector response delay co Fuel injection control apparatus with injector response delay co

1995-12-14

1997-02-25

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

F02D 4134

Patent

active

056051360

ABSTRACT:
A fuel injection control apparatus has a pressure regulator with a fuel return pipe installed within a fuel tank. The pressure regulator regulates pressure of fuel supplied to a fuel injector to be constant relative to an atmospheric pressure or an in-tank pressure. An electronic control unit drives the fuel injector by adding an invalid injection time to a required injection time determined based on engine operating conditions. The invalid injection time, which compensates for the response delays of the fuel injector, is determined by a battery voltage and a pressure difference between the fuel pressure and a selected pressure which is lower than the atmospheric pressure. The selected pressure may be a minimum pressure which an intake pressure of the engine becomes during fuel injection operation.

REFERENCES:
patent: 5078167 (1992-01-01), Brandt et al.

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