Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1994-10-03
1996-04-09
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Fuel injection system
F02M 5100
Patent
active
055051790
ABSTRACT:
An electronic engine controller for a diesel engine controls the mass of fuel injected by fuel injectors within the engine by receiving a Manifold Absolute Pressure (MAP) signal, from a MAP sensor positioned in an intake manifold of the engine, and generating a value indicative of the mass of fuel to be injected by the fuel injectors as a function of the MAP signal. The engine controller also generates an estimate of the absolute air pressure existing in the intake manifold by retrieving a value from a table containing a plurality of values indicative of an absolute air pressure for a given engine speed and fuel injection quantity. If the MAP sensor fails then the engine controller utilizes the estimate to generate the value indicative of the mass of fuel to be injected by the fuel injectors.
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Ford Motor Company
Lippa Allan J.
May Roger L.
Nelli Raymond A.
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