Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1999-05-27
2000-10-03
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Fuel injection system
123299, 123457, 123478, 123480, 701104, F02D 4140
Patent
active
061258237
ABSTRACT:
A system and method for controlling fuel delivery from a fuel injector includes determining engine speed, determining a proposed pilot pulse width time based on engine speed, determining injection pressure, determining a proposed first quantity of fuel to be delivered by the fuel injector based on the proposed pilot pulse width time and injection pressure and determining a desired engine torque output. A desired total quantity of fuel to be delivered by the fuel injector is determined based on the desired engine torque output and engine speed. The proposed first quantity of fuel is compared with the desired total quantity of fuel. A desired first quantity of fuel to be delivered by the fuel injector is determined based on the desired engine torque output and engine speed if the proposed first quantity of fuel is greater than the desired total quantity of fuel. A desired pilot pulse width time is determined based on the desired first quantity of fuel and the injection pressure. A desired second quantity of fuel to be delivered by the fuel injector is determined by subtracting the proposed first quantity of fuel from the desired total quantity of fuel if the proposed first quantity of fuel is less than or equal to the desired first quantity of fuel. A main pulse width time is determined based on the desired second quantity of fuel and the injection pressure.
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Argenbright Tony M.
Detroit Diesel Corporation
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