Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1998-03-04
1999-10-26
Kwon, John
Internal-combustion engines
Charge forming device
Fuel injection system
123305, F02M 5100
Patent
active
059709553
ABSTRACT:
A fuel injection control method and system in a multi-cylinder direct injection type internal combustion engine. A first sensor detects whether the engine is in a start-up condition and, upon detection, generates a start-up signal. A second sensor generates an engine operating condition indicative signal. A third sensor detects an operative condition of the fuel pump. A basic period of injection based on the second sensor signal is calculated. A decrease in injection amount based on the fuel pump operative conditions sensed by the third sensor is determined and the basic period of injection is modified to compensate for the decrease in the injection amount. The injection valves are controlled according to the modified injection period.
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Kwon John
Nissan Motor Co,. Ltd.
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