Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1986-07-15
1988-03-08
Cox, Ronald B.
Internal-combustion engines
Charge forming device
Fuel injection system
123490, F02B 300
Patent
active
047293624
ABSTRACT:
An apparatus for controlling an internal combustion engine having a plurality of cylinders and fuel injectors provided for the respective cylinders. The apparatus includes a digital computer for calculating a value for fuel delivery requirement based upon various engine operating conditions. The digital computer provides a control signal in response to a demand for engine acceleration. A control circuit is coupled between the digital computer and the fuel injectors for generating synchronous fuel injection pulses having a pulse width corresponding to the calculated value to drive the fuel injectors in synchronism with engine rotation. The control circuit generates an asynchronous fuel injection signal to drive the fuel injectors so as to provide an additional supply of fuel to the engine in response to the control signal. The control circuit includes retards the timing of generation of the synchronous fuel injection pulses successive from the asynchronous fuel injection pulse whenever the control signal occurs in a predetermined range within an interval between two synchronous fuel injection pulses.
REFERENCES:
patent: 4508085 (1985-04-01), Yamato
patent: 4527529 (1985-07-01), Suzuki
patent: 4573443 (1986-03-01), Watanabe
Cox Ronald B.
Nissan Motor Company Limited
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