Fuel-injection control system for an internal combustion engine
A fuel-injection control system for an internal combustion engine is described in which a basic pulse width, being calculated from the amount of intake air sucked into an internal combustion engine and the number of engine revolutions, is generated in synchronization with engine revolution, and a series of special injection pulses are generated independently of the generation timing of the basic injection pulse width for revision of engine acceleration. The fuel injection control system comprises: an arithmetic operation means for calculating an engine load from the amount of intake air sucked into the engine and the number of engine revolutions; a judging means for judging whether or not a parameter representative of the engine load is less than a predetermined reference value; a first pulse-generating means adapted to generate a first special injection pulse in response to the amount of the intake air when the judging means judges that the parameter is less than the predetermined reference value; a second pulse-generating means adapted to revise the engine acceleration outside a pulsation range; and a revision-prohibiting means for prohibiting the revision of engine acceleration in the pulsation range of the intake air during a second predetermined period of time exceeding the first predetermined period starting from the generation of the first special injection pulse.
- Assignee:
- Mazda Motor Corp., and Mitsubishi Denki Kabushiki Kaisha
- Patent Number(s):
- US 4706634
- OSTI ID:
- 5684574
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electronically controlled fuel injection apparatus for internal combustion engine
Setting device of basic fuel injection amount for an internal combustion engine
Related Subjects
330100* -- Internal Combustion Engines
AIR FLOW
CONTROL SYSTEMS
DESIGN
ELECTRONIC EQUIPMENT
ENGINES
EQUIPMENT
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUNCTION GENERATORS
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OPERATION
PULSE GENERATORS
SYNCHRONIZATION
TIMING PROPERTIES