Apparatus and method for injecting fuel into engine according to group injection system
This patent describes an apparatus for controlling fuel injection, for an internal combustion engine, comprising: (a) a rotational angle sensor for generating a pulse signal synchronized with the rotation of the engine; (b) a cylinder-determining sensor for producing a pulse signal indicative of a reference rotational angle of the engine; (c) an airflow meter for producing an output signal indicative of intake airflow sucked into the engine; (d) a flip-flop responsive to the pulse signal synchronized with engine rotation for frequency dividing the same; (e) a charge-discharge circuit arranged to start charging in response to an output signal from the flip-flop; (f) computing means responsive to the basic injection pulses for generating plural groups of final injection pulse signals to be respectively fed to respective groups of fuel injectors of the engine; (g) means for causing the flip-flop to produce the output signal which is shifted with respect to the output signal produce before receiving the control signal so that charging and discharging operation of the charge-discharge circuit is shifted accordingly.
- Assignee:
- Nippondenso Co., Ltd., Kariya
- Patent Number(s):
- US 4706196
- OSTI ID:
- 5897309
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330100* -- Internal Combustion Engines
AIR FLOW
ANGULAR VELOCITY
CONTROL SYSTEMS
DESIGN
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ENGINES
EQUIPMENT
FLOWMETERS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUNCTION GENERATORS
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERS
MONITORS
PULSE GENERATORS
VELOCITY