Fuel injection control system for internal combustion engine

Patent · Tue Nov 17 04:00:00 EST 1987

OSTI ID:5684624

Wataya, S

A fuel injector control apparatus is described comprising: an air-flow sensor for detecting a quantity of suction air supplied to an internal combustion engine; an injector for injecting fuel into the engine; a controller for controlling a quantity of the injected fuel responsive to an output of the air-flow sensor; a throttle valve for regulating the quantity of the suction air; throttle valve opening detecting means for detecting the opening of the throttle valve; rotational frequency detecting means for detecting the rotational frequency of the engine; means for measuring the temperature of the suction air; first correcting means responsive to outputs of the throttle valve opening detecting means and the rotational frequency detecting means for correcting the output of the air-flow sensor in a return blow region of the engine; second correcting means responsive to outputs of the first correcting means and of the temperature measuring means for further correcting the output of the air-flow sensor; means responsive to an output of the second correcting means for determining the quantity of the injected fuel.

• Assignee: Mitsubishi Denki Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4706631
• OSTI ID: 5684624
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
ANGULAR VELOCITY
CONTROL EQUIPMENT
CONTROL SYSTEMS
ENGINES
EQUIPMENT
FLOW REGULATORS
FLOWMETERS
FLUID FLOW
FREQUENCY MEASUREMENT
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERS
OPERATION
VALVES
VELOCITY