Electronically controlled fuel injection apparatus for internal combustion engine

Patent · Tue Apr 15 04:00:00 EST 1986

OSTI ID:5688753

Wantanabe, H

An electronically controlled fuel injection apparatus is described for an internal combustion engine which controls the amount of fuel supplied to the internal combustion engine by controlling an injector. The apparatus consists of: engine speed detecting means for detecting a speed of the engine; intake air flow rate amount detecting means for detecting the intake air flow rate supplied to the engine; idling condition sensing means for sensing that a throttle valve is operated to be the minimum aperture; basic injection pulse generating means for determining a basic fuel injection time according to the engine speed and the intake air flow rate so as to generate a pulse for opening the injector while the pulse is generated, the pulse having a width corresponding to the basic fuel injection time; and correction means for enlarging the width of the pulse for opening the injector when the engine decelerates at a rate more than a predetermined rate under idling condition, the correction means enlarging the width of the pulse by a width in proportion to the engine speed deceleration rate.

• Assignee: Toyota Jidosha Kubushiki Kaisha
• Patent Number(s): US 4583174
• OSTI ID: 5688753
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ACCELERATION
AIR FLOW
APERTURES
CONTROL EQUIPMENT
CONTROL SYSTEMS
ELECTRONIC EQUIPMENT
ENGINES
EQUIPMENT
FLOW RATE
FLOW REGULATORS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUNCTION GENERATORS
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OPENINGS
PULSE GENERATORS
SPEED REGULATORS
TIME MEASUREMENT
VALVES
VELOCITY