Electronic fuel injection system for internal combustion engine

Patent · Tue May 05 04:00:00 EDT 1987

OSTI ID:6374688

Nagano, M

A fuel injection apparatus is described in an internal combustion engine, comprising: air flow rate detection means for detecting a quantity of air sucked by the engine; engine revolutional speed detection means for detecting a revolutional speed of the engine; load state determining means for determining whether the engine is in a highly loaded state or not; control means for calculating a basic pulse width of a value opening pulse for the injection valve means on the basis of respective output signals of the air flow detection means and the engine speed detection means; and a first correction factor map storing a first set of predetermined correction factors corresponding to various values of the revolutional speed of the engine and various values of the valve opening pulse width for the injection valve means to be calculated by the control means.

• Assignee: Hitachi, Ltd., Tokyo
• Patent Number(s): US 4662340
• OSTI ID: 6374688
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
COMPUTER CALCULATIONS
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
ENGINES
EQUIPMENT
FLOW RATE
FLOW REGULATORS
FLOWMETERS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERS
PULSES
VALVES