Electronic fuel injection control system for internal combustion engines having exhaust gas recirculation control devices

Patent · Tue Jul 24 04:00:00 EDT 1984

OSTI ID:6282840

Hasegawa, Sh

An electronic fuel injection control system for an internal combustion engine, includes means for correcting the valve opening of the exhaust gas recirculation valve by the use of a correction coefficient so as to maintain the recirculating quantity of exhaust gases at a constant ratio with respect to the total intake air quantity, irrespective of changes in the ambient atmospheric pressure, and means for correcting the injection period for fuel being supplied to the engine as a function of atmospheric absolute pressure and intake pipe absolute pressure, whereby the air/fuel ratio of the mixture is maintained at an optimum value against changes in the atmospheric pressure, even when exhaust gas recirculation is effected.

• Assignee: Honda Motor Co., Ltd. (Japan)
• Patent Number(s): US 4461263
• OSTI ID: 6282840
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ELECTRONIC EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
FLUID FLOW
FLUIDS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
POLLUTION CONTROL EQUIPMENT
SPARK IGNITION ENGINES
VALVES
WASTES