Fuel supply control system for internal combustion engines, having a function of leaning mixture in an engine low load region

Patent · Tue May 01 00:00:00 EDT 1984

OSTI ID:6470752

Hasegawa, S

A fuel supply control system for use with an internal combustion engine in which a fuel quantity adjusting means which controls the quantity of fuel being supplied to the engine is electrically controlled in response to operating condition of the engine to obtain a desired amount of fuel being supplied to the engine. The system includes means responsive to the outputs of an engine speed sensor and an intake pipe absolute pressure sensor to actuate the above fuel quantity adjusting means to lean a mixture being supplied to the engine when the actual engine speed is higher than a predetermined engine rpm and the actual intake pressure absolute pressure is lower than a predetermined absolute pressure. Preferably, the mixture leaning means may be also responsive to the output of an engine temperature sensor to cause leaning of the mixture when the actual engine temperature is higher than a predetermined engine temperature, simultaneously with fulfillment of the engine speed and absolute pressure requirements.

• Assignee: Honda Motor Co., Ltd. (Japan)
• Patent Number(s): US 4445483
• OSTI ID: 6470752
• Resource Relation: Patent Priority Date: Priority date 20 Feb 1981, Japan; Other Information: PAT-APPL-348648
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
COMPUTERIZED CONTROL SYSTEMS
DESIGN
FUEL INJECTION SYSTEMS
INTERNAL COMBUSTION ENGINES
ANGULAR VELOCITY
CONTROL EQUIPMENT
DYNAMIC LOADS
EFFICIENCY
FUEL ECONOMY
FUEL-AIR RATIO
PRESSURE MEASUREMENT
CONTROL SYSTEMS
ENGINES
EQUIPMENT
FUEL SYSTEMS
HEAT ENGINES
VELOCITY
330100* - Internal Combustion Engines