Air-fuel mixture control for automobile engine having fuel injection system

Patent · Tue May 01 04:00:00 EDT 1984

OSTI ID:6470456

Kobayashi, K; Iida, K; Kamite, J; Tanaka, H

An air-fuel ratio control system for an automobile engine of a type having a fuel injection system wherein at least two of parameters including the engine speed, the opening of a throttle valve and the negative pressure developed inside a fuel intake passage are utilized to detect the rate of flow of incoming air to be mixed with an injected mist of fuel to form a combustible mixture. The amount of fuel to be injected into the intake passage depends on the detected rate of flow of the incoming air. A composition sensor for detecting the concentration of an exhaust gas component is also provided for controlling an EGR control valve for controlling the recirculation of a portion of exhaust gases from an exhaust passage into the intake passage.

• Assignee: Toyo Kogyo Co., Ltd. (Japan)
• Patent Number(s): US 4445489
• OSTI ID: 6470456
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
AIR FLOW
CONTROL EQUIPMENT
DESIGN
ENGINES
EQUIPMENT
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW RATE
FLOW REGULATORS
FLOWMETERS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GAS FLOW
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERS
POLLUTION CONTROL EQUIPMENT
SPARK IGNITION ENGINES
VALVES
VELOCITY