Engine controlling system

Patent · Mon Mar 07 23:00:00 EST 1988

OSTI ID:5138559

Morita, K; Miyake, J

This patent describes a system for controlling an internal combustion engine having an intake manifold, a throttle valve disposed in the intake manifold for movement between an idle position and a fully opened position, a fuel injection system including at least one electrically actuated fuel injector operative to inject a fuel into an air flow through the intake manifold to form an air-fuel mixture to be sucked into the engine, and an ignition system including a spark plug for igniting charges of the air-fuel mixture in an associated engine cylinder. The controlling system includes an electrical control unit electrically connected to the injector, a throttle position sensor operative to detect positions of the throttle valve and emit to the control unit an electrical throttle-position signal representing a detected throttle valve position, an engine speed sensor operative to detect an engine speed and emit to the control unit an electrical engine-speed signal representing a detected engine speed, a temperature sensor operative to detect an engine temperature and emit a temperature signal to the control unit, signal to the control unit, and a mass flow type air flow sensor for detecting a mass flow of air sucked through the intake manifold into the engine.

• Assignee: Hitachi Ltd., Tokyo
• Patent Number(s): US 4729358
• OSTI ID: 5138559
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
AIR FLOW
CONTROL EQUIPMENT
CONTROL SYSTEMS
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
FLOWMETERS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GAS FLOW
HEAT ENGINES
IGNITION
IGNITION SYSTEMS
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
METERS
OPERATION
SPARK IGNITION ENGINES
TIMING PROPERTIES
VALVES