Apparatus for learning control of air-fuel ratio of air-fuel mixture in electronically controlled fuel injection type internal combustion engine

Patent · Tue Apr 07 00:00:00 EDT 1987

OSTI ID:6635818

Tomisawa, N; Furuhashi, S; Otani, S

This patent describes an apparatus for learning control of the air-fuel ratio of an air-fuel mixture in an electronically controlled fuel injection type internal combustion engine. The apparatus comprises engine-driving state detecting means including at least first detecting means for detecting a flow quantity Q of intake air in the engine, second detecting means for detecting a rotation speed N of the engine and third detecting means for detecting an actual air-fuel ratio lambda of the air-fuel mixture sucked in the engine by detecting a concentration of an exhaust component. It also comprises: a fuel injection means for injecting and supplying a fuel to the engine in an on-off manner in response to a driving pulse signal.

• Assignee: Japan Electronic Control Systems Co., Ltd.
• Patent Number(s): US 4655188
• OSTI ID: 6635818
• Resource Relation: Patent File Date: Filed date 23 Jan 1985
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
INTERNAL COMBUSTION ENGINES
COMPUTERIZED CONTROL SYSTEMS
FUEL-AIR RATIO
AIR FLOW
FUEL INJECTION SYSTEMS
LEARNING
MEMORY DEVICES
MIXTURES
CONTROL SYSTEMS
DISPERSIONS
ENGINES
FLUID FLOW
FUEL SYSTEMS
GAS FLOW
HEAT ENGINES
330100* - Internal Combustion Engines