Air-fuel ratio control system for an automotive engine
Patent
·
OSTI ID:6424758
This patent describes an air-fuel ratio control system for an automotive engine having at least one fuel injector operating by an injection pulse and a throttle valve. The system comprises: a mass airflow sensor for sensing mass of intake air and for producing a mass airflow signal; an engine speed sensor for producing an engine speed signal proportional to the speed of the engine; a throttle angle position sensor for producing a throttle angle signal representing the angle of the throttle valve; and a first table storing first coefficients for correcting deviation of air-fuel ratio which is caused by characteristics of the injector.
- Assignee:
- Fuji Jukogo Kabushiki Kaisha, Tokyo
- Patent Number(s):
- US 4664085
- OSTI ID:
- 6424758
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330603* -- Vehicle Design Factors-- Engine System
AIR FLOW
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ENGINES
FLOWMETERS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GAS FLOW
INCIDENCE ANGLE
MEASURING INSTRUMENTS
METERS
OXYGEN METERS
PULSES
READOUT SYSTEMS
SIGNALS
VEHICLES
330603* -- Vehicle Design Factors-- Engine System
AIR FLOW
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ENGINES
FLOWMETERS
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
GAS FLOW
INCIDENCE ANGLE
MEASURING INSTRUMENTS
METERS
OXYGEN METERS
PULSES
READOUT SYSTEMS
SIGNALS
VEHICLES