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U.S. Department of Energy
Office of Scientific and Technical Information

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