Title:
AIR-FUEL RATIO CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2001115880
Kind Code:
A
Abstract:
To high-precisely control an air-fuel ratio as the influence of disturbance.
Each time a reference signal from a crank angle sensor is outputted the given number CO of times, a feedback control amount of an air-fuel ratio through control of a sliding mode is calculated and by using the feedback control amount, feedback control of an air-fuel ratio is carried out. This constitution suppresses excessive correction during a useless time since a feedback control amount is calculated and updated at a period being a useless time, in which exhaust gas discharged from a combustion chamber reaches an air-fuel ratio sensor.
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Inventors:
OKUMA SHIGEO
TAKAHASHI KOJI
TAKAHASHI KOJI
Application Number:
JP29690799A
Publication Date:
April 24, 2001
Filing Date:
October 19, 1999
Export Citation:
Assignee:
UNISIA JECS CORP
International Classes:
F02D41/34; F02D41/14; F02D41/36; F02D45/00; G05B13/00; G05B21/02; (IPC1-7): F02D41/14; F02D45/00; G05B21/02
Attorney, Agent or Firm:
Fumio Sasashima
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