Title:
FUEL INJECTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP3634056
Kind Code:
B2
Abstract:
PURPOSE: To ensure stability of control by a method wherein first and second feedback correction factors are calculated by using first and second control rules having difference responsiveness and when an engine valve is switched to a second operating state, the second feedback correction factor is selected to correct a feed fuel amount.
CONSTITUTION: When a feedback correction factor is computed by a control unit 34 based on the output of an LAF sensor 54 to calculate a feed fuel amount, a first feedback correction factor is calculated by using a first gradualness type control rule so that an exhaust air-fuel ratio coincides with a target air-fuel ratio. Further, a second feedback correction factor is calculated by using a second control rule, inferior to a first control rule in responsiveness, preferably a PID control rule so that the exhaust air-fuel ratio coincides with a target value. When the valve timing of an engine valve is switched to the high speed side by a variable timing mechanism 300, the second feedback correction factor is selected to correct a feed fuel amount.
Inventors:
Hidetaka Maki
Shusuke Akasaki
Yusuke Hasegawa
Yoichi Nishimura
Shusuke Akasaki
Yusuke Hasegawa
Yoichi Nishimura
Application Number:
JP6370996A
Publication Date:
March 30, 2005
Filing Date:
February 26, 1996
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F02D41/14; F02D13/02; F02D43/00; G05B11/36; (IPC1-7): F02D41/14; F02D13/02; F02D43/00; G05B11/36
Domestic Patent References:
| JP374547A | ||||
| JP61252847A |
Attorney, Agent or Firm:
Yutaka Yoshida
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