Title:
AIR-FUEL RATIO CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP3754007
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an air-fuel ratio control device for an internal combustion engine, allowing an air-fuel ratio to accurately follow a target air-fuel ratio by properly controlling the air-fuel ratio during accelerating/decelerating a vehicle driven by the internal combustion engine.
SOLUTION: A basic fuel amount TIM is corrected using an acceleration/deceleration correction coefficient KTH, an applicable correction coefficient KSTR and another correction coefficient KTOTAL, whereby a fuel amount TCYL to be supplied to the engine 1 is calculated. The applicable correction coefficient KSTR is calculated by an applicable control unit 31 and the acceleration/deceleration correction coefficient KTH is input to a controller 41 of the applicable control unit 31 and an identifier 42. The identifier 42 calculate a model parameter vector θ using a detected equivalent ratio KACT and the acceleration/deceleration correction coefficient KTH and the controller 41 calculates the applicable correction coefficient KSTR using the identified model parameter vector θ and the acceleration/deceleration correction coefficient KTH.
Inventors:
Yuji Yasui
Application Number:
JP2002194144A
Publication Date:
March 08, 2006
Filing Date:
July 03, 2002
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F02D41/14; F02D41/10; F02D41/12; G05B13/02; G05B13/04; G05B23/02; (IPC1-7): F02D41/14; F02D41/10; F02D41/12; G05B13/02; G05B13/04; G05B23/02
Domestic Patent References:
| JP2000234550A | ||||
| JP10009021A |
Attorney, Agent or Firm:
Koji Arai