The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 12, 2019
Filed:
Jul. 17, 2012
Yuji Yasui, Saitama, JP;
Hideki Matsunaga, Saitama, JP;
Hans Hardam, Tokyo, JP;
Toshiharu Takahashi, Tokyo, JP;
Masatoshi Yamada, Tokyo, JP;
Hiroshi Uike, Tokyo, JP;
Yuji Yasui, Saitama, JP;
Hideki Matsunaga, Saitama, JP;
Hans Hardam, Tokyo, JP;
Toshiharu Takahashi, Tokyo, JP;
Masatoshi Yamada, Tokyo, JP;
Hiroshi Uike, Tokyo, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L., Luxembourg, LU;
Abstract
The objective of the present invention is to provide a control device for an engine that enables precise control of the equivalence ratio. The system from the fuel injection amount to the output from a LAF sensor is modeled as an injection amount-sensor output model by means of a model equation containing model parameters and a lag coefficient. The system from the equivalence ratio to the LAF sensor output is modeled as a port equivalence ratio-sensor output model by means of a model equation containing the lag coefficient. The control device is equipped with: a feedback-use identifier that successively identifies values for the model parameters; a LAF lag compensation-use identifier that successively identifies values for the lag coefficient; and a stoichiometric driving mode controller that determines the value of a fuel injection amount.