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:
Apr. 29, 2014
Filed:
Mar. 02, 2011
Toshinori Tsukamoto, Saitama-ken, JP;
Naoki Oie, Saitama-ken, JP;
Masaaki Nagashima, Saitama-ken, JP;
Toshinori Tsukamoto, Saitama-ken, JP;
Naoki Oie, Saitama-ken, JP;
Masaaki Nagashima, Saitama-ken, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
To provide an intake parameter-calculating device and intake parameter-calculating method for an internal combustion engine, which are capable of accurately calculating intake parameters in a case where an intake throttle valve is provided. The intake parameter-calculating deviceincludes an ECU. The ECUcalculates an error KTHERRCOR using an error model equation (8) (step), and calculates a correction coefficient KTHCOR as the reciprocal of the sum of the error KTHERRCOR and 1 (step). The ECUcalculates a passing air amount GAIRTH by correcting a basic passing air amount GAIRTHN calculated by an equation (11) using a correction coefficient KTHCOR (step). A model parameter A for the error model equation (8) is calculated using equations (14) to (18) by onboard identifying calculation with uniform weighting (stepsto).