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:
Dec. 23, 2008
Filed:
May. 28, 2004
Yuji Yasui, Saitama-ken, JP;
Akiyuki Yonekawa, Saitama-ken, JP;
Yuji Yasui, Saitama-ken, JP;
Akiyuki Yonekawa, Saitama-ken, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An intake air amount control system for an internal combustion engine, which is capable of ensuring high robustness and improving controllability in intake air amount control, to thereby improve drivability and reduce exhaust emissions. A control system of an internal combustion engine, which variably controls the amount of intake air drawn into cylinders as desired via a variable intake valve actuation assembly includes an ECU. The ECUcalculates a cylinder intake air amount Gcyl and a target intake air amount Gcyl_cmd based on a controlled object model, a vector θs of all model parameters of the controlled object model with an identification algorithm, calculates a target auxiliary intake cam phase θmsi_cmd based on the vector θs with a sliding mode control algorithm, and controls the variable intake valve actuation assembly according to the target auxiliary intake cam phase θmsi_cmd.