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:
May. 15, 2012
Filed:
Mar. 30, 2010
Daisuke Shiomi, Wako, JP;
Yukio Miyashita, Wako, JP;
Takaaki Fukusako, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
In an intake system comprising a first intake passage () having an upstream end communicating with an intake duct () and a downstream end communicating with an intake port of an engine cylinder, a first intake control valve () provided in the first intake passage, a second intake passage () having an upstream end communicating with the intake duct and a downstream end communicating with the intake port of the engine cylinder, a second intake control valve () provided in the second intake passage, an accelerator pedal(ACL) and a control unit () for controlling opening angles of the first and second intake control valves, the second intake control valve is opened when the first intake control valve has opened to an effective opening angle and an intake air flow rate is required to be further increased. The effective opening angle may be defined in a region where a change in the intake air flow rate of the first intake passage for a given change in the opening angle of the first intake control valve falls below a prescribed level. Thereby, as the accelerator pedal is depressed, a continuous increase in the intake air flow rate without involving a saturated region can be achieved.