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:
Jan. 01, 2013
Filed:
Jan. 28, 2009
Yasutaka Usukura, Saitama, JP;
Hiroshi Noda, Saitama, JP;
Kenichi Machida, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A flow controlling method for an auxiliary intake flow passage for use in a power unit which includes a starter clutch which is automatically engaged and disengaged in response to the engine speed. An intake air control valve (IACV) carries out changeover from water temperature dependent control (open loop control of adjusting the flow rate of the auxiliary intake flow passage in response to the warming up state of an engine) to target engine speed feedback control when the actual engine speed NE [rpm] drops to a clutch disengagement engine speed NEout (engine speed at which the centrifugal clutch is disengaged) (S: Yes) and the opening θ[degree] of the throttle valve becomes smaller than a predetermined threshold value (throttle valve opening threshold value TH(S: Yes).