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:
Nov. 08, 2005
Filed:
Feb. 05, 2002
Shinji Goto, Saitama, JP;
Takeshi Nakazawa, Saitama, JP;
Hiroaki Iguchi, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
To provide a vehicular two-wheel drive and four-wheel drive switching system the power consumption of which can be reduced. A vehicular two-wheel drive and four-wheel drive switching system is provided with a switching unit for transmitting power or disconnecting the transmission of power. The switching unit is provided with a driving shaft connected to the drive side, a driven shaft fitted to the driving shaft via an annular clearance gap. A plurality of connecting/disconnecting members are provided in a clearance between the driving shaft and the driven shaft for connecting or disconnecting the driving shaft and the driven shaft by being fitted or disconnected to/from respective opposite surfaces. A switching mechanism is provided for selectively positioning the connecting/disconnecting members in a position in which the driving shaft and the driven shaft are connected and in a position in which the driving shaft and driven shaft are disconnected. A control unit is provided for supplying driving current to the switching mechanism by repeating continuous supply and supply by duty cycle control.