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:
Sep. 03, 2013
Filed:
Jan. 19, 2012
Timothy J. Morscheck, Portage, MI (US);
Kenneth E. Cooper, Toledo, OH (US);
James F. Ziech, Kalamazoo, MI (US);
Richard A. Nellums, Maumee, OH (US);
Steven J. Wesolowski, Waterville, OH (US);
Donald J. Remboski, Ann Arbor, MI (US);
Timothy J. Morscheck, Portage, MI (US);
Kenneth E. Cooper, Toledo, OH (US);
James F. Ziech, Kalamazoo, MI (US);
Richard A. Nellums, Maumee, OH (US);
Steven J. Wesolowski, Waterville, OH (US);
Donald J. Remboski, Ann Arbor, MI (US);
Dana Heavy Vehicle Systems Group, LLC, Maumee, OH (US);
Abstract
A method of shifting a power distribution unit for a vehicle from a first operating state to a second operating state is provided. The method includes the step of adjusting a rotational speed of a portion of a second axle assembly using a clutching device to impart energy to a lubricant within the second axle assembly. A controller in communication with a power source of the vehicle adjusts an operating condition of the power source to facilitate moving the clutching device. The power distribution unit includes an inter-axle differential capable being placed in a locked condition by the clutching device and of accommodating a rotational difference between a first output gear and a second output gear with the inter-axle differential.