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. 20, 2022
Filed:
Apr. 09, 2021
Dana Heavy Vehicle Systems Group, Llc, Maumee, OH (US);
Jeffrey M. David, Cedar Park, TX (US);
Mark A. Davis, Opelika, AL (US);
Darren J. Ziskovsky, Bowling Green, OH (US);
Aaron D. Gries, Perrysburg, OH (US);
Jordan M. Houser, Sylvania, OH (US);
Dana Heavy Vehicle Systems Group, LLC, Maumee, OH (US);
Abstract
Methods and systems for an electric drive assembly are provided herein. In one example, an electric drive system is provided that includes two multi-motor drive units with associated planetary gear reductions that have asymmetric gear ratios. The planetary gear reduction in each drive unit includes a ring gear and a sun gear that are rotationally coupled to a pair of motors and a carrier rotationally coupled to an output gear that interfaces with a gear reduction of an axle assembly.