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:
Jul. 05, 2016
Filed:
Oct. 23, 2013
GM Global Technology Operations Llc, Detroit, MI (US);
The United States of America As Represented BY the Administrator of the National Aeronautics and Space Administration, Washington, DC (US);
Joshua M. Figuered, Houston, TX (US);
Eduardo Herrera, Houston, TX (US);
Thomas M. Waligora, Houston, TX (US);
William J. Bluethmann, Houston, TX (US);
Logan Christopher Farrell, West Lafayette, IN (US);
Chunhao J. Lee, Troy, MI (US);
Robert L. Vitale, Macomb Township, MI (US);
Ross Briant Winn, Houston, TX (US);
Raymond Edward Eggleston, IV, Canton, GA (US);
Raymond Guo, Seabrook, TX (US);
Steven J. Weber, Mount Clemens, MI (US);
Lucien Q. Junkin, Houston, TX (US);
James Jonathan Rogers, League City, TX (US);
GM Global Technology Operations LLC, Detroit, MI (US);
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration, Washington, DC (US);
Abstract
A wheel assembly for an electric vehicle includes a wheel rim that is concentrically disposed about a central axis. A propulsion-braking module is disposed within an interior region of the wheel rim. The propulsion-braking module rotatably supports the wheel rim for rotation about the central axis. The propulsion-braking module includes a liquid cooled electric motor having a rotor rotatable about the central axis, and a stator disposed radially inside the rotor relative to the central axis. A motor-wheel interface hub is fixedly attached to the wheel rim, and is directly attached to the rotor for rotation with the rotor. The motor-wheel interface hub directly transmits torque from the electric motor to the wheel rim at a 1:1 ratio. The propulsion-braking module includes a drum brake system having an electric motor that rotates a cam device, which actuates the brake shoes.