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. 27, 2018
Filed:
Mar. 08, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
Margarita P. Thompson, Livonia, MI (US);
Frederick E. Pinkerton, Macomb Township, MI (US);
Michael P. Balogh, Novi, MI (US);
Gayatri Vyas Dadheech, Bloomfield Hills, MI (US);
Xiaoqing Zeng, Northville, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An electric motor is provided for use in an electromechanical transmission that utilizes automatic transmission fluid. The electric motor includes a stator and a rotor. The rotor includes a plurality of permanent magnets can include magnetic particles coated with hydrogen impermeable material. According to an alternative embodiment, the entire permanent magnet or the rotor itself can be coated with hydrogen impermeable material. According to a further alternative embodiment, the permanent magnet particles can be secured by a binder that includes a hydrogen storage compound that prevents hydrogen from affecting magnetic properties of the permanent magnet.