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:
May. 30, 2023
Filed:
Oct. 18, 2021
American Axle & Manufacturing, Inc., Detroit, MI (US);
Jeffrey J. Ronning, Grosse Pointe Farms, MI (US);
John C. Morgante, Sterling Heights, MI (US);
American Axle & Manufacturing, Inc., Detroit, MI (US);
Abstract
A drive system with one or more electrically driven axles, a transmission subsystem, which is drivingly coupled to a drive gearbox of each of the electrically driven axles, first and second motors, which are each drivingly coupled to the transmission subsystem and have different motor characteristics, and a controller. The drive gearbox of each axle transmits rotary power to an associated set of vehicle wheels. The controller controls the first and second motors responsive to at least a torque request. Over a significant portion of the operating range of the drive system, the controller is configured to vary the respective magnitudes of the rotary power provided by the first and second motors to satisfy the torque request in a manner that maximizes a combined efficiency of the motors in a predetermined manner.