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:
Jan. 16, 2024
Filed:
May. 06, 2021
GM Global Technology Operations Llc, Detroit, MI (US);
Alireza Fatemi, Canton, MI (US);
Thomas W. Nehl, Shelby Township, MI (US);
Chandra S. Namuduri, Troy, MI (US);
Lei Hao, Troy, MI (US);
Norman K. Bucknor, Troy, MI (US);
Rashmi Prasad, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An electric propulsion system includes a rotary electric machine having an output member, a rechargeable energy storage system ('RESS') connected to the electric machine, a user interface device, and a controller. The RESS includes multiple battery modules and a switching circuit, the latter being configured, in response to electronic switching control signals, to connect the battery modules in a parallel-connected configuration or a series-connected configuration, as a selected battery configuration. The user interface device receives an operator-requested drive mode request as an electrical signal indicative of a desired drive mode of the electric propulsion system. The controller, which is programmed with mode-specific electrical loss information associated with the desired drive mode, establishes the selected battery configuration in response to the drive mode request, and presents a drive mode recommendation via the user interface device when the loss information associated with the desired drive mode exceeds a calibrated loss threshold.