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:
Jun. 21, 2022
Filed:
Oct. 30, 2020
GM Global Technology Operations Llc, Detroit, MI (US);
Venkatesh Gopalakrishnan, Rochester Hills, MI (US);
Chandra S. Namuduri, Troy, MI (US);
Suresh Gopalakrishnan, Troy, MI (US);
Dongxu Li, Troy, MI (US);
Chunhao J. Lee, Troy, MI (US);
Neeraj S. Shidore, Novi, MI (US);
Norman K. Bucknor, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An energy storage system (ESS) for a vehicle propulsion system includes a first battery electrically coupled to a first voltage bus, a second battery electrically coupled to a second voltage bus, and a bidirectional DC/DC power converter electrically coupled to the voltage buses. A starter for cranking an engine is electrically coupled to the first voltage bus. A controller executes computer code stored in memory. The computer code is configured to operate the converter in a boost mode to transfer power from the second voltage bus to the first voltage bus, in response to the controller determining that: a power capability of the first battery is below a power demand on the first voltage bus; a state of charge of the first battery is below a state of charge threshold; or a temperature of the first battery is below a temperature threshold.