公开(公告)号：US20240059182A1

公开(公告)日：2024-02-22

申请号：US17986382

申请日：2022-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dave G. RICH ,  Aaron B. BLOOM ,  Wing-Fai HA ,  Dewen KONG ,  Jingyuan LIU

IPC: B60L58/14 ,  B60L58/15 ,  B60L58/16 ,  B60L58/24 ,  B60L58/18

CPC classification number: B60L58/14 ,  B60L58/15 ,  B60L58/16 ,  B60L58/24 ,  B60L58/18

Abstract: A battery system for a vehicle includes: a first positive terminal, a second positive terminal, and a negative terminal; switches; at least two battery modules each including at least three strings of battery cells that are configured to, at different times be: connected in series and to the first positive terminal via first ones of the switches; connected in parallel and to the second positive terminal via second ones of the switches; and disconnected from both of the first and second positive terminals; and a switch control module configured to, based on a derated state of the vehicle, adjust at least one of an upper limit for charging of the battery strings and a lower limit for discharging of the battery strings.