公开(公告)号：US20230150378A1

公开(公告)日：2023-05-18

申请号：US17550004

申请日：2021-12-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei HAO ,  Chandra S. NAMUDURI ,  Chengwu DUAN ,  Suresh GOPALAKRISHNAN ,  Neeraj S. SHIDORE ,  Venkata Prasad ATLURI

IPC: B60L53/20 ,  H02M3/158 ,  H02J7/00 ,  B60L53/16

CPC classification number: B60L53/20 ,  H02M3/158 ,  H02J7/0042 ,  H02J7/0013 ,  B60L53/16 ,  H02J2207/20 ,  B60L2210/10 ,  H02J2207/40

Abstract: A power control system for a vehicle includes a charge port and a contactor connected to the charge port and including a first plurality of switches. An energy storage system includes a second plurality of switches and one or more battery packs. A bi-directional DC-DC converter is connected between the energy storage system and a plurality of vehicle loads. A controller is configured to control states of the first and second plurality of switches to configure in a plurality of modes including a range improvement mode, a first charging mode to perform charging at a first voltage level, a second charging mode to perform charging at a second voltage level, a battery preconditioning mode; and an accessory load support mode.