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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
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.