公开(公告)号：US20230242008A1

公开(公告)日：2023-08-03

申请号：US17587632

申请日：2022-01-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark Daniel GOTTLIEB ,  Venkata Prasad ATLURI ,  Madhusudan RAGHAVAN ,  Chandra S. NAMUDURI ,  Suresh GOPALAKRISHNAN

IPC: B60L58/16 ,  B60L58/13 ,  H01M10/42

CPC classification number: B60L58/16 ,  B60L58/13 ,  H01M10/425 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2220/20

Abstract: A power control system for a battery system of a vehicle includes one or more supplemental protection devices that are connected to at least one of a first contactor, a second contactor, one of N fuses, and one of N vehicle loads. A battery management module is configured to measure and store a plurality of state of health parameters for the battery system and to selectively operate the one or more supplemental protection devices in a coverage gap between first and second coverage areas handled by the first contactor and the second contactor and the N fuses based on a calibration function and/or calibration parameters. A telematics system selectively sends the plurality of state of health parameters for the battery system to a remote server and to receive at least one of a new calibration function and new calibration parameters for the vehicle from the remote server.

公开(公告)号：US20220402395A1

公开(公告)日：2022-12-22

申请号：US17350696

申请日：2021-06-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Rashmi PRASAD ,  Chandra S. NAMUDURI ,  Suresh GOPALAKRISHNAN ,  Thomas W. NEHL ,  David J. BROOKS

IPC: B60L53/60 ,  B60L50/60

Abstract: A charging system includes a scalable power source for powering a motor of a vehicle and telematics and battery management modules. The scalable power source includes: N battery packs, where N is an integer greater than or equal to 3; and multiple switches connected to the N battery packs including N−1 switches for serially connecting the N battery packs between supply and return lines and a multiple of N switches for parallel connecting the N battery packs to the supply and return lines. The telematics module requests capability of a charging station and receives a response signal from a device indicating the capability of the charging station. The battery management module: based on the capability of the charging station, selects one of the available arrangements in which to connect the N battery packs, sets states of the multiple switches; and then charges the N battery packs based on the states.

公开(公告)号：US20210036643A1

公开(公告)日：2021-02-04

申请号：US16527846

申请日：2019-07-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yue-Yun WANG ,  Lei HAO ,  Alireza FATEMI ,  Thomas W. NEHL ,  Chandra S. NAMUDURI

IPC: H02P23/28 ,  H02J7/18

Abstract: A current command module is configured to, based on a direct current (DC) bus voltage for an electric motor of the vehicle, generate a d-axis current command for the electric motor and a q-axis current command for the electric motor. A voltage command module configured to generate voltage commands based on the d-axis current command and the q-axis current command. A battery switching control module is configured to: determine a voltage operating state of a battery based on the voltage commands; compare a battery parameter to at least one of a predetermined voltage parameter and a predetermined current parameter during a dwell time when a plurality of switches of the battery are open; and generate a switch control signal to transition at least one switch of the plurality of switches to cause the battery to operate in the voltage operating state based on the comparison.