公开(公告)号：US20250070585A1

公开(公告)日：2025-02-27

申请号：US18602319

申请日：2024-03-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jian Yao ,  Shuonan Xu ,  Yongjie Zhu ,  Su-Yang Shieh ,  Chunhao J. Lee ,  Chengwu Duan

IPC: H02J7/00 ,  B60L50/60 ,  B60L53/62 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/46 ,  H01M50/204 ,  H01M50/296 ,  H01M50/512

Abstract: An electrical system includes a high-voltage battery pack assembly having a first cell set with a first group of energy storage cells and a second cell set having a second group of energy storage cells connectable to the first cell set. The first cell set includes at least one first battery chemistry cell and the second cell set includes at least one second battery chemistry cell. At least one switch is in electrical communication with the first or second cell set. Battery connection terminals are in electrical communication with at least one of the first or second cell sets. A controller is configured to determine an operating strategy of the high-voltage battery pack assembly and place at least one of the first cell set or the second cell set in electrical communication with the battery connection terminals in response to the operating strategy of the high-voltage battery pack.

公开(公告)号：US20250050749A1

公开(公告)日：2025-02-13

申请号：US18448498

申请日：2023-08-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shuonan Xu ,  Jun-mo Kang

IPC: B60L50/15 ,  B60L50/60 ,  B60L58/12 ,  B60W10/08

Abstract: A method for cycle life management of a mixed chemistry battery pack configured for electrically powering a traction motor of a vehicle. The method may include determining a driving load request made for requesting the mixed chemistry battery pack to provide a requested amount of electrical power to the traction motor for purposes of driving the vehicle and disconnecting the driving load request into a battery request suitable for providing the requested amount of electrical power from the mixed chemistry battery pack while managing a cycle life of the mixed chemistry battery pack independently of the driving load request.

公开(公告)号：US20240413422A1

公开(公告)日：2024-12-12

申请号：US18330704

申请日：2023-06-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jun-mo Kang ,  Shuonan Xu ,  Hanho Yun

IPC: H01M10/615 ,  B60L58/12 ,  B60L58/27 ,  H01M10/625 ,  H01M10/63

Abstract: A vehicle having a mixed chemistry battery having first and second battery modules, a temperature sensor, a battery heating system configured to selectively heat the first battery module and/or the second battery module, and a controller. The controller configured to monitor the temperature of the first battery module, activate the heating system based on a determination that the temperature is below a minimum threshold value, monitor a first state-of-charge (SoC) of the first battery module and the second battery module, calculate a minimum set-point temperature for the first battery module based on the first SoC, the second SoC, and a maximum current load of the first battery module, and instruct the battery heating system to provide a portion of a total available heating power of the battery heating system to the first battery module and a remainder of the total available heating power to the second battery module.

公开(公告)号：US20250023365A1

公开(公告)日：2025-01-16

申请号：US18352316

申请日：2023-07-14

Applicant: GM Global Technology Operations LLC

Inventor： Shuonan Xu ,  Yue-Yun Wang ,  Lei Hao ,  Jun-mo Kang ,  Su-Yang Shieh ,  Mohamed Kamel

IPC: H02J7/00 ,  B60L53/10 ,  H02J7/34

Abstract: Simultaneous parallel charging of a first and second electrical energy storage devices coupled to a charge source is carried out by directly coupling the charge source to one of the first ESD and the second ESD and through a DC to DC converter to the other of the first ESD and the second ESD. The charge source provides a current that is allocated to the two ESDs by controlling the DC to DC converter. Priority of charging may be given to either ESD.

公开(公告)号：US20250050758A1

公开(公告)日：2025-02-13

申请号：US18446569

申请日：2023-08-09

Applicant: GM Global Technology Operations LLC

Inventor： Shuonan Xu ,  Hanho Yun ,  Lei Hao

IPC: B60L53/22 ,  B60L58/18 ,  H01M10/44 ,  H01M10/46 ,  H02M3/158

Abstract: A system for controlling power transfer includes a direct current (DC)-DC converter connected to a charging bus and selectively connected to a propulsion battery assembly and a supplemental battery assembly, the propulsion battery assembly having a first chemistry and configured to supply power to an electric motor of a vehicle, the supplemental battery assembly having a second chemistry that is different than the first chemistry. The system also includes a charger connected to the charging bus at a first side of the DC-DC converter, the charging bus connected to a load at a second side of the DC-DC converter, and a controller configured to control the DC-DC converter to perform a charging operation.

公开(公告)号：US20240429481A1

公开(公告)日：2024-12-26

申请号：US18339698

申请日：2023-06-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shuonan Xu ,  Lei Hao ,  Neeraj S. Shidore ,  Chandra S. Namuduri ,  Nicholas W. Pinto

IPC: H01M10/615 ,  H01M10/42 ,  H01M10/625 ,  H01M10/63 ,  H01M10/657

Abstract: A battery electric system includes an inverter connected to a battery pack and a direct current (DC) voltage bus, first and second electrical switches, and a battery controller. The first switch is connected between the inverter and battery pack, and opens during an alternating current (AC) self-heating mode of the battery pack. This mode includes generating an AC waveform through the battery pack via the inverter at a controlled amplitude. The second switch, which is connected to the inverter and the first switch, closes during the self-heating mode. The controller, in response to calibrated entry criteria, opens the first switch, closes the second switch, and controls ON/OFF conducting states of the power switches to self-heat the battery pack using the AC waveform. The entry criteria includes required charging of the battery pack while a temperature of the battery pack is less than a calibrated temperature limit.

公开(公告)号：US20250038526A1

公开(公告)日：2025-01-30

申请号：US18359401

申请日：2023-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei Hao ,  Shuonan Xu

IPC: H02J1/08 ,  B60L53/20 ,  H02M3/155

Abstract: Techniques are provided for activating a plurality of power features of a vehicle. In one embodiment, the techniques involve controlling a plurality of switches of a multi-function converter unit configuration to activate at least one of the plurality of power features of the vehicle, wherein the multi-function converter unit configuration includes a multi-function converter unit, at least one charge port, and a load.

公开(公告)号：US20250033527A1

公开(公告)日：2025-01-30

申请号：US18358398

申请日：2023-07-25

Applicant: GM Global Technology Operations LLC

Inventor： Shuonan Xu ,  Jun-mo Kang ,  Madhusudan Raghavan

IPC: B60L58/24 ,  B60L50/64 ,  B60L58/18 ,  H01M10/42 ,  H01M10/613 ,  H01M10/625 ,  H01M10/63 ,  H01M10/6561 ,  H01M10/658

Abstract: A method for operating a vehicle includes drawing operational power from a first set of battery cells and providing heating/cooling to the first set of battery cells and not to a second set of battery cells to maintain the first set of battery cells within an operational temperature window in a first mode of operation. The method switches to a second mode of operation in response to a power assist request, and draws operational power from the first set of battery cells and a second set of battery cells and provides heating/cooling to maintain the first set of battery cells and the second set of battery cells within the operational temperature window during the second mode of operation.

公开(公告)号：US20240291061A1

公开(公告)日：2024-08-29

申请号：US18302455

申请日：2023-04-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jian Yao ,  Yue-Yun Wang ,  Zhenwen Hu ,  Chengwu Duan ,  Shuonan Xu

IPC: H01M10/615 ,  H01M10/625 ,  H01M10/6555

CPC classification number: H01M10/615 ,  H01M10/625 ,  H01M10/6555

Abstract: A mixed chemistry battery including a sensing cell having a first chemistry, a battery cell having a second chemistry that is different than the first chemistry. The mixed chemistry battery also includes a sensor configured to measure a temperature of the mixed chemistry battery and a heating system configured to heat the second battery cell. The mixed chemistry battery further includes a battery monitoring system configured to selectively connect the heating system to at least one of the first battery cell and the second battery cell based upon the temperature of the mixed chemistry battery.

公开(公告)号：US20240204284A1

公开(公告)日：2024-06-20

申请号：US18085050

申请日：2022-12-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shuonan Xu ,  Neeraj S. Shidore ,  Robert D. Schmidt ,  Steven Earl Muldoon ,  Chandra S. Namuduri ,  Robert D. Drexler ,  Antonio Duaine Ulisse

IPC: H01M10/615 ,  G01R31/389 ,  H01M10/48 ,  H01M10/63 ,  H01M10/657

CPC classification number: H01M10/615 ,  G01R31/389 ,  H01M10/486 ,  H01M10/63 ,  H01M10/657

Abstract: A device for thermal control of a battery system includes a heating control module configured to generate an alternating current (AC) heating current and heat the battery system to a desired temperature by applying the AC heating current to the battery system over a selected heating time duration. The heating control module is configured to monitor a rate of increase of a temperature of the battery system during the applying, during the heating time duration, perform a periodic impedance measurement, the periodic impedance measurement including application of a measurement signal having a selected frequency range to the battery system for a measurement period, a length of the measurement period select to minimize a difference between a desired rate of increase and the monitored rate of increase, and adjust the AC heating current during the applying based on the temperature and the impedance measurement.