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公开(公告)号：US12036886B2
公开(公告)日：2024-07-16
申请号：US17469463
申请日：2021-09-08
Applicant: GM Global Technology Operations LLC
Inventor： Chandra S. Namuduri , Lei Hao , Samantha Gunter Miller , Chengwu Duan
CPC classification number: B60L53/62 , B60L53/20 , H02J7/007 , H02M3/158 , B60L53/16 , B60L2210/10 , H02J2207/20
Abstract: An electrical system can include a rechargeable energy storage system (RESS) and a direct current to direct current (DC-DC) converter. The DC-DC converter is connected to the RESS and configured to connect to a DC charging station. The DC-DC converter is configured to selectively connect the RESS to the DC charging station such that a charging current is selectively provided to the RESS during a recharging operation.
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公开(公告)号：US20230378789A1
公开(公告)日：2023-11-23
申请号：US17748337
申请日：2022-05-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Douglas S. Cesiel , Samantha Gunter Miller
CPC classification number: H02J7/0068 , B60L53/22 , H02J2207/20 , B60L2210/10 , B60L2210/40
Abstract: A split-phase bidirectional on-board charger (OBC) has separate charging and discharging modes, and includes a switchgear block connectable to an offboard charging station during the charging mode, and to an external alternating current (AC) load during the discharging mode. The OBC includes first and second DC-AC converters connected to the switchgear block and DC-DC converter connected to the first and second DC-AC converters and a DC bus. During the charging mode, the DC-AC converters output a DC link voltage to the DC-DC converter. The DC-DC converter outputs a DC charging voltage or current to the DC bus when the link voltage reaches a predetermined value. During the discharging mode, the DC-AC converters receive a DC discharging voltage or current from the DC-DC converter and together selectively output a split-phase AC voltage through the switchgear block to the AC electrical load.
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Patent Agency Ranking
公开(公告)号：US20230074825A1
公开(公告)日：2023-03-09
申请号：US17469463
申请日：2021-09-08
Applicant: GM Global Technology Operations LLC
Inventor： Chandra S. Namuduri , Lei Hao , Samantha Gunter Miller , Chengwu Duan
Abstract: An electrical system can include a rechargeable energy storage system (RESS) and a direct current to direct current (DC-DC) converter. The DC-DC converter is connected to the RESS and configured to connect to a DC charging station. The DC-DC converter is configured to selectively connect the RESS to the DC charging station such that a charging current is selectively provided to the RESS during a recharging operation.
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公开(公告)号：US11863004B2
公开(公告)日：2024-01-02
申请号：US17748337
申请日：2022-05-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Douglas S. Cesiel , Samantha Gunter Miller
CPC classification number: H02J7/0068 , B60L53/22 , B60L2210/10 , B60L2210/40 , H02J2207/20
Abstract: A split-phase bidirectional on-board charger (OBC) has separate charging and discharging modes, and includes a switchgear block connectable to an offboard charging station during the charging mode, and to an external alternating current (AC) load during the discharging mode. The OBC includes first and second DC-AC converters connected to the switchgear block and DC-DC converter connected to the first and second DC-AC converters and a DC bus. During the charging mode, the DC-AC converters output a DC link voltage to the DC-DC converter. The DC-DC converter outputs a DC charging voltage or current to the DC bus when the link voltage reaches a predetermined value. During the discharging mode, the DC-AC converters receive a DC discharging voltage or current from the DC-DC converter and together selectively output a split-phase AC voltage through the switchgear block to the AC electrical load.
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公开(公告)号：US12291121B2
公开(公告)日：2025-05-06
申请号：US17740514
申请日：2022-05-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Douglas S. Cesiel , Samantha Gunter Miller
Abstract: A system for charging an electric vehicle in a facility includes a current sensor adapted to obtain an input current signal for a power source in the facility. An electric vehicle supply equipment (EVSE) is configured to charge the electric vehicle through the power source based at least partially on a control pilot signal. A controller has a processor and tangible, non-transitory memory on which instructions are recorded for dynamically adjusting the control pilot signal based on the input current signal. The control pilot signal is set to a predefined maximum when the input current signal is less than a main circuit breaker rating of the facility. The controller is configured to reduce the control pilot signal from the predefined maximum when the input current signal is at or above the main circuit breaker rating.
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公开(公告)号：US20250079843A1
公开(公告)日：2025-03-06
申请号：US18461647
申请日：2023-09-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Minh-Khai Nguyen , Lei Hao , Samantha Gunter Miller
Abstract: A vehicle to load inverter module (V2LIM) based onboard charger (OBC). The V2LIM based OBC may include an alternating current to direct current (AC/DC) converter having an AC/DC input and an AC/DC output, a direct current to direct current (DC/DC) converter having a DC/DC input and a DC/DC output, and a direct current to alternating current (DC/AC) converter having a DC/AC input and a DC/AC output, and a controller configured for controlling the AC/DC converter, the DC/DC converter, and the DC/AC converter according to a split-phase load powering mode.
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公开(公告)号：US20240075826A1
公开(公告)日：2024-03-07
申请号：US17903561
申请日：2022-09-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Samantha Gunter Miller , Douglas S. Cesiel , Aniket P. Kothari
CPC classification number: B60L53/16 , B60L58/19 , B60L2210/30
Abstract: The concepts described herein provide a system and associated charging connector that is capable of offloading electric power stored in a rechargeable energy storage system (RESS) of an electrified vehicle to supply electric power to a stationary system, e.g., a residential dwelling or a business site, upon occurrence of a power outage in an electric power grid that supplies electric power to the stationary system. This includes the charging connector being capable of offloading electric power under conditions in which the RESS of the electrified vehicle is initially disconnected from the charging connector when the power outage occurs. This concept enables an electrified vehicle to supply electric power to a stationary system when connecting after a delay period subsequent to the power outage.
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