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公开(公告)号：US20240246451A1
公开(公告)日：2024-07-25
申请号：US18157113
申请日：2023-01-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. Namuduri , Suresh Gopalakrishnan , Infane Lowe , Xinyu Du , Lyall Kenneth Winger
CPC classification number: B60L58/20 , H02M3/1582 , B60L2210/12 , B60L2210/14
Abstract: A smart energy center for a vehicle is provided. The smart energy center includes a buck convertor configured to provide power to a first load that has a substantially constant resistance level and a boost converter configured to provide power to a second load that requires a minimum voltage level and substantially constant power level. The smart energy center also includes a buck-boost converter configured to provide power to a third load that requires a voltage level within a threshold range and an electronic fuse configured to provide power to a fourth load. The smart energy center further includes a controller configured to operate the buck convertor, the boost converter, the buck-boost converter, and the electronic fuse.
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2.发明公开公开(公告)号：US20240243667A1
公开(公告)日：2024-07-18
申请号：US18097394
申请日：2023-01-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Mohamed Ahmed Kamel AHMED , Chandra S. Namuduri , Rashmi Prasad , Suresh Gopalakrishnan , Lyall Kenneth Winger
CPC classification number: H02M3/33573 , B60L50/60 , H02J7/0013 , H02J7/345 , H02M3/33584 , B60L2210/10 , H02J2207/20
Abstract: An energy storage system includes a plurality of batteries coupled in series, a plurality of first isolated DC-DC power converters each having first and second sides, a DC bus coupled to the second sides of the plurality of first isolated DC-DC power converters, and a second isolated DC-DC power converter coupled in parallel with the plurality of first isolated DC-DC power converters. Each of the first sides of the plurality of first isolated DC-DC power converters is coupled to at least one of the batteries. The second isolated DC-DC power converter includes a first side coupled to the plurality of batteries and a second side coupled to the DC bus. The second isolated DC-DC power converter is configured to mitigate a transient load condition on the DC bus.
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公开(公告)号：US11970078B2
公开(公告)日：2024-04-30
申请号：US17901966
申请日：2022-09-02
Applicant: GM Global Technology Operations LLC
Inventor： Chandra S. Namuduri , Suresh Gopalakrishnan , Lyall Kenneth Winger
IPC: B60L58/12 , B60L1/02 , B60L53/20 , G01R31/3842 , G01R31/389 , H02J7/00
CPC classification number: B60L58/12 , B60L1/02 , B60L53/20 , G01R31/3842 , G01R31/389 , H02J7/0048 , H02J7/0063 , B60L2210/10 , B60L2240/545 , B60L2240/547 , B60L2240/549 , H02J2207/20
Abstract: A system in a vehicle includes memory to store values obtained for a battery that supplies current to one or more loads. The values include battery state of charge. A processor obtains a measured battery current from a battery current sensor and a measured total current from a current sensor at a battery center that supplies the current directly to the one or more loads, obtain a generator current or a direct current-to-direct current (DC-DC) converter current from the measured total current and the battery current, determine a maximum available current as a sum of a maximum available battery current and either the generator current or the DC-DC converter current, and stop a supply of the current to one or more of the one or more loads based on a result of a comparison of the maximum available current with current draw by the one or more loads.
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4.发明公开公开(公告)号：US20240092289A1
公开(公告)日：2024-03-21
申请号：US17945274
申请日：2022-09-15
Applicant: GM Global Technology Operations LLC
Inventor： James Morrison , Lyall Kenneth Winger , Suresh Gopalakrishnan
IPC: B60R16/023
CPC classification number: B60R16/0238 , B60R16/0239
Abstract: A vehicle, an electrical system of the vehicle and a method of operating the vehicle. The electrical system includes an electrical load and an energy center for distribution of power to the electrical load. The energy center includes a fuse cluster having a plurality of electronic fuses, and the electrical load is coupled to the energy center via the plurality of electronic fuses of the fuse cluster. A selected electronic fuse of the fuse cluster is configured to detect a fault at the selected electronic fuse, make itself a master fuse of the fuse cluster in response to detecting the fault and control an operation of the fuse cluster.
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公开(公告)号：US20230353136A1
公开(公告)日：2023-11-02
申请号：US17731911
申请日：2022-04-28
Applicant: GM Global Technology Operations LLC
Abstract: A system in a vehicle includes a first fuse connected between a power source and a load. The first fuse is an electronic fuse (eFuse) to disconnect the load from the power source via the first fuse based on opening a first fuse switch. The system also includes a second fuse connected between the power source and the load via a second fuse switch. The first fuse and the second fuse are part of a cluster of fuses. A controller opens the first fuse switch and keeps the second fuse switch closed based on the vehicle entering a key-off mode in which the vehicle is turned off.
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Patent Agency Ranking
公开(公告)号：US12034134B2
公开(公告)日：2024-07-09
申请号：US17477670
申请日：2021-09-17
Applicant: GM Global Technology Operations LLC
Inventor： Lyall Kenneth Winger , Dave Gerard Rich , James Morrison , Suresh Gopalakrishnan , Chandra S. Namuduri
IPC: H01M10/613 , B60L50/64 , B60L58/26 , H01M50/249
CPC classification number: H01M10/613 , B60L50/64 , B60L58/26 , H01M50/249
Abstract: A battery system for a vehicle includes a battery tray having a base wall, a plurality of side walls, and a cover that collectively define a receiving zone. A vent includes an inlet and an outlet exposed to the battery receiving zone. A battery is supported by the base wall. A battery electronic controller (BEC) is arranged in the receiving zone and directly connected to the battery.
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公开(公告)号：US20240217460A1
公开(公告)日：2024-07-04
申请号：US18149802
申请日：2023-01-04
Applicant: GM Global Technology Operations LLC
Inventor： Xinyu Du , Lyall Kenneth Winger , Infane Lowe , Suresh Gopalakrishnan
IPC: B60R16/023 , B60R16/02 , B60R16/03
CPC classification number: B60R16/0232 , B60R16/0207 , B60R16/03 , G06N3/0464
Abstract: Examples described herein provide a method for predicting electrical failures within a vehicle. The method includes selectively enabling and disabling an electrical load for the vehicle. The method further includes collecting operational data about the electrical load during the selectively enabling and disabling of the electrical load. The method further includes training the model based at least in part on the operational data to predict a failure associated with the electrical load or a wiring harness associated with the electrical load.
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公开(公告)号：US20240075846A1
公开(公告)日：2024-03-07
申请号：US17901966
申请日：2022-09-02
Applicant: GM Global Technology Operations LLC
Inventor： Chandra S. Namuduri , Suresh Gopalakrishnan , Lyall Kenneth Winger
IPC: B60L58/12 , B60L1/02 , B60L53/20 , G01R31/3842 , G01R31/389 , H02J7/00
CPC classification number: B60L58/12 , B60L1/02 , B60L53/20 , G01R31/3842 , G01R31/389 , H02J7/0048 , H02J7/0063 , B60L2210/10 , B60L2240/545 , B60L2240/547 , B60L2240/549 , H02J2207/20
Abstract: A system in a vehicle includes memory to store values obtained for a battery that supplies current to one or more loads. The values include battery state of charge. A processor obtains a measured battery current from a battery current sensor and a measured total current from a current sensor at a battery center that supplies the current directly to the one or more loads, obtain a generator current or a direct current-to-direct current (DC-DC) converter current from the measured total current and the battery current, determine a maximum available current as a sum of a maximum available battery current and either the generator current or the DC-DC converter current, and stop a supply of the current to one or more of the one or more loads based on a result of a comparison of the maximum available current with current draw by the one or more loads.
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公开(公告)号：US20240063628A1
公开(公告)日：2024-02-22
申请号：US17889023
申请日：2022-08-16
Applicant: GM Global Technology Operations LLC
Inventor： Suresh Gopalakrishnan , Muhammad Hussain Alvi , Chandra S. Namuduri , Lyall Kenneth Winger , James Morrison , Xinyu Du
CPC classification number: H02H3/087 , H02H1/0015
Abstract: A vehicle, arc fault protection device of the vehicle and a method for mitigating an arc fault in an electrical system of the vehicle. The arc fault protection device includes a sensor, a switch, and a processor. The sensor is used for measuring a current in an electrical system. The processor is configured to determine a precursor phase of an arc fault from the current, wherein the precursor phase indicates an onset of an arc flash phase of the arc fault. The processor opens the switch to mitigate the arc fault during the arc flash phase.
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公开(公告)号：US20230398903A1
公开(公告)日：2023-12-14
申请号：US17839769
申请日：2022-06-14
Applicant: GM Global Technology Operations LLC
Inventor： Mohamed Kamel , Chandra S. Namuduri , Rashmi Prasad , Muhammad Hussain Alvi , Lyall Kenneth Winger
CPC classification number: B60L58/22 , H02M7/537 , B60L53/60 , B60L2210/10 , B60L2210/40
Abstract: A rechargeable energy storage system may include a series arrangement of a plurality of batteries coupled to a first DC bus at a first DC voltage. A DC to DC converter may include a multi-input DC input stage coupled to a multi-output DC output stage. The multi-input DC input stage may include multiple distributed DC inputs, each distributed DC input being coupled to a respective one of the plurality of batteries. The multi-output DC output stage may include multiple aggregated DC outputs. At least one controllable switch may couple one or more of the multiple aggregated DC outputs to one or more other DC buses.
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