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公开(公告)号：US20240266924A1
公开(公告)日：2024-08-08
申请号：US18164572
申请日：2023-02-04
发明人： Yilun Luo , Chandra S. Namuduri , Suresh Gopalakrishnan , Muhammad H. Alvi , Azadeh Narimissa , William T. Ivan , Saranraj Karuppuswami
摘要： A choke device for an electric machine system is provided. The choke device includes a common-mode choke including a magnetic core configured in cross-section as a geometric shape including a hollow center. The choke device further includes a plurality of electric transmission lines configured for transmitting electrical energy in alternating current, wherein the plurality of electric transmission lines is routed through the hollow center. The geometric shape includes a number of sides based upon a number of the electric transmission lines present and is configured for minimizing or reducing an overall flux length of the magnetic core.
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72.发明公开公开(公告)号：US20240253517A1
公开(公告)日：2024-08-01
申请号：US18160197
申请日：2023-01-26
发明人： Lei Hao , Suresh Gopalakrishnan , Peng Peng , Dongxu Li , Chandra S. Namuduri , Muhammad Hussain Alvi
CPC分类号： B60L55/00 , B60L15/007 , H02J3/322 , H02M7/003
摘要： An electric vehicle includes a drive system which operates a method of transferring power between the vehicle and an external power grid. The drive system includes a battery, a rectifier, and a processor. The processor is configured to connect the rectifier between an alternating current (AC) port of an outlet of an external power grid and the battery, the rectifier configured to convert between an AC power at the AC port on a grid side of the rectifier and a direct current (DC) power at a vehicle side of the rectifier in order to transfer power bi-directionally between the external power grid and the battery.
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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
CPC分类号： B60L58/20 , H02M3/1582 , B60L2210/12 , B60L2210/14
摘要： 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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74.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
发明人： Mohamed Ahmed Kamel AHMED , Chandra S. Namuduri , Rashmi Prasad , Suresh Gopalakrishnan , Lyall Kenneth Winger
CPC分类号： H02M3/33573 , B60L50/60 , H02J7/0013 , H02J7/345 , H02M3/33584 , B60L2210/10 , H02J2207/20
摘要： 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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75.发明公开公开(公告)号：US20240217366A1
公开(公告)日：2024-07-04
申请号：US18149870
申请日：2023-01-04
发明人： Ibrahim Haskara , Venkata Prasad Atluri , Norman K. Bucknor , Chandra S. Namuduri , Suresh Gopalakrishnan
CPC分类号： B60L53/62 , B60L50/60 , H02J7/0014 , H02J7/0048 , B60L2240/545 , B60L2240/547
摘要： A method for charging an electric vehicle is provided. Aspects include configuring a switchable battery of the electric vehicle in a fast-charging configuration by connecting a first battery pack of the switchable battery to a first charging source and a second battery pack of the switchable battery to a second charging source and obtaining one or more characteristics of the first battery pack and the second battery pack. Aspects also include identifying the first battery pack as a master pack and the second battery pack as a follower pack based on a determination that the first battery pack has a lower voltage level than the second battery pack. Aspects further include adjusting a duty cycle of a switchable active load connected in parallel to the follower pack based on the one or more characteristics of the first battery pack and the second battery pack.
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公开(公告)号：US12009715B2
公开(公告)日：2024-06-11
申请号：US17729216
申请日：2022-04-26
摘要： A method includes: selectively actuating switches of an inverter module and first, second, third, and fourth switches of a motor; and charging a battery with power from a charger using at least one of first, second, and third stator windings of the motor, the battery having a first voltage and being electrically connected in parallel with the inverter module, and the charger having a second voltage that is less than the first voltage.
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公开(公告)号：US12000869B2
公开(公告)日：2024-06-04
申请号：US17869120
申请日：2022-07-20
CPC分类号： G01R15/20 , G01R19/0092 , G01R23/02
摘要： A system includes a current sensor disposed proximate to a first conductor of a conductor assembly, the current sensor configured to measure a current through the first conductor and generate a first current measurement. The system also includes a correction module configured to perform a correction method. The correction method includes determining a frequency of the first current measurement, and applying a gain correction factor to the first current measurement, the gain correction factor based on pre-characterization data relating a gain of a reference current sensor to frequency. In addition, or alternatively, the correction method includes determining a first phase of the first current measurement, acquiring a second current measurement of a second conductor of the conductor assembly, determining a second phase of the second current measurement, and applying a current adjustment to the first current measurement based on a temporal relationship between the first phase and the second phase.
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公开(公告)号：US11987132B2
公开(公告)日：2024-05-21
申请号：US17145598
申请日：2021-01-11
发明人： Yue-Yun Wang , Lei Hao , Suresh Gopalakrishnan
CPC分类号： B60L15/20 , B60L50/51 , B60L2210/42 , B60L2240/423 , B60L2240/427 , B60L2240/429
摘要： A system for torque control of an electric motor in a motor vehicle includes a power inverter that delivers a current to the electric motor to regulate the torque of the electric motor and a model predictive control module that sends a three-phase voltage to the power inverter to control the operation of the power inverter.
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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
IPC分类号： B60L58/12 , B60L1/02 , B60L53/20 , G01R31/3842 , G01R31/389 , H02J7/00
CPC分类号： B60L58/12 , B60L1/02 , B60L53/20 , G01R31/3842 , G01R31/389 , H02J7/0048 , H02J7/0063 , B60L2210/10 , B60L2240/545 , B60L2240/547 , B60L2240/549 , H02J2207/20
摘要： 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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80.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
IPC分类号： B60R16/023
CPC分类号： B60R16/0238 , B60R16/0239
摘要： 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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