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1.发明公开公开(公告)号：US20240359596A1
公开(公告)日：2024-10-31
申请号：US18307308
申请日：2023-04-26
发明人： Suresh Gopalakrishnan , Neeraj S. Shidore , Chandra S. Namuduri , Lei Hao , Satish P. Ketkar , Christian Fau , Lyall Kenneth Winger
IPC分类号： B60L58/27 , H01M10/0525 , H01M10/46 , H01M10/48 , H01M10/625 , H01M10/657 , H02J7/00 , H02J7/02
CPC分类号： B60L58/27 , H01M10/0525 , H01M10/46 , H01M10/486 , H01M10/625 , H01M10/657 , H02J7/007194 , H02J7/02 , B60L2210/10 , H01M2220/20
摘要： A vehicle having an ambient temperature sensor, a low voltage lithium-ion battery and a controller is provided. The controller is configured to monitor the ambient temperature sensor and based on a determination that an ambient temperature is below a threshold value, provide an alternating current power to the low voltage lithium-ion battery. The alternating current power causes the low voltage lithium-ion battery to heat.
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公开(公告)号：US20240356362A1
公开(公告)日：2024-10-24
申请号：US18303123
申请日：2023-04-19
发明人： Chandra S. Namuduri , Rashmi Prasad
CPC分类号： H02J7/342 , B60L53/22 , H02J7/02 , H02M1/08 , H02M3/33573 , H02M7/219 , B60L2210/10 , H02J2207/20
摘要： A charging system of a vehicle includes a charging device configured to transfer an electric charge between a battery system of the vehicle and a recipient energy storage system, the charging device including a plurality of conversion stages. The charging system also includes a switching system configured to selectively bypass one or more conversion stages during a charging process, the charging process including transferring electric charge from the battery system to the recipient energy storage system, and a first controller configured to operate the switching system based on a voltage range of a recipient charge port of the recipient energy storage system.
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公开(公告)号：US12097784B2
公开(公告)日：2024-09-24
申请号：US18166612
申请日：2023-02-09
CPC分类号： B60L58/20 , H02J7/0031 , H02J7/0063 , B60L2210/10 , B60L2240/545 , B60L2240/547 , H02J2310/48
摘要： Fuse configurations for a distributed power architecture of a vehicle is provided. The distributed power architecture includes a high-voltage battery pack having a plurality of batteries and a plurality of converters, each of the plurality of converters being configured to receive high-voltage power from one of the plurality of batteries and to provide low-voltage power to a low-voltage bus. The distributed power architecture also includes a plurality of fuses disposed on one or more of an input side and an output side of each of the plurality of converters and a vehicle controller with at least one communication link to each of the plurality of power converters. Each of the plurality of fuses are configured to selectively prevent current flow through one of the plurality of converters.
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公开(公告)号：US12074590B2
公开(公告)日：2024-08-27
申请号：US17731911
申请日：2022-04-28
摘要： 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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公开(公告)号：US20240239235A1
公开(公告)日：2024-07-18
申请号：US18097375
申请日：2023-01-16
IPC分类号： B60L58/12 , G01R31/3828 , H02M1/00
CPC分类号： B60L58/12 , G01R31/3828 , H02M1/0009 , B60L2210/10 , B60L2240/54 , H02J2310/48
摘要： A battery system for an electric vehicle includes at least one battery cell configured to store charge for powering an electric vehicle, a high voltage bus electrically coupled with the at least one battery, a DC-DC converter electrically coupled with the battery cell, a low voltage bus electrically connected between the DC-DC converter and at least one vehicle electrical component, and a cell monitor electrically coupled with the at least one battery cell and the DC-DC converter, wherein the cell monitor includes a current sensor configured to detect a current from the at least one battery cell to the DC-DC converter. The cell monitor includes a controller configured to estimate a state of charge of the at least one battery cell according to the current detected by the current sensor, and adjust switching operation of the DC-DC converter according to the current detected by the current sensor.
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公开(公告)号：US12027900B1
公开(公告)日：2024-07-02
申请号：US18096592
申请日：2023-01-13
CPC分类号： H02J7/0063 , B60L50/60 , H02M3/003 , H05K7/20845 , B60L2210/10 , H02J2207/20
摘要： A battery system for a vehicle includes multiple battery cells each configured to store charge for powering an electric vehicle, a high voltage bus electrically coupled with the multiple battery cells to provide power to an electric motor, and multiple cell monitoring modules each coupled with a corresponding one of the multiple battery cells, each cell monitoring module including a controller configured to monitor operation parameters of the corresponding one of the multiple battery cells. The system includes multiple DC-DC converters in a converter housing, each DC-DC converter electrically coupled with a corresponding one of the multiple battery cells outside of the converter housing, and a low voltage bus electrically connected between the multiple DC-DC converters in the converter housing and at least one vehicle electrical component outside of the converter housing. The low voltage bus is configured to provide low voltage power to at least one vehicle electrical component.
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公开(公告)号：US12017545B2
公开(公告)日：2024-06-25
申请号：US17736701
申请日：2022-05-04
CPC分类号： B60L3/04 , B60L58/12 , H02J7/0031 , H02J7/0048
摘要： A vehicle, system, and method of providing electrical power to a vehicle. The electrical system includes a variable power source, a constant power source, a bus line connecting the variable power source to an electrical load of the vehicle, a switch between the bus line and the constant power source, and a processor. The processor is configured to monitor a voltage being supplied to the electrical load by the variable power source and to operate a fuse controller to close the switch between the bus line and the constant power source when the voltage being supplied to the electrical load drops below a first voltage threshold.
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公开(公告)号：US20240190293A1
公开(公告)日：2024-06-13
申请号：US18076455
申请日：2022-12-07
CPC分类号： B60L58/19 , H01M10/441 , H02J7/0024 , H02M3/1582 , H01M2220/20
摘要： An electric drive system for an electric vehicle is provided. The electric drive system includes a first electric drive, a second electric drive, and a switchable battery including at least two battery packs that are selectively arranged in one of a series configuration and a parallel configuration. The electric drive system also includes a first half-bridge buck converter connecting the first electric drive to a first battery back of the at least two battery packs of the switchable battery and a second half-bridge buck converter connecting the second electric drive to a second battery back of the at least two battery packs of the switchable battery. The electric drive system further includes a controller configured to control the configuration of the switchable battery, an operation of the first half-bridge buck converter, and the second half-bridge buck converter.
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公开(公告)号：US20240157832A1
公开(公告)日：2024-05-16
申请号：US17988085
申请日：2022-11-16
发明人： Lei Hao , Yue-Yun Wang , Norman K. Bucknor , Venkata Prasad Atluri , Chandra S. Namuduri , Suresh Gopalakrishnan
CPC分类号： B60L53/62 , B60L53/16 , H02J7/0018 , H02J7/0019 , H02J7/0024
摘要： Examples described herein provide a method that includes receiving, at a vehicle comprising a first battery pack and a second battery pack, at least one of a first electric charge from a first charging station via a first charging port or a second electric charge from a second charging station via a second charging port. The method further includes determining, by a controller of the vehicle, a charging mode of the vehicle. The charging mode is selected from a group consisting of a dynamic balancing during independent multi-port charging mode, a dynamic balancing during independent port charging mode, or a dynamic balancing during parallel charging mode. The method further includes configuring, by the controller of the vehicle, a plurality of switches of a rechargeable energy storage system of the vehicle based at least in part on the determined charging mode.
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公开(公告)号：US20240146075A1
公开(公告)日：2024-05-02
申请号：US17976063
申请日：2022-10-28
IPC分类号： H02J7/00 , B60L1/00 , B60L50/60 , B60L58/19 , H01M10/42 , H01M10/44 , H01M10/615 , H01M10/625 , H01M50/204 , H01M50/249 , H01M50/269
CPC分类号： H02J7/0024 , B60L1/003 , B60L50/60 , B60L58/19 , H01M10/425 , H01M10/441 , H01M10/615 , H01M10/625 , H01M50/204 , H01M50/249 , H01M50/269 , H01M2220/20 , H02J2207/20
摘要： An electrified vehicle may include a plurality of electric drive units, a plurality of battery packs, a plurality of charge ports and a plurality of controllable switches. The switches may be controlled to flexibly configure power transfer into and out of the vehicle through one or more charge ports affecting one or more battery packs in parallel or individually passively or actively through inverter integrated converter charge transfer.
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