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公开(公告)号：US20240235216A1
公开(公告)日：2024-07-11
申请号：US18151054
申请日：2023-01-06
CPC分类号： H02J7/0024 , B60L58/12 , B60L58/19 , H02J7/0047 , H02J7/0063 , H02J7/00712 , H02J7/345
摘要： A system for controlling propulsion in a vehicle includes a switching system connected to a battery system connected to a drive unit and to one or more electrical loads by a propulsion bus. A controller is configured to control the switching system to vary a voltage applied to the drive unit. The controller is configured to receive a request to transition between operating modes, the transition including a change of a voltage applied to the drive unit from an initial voltage level to a target voltage level. The controller is configured to sequentially perform deactivating the one or more electrical loads, based on the target voltage being higher than the initial voltage, pre-charging the one or more electrical loads, based on the target voltage being lower than the initial voltage, performing a discharge procedure, and operating the switching system to apply the voltage at the target voltage level.
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公开(公告)号：US12034134B2
公开(公告)日：2024-07-09
申请号：US17477670
申请日：2021-09-17
发明人： Lyall Kenneth Winger , Dave Gerard Rich , James Morrison , Suresh Gopalakrishnan , Chandra S. Namuduri
IPC分类号： H01M10/613 , B60L50/64 , B60L58/26 , H01M50/249
CPC分类号： H01M10/613 , B60L50/64 , B60L58/26 , H01M50/249
摘要： 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
IPC分类号： B60R16/023 , B60R16/02 , B60R16/03
CPC分类号： B60R16/0232 , B60R16/0207 , B60R16/03 , G06N3/0464
摘要： 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：US11987136B2
公开(公告)日：2024-05-21
申请号：US17490069
申请日：2021-09-30
CPC分类号： B60L15/2054 , B60W10/08 , B60L2210/40 , B60L2240/423 , B60L2240/429
摘要： A system in a vehicle includes a current regulator to obtain current commands from a controller based on a torque input and provide voltage commands and an inverter to use the voltage commands from the current regulator and direct current (DC) supplied by a battery to provide alternating current (AC). An electric traction motor provides drive power to a transmission of the vehicle based on injection of the AC from the inverter. A current observer obtains measured input current signals based on the AC for a current control cycle and provides predicted current signals for a next control cycle to the current regulator using a model. The current observer includes a controller to check output of the model against the measured input current signals. The current observer tunes parameters of the controller and the model used to generate the predicted current signals based on the measured input current signals.
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公开(公告)号：US20240162727A1
公开(公告)日：2024-05-16
申请号：US17988000
申请日：2022-11-16
CPC分类号： H02J7/00304 , B60L50/60 , B60L53/14 , B60L53/60 , H01M10/425 , H01M10/441 , H01M50/583 , H02J7/0013 , H02J7/0063 , H02J7/0068 , H01M2200/103 , H01M2220/20
摘要： An electric vehicle includes an electrical system and performs a method of charging the electric vehicle. The electrical system includes a first battery subpack, a second battery subpack, wherein the first battery subpack, the second battery subpack, and an electrical load of the electric vehicle are connected in parallel, and a processor. The processor is configured to control a first connection between the first battery subpack and a first charge port and a second connection between the second battery subpack and a second charge port to charge each of the first battery subpack and the second battery subpack while providing power to the electrical load.
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公开(公告)号：US20240149746A1
公开(公告)日：2024-05-09
申请号：US17982775
申请日：2022-11-08
发明人： Orgun A. Guralp , Suresh Gopalakrishnan , Chandra S. Namuduri , Chunhao J. Lee , Muhammad Hussain Alvi
摘要： A system for controlling propulsion in a vehicle includes a switching system connected to a battery system and a propulsion system. The battery system includes a first battery assembly and a second battery assembly, the propulsion system includes a first drive unit and a second drive unit, and the switching system includes a first switching device configured to selectively connect the first drive unit to the battery system and a second switching device configured to selectively connect the second drive unit to the battery system. The first switching device and the second switching device are independently operable. The system also includes a controller configured to operate the switching system to vary a voltage applied to at least one of the first drive unit and the second drive unit during vehicle propulsion.
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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
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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公开(公告)号：US11916414B2
公开(公告)日：2024-02-27
申请号：US17562567
申请日：2021-12-27
发明人： Venkata Prasad Atluri , Suresh Gopalakrishnan , Mark Daniel Gottlieb , Madhusudan Raghavan , Chandra S. Namuduri
IPC分类号： H02J7/00
CPC分类号： H02J7/00304 , H02J7/0031 , H02J7/00714
摘要： A protection system for a battery system includes a battery control module configured to selectively open at least one contactor to isolate the battery system from a load in response to a sensed current being greater than a first threshold and within a first current range, at least one fuse connected between first and second terminals of the battery system and configured to open to isolate the battery system from the load in response to the sensed current being greater than a second threshold and within a second current range that is greater than and offset from the first current range, and an auxiliary protection module configured to selectively form a short circuit between first and second terminals in response to the sensed current being greater than the first threshold, less than the second threshold, and within a coverage gap region between the first and second current ranges.
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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
发明人： Suresh Gopalakrishnan , Muhammad Hussain Alvi , Chandra S. Namuduri , Lyall Kenneth Winger , James Morrison , Xinyu Du
CPC分类号： H02H3/087 , H02H1/0015
摘要： 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：US20230365016A1
公开(公告)日：2023-11-16
申请号：US17740551
申请日：2022-05-10
CPC分类号： B60L53/53 , H02J7/02 , H02J7/0068 , H02J3/322 , H02M7/797 , H02J2207/20 , H02J2310/48 , B60L2210/30
摘要： A system in a vehicle includes a first winding section including first two or more windings and a second winding section including second two or more windings. Each of the second two or more windings corresponds to one of the first two or more windings of the first winding section. The system also includes an inverter including a high side switch and a low side switch corresponding to each of the first two or more windings. The inverter is coupled to a battery of the vehicle and boosts a voltage of a direct current (DC) charger during charging of the battery with the DC charger, converts alternating current (AC) from an AC grid to DC during charging of the battery with the AC grid, and converts DC to AC during supply of the AC grid by the battery.
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