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公开(公告)号：US20240257996A1
公开(公告)日：2024-08-01
申请号：US18161496
申请日：2023-01-30
发明人： Qigui Wang , John S. Agapiou , Liang Wang , Lei Hao
CPC分类号： H01B13/0036 , B23K20/023 , H01B5/02 , H01B13/0016 , B23K2101/38 , B23K2103/10
摘要： A method of making an electric conductor having a conductive skin layer. The method comprises providing a conductive member having a first width and a conductive layer disposed thereon for conductivity. The conductive layer has a second width to define a width ratio of the first width to the second width of 4:1 to 200:1. The conductive layer has greater conductivity than the conductive member. The method comprises disposing the conductive layer about the conductive member to define a conductive layered member and pressing the conductive layered member for mechanical contact to define a pressed layered member. The method comprises thermally treating the pressed layered member for diffusion between the conductive layer and the conductive member defining a diffused layered member. The method further comprises cooling the diffused layered member for diffusion bonding free of an intermetallic phase between the conductive layer and the conductive member.
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公开(公告)号：US12027908B2
公开(公告)日：2024-07-02
申请号：US17746139
申请日：2022-05-17
发明人： Lei Hao , Suresh Gopalakrishnan , Chandra S. Namuduri , Dongxu Li
IPC分类号： H02J7/02 , B60R16/033 , H02M7/217 , H02M7/5387
CPC分类号： H02J7/02 , B60R16/033 , H02M7/217 , H02M7/53871 , H02J2207/20
摘要： A system in a vehicle includes a first set of one or more windings and a second set of one or more windings electrically isolated from the first set of one or more windings. The system also includes a first inverter coupled to a battery of the vehicle and the first set of one or more windings and a second inverter electrically separated from the first inverter and coupled to the second set of one or more windings. A universal charger includes an alternative current (AC) charging port and a direct current (DC) charging port. A switch is controlled to close to connect the second inverter to the battery.
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3.发明公开公开(公告)号：US20240157819A1
公开(公告)日：2024-05-16
申请号：US17986246
申请日：2022-11-14
发明人： Chandra S. Namuduri , Suresh Gopalakrishnan , Venkata Prasad Atluri , Lei Hao , Yue-Yun Wang , Ibrahim Haskara
摘要： An electric vehicle, system and method of charging the electric vehicle. In another exemplary embodiment, a system for charging an electric vehicle is disclosed. The system includes a first battery subpack, a second battery subpack, and a processor. The processor is configured to determine a selected battery subpack from the first battery subpack and the second battery subpack for charging based on a comparison of a first state of charge of the first battery subpack a second state of charge of the second battery subpack and connect the selected battery subpack to a corresponding one of a first charge port and a second charge port.
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公开(公告)号：US11984834B2
公开(公告)日：2024-05-14
申请号：US17699261
申请日：2022-03-21
发明人： Muhammad Hussain Alvi , Chandra S. Namuduri , Suresh Gopalakrishnan , Chunhao J. Lee , Lei Hao , Yue-Yun Wang , Rashmi Prasad
CPC分类号： H02P5/74 , H02J7/0013 , H02J7/0063 , H02P23/14
摘要： A power control system comprises a battery system including N battery packs. A plurality of contactors selectively connects N battery packs of a battery system in a first configuration supplying a first voltage level, a second configuration supplying a second voltage level, and a disconnected configuration. M power inverters connect the battery system to M electric machines, respectively. A controller is configured to determine when to transition between the first configuration and the second configuration. The controller is configured to transition between the first configuration and the second configuration by causing one of a positive torque transient and a negative torque transient to be generated by at least one of the M electric machines, transitioning the battery system from one of the first configuration and the second configuration to the disconnected configuration, and transitioning from the disconnected configuration to the other one of the first configuration and the second configuration.
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公开(公告)号：US11757391B1
公开(公告)日：2023-09-12
申请号：US17676535
申请日：2022-02-21
发明人： Lei Hao , Yue-Yun Wang , Steven E. Muldoon
摘要： A motor drive system of a vehicle includes: an inverter that receives power from a power source via a bus, where the inverter is connected to a motor of the vehicle; a driver that drives the inverter; a filter that filters a current signal received from the bus to generate a filtered signal; and a control module that operates in an impedance determination mode. The impedance determination mode includes: based on the filtered signal, controlling the driver and the inverter to generate a pulsed signal applied to the power source; determining a current level and a voltage of the power source due to generation of the pulsed signal, and determining impedance based on the current level and the voltage. The control modules are configured to: determine a characterization parameter of the power source based on the impedance; and perform a control operation or a countermeasure based on the characterization parameter.
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公开(公告)号：US20230167889A1
公开(公告)日：2023-06-01
申请号：US17562148
申请日：2021-12-27
发明人： Dongxu Li , Chengwu Duan , Norman K. Bucknor , Chunhao J. Lee , Lei Hao
CPC分类号： F16H45/02 , F16H61/143 , F16H41/22 , F16H2045/0284 , F16H2041/246
摘要： A system for bypassing a torque converter in a powertrain is provided. The system includes a torque generating device including an output shaft and a transmission assembly. The transmission assembly includes a transmission output shaft and a torque converter, a torque converter bypass shaft. The transmission assembly further includes a disconnect clutch selectively coupling the torque converter with the torque generating device and a torque converter clutch selectively coupling the torque converter bypass shaft with the torque generating device. Engaging the disconnect clutch and disengaging the torque converter clutch enables the torque generating device to transmit torque to the transmission output shaft through the torque converter. Engaging the torque converter clutch and disengaging the disconnect clutch enables the torque generating device to transmit torque to the transmission output shaft through the torque converter bypass shaft.
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公开(公告)号：US20230167888A1
公开(公告)日：2023-06-01
申请号：US17562145
申请日：2021-12-27
发明人： Dongxu Li , Chengwu Duan , Norman K. Bucknor , Chunhao J. Lee , Lei Hao
摘要： A system for a power take-off mechanism for a powertrain system is provided. The system includes an electrically powered torque generating device including a torque generating device output shaft and a transmission output shaft receiving mechanical power from the torque generating device output shaft. The system further includes a clutch selectively disengaging the transmission output shaft from the torque generating device output shaft and a power take-off module receiving mechanical power from the torque generating device.
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公开(公告)号：US20230148115A1
公开(公告)日：2023-05-11
申请号：US17519735
申请日：2021-11-05
发明人： Steven E. MULDOON , Yue-Yun Wang , Bin Li , Lei Hao
CPC分类号： H01M10/425 , G07C5/0808 , B60L58/18 , B60L3/0046 , B60L3/0092 , H01M10/486 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2260/00 , H01M2220/20 , H01M2010/4271
摘要： A battery system for a vehicle includes a plurality of battery modules, each of the plurality of battery modules including a respective management module, and a master management module configured to communicate with the management modules and with a battery control module. Each of the management modules includes a communication interface configured to transmit data to the master management module and receive data from the master management module and a diagnostic module configured to monitor operating parameters of a respective one of the plurality of battery modules, detect a fault associated with the respective one of the plurality of battery modules based on the operating parameters, and selectively output a signal indicative of the detected fault.
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公开(公告)号：US11603925B1
公开(公告)日：2023-03-14
申请号：US17560560
申请日：2021-12-23
发明人： Chunhao J. Lee , Norman K. Bucknor , Dongxu Li , Chengwu Duan , Lei Hao
摘要： Presented are clutch control systems for torque converter (TC) assemblies, methods for making/operating such TC assemblies, and vehicles equipped with such TC assemblies. A TC assembly includes a housing that drivingly connects to an electric motor, and an output member that drivingly connects to a multi-gear transmission. Rotatable within the TC housing are a turbine attached to the TC output member and an impeller juxtaposed with the turbine. A lockup clutch is operable to lock the housing to the output member. A system controller is programmed to receive a shift signal to shift the powertrain from a neutral or park operating mode to a forward driving operating mode; responsive to receipt of this shift signal, the lockup clutch is opened. The system controller then receives a TCC lock signal to lock the lockup clutch; responsive to receipt of the TCC lock signal, the lockup clutch is closed.
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公开(公告)号：US11527941B2
公开(公告)日：2022-12-13
申请号：US17110865
申请日：2020-12-03
发明人： Wei Zeng , Scott E. Parrish , Lei Hao , Jeremie Dernotte
摘要： An apparatus for automobile vehicle rotor temperature measurement includes a motor having a rotor. A stator has the rotor positioned within the stator. An aperture extends through the stator. A sensor is positioned in alignment with the aperture sensing a temperature of at least a surface of the rotor.
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