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公开(公告)号：US20240304878A1
公开(公告)日：2024-09-12
申请号：US18179722
申请日：2023-03-07
发明人： Charles W. Wampler , Meinan He , Meng Jiang , Yongjie Zhu , Chunhao J. Lee
IPC分类号： H01M10/48 , G01R31/3842 , G01R31/389 , G01R31/392
CPC分类号： H01M10/482 , G01R31/3842 , G01R31/389 , G01R31/392 , H01M10/488 , H01M10/052
摘要： Catastrophic capacity failure in Lithium Metal Battery (LMB) cells is preceded by an increase in battery resistance. At a fixed temperature, the onset of failure occurs at the same value of resistance across the cell(s). Various embodiments use this phenomenon as a prognostic for predicting when such a failure is likely to occur. In various aspects, a normalized resistance in a vehicle or other device may be detected and compensated for temperature differences. The compensated resistances, a threshold state of charge (SOC), and capacity differences may be used to predict capacity failure in remaining capacity or distance (e.g., miles), to identify failing LMB cells, and to send a prognostic alert.
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2.发明公开公开(公告)号：US20240253640A1
公开(公告)日：2024-08-01
申请号：US18163141
申请日：2023-02-01
发明人： Dongxu Li , Su-Yang Shieh , Chunhao J. Lee , Paul Guillermo Otanez , Jason C. Jousma , Matthew Pruski
IPC分类号： B60W30/188 , B60W10/08 , B60W10/11 , B60W30/20
CPC分类号： B60W30/188 , B60W10/08 , B60W10/11 , B60W30/20 , B60W2510/1005 , B60W2510/1025 , B60W2710/083
摘要： A vehicle includes a control system that performs method of operating the vehicle. The control system includes a first motor processor associated with a first motor of the vehicle. The first motor processor receives a torque command from a vehicle motion control module, coordinates an allocation of the torque command into a first motor torque at the first motor and a transmission torque at a first transmission associated with the first motor, and controls the first motor to apply the torque command at the first motor.
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公开(公告)号：US20240235453A1
公开(公告)日：2024-07-11
申请号：US18150392
申请日：2023-01-05
发明人： Chunhao J. Lee , Farzad Samie , Xiaofeng Yang
CPC分类号： H02P29/0027 , B60L15/20 , B60L2240/421 , B60L2240/425
摘要： A system and control method for displacing a fluid out of an air gap of a propulsion motor is based upon at least one electric propulsion motor parameter and may include actuating an air injection pump configured to inject air into the air gap.
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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：US20240159280A1
公开(公告)日：2024-05-16
申请号：US17984471
申请日：2022-11-10
发明人： Dongxu Li , Michael Ding , Bryan John Williams , Chunhao J. Lee , Zhen J. Zhang
IPC分类号： F16D48/06
CPC分类号： F16D48/066 , F16D2500/102 , F16D2500/3024 , F16D2500/3065 , F16D2500/3067 , F16D2500/30806
摘要： A vehicle includes a transmission that performs a method of operating a clutch of a vehicle. The vehicle includes the clutch, an actuator device and a processor. The actuator device includes a piston movable to operate the clutch. The processor is configured to receive a pressure signal indicative of a selected fluid pressure for operating the clutch, determine a position for the piston in the actuator device from the pressure signal, and move the piston to the position to operate the clutch at the selected fluid pressure.
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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：US11906315B2
公开(公告)日：2024-02-20
申请号：US17562171
申请日：2021-12-27
发明人： Yue-Yun Wang , Dongxu Li , Brandon D. Mazzara , Jonathan Wilson , Chen-Fang Chang , Chunhao J. Lee
CPC分类号： G01C21/3469 , B60W40/00
摘要： A trip energy estimation system includes a memory and a control module. The memory stores average traffic speed, average traffic acceleration, driver speed, and driver acceleration data. The control module executes an algorithm to estimate an amount of energy for an electric vehicle to travel between two locations. The algorithm includes: determining, based on the average traffic speed data and the average traffic acceleration data, a baseline amount of energy for the electric vehicle to travel between the two locations; determining, based on the driver speed data and the driver acceleration data, a dynamic amount of energy corresponding to at least one of stop and go events, over speeding, or under speeding; and determining a total amount of energy based on the baseline amount of energy and the dynamic amount of energy. The control module, based on the total amount of energy, performs an operation including indicating a trip estimate.
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公开(公告)号：US11821501B2
公开(公告)日：2023-11-21
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
CPC分类号： F16H45/02 , B60K1/00 , B60K17/08 , B60K17/10 , B60K17/28 , F16D21/00 , F16H2045/002 , F16H2045/005
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：US20230167886A1
公开(公告)日：2023-06-01
申请号：US17560564
申请日：2021-12-23
发明人： Chengwu Duan , Jian Yao , Lei Hao , Dongxu Li , Chunhao J. Lee , Norman K. Bucknor
CPC分类号： F16H45/02 , H02K7/108 , H02K7/1823 , H02K1/27 , H02K1/16 , F16H2045/005
摘要： An electrified drivetrain system that maximizes power density, is readily packaged, and improves drivability is described. It includes a propulsion system having an axial-flux rotating electric machine, a torque converter having a selectable one-way clutch, and an output member that is couplable to a drivetrain. The axial-flux rotating electric machine include a first rotor coaxially arranged with a first electric stator. The torque converter includes a fluidic stator, a pump, a turbine and a torque converter clutch. The axial-flux rotating electric machine is arranged coaxially with the torque converter. The first rotor of the axial-flux rotating electric machine is coupled to the pump of the torque converter, and the turbine of the torque converter is rotatably coupled to the output member.
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公开(公告)号：US11639748B1
公开(公告)日：2023-05-02
申请号：US17560552
申请日：2021-12-23
发明人： Chengwu Duan , Dongxu Li , Jian Yao , Chunhao J. Lee , Norman K. Bucknor
摘要： An electrified drivetrain system that improves drivability is described. It includes a propulsion system having a rotary electric machine including a rotatable shaft, a torque converter including a fluidic stator, a pump, a turbine and a normally-closed torque converter clutch; a selectable one-way clutch coupled to the fluidic stator; and an output member. The rotatable shaft is coupled to the pump of the torque converter, and the turbine of the torque converter is coupled to the output member.
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