公开(公告)号：US20240393399A1

公开(公告)日：2024-11-28

申请号：US18363876

申请日：2023-08-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jian Yao ,  Zhenwen Hu ,  Chengwu Duan ,  Yue-Yun Wang

IPC: G01R31/367 ,  G01R31/36 ,  G01R31/378 ,  G01R31/388

Abstract: A mixed chemistry battery having a first battery cell having a first chemistry and a second battery cell having a second chemistry that is different than the first chemistry is provided. The first battery cell is connected to the second battery cell in series. The mixed chemistry battery includes a battery monitoring system configured to obtain a first SOC of the first battery cell and a second SOC of the second battery cell and based on a determination that an absolute value of a difference between the first SOC and the second SOC is greater than a threshold value, obtain a first capacity retention rate for the first battery cell and a second capacity retention rate for the second battery cell; and update the second SOC based on the first SOC, the first capacity retention rate, and the second capacity retention rate.

公开(公告)号：US20240177056A1

公开(公告)日：2024-05-30

申请号：US18179630

申请日：2023-03-07

Applicant: GM Global Technology Operations LLC

Inventor： Yusheng Zou ,  Ibrahim Haskara ,  Chengwu Duan ,  Bharatkumar Hegde

IPC: G06N20/00

CPC classification number: G06N20/00

Abstract: A system and method for predicting a health of a battery. The system includes a sensor and a processor. The sensor is configured to obtain a battery data indicative of a parameter of the battery. A plurality of scores for the battery data is determined, and the battery data is partitioned into a plurality of subsets for which the scores have a different behavior for each of the subsets. The processor partitions the battery data into a plurality of subsets, determines a score for each of the plurality of subsets, wherein each score is related to the health of the battery, generates an overall score from the scores from each of the subsets, and predicts the health of the battery from the overall score.

公开(公告)号：US20240146132A1

公开(公告)日：2024-05-02

申请号：US17987186

申请日：2022-11-15

Applicant: GM Global Technology Operations LLC

Inventor： Jian Yao ,  Chengwu Duan ,  Vincent Fedida

IPC: H02K1/28 ,  B60L50/10 ,  H02K1/2786

CPC classification number: H02K1/28 ,  B60L50/10 ,  H02K1/2786

Abstract: A rotor segment support member includes an annular body having an outer edge, an inner edge defining an opening, a first surface, and a second surface opposite the first surface. The rotor segment support member has a circumferential axis extending about the annular body and a radial axis extending between the outer edge and a center of the opening through the inner edge. The annular body has a non-uniform cross-section extending along one of the circumferential axis and the radial axis.

公开(公告)号：US20240128845A1

公开(公告)日：2024-04-18

申请号：US17975957

申请日：2022-10-28

Applicant: GM Global Technology Operations LLC

Inventor： Jian Yao ,  Chengwu Duan ,  Denghao Fan ,  Vincent Fedida ,  Thomas W. Nehl

IPC: H02K29/03 ,  B60L50/60 ,  H02K21/24

CPC classification number: H02K29/03 ,  B60L50/60 ,  H02K21/24 ,  H02K2201/06

Abstract: A member for an axial flux electric machine, in accordance with a non-limiting example, includes a support member having a first surface, a second surface opposite the first surface, an outer annular edge, and an inner annular edge that defines an opening having a center point. A plurality of members is mounted on one of the first surface and the second surface. Each of the plurality of members has a centerline that passes through the outer annular edge and the inner annular edge without passing through the center point creating a torque ripple reducing asymmetry in the member.

公开(公告)号：US11936239B2

公开(公告)日：2024-03-19

申请号：US17116661

申请日：2020-12-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alireza Fatemi ,  Anil K. Sachdev ,  Jian Yao ,  Anthony M. Coppola ,  Thomas W. Nehl ,  Chengwu Duan

IPC: H02K1/02 ,  H01F1/032 ,  H01F1/053 ,  H01F41/02 ,  H02K1/2793 ,  H02K1/32 ,  H02K15/03 ,  H02K21/24

CPC classification number: H02K1/02 ,  H01F1/032 ,  H01F1/053 ,  H01F41/0253 ,  H01F41/0266 ,  H02K1/2793 ,  H02K1/32 ,  H02K15/03 ,  H02K21/24

Abstract: A bi-material permanent magnet for an electric machine includes a core including a first magnetic material and a shell portion located on the core and made of a second magnetic material. The first magnetic material comprises a magnet material with an energy less than 20 Mega Gauss Oersteds (MGOe). The second magnetic material comprises a magnet material with an energy greater than 30 MGOe.

公开(公告)号：US20230396130A1

公开(公告)日：2023-12-07

申请号：US17851234

申请日：2022-06-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ming LIU ,  Jian Yao ,  Chengwu Duan

IPC: H02K9/19 ,  H02K7/14 ,  H02K11/33

CPC classification number: H02K9/19 ,  H02K7/14 ,  H02K11/33

Abstract: An axial flux motor assembly is disclosed and includes: an axial flux motor comprising a rotor, and a first stator; and a power inverter assembly. The power module assembly includes: a printed circuit board; a control module mounted on the printed circuit board; power module assemblies connected to the printed circuit board and controlled by the control module; and a cold plate. The cold plate is disposed between the first stator and the power module assemblies and includes a first side and a second side, which is opposite the first side. The cold plate cools the power module assemblies via the first side and the first stator via the second side.

公开(公告)号：US20230375628A1

公开(公告)日：2023-11-23

申请号：US17858202

申请日：2022-07-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chengwu Duan ,  Jian Yao ,  Dewen Kong ,  Jingyuan Liu

IPC: G01R31/3842 ,  H02J7/00 ,  G01R31/392 ,  H01M10/48

CPC classification number: G01R31/3842 ,  H02J7/0048 ,  H02J7/005 ,  G01R31/392 ,  H01M10/48 ,  H01M4/505

Abstract: A mixed chemistry battery is provided. The mixed chemistry battery includes a reference module having a first chemistry and a battery module having a second chemistry that is different that the first chemistry, the battery module is connected to the reference module in series. The mixed chemistry battery also includes a battery monitoring system configured to monitor an open circuit voltage of the reference module, an open circuit voltage of the battery module, and a current flow through the reference module and the battery module. The battery monitoring system is further configured to calculate a state-of-charge (SOC) and state-of-health (SOH) of the battery module based at least in part on a SOC of the reference module.

公开(公告)号：US20230167889A1

公开(公告)日：2023-06-01

申请号：US17562148

申请日：2021-12-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dongxu Li ,  Chengwu Duan ,  Norman K. Bucknor ,  Chunhao J. Lee ,  Lei Hao

IPC: F16H45/02 ,  F16H61/14 ,  F16H41/22

CPC classification number: F16H45/02 ,  F16H61/143 ,  F16H41/22 ,  F16H2045/0284 ,  F16H2041/246

Abstract: 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.

公开(公告)号：US20230167888A1

公开(公告)日：2023-06-01

申请号：US17562145

申请日：2021-12-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dongxu Li ,  Chengwu Duan ,  Norman K. Bucknor ,  Chunhao J. Lee ,  Lei Hao

IPC: F16H45/02 ,  F16D21/00 ,  B60K17/28 ,  B60K17/08 ,  B60K1/00 ,  B60K17/10

CPC classification number: F16H45/02 ,  B60K1/00 ,  B60K17/08 ,  B60K17/10 ,  B60K17/28 ,  F16D21/00 ,  F16H2045/005

Abstract: 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.

公开(公告)号：US11603925B1

公开(公告)日：2023-03-14

申请号：US17560560

申请日：2021-12-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chunhao J. Lee ,  Norman K. Bucknor ,  Dongxu Li ,  Chengwu Duan ,  Lei Hao

IPC: F16H45/02 ,  F16H61/14 ,  F16H61/00

Abstract: 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.