公开(公告)号：US20240291061A1

公开(公告)日：2024-08-29

申请号：US18302455

申请日：2023-04-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: H01M10/615 ,  H01M10/625 ,  H01M10/6555

CPC classification number: H01M10/615 ,  H01M10/625 ,  H01M10/6555

Abstract: A mixed chemistry battery including a sensing cell having a first chemistry, a battery cell having a second chemistry that is different than the first chemistry. The mixed chemistry battery also includes a sensor configured to measure a temperature of the mixed chemistry battery and a heating system configured to heat the second battery cell. The mixed chemistry battery further includes a battery monitoring system configured to selectively connect the heating system to at least one of the first battery cell and the second battery cell based upon the temperature of the mixed chemistry battery.

公开(公告)号：US20240253442A1

公开(公告)日：2024-08-01

申请号：US18193772

申请日：2023-03-31

Applicant: GM Global Technology Operations LLC

Inventor： Chengwu Duan ,  Jian Yao ,  Zhenwen Hu ,  Yusheng Zou

IPC: B60K1/04 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6569 ,  H01M50/209

CPC classification number: B60K1/04 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6569 ,  H01M50/209 ,  B60K2001/006 ,  H01M2220/20

Abstract: A battery pack includes a first header including a first conduit, a second header including a second conduit, and an energy storage system including a plurality of energy storage cells arranged between the first header and the second header. A coolant plate is arranged between the first header and the second header and abuts the plurality of energy storage cells. The coolant plate including a coolant channel having a first end fluidically connected to the first conduit, a second end fluidically connected to the second conduit, and an intermediate portion defining a flow path.

公开(公告)号：US20240235304A1

公开(公告)日：2024-07-11

申请号：US18364868

申请日：2023-08-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Anil K. Sachdev ,  Anthony Michael Coppola ,  Jian Yao ,  Chengwu Duan

IPC: H02K3/22 ,  H02K1/20 ,  H02K3/24 ,  H02K9/19

CPC classification number: H02K3/22 ,  H02K1/20 ,  H02K3/24 ,  H02K9/19

Abstract: A process for making a hollow electrical coil for an electric motor includes forming a sacrificial insert material into a coil shaped insert. The coil shaped insert is placed into a copper plating bath and a copper plated coil shaped member is removed from the copper plating bath. The sacrificial material is removed from within the copper plated coil shaped member to create a hollow passage through a hollow copper coil shaped member. An exterior of the hollow copper coil shaped member is coated with an insulating adhesive material and the copper coil shaped member is compressed until the insulating adhesive material is set.

公开(公告)号：US20240178732A1

公开(公告)日：2024-05-30

申请号：US18159793

申请日：2023-01-26

Applicant: GM Global Technology Operations LLC

Inventor： Jian Yao ,  Alan G. Holmes ,  Chengwu Duan ,  Vincent Fedida ,  Denghao Fan

IPC: H02K21/02 ,  H02K1/27

CPC classification number: H02K21/026 ,  H02K1/27 ,  H02K2201/03 ,  H02K2213/09

Abstract: An axial flux motor may include a stator, a rotor including a rotor frame and having a rotational axis, an axial air gap separating the stator and the rotor, the axial air gap corresponding to an axial position of the rotor frame, and at least one hydraulic actuator including a variable volume hydraulic fluid chamber defined within the rotor frame, wherein a change in the volume of the variable volume hydraulic fluid chamber causes a change in the axial position of the rotor frame and a corresponding change in the axial air gap separating the stator and the rotor.

公开(公告)号：US20240014699A1

公开(公告)日：2024-01-11

申请号：US17873470

申请日：2022-07-26

Applicant: GM Global Technology Operations LLC

Inventor： John S. Agapiou ,  Jian Yao ,  Zhen Gao ,  SeungHwan Keum

IPC: H02K1/20 ,  H02K1/14 ,  H02K1/16

CPC classification number: H02K1/20 ,  H02K1/145 ,  H02K1/16

Abstract: An axial flux electric motor includes a housing including an inner surface and a stator fixedly mounted in the housing. The stator includes a plurality of stator segments each supporting a winding, an inner support member defining a central passage, and an outer annular member constraining the plurality of stator segments. The outer annular member includes an outer surface portion abutting the inner surface of the housing. A thermal connection system is disposed between the outer surface portion of the outer annular member and the inner surface. The thermal connection system transfers heat from the stator into the housing.

公开(公告)号：US20230387735A1

公开(公告)日：2023-11-30

申请号：US17847705

申请日：2022-06-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SeungHwan Keum ,  Jian Yao ,  Anthony Michael Coppola

IPC: H02K1/20 ,  H02K3/24 ,  H02K5/20 ,  H02K15/02 ,  H02K15/12

CPC classification number: H02K1/20 ,  H02K3/24 ,  H02K5/203 ,  H02K15/02 ,  H02K15/12

Abstract: A stator of an electric machine includes a stator core and a plurality of electrically conductive windings secured to the stator core. A volume of potting material supports the plurality of electrically conductive windings at the stator core. One or more stator coolant channels are defined in the volume of potting material configured to convey a flow of stator coolant therethrough to remove heat from the plurality of electrically conductive windings. A method of forming a stator of an electric machine includes arranging a plurality of electrically conductive windings on a stator core, applying a volume of potting material to the plurality of electrically conductive windings, and defining one or more stator coolant channels in the volume of potting material. The one or more stator coolant channels are configured to convey a flow of stator coolant therethrough to remove heat from the plurality of electrically conductive windings.

公开(公告)号：US20230274880A1

公开(公告)日：2023-08-31

申请号：US17724618

申请日：2022-04-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jian Yao ,  Denghao Fan ,  Alan G. Holmes ,  Yusheng Zou ,  Thomas W. Nehl

IPC: H01F41/02 ,  H02K15/03

CPC classification number: H01F41/0286 ,  H02K15/03

Abstract: A method of manufacturing a permanent magnet for a rotor of an axial flux electric machine is described herein. The method includes forming multiple permanent magnet (PM) pieces to have the same shape. Each of the PM pieces has an inner radial surface, an outer radial surface, and a pair of side surfaces extending between the inner and outer radial surfaces. The method further includes attaching at least one of the side surfaces of each of the PM pieces to one of the side surfaces of another one of the PM pieces to form partitions configured to extend in a radial direction of the rotor.

公开(公告)号：US11703113B2

公开(公告)日：2023-07-18

申请号：US17560564

申请日：2021-12-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: F16H45/02 ,  H02K7/108 ,  H02K7/18 ,  H02K1/16 ,  H02K1/27 ,  B60K1/02 ,  F16H45/00 ,  B60K1/00

CPC classification number: F16H45/02 ,  H02K1/16 ,  H02K1/27 ,  H02K7/108 ,  H02K7/1823 ,  B60K1/00 ,  B60K1/02 ,  F16H2045/005

Abstract: 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.

公开(公告)号：US20230047862A1

公开(公告)日：2023-02-16

申请号：US17401663

申请日：2021-08-13

Applicant: GM Global Technology Operations LLC

Inventor： Jian Yao ,  Chengwu Duan ,  Yusheng Zou

IPC: H02K3/52 ,  H02K15/03 ,  H02K1/14

Abstract: A stator core assembly for an axial flux electric motor for an automobile includes a cylindrical outer case that defines a central axis, and a plurality of segmented core sections spaced circumferentially around the central axis within the outer case, each of the segmented core sections including a lamination stack and a sleeve, the lamination stack being positioned within the sleeve and the sleeve being formed from a soft magnetic composite material, the sleeve of each of the plurality of segmented core sections including a first axial end having a pole shoe formed thereon and a second axial end having a pole shoe formed thereon, the pole shoes formed on the first and second axial ends of the sleeve of each of the plurality of segmented core sections including a radially outward surface having an arcuate shape that corresponds to and contacts the radially inward surface of the outer case.

公开(公告)号：US20220376592A1

公开(公告)日：2022-11-24

申请号：US17324918

申请日：2021-05-19

Applicant: GM Global Technology Operations LLC

Inventor： Chengwu Duan ,  Alan G. Holmes ,  Jian Yao

IPC: H02K16/02 ,  H02K7/00 ,  H02K7/116 ,  H02K1/18

Abstract: An axial flux motor drive unit for an automobile includes a stator defining a core, an output defining an axis of rotation, a first rotor, a second rotor, and a thrust bearing. The first rotor is rotatable about the axis of rotation and is coupled to the output and disposed relative to the stator to create a first air gap. The second rotor is rotatable about the axis of rotation and is coupled to the output and is disposed relative to the stator to create a second air gap. The thrust bearing is coupled to the output and supports axial loads that are substantially parallel to the axis of rotation, and the first rotor is still rotatable about the axis of rotation when the second rotor is inoperable, and the second rotor is still rotatable when the first rotor is inoperable.