公开(公告)号：US20240234859A1

公开(公告)日：2024-07-11

申请号：US18356765

申请日：2023-07-21

Applicant: GM Global Technology Operations LLC

Inventor： Andrew Clay BOBEL ,  Anil K. Sachdev ,  Anthony Michael Coppola ,  Sayed Youssef Sayed Nagy ,  Jian Yao

IPC: H01M10/653 ,  C25D3/38 ,  C25D5/50 ,  C25D7/06 ,  H01M10/613 ,  H01M10/6557 ,  H01M10/6567 ,  H01M50/213

CPC classification number: H01M10/653 ,  C25D3/38 ,  C25D5/50 ,  C25D7/0671 ,  H01M10/613 ,  H01M10/6557 ,  H01M10/6567 ,  H01M50/213

Abstract: A process for making a ribbon-shaped hollow thermal conductor includes forming a sacrificial material into an insert including a plurality of parallel strands. Plating the sacrificial insert with copper to form a ribbon-shaped structure and removing the sacrificial material from within the ribbon-shaped structure to create a hollow passage through a ribbon-shaped hollow copper thermal conductor.

公开(公告)号：US20240146130A1

公开(公告)日：2024-05-02

申请号：US18074085

申请日：2022-12-02

Applicant: GM Global Technology Operations LLC

Inventor： Jian Yao ,  Vincent Fedida ,  Alan G. Holmes ,  Chengwu Duan ,  Yusheng Zou

IPC: H02K1/2798 ,  H02K16/02 ,  H02K21/24

CPC classification number: H02K1/2798 ,  H02K16/02 ,  H02K21/24

Abstract: An example rotor includes a rotor yoke having an outer circumference and an inner circumference. The rotor further includes a plurality of rotor ribs on a surface the rotor yoke and extending between the outer circumference and the inner circumference. The rotor further includes a plurality of magnets, each of the plurality of magnets being disposed adjacent to and between two of the plurality of rotor ribs.

公开(公告)号：US20240130085A1

公开(公告)日：2024-04-18

申请号：US18127115

申请日：2023-03-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ming LIU ,  Jian Yao ,  Chengwu Duan ,  Chih-hung Yen ,  Anil K. Sachdev

IPC: H05K7/20

CPC classification number: H05K7/20336 ,  H05K7/203

Abstract: A cooling system includes a housing including a base portion with sides and a bottom surface that define a cavity and a cover portion to enclose the base portion and including cooling members attached thereto. A shield is arranged in the cavity. A vertical member is arranged below the shield to define a first fluid chamber between one side of the vertical member and one side of the base portion and a second fluid chamber between an opposite side of the vertical member and another side of the base portion. The electronic components are arranged in the second fluid chamber. Cooling fluid is arranged in the cavity and has a fluid level below at least a portion of the shield. The housing is mounted at an inclined angle relative to horizontal or the housing is mounted parallel to horizontal and the shield is mounted at the inclined angle.

公开(公告)号：US11804744B2

公开(公告)日：2023-10-31

申请号：US17714252

申请日：2022-04-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chengwu Duan ,  Zhen Gao ,  Jian Yao

IPC: H02K1/2798 ,  H02K1/16 ,  H02K21/24 ,  H02K3/30 ,  H02K16/02 ,  H02K1/18

CPC classification number: H02K1/2798 ,  H02K1/165 ,  H02K1/182 ,  H02K3/30 ,  H02K16/02 ,  H02K21/24

Abstract: An axial flux electric machine comprises a stator including a plurality of stator core segments each comprising a lamination comprising a plurality of layers. A first soft magnetic composite (SMC) portion is arranged adjacent to the plurality of layers of the lamination. An insulating layer arranged between circumferential side surfaces of the plurality of layers of the lamination and the first SMC portion. A rotor is arranged axially adjacent to the stator and including a plurality of permanent magnets. The rotor and stator are configured to generate magnetic flux that is aligned parallel to an axis of rotation of the rotor.

公开(公告)号：US11646611B2

公开(公告)日：2023-05-09

申请号：US17387473

申请日：2021-07-28

Applicant: GM Global Technology Operations LLC

Inventor： Jian Yao ,  Chengwu Duan

IPC: H02K1/14 ,  H02K21/24 ,  H02K16/02 ,  H02K1/18

CPC classification number: H02K1/148 ,  H02K1/182 ,  H02K16/02 ,  H02K21/24 ,  H02K1/141 ,  H02K1/16 ,  H02K1/165

Abstract: A stator core assembly for an axial flux electric motor for an automobile includes a cylindrical outer case that defines a central axis, first and second disk shaped insulate frames axially spaced from one another and positioned within the outer case, each of the first and second insulate frames including a circular outer ring, a circular inner ring and a plurality of radial spokes extending between the outer ring and the inner ring and spaced circumferentially about the central axis, and a plurality of segmented core sections extending axially between the first and second insulate frames spaced circumferentially around and supported by the first and second insulate frames, wherein, a radial spoke is positioned between each adjacent pair of segmented core sections, and at least one radial spoke extends across each axial end of each one of the plurality of segmented core sections.

公开(公告)号：US11594929B2

公开(公告)日：2023-02-28

申请号：US16779788

申请日：2020-02-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jian Yao ,  Chengwu Duan ,  Mingyuan Zhang

IPC: H02K3/28 ,  H02K1/18

Abstract: An axial flux motor having reduced spatial harmonics including a rotor with a plurality of magnets. A rotor shaft is coupled to the rotor. A stator faces the rotor and an air gap defined between the rotor and the stator. The stator includes a plurality of electromagnetic components defining a plurality of magnetic poles. The electromagnetic components include a plurality of posts, a plurality of slots, and a plurality of distributed electrically conductive windings disposed in and spanning across nonadjacent slots of the plurality of slots. At least one electrically conductive winding has a winding pitch span of greater than or equal to about 3 to less than or equal to about 20. The axial flux motor may include two rotors and one stator or alternatively two stators and one rotor. Such axial flux motors have short pitch provide desirable reduced spatial harmonics to enhance motor performance.

公开(公告)号：US20230029734A1

公开(公告)日：2023-02-02

申请号：US17387473

申请日：2021-07-28

Applicant: GM Global Technology Operations LLC

Inventor： Jian Yao ,  Chengwu Duan

IPC: H02K1/14 ,  H02K1/18 ,  H02K16/02 ,  H02K21/24

Abstract: A stator core assembly for an axial flux electric motor for an automobile includes a cylindrical outer case that defines a central axis, first and second disk shaped insulate frames axially spaced from one another and positioned within the outer case, each of the first and second insulate frames including a circular outer ring, a circular inner ring and a plurality of radial spokes extending between the outer ring and the inner ring and spaced circumferentially about the central axis, and a plurality of segmented core sections extending axially between the first and second insulate frames spaced circumferentially around and supported by the first and second insulate frames, wherein, a radial spoke is positioned between each adjacent pair of segmented core sections, and at least one radial spoke extends across each axial end of each one of the plurality of segmented core sections.

公开(公告)号：US20220212534A1

公开(公告)日：2022-07-07

申请号：US17141597

申请日：2021-01-05

Applicant: GM Global Technology Operations LLC

Inventor： Farzad Samie ,  Madhusudan Raghavan ,  Jian Yao ,  Alireza Fatemi

IPC: B60K6/442 ,  F16H57/02 ,  F16H45/02 ,  B60K6/383 ,  B60K6/365 ,  F16H57/04 ,  H02K7/00 ,  H02K7/10 ,  H02K7/116

Abstract: A hybrid powertrain for an automobile includes a transmission adapted to provide power to wheels of the automobile, an engine adapted to provide power to an input shaft of the transmission, and an electric motor-generator unit adapted to provide power to the input shaft of the transmission, wherein the electric motor-generator is positioned within the transmission, coaxial with the transmission input shaft, the electric motor-generator being supported by and enclosed within a pump support of the transmission.

公开(公告)号：US10941840B2

公开(公告)日：2021-03-09

申请号：US15829259

申请日：2017-12-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jian Yao ,  Chengwu Duan ,  Chunhao J. Lee ,  Derek F. Lahr ,  Farzad Samie

IPC: F16H9/18 ,  F16H61/662 ,  F15B15/12 ,  F16H57/04 ,  F16H63/06 ,  F16H57/12 ,  F16H9/26 ,  F16H61/664 ,  F16H55/56

Abstract: A powertrain has a continuously variable transmission including a shaft rotatable about an axis. The CVT further comprises a variator assembly that includes a pulley supported on the shaft. The pulley has a movable sheave with a ramp surface. The movable sheave is axially movable on the shaft. The variator assembly also includes an endless rotatable device frictionally engaged with the movable sheave. An actuator mechanism includes a wedge component supported on the shaft. The wedge component has a wedge surface that automatically engages the ramp surface when torque on the shaft is in a first direction. The wedge surface applies a wedge force on the ramp surface. The actuator mechanism further includes an actuator that is operatively connected to the movable sheave and is activatable to apply a force on the movable sheave.

公开(公告)号：US10767729B2

公开(公告)日：2020-09-08

申请号：US15750696

申请日：2015-09-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chengwu Duan ,  Chi-kuan Kao ,  Jian Yao

IPC: F16G5/18 ,  F16H9/24 ,  F16G13/08 ,  F16H57/00 ,  F16G5/20 ,  F16G1/28 ,  F16G13/06 ,  F16H55/56 ,  F16H55/49 ,  F16G13/04 ,  F16H55/52

Abstract: A number of variations may include a product that may include a linking member that may have links arranged in rows that have multiple pitch lengths. Each of the rows may have at least one link. Each of the multiple pitch lengths may be a discrete length that may be different from others of the multiple pitch lengths. The rows may be arranged along the linking member in a repeating sequence of the multiple pitch lengths.