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公开(公告)号：US12155266B2
公开(公告)日：2024-11-26
申请号：US17537563
申请日：2021-11-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony Michael Coppola , Alireza Fatemi , Derek Frei Lahr , Kestutis A. Sonta , Alan G. Holmes
Abstract: A rotor assembly for a permanent magnet motor includes a first assembly including a first plurality of laminations and a second assembly including a second plurality of laminations. The first assembly is located radially inside of the second assembly. The first assembly and the second assembly define a first opening therebetween. First and second permanent magnets are located in the first opening. Polymeric material surrounds the first and second permanent magnets in the first opening. An outer layer surrounds the rotor assembly.
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公开(公告)号：US20240146131A1
公开(公告)日：2024-05-02
申请号：US17977068
申请日：2022-10-31
Applicant: GM Global Technology Operations LLC
Inventor： Anthony Michael Coppola , Derek Frei Lahr , Alireza Fatemi , Alan G. Holmes , Michael B. Viola , Bradley Allen Newcomb
Abstract: A rotor for an electric machine includes a magnetic core configured for arrangement on a shaft. An end ring is arranged on opposite axial ends of the magnetic core. A composite sleeve includes an annular body including an inner surface and an outer surface, and a polymer matrix encapsulating circumferentially oriented fibers. The composite sleeve includes a first tapered portion on the inner surface arranged adjacent to an axial end thereof and configured to facilitate press-fitting of the composite sleeve onto the rotor.
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公开(公告)号：US11916446B2
公开(公告)日：2024-02-27
申请号：US17537123
申请日：2021-11-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony Michael Coppola , Alireza Fatemi , Derek Frei Lahr , Kestutis A. Sonta , Alan G. Holmes
IPC: H02K1/28 , H02K15/02 , H02K1/2791 , B29C65/56 , B29L31/00
CPC classification number: H02K15/028 , B29C65/565 , H02K1/2791 , B29L2031/7498
Abstract: A rotor for an electric machine includes a rotor assembly having an outer surface and including a plurality of poles with permanent magnets. A solid layer is formed on the outer surface of the rotor assembly and has an outer surface with a first coefficient of friction that is lower than a second coefficient of friction of the outer surface of the rotor assembly. The rotor includes an outer sleeve. The rotor assembly is press-fit into the outer sleeve.
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公开(公告)号：US11713803B1
公开(公告)日：2023-08-01
申请号：US17732714
申请日：2022-04-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony Michael Coppola , Derek Frei Lahr , Alireza Fatemi , Alan G. Holmes , Bradley Allen Newcomb
IPC: F16H57/02 , H02K5/02 , F16H57/032
CPC classification number: F16H57/032 , H02K5/02 , F16H2057/02034
Abstract: An electric motor drive unit including an electric motor having an output shaft and a plurality of gears in driving engagement with the output shaft. The plurality of gears being supported by a plurality of laterally spaced bearings. A composite housing member includes a structural support skeleton supporting multiple ones of the plurality of laterally spaced bearings and a composite shell molded to the structural support skeleton.
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公开(公告)号：US20230170746A1
公开(公告)日：2023-06-01
申请号：US17537563
申请日：2021-11-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony Michael Coppola , Alireza Fatemi , Derek Frei Lahr , Kestutis A. Sonta , Alan G. Holmes
CPC classification number: H02K1/02 , H02K1/2766
Abstract: A rotor assembly for a permanent magnet motor includes a first assembly including a first plurality of laminations and a second assembly including a second plurality of laminations. The first assembly is located radially inside of the second assembly. The first assembly and the second assembly define a first opening therebetween. First and second permanent magnets are located in the first opening. Polymeric material surrounds the first and second permanent magnets in the first opening. An outer layer surrounds the rotor assembly.
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Patent Agency Ranking
公开(公告)号：US11383593B2
公开(公告)日：2022-07-12
申请号：US17085038
申请日：2020-10-30
Applicant: GM Global Technology Operations LLC
Inventor： Alan G. Holmes , Pete R. Garcia , Joseph R. Littlefield
Abstract: An electric drive unit clutch for an automobile includes a first rotatable shaft, a one-way clutch fixedly mounted onto the first rotatable shaft, a dog clutch slidingly mounted onto the first rotatable shaft and adapted to rotate with the first rotatable shaft, a clutch ring positioned between the one-way clutch and the dog clutch, and a second rotatable shaft rotatable engaged with the clutch ring, wherein the clutch ring is adapted to transfer rotational motion from the second rotatable shaft through the one-way clutch and the dog clutch to the first rotatable shaft.
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公开(公告)号：US20200062114A1
公开(公告)日：2020-02-27
申请号：US16113416
申请日：2018-08-27
Applicant: GM Global Technology Operations LLC
Inventor： Alan G. Holmes , Joseph R. Littlefield
Abstract: An electric motor transaxle having a transaxle housing for a vehicle drive axle includes first and second axle-shafts that are configured to rotate about a common first axis. The transaxle includes a first planetary gear-set operatively connected to the first axle-shaft, configured to rotate about the first axis, and having first, second, third, and fourth members. The transaxle additionally includes a second planetary gear-set operatively connected to the second axle-shaft, configured to rotate about the first axis, and having first, second, third, and fourth members. The transaxle further includes an electric motor arranged on the first axis and configured to provide a direct electric motor torque input to each of the first and second planetary gear-sets. A vehicle drive axle for mounting in a motor vehicle and employing such an electric motor transaxle is also disclosed.
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公开(公告)号：US10476411B2
公开(公告)日：2019-11-12
申请号：US15492666
申请日：2017-04-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alan G. Holmes , Paul F. Turnbull
Abstract: An electric machine produces motor torque having continuously variable magnetic and reluctance torque components. The electric machine includes stator and rotor assemblies. Different ends of the rotor hub have different average magnetic field strengths, with the second field strength at one end being weaker than the other. The rotor hub translates along the rotor shaft to vary the magnetic and reluctance torque components at different speed and torque operating points of the electric machine. A vehicle includes the machine, a transmission, a load, and a controller executing a method for controlling the axial position of the rotor hub. The method may include determining the speed and a torque of the electric machine, determining a corresponding desired axial position of a rotor hub, and translating the rotor hub to the desired axial position.
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公开(公告)号：US20190145500A1
公开(公告)日：2019-05-16
申请号：US15811736
申请日：2017-11-14
Applicant: GM Global Technology Operations LLC
Inventor： Joseph R. Littlefield , Alan G. Holmes , Rebecca K. Risko Cattell
IPC: F16H3/66
Abstract: A vehicle powertrain includes first and second power sources and a transmission assembly having first and second input members and an output member. The transmission assembly also includes a first multiple node planetary gear-set connected to both input members and a second multiple node planetary gear-set connected to the output member. The transmission assembly additionally includes a transmission housing retaining the first and second gear-sets. Furthermore, the transmission assembly includes a first torque-transmitting device for connecting one second gear-set node to the transmission housing and a second torque-transmitting device for connecting one first gear-set node to one second gear-set node. One first gear-set node is directly and continuously connected to one second gear-set node. The first and second power sources are connected to the first gear-set, and the first power source is connected to the first gear-set node not directly and continuously connected to the second gear-set.
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公开(公告)号：US20180304736A1
公开(公告)日：2018-10-25
申请号：US15495438
申请日：2017-04-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Joseph R. Littlefield , Alan G. Holmes , Rebecca K. Risko Cattell
CPC classification number: B60K6/365 , B60K6/48 , B60K2006/4816 , B60Y2200/92 , F16H3/724 , Y10S903/91
Abstract: A power-split hybrid powertrain for a vehicle includes a first power-source configured to generate a first output torque, a second power-source configured to generate a second output torque, and a transmission assembly having a transmission input member. The powertrain also includes a planetary gear-set having first, second, and third nodes, wherein each of the three nodes is operatively connected to a separate one of the first power-source, second power-source, and transmission input member. The powertrain additionally includes a housing configured to retain the planetary gear-set. Also, the powertrain includes a first torque-transmitting device configured to selectively connect to the housing the node that is operatively connected to the first power-source. Furthermore, the powertrain includes a second torque-transmitting device configured to selectively connect the node that is operatively connected to the first power-source to the node that is operatively connected to the second power-source.
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