公开(公告)号：US20240186658A1

公开(公告)日：2024-06-06

申请号：US18072815

申请日：2022-12-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Derek Frei Lahr ,  Konrad Michael Brown ,  Chinmaya Patil

IPC: H01M50/509 ,  H01M50/213 ,  H01M50/559 ,  H01M50/583

CPC classification number: H01M50/509 ,  H01M50/213 ,  H01M50/559 ,  H01M50/583 ,  H01M2220/20

Abstract: Embodiments include a battery pack having a balanced current collector plate configured to connect a plurality of battery cells to one another and an electric vehicle including the same. The balanced current collector plate includes a terminal and a plurality of cell connection regions, each corresponding to one of the plurality of battery cells. Each of the plurality of cell connection regions includes one or more sidewalls, a cell connection tab that is configured to contact a terminal of a battery cell, and a cell fuse that is configured to electrically connect the cell connection tab to the balanced current collector plate. The geometry of each of the plurality of cell connection regions is configured to minimize a difference among the current draw between each of the plurality of battery cells and the terminal.

公开(公告)号：US20240348126A1

公开(公告)日：2024-10-17

申请号：US18298724

申请日：2023-04-11

Applicant: GM Global Technology Operations LLC

Inventor： Farzad Samie ,  Peng Peng ,  Xiaofeng Yang ,  Derek Frei Lahr

IPC: H02K9/00 ,  H05K7/20

CPC classification number: H02K9/00 ,  H05K7/20845

Abstract: A vehicle, system, and method of operating a motor of the vehicle. The motor includes a stator and a rotor. A motor controller controls a motor torque of the motor. A sensor measures a motor speed. A rotor temperature sensor measures a temperature of the rotor. A stator temperature sensor measures a temperature of the stator. A processor determines a stator heat loss at the stator based on the motor torque, the motor speed, and the stator temperature, determines a rotor heat loss at the rotor based on the motor torque, the motor speed, and the rotor temperature, and controls flow of a stator coolant stream through the stator at a stator coolant flow rate based on the stator heat loss and a rotor coolant stream through the rotor at a rotor coolant flow rate based on the rotor heat loss.

公开(公告)号：US12062946B2

公开(公告)日：2024-08-13

申请号：US17374244

申请日：2021-07-13

Applicant: GM Global Technology Operations LLC

Inventor： Alireza Fatemi ,  Anthony Michael Coppola ,  Derek Frei Lahr ,  Kestutis A. Sonta

IPC: H02K1/28 ,  H02K1/32

CPC classification number: H02K1/28 ,  H02K1/32

Abstract: A rotor for an electric machine includes a rotor body formed from a plurality of stacked laminations defining a first axial end and an opposing second axial end. Each of the plurality of stacked laminations includes a plurality of openings that are aligned so as to define a plurality of passages through the rotor body. A plurality of reinforcement elements extend through the plurality of stacked laminations. Each of the plurality of reinforcement elements is arranged in a corresponding one of the plurality of passages and includes a first end portion and a second end portion. The first end portion and the second end portion of select ones of the plurality of reinforcement elements extend outwardly of the first axial end and the second axial end.

公开(公告)号：US20230017290A1

公开(公告)日：2023-01-19

申请号：US17375753

申请日：2021-07-14

Applicant: GM Global Technology Operations LLC

Inventor： Farzad Samie ,  Anthony Michael Coppola ,  Jian Gao ,  Derek Frei Lahr ,  Velmurugan Ayyanar ,  SeungHwan Keum

IPC: H01M10/6556 ,  H05K7/20 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/625 ,  H01M10/653 ,  H01M50/204 ,  H01M50/249

Abstract: According to several aspects of the present disclosure, a battery module housing cooling assembly is disclosed. The battery module housing cooling assembly can include an endwall including a first polymer plate and a second polymer plate that define a slot therebetween. At least one of the first polymer plate or the second polymer plate define a channel therein that is configured to receive a coolant fluid, and the slot is configured to receive an electrical connector. The battery module housing cooling assembly can also include a cooling plate defining a first connection port and a second connection port, wherein the first connection port and a second connection port are configured to provide the coolant fluid to the channel.

公开(公告)号：US20240250569A1

公开(公告)日：2024-07-25

申请号：US18100896

申请日：2023-01-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anthony Michael Coppola ,  Derek Frei Lahr ,  Alireza Fatemi ,  Erik Brandon Golm ,  Alan G. Holmes ,  Michael B. Viola

IPC: H02K1/30 ,  H02K1/04 ,  H02K1/27

CPC classification number: H02K1/30 ,  H02K1/04 ,  H02K1/27 ,  H02K2201/09

Abstract: The present disclosure includes a rotor core assembly for an electric motor. The rotor core assembly includes a plurality of laminations secured together. A center bore is defined by the plurality of laminations. A longitudinal axis of the rotor core assembly extends along an axial center of the center bore. A carbon fiber sleeve surrounds the plurality of laminations. Magnet slots are defined by the plurality of laminations. The magnet slots extend parallel to the longitudinal axis. Magnets are seated in the magnet slots. Reinforcing bores are defined by, and extend across, the plurality of laminations. Reinforcing members are seated in the reinforcing bores.

公开(公告)号：US11728535B2

公开(公告)日：2023-08-15

申请号：US17375753

申请日：2021-07-14

Applicant: GM Global Technology Operations LLC

Inventor： Farzad Samie ,  Anthony Michael Coppola ,  Jian Gao ,  Derek Frei Lahr ,  Velmurugan Ayyanar ,  SeungHwan Keum

IPC: H01M10/6556 ,  H05K7/20 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/653 ,  H01M50/204 ,  H01M50/249 ,  H01M10/625

CPC classification number: H01M10/6556 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/625 ,  H01M10/653 ,  H01M50/204 ,  H01M50/249 ,  H05K7/20254 ,  H01M2220/20

Abstract: According to several aspects of the present disclosure, a battery module housing cooling assembly is disclosed. The battery module housing cooling assembly can include an endwall including a first polymer plate and a second polymer plate that define a slot therebetween. At least one of the first polymer plate or the second polymer plate define a channel therein that is configured to receive a coolant fluid, and the slot is configured to receive an electrical connector. The battery module housing cooling assembly can also include a cooling plate defining a first connection port and a second connection port, wherein the first connection port and a second connection port are configured to provide the coolant fluid to the channel.

公开(公告)号：US20230170772A1

公开(公告)日：2023-06-01

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: H02K15/02 ,  B29C65/56 ,  H02K1/2791

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.

公开(公告)号：US20230018286A1

公开(公告)日：2023-01-19

申请号：US17376334

申请日：2021-07-15

Applicant: GM Global Technology Operations LLC

Inventor： Alireza Fatemi ,  Anthony Michael Coppola ,  Derek Frei Lahr

IPC: H02K1/28 ,  H02K1/04 ,  H02K1/27 ,  H02K15/03 ,  H02K15/12

Abstract: A rotor for an electric machine includes a rotor body formed from a plurality of rotor laminations defining a first axial end and a second axial end. Each of the plurality of rotor laminations includes a plurality of openings that are aligned so as to define a plurality of passages through the rotor body. A plurality of reinforcement elements extend through the plurality of laminations. Each of the plurality of reinforcement elements is arranged in a corresponding one of the plurality of passages and includes a first end portion and a second end portion. The first end portion and the second end portion of select ones of the plurality of reinforcement elements extend outwardly of the first axial end and the second axial end. An end ring is positioned at the first axial end. The end ring is integrally formed with the select ones of the plurality of reinforcement elements.

公开(公告)号：US20250010699A1

公开(公告)日：2025-01-09

申请号：US18347128

申请日：2023-07-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lu HUANG ,  Hui-ping Wang ,  Dohyun Leem ,  Joshua Lee Solomon ,  Derek Frei Lahr ,  Blair E. Carlson

IPC: B60K1/04 ,  B60L50/60 ,  B60L50/64 ,  H01M50/209 ,  H01M50/249 ,  H01M50/264 ,  H01M50/271

Abstract: A rechargeable energy storage system for a vehicle including a bottom shear plate and a side enclosure having a bottom end connected to the bottom shear plate. A top shear plate is connected to a top end of the side enclosure and a plurality of battery cells are suspended from a bottom of the top shear plate by corresponding mating features that secure the plurality of cells to the top shear plate.

公开(公告)号：US20240291060A1

公开(公告)日：2024-08-29

申请号：US18174285

申请日：2023-02-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Derek Frei Lahr ,  Konrad Michael Brown ,  Alexander Millerman ,  Chinmaya Patil ,  Madhusudan Raghavan

IPC: H01M10/613 ,  H01M10/48 ,  H01M10/615 ,  H01M10/653 ,  H01M10/6554 ,  H01M50/204

CPC classification number: H01M10/613 ,  H01M10/486 ,  H01M10/615 ,  H01M10/653 ,  H01M10/6554 ,  H01M50/204 ,  H01M10/0525

Abstract: A battery pack having a plurality of battery modules is provided. Each of the plurality of battery modules includes a thermally conductive frame having a plurality of apertures and a plurality of battery cells, wherein each of the plurality of battery cells is disposed in one of the plurality of apertures. Each of the plurality of battery modules also includes a heating element disposed on a top of the thermally conductive frame and a cooling plate disposed on a bottom of the thermally conductive frame. The thermally conductive frame includes a plurality of cooling ribbons disposed between at least two of the plurality of apertures, wherein each of the plurality of cooling ribbons extend from top of the thermally conductive frame to the bottom of the thermally conductive frame.