公开(公告)号：US20240243331A1

公开(公告)日：2024-07-18

申请号：US18153511

申请日：2023-01-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chinmaya Patil ,  John Patrick Spicer ,  Miguel Arturo Saez ,  Madhusudan Raghavan

IPC: H01M10/04 ,  G01R31/385 ,  G01R31/389 ,  G01R31/396 ,  H01M50/509

CPC classification number: H01M10/0404 ,  G01R31/3865 ,  G01R31/389 ,  G01R31/396 ,  H01M50/509

Abstract: Embodiments include a method for creating a battery pack for a vehicle. Aspects include receiving a plurality of battery cells, measuring an internal resistance level for each of the plurality of battery cells, and creating, based at least in part on the internal resistance level for each of the plurality of battery cells, a plurality of groups from the plurality of battery cells. Aspects also include connecting each of the plurality of battery cells in each of the plurality of groups in parallel and connecting each of the plurality of groups in series.

公开(公告)号：US20240213611A1

公开(公告)日：2024-06-27

申请号：US18086032

申请日：2022-12-21

Applicant: GM Global Technology Operations LLC

Inventor： Chinmaya Patil ,  Venkata Prasad Atluri ,  Teresa U. Holiness-Stalling ,  John Patrick Spicer ,  Madhusudan Raghavan

IPC: H01M50/258 ,  H01M50/204 ,  H01M50/249 ,  H01M50/262

CPC classification number: H01M50/258 ,  H01M50/204 ,  H01M50/249 ,  H01M50/262 ,  H01M50/531

Abstract: A modular cell holder assembly includes a first cell holder member including a first cell receptacle and a second cell holder member including a second cell receptacle. The second cell holder member is connected with the first cell holder member forming a modular cell holder with the first cell receptacle and the second cell receptacle combining to form a cell receiving zone. A plurality of current connectors is provided on an outer surface of one of the first cell holder member and the second cell holder member. The plurality of current connectors is configured to establish a selected electrical configuration of energy storage cells in the cell receiving zone.

公开(公告)号：US20240023222A1

公开(公告)日：2024-01-18

申请号：US17863535

申请日：2022-07-13

Applicant: GM Global Technology Operations LLC

Inventor： Madhusudan Raghavan ,  Brent Thomas Deep

IPC: H05F7/00

CPC classification number: H05F7/00

Abstract: A method and apparatus for harvesting a static electric charge from suspended particles in an atmosphere includes exposing a charge conductor to the suspended particles in the atmosphere and selectively providing a conductive path between the charge conductor and a terrestrial ground including a rechargeable energy storage device. Energy may be selectively transferred to another energy storage device.

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：US11336101B2

公开(公告)日：2022-05-17

申请号：US16780308

申请日：2020-02-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei Hao ,  Yue-Yun Wang ,  Suresh Gopalakrishnan ,  Chandra S. Namuduri ,  Rashmi Prasad ,  Madhusudan Raghavan

IPC: H02J7/00 ,  H02J7/14 ,  B60L53/18 ,  B60W10/08 ,  B60L53/24

Abstract: A system for use with a direct current fast-charging (DCFC) station includes a controller and battery system. The battery system includes first and second battery packs, and first, second, and third switches. The switches have ON/OFF conductive states commanded by the controller to connect the battery packs in a parallel-connected (P-connected) or series-connected (S-connected) configuration. An electric powertrain with one or more electric machines is powered via the battery system. First and second charge ports of the system are connectable to the station via a corresponding charging cable. The first charge port receives a low or high charging voltage from the station. The second charge port receives a low charging voltage. When the station can supply the high charging voltage to the first charge port, the controller establishes the S-connected configuration via the switches, and thereafter charges the battery system solely via the first charge port.

公开(公告)号：US11220172B2

公开(公告)日：2022-01-11

申请号：US16597007

申请日：2019-10-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Neeraj S. Shidore ,  Derek F. Lahr ,  Lei Hao ,  Madhusudan Raghavan ,  Suresh Gopalakrishnan

IPC: B60K6/54 ,  B60K6/383 ,  B60K6/387 ,  F16H1/28 ,  F16H9/02 ,  H02K7/00 ,  H02K7/108 ,  H02K7/116 ,  H02K11/00 ,  H02K11/04 ,  H02K13/00 ,  B60K6/26

Abstract: A vehicle powertrain includes a first power-source configured to generate a first power-source torque and a multiple speed-ratio transmission configured to transmit the first power-source torque to power the vehicle. The powertrain also includes a fluid coupling having a fluid pump shaft operatively connected to the first power-source and a turbine shaft operatively connected to the multi-speed transmission. The fluid coupling is configured to multiply the first power-source torque, and transfer the multiplied first power-source torque to the multiple speed-ratio transmission. The powertrain additionally includes a second power-source configured to generate a second power-source torque and a first torque transfer system configured to connect the second power-source to the first power-source. The powertrain further includes a second torque transfer system configured to connect the second power-source to the multi-speed transmission. A motor vehicle having such a powertrain is also envisioned.

公开(公告)号：US11155153B2

公开(公告)日：2021-10-26

申请号：US15995640

申请日：2018-06-01

Applicant: GM Global Technology Operations LLC

Inventor： John A. Cafeo ,  Madhusudan Raghavan ,  Wei Li ,  Anil Bika ,  Azeem Sarwar ,  Ran Y. Gazit ,  Winson Ng ,  Ryan C. Sekol ,  Thomas A. Yersak

IPC: B60K6/42 ,  B60R16/03 ,  H02J7/00 ,  B60R16/04 ,  B60K6/28

Abstract: A vehicle including a hybrid battery pack includes a first battery pack and a second battery pack. The first battery pack has a higher energy density than the second battery pack. The second battery pack has a higher power density than the first battery pack. A power inverter module is connected between the hybrid battery pack and a motor generator unit (MGU) that is connected to a powertrain of the vehicle. The power inverter module is configured to regulate power flow between the hybrid battery pack and the MGU. A battery management module is configured to: control switching of the power inverter module; selectively charge and discharge at least one of the first battery pack and the second battery pack; and selectively charge the first battery pack with power from the second battery pack.

公开(公告)号：US20190232950A1

公开(公告)日：2019-08-01

申请号：US15883791

申请日：2018-01-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Venkata Prasad Atluri ,  Madhusudan Raghavan ,  Neeraj S. Shidore

IPC: B60W20/40 ,  G05D1/02 ,  B60K6/485 ,  B60K6/36 ,  B60K6/543 ,  B60K6/547 ,  B60W20/11 ,  B60W20/12 ,  B60W20/30 ,  B60W30/095 ,  B60W40/04 ,  B60W40/06

CPC classification number: B60W20/40 ,  B60K6/36 ,  B60K6/485 ,  B60K6/543 ,  B60K6/547 ,  B60W20/11 ,  B60W20/12 ,  B60W20/30 ,  B60W30/0953 ,  B60W30/0956 ,  B60W40/04 ,  B60W40/06 ,  B60W2550/10 ,  B60W2550/12 ,  B60W2550/14 ,  B60W2550/30 ,  B60W2550/402 ,  B60W2550/404 ,  B60W2550/408 ,  G05D1/0223 ,  H04W4/44 ,  H04W4/46

Abstract: A powertrain system for a vehicle operates in one of a plurality of powertrain propulsion modes including an engine-only drive mode, an electric-only (EV) drive mode, a regenerative braking mode, a coasting mode and an engine/electric-assist mode. The vehicle also includes a Global Positioning System (GPS) sensor, a vehicle navigation system, a telematics system, a vehicle spatial monitoring system and a controller. The controller includes an instruction set that is executable to determine a trajectory for the vehicle, and determine road conditions, traffic conditions and surface conditions based upon the trajectory for the vehicle and the road conditions, traffic conditions and surface conditions. One of the powertrain propulsion modes is selected based upon the trajectory for the vehicle and the road conditions, traffic conditions and surface conditions. Operation of the hybrid powertrain system is controlled in the selected propulsion mode.

公开(公告)号：US20180050685A1

公开(公告)日：2018-02-22

申请号：US15239004

申请日：2016-08-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Venkata Prasad Atluri ,  Peter Beller ,  Norman K. Bucknor ,  Tito R. Huffman ,  Derek F. Lahr ,  Chunhao J. Lee ,  Dongxu Li ,  Chandra S. Namuduri ,  Thomas W. Nehl ,  Madhusudan Raghavan ,  Alexandru Rajala ,  Farzad Samie ,  Neeraj S. Shidore

IPC: B60W20/40 ,  B60W10/08 ,  B60W10/06 ,  B60W10/02 ,  B60W10/30 ,  B60K6/543 ,  B60K6/48

CPC classification number: B60W20/40 ,  B60K6/40 ,  B60K6/48 ,  B60K6/543 ,  B60K2006/4825 ,  B60W10/02 ,  B60W10/023 ,  B60W10/026 ,  B60W10/04 ,  B60W10/06 ,  B60W10/08 ,  B60W10/30 ,  B60W20/20 ,  B60W2510/244 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2710/024 ,  B60W2710/0644 ,  B60W2710/081 ,  B60W2710/305 ,  B60Y2200/92 ,  B60Y2300/182 ,  Y02T10/6221 ,  Y02T10/6252 ,  Y10S903/93

Abstract: A vehicle propulsion system includes an engine and a first electric machine each configured to selectively provide torque to propel the vehicle. A second electric machine is coupled to the engine to provide torque to start the engine from an inactive state. A high-voltage power source is configured to power both of the first electric machine and the second electric machine over a high-voltage bus. A propulsion controller is programmed to start the engine using cranking torque output from the second electric machine powered by the high-voltage power source. The controller is also programmed to operate both of the first electric machine and the combustion engine to propel the vehicle in response to an acceleration demand greater than a threshold. The controller is further programmed to decouple the engine and propel the vehicle using the first electric machine in response to vehicle speed less than a speed threshold.

公开(公告)号：US20250033527A1

公开(公告)日：2025-01-30

申请号：US18358398

申请日：2023-07-25

Applicant: GM Global Technology Operations LLC

Inventor： Shuonan Xu ,  Jun-mo Kang ,  Madhusudan Raghavan

IPC: B60L58/24 ,  B60L50/64 ,  B60L58/18 ,  H01M10/42 ,  H01M10/613 ,  H01M10/625 ,  H01M10/63 ,  H01M10/6561 ,  H01M10/658

Abstract: A method for operating a vehicle includes drawing operational power from a first set of battery cells and providing heating/cooling to the first set of battery cells and not to a second set of battery cells to maintain the first set of battery cells within an operational temperature window in a first mode of operation. The method switches to a second mode of operation in response to a power assist request, and draws operational power from the first set of battery cells and a second set of battery cells and provides heating/cooling to maintain the first set of battery cells and the second set of battery cells within the operational temperature window during the second mode of operation.