公开(公告)号：US10189470B2

公开(公告)日：2019-01-29

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 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/30 ,  B60K6/48 ,  B60K6/543 ,  B60K6/40 ,  B60W10/04 ,  B60W20/20

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：US20160185335A1

公开(公告)日：2016-06-30

申请号：US14585658

申请日：2014-12-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chandra S. Namuduri ,  Alexandru Rajala ,  Alan G. Holmes ,  Thomas Wolfgang Nehl ,  Venkata Prasad Atluri ,  Madhusudan Raghavan

IPC: B60W20/00 ,  F16H19/02 ,  B60W10/08 ,  B60K6/44 ,  B60W10/02 ,  B60K6/36 ,  B60K6/387 ,  F16H7/08 ,  B60W10/11

CPC classification number: B60W20/10 ,  B60K6/36 ,  B60K6/387 ,  B60K6/44 ,  B60K6/485 ,  B60K2006/268 ,  B60K2006/4841 ,  B60W10/02 ,  B60W10/08 ,  B60W10/11 ,  B60W20/30 ,  F16H7/0827 ,  F16H19/02 ,  Y02T10/6226 ,  Y10S903/93

Abstract: A powertrain includes an engine with a crankshaft rotating on a first axis, motor/generator unit (MGU), belted drive system, transmission, actuator assembly, and controller. An MGU rotor shaft rotates about a second axis. The belted drive assembly has a first pulley connected to the crankshaft, a second pulley selectively connected to the rotor shaft, and an endless rotatable drive element that connects the pulleys. The transmission is connected to the flywheel via an input clutch. The actuator assembly has a third axis parallel to the first and second axes, a linear actuator(s), pinion gears translatable along the third axis to selectively engage the first and second gear elements, and overrunning clutches to passively disengage the pinion gears from the first or second gear element. The controller transmits control signals to the MGU and linear actuators to command a control state via translation of the pinion gears.

Abstract translation: 动力总成包括具有在第一轴线上旋转的曲轴的发动机，马达/发电机单元（MGU），带式驱动系统，变速器，致动器组件和控制器。 MGU转子轴绕第二轴线旋转。 带式驱动组件具有连接到曲轴的第一滑轮，选择性地连接到转子轴的第二滑轮和连接滑轮的环形旋转驱动元件。 变速器通过输入离合器连接到飞轮。 致动器组件具有平行于第一和第二轴线的第三轴线，线性致动器，可沿着第三轴线平移的小齿轮，以选择性地接合第一和第二齿轮元件，以及超越离合器以将小齿轮从 第一或第二齿轮元件。 控制器向MGU和线性致动器发送控制信号，通过小齿轮的平移来控制控制状态。

公开(公告)号：US20240380025A1

公开(公告)日：2024-11-14

申请号：US18316551

申请日：2023-05-12

Applicant: GM Global Technology Operations LLC

Inventor： Neeraj S. Shidore ,  Chinmaya Patil ,  SeungHwan Keum ,  Sanjay K. Mahajan ,  Madhusudan Raghavan

IPC: H01M10/6556 ,  H01M10/613 ,  H01M10/653 ,  H01M10/6552 ,  H01M50/213

Abstract: A rechargeable energy storage system includes a housing including an interior zone, a coolant member arranged in the interior zone of the housing, and a plurality of energy storage cells arranged in the interior zone on the coolant member. Each of the plurality of energy storage cells includes a cell can defining an energy storage medium housing. The cell can includes a first end supported at the coolant member and a second end. An amount of energy storage medium is arranged in the energy storage medium housing. A heat absorption member extends from the first end toward the second end through the amount of energy storage medium.

公开(公告)号：US11843134B2

公开(公告)日：2023-12-12

申请号：US17523719

申请日：2021-11-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark Daniel Gottlieb ,  Venkata Prasad Atluri ,  Madhusudan Raghavan

IPC: H01M50/583 ,  H01M50/581 ,  H01H85/02

CPC classification number: H01M50/583 ,  H01H85/0241 ,  H01M50/581 ,  H01H2085/025 ,  H01M2200/103 ,  H01M2220/20

Abstract: A power control system for a battery system of a vehicle includes a first contactor, a second contactor, N fuses and N vehicle loads. An active sacrificial protection device includes a third contactor and a first fuse. The active sacrificial protection device is connected to a positive or negative terminal of the battery system. A current sensor is configured to sense a measured load current flowing through one of the first contactor and the second contactor. A battery management module is configured to selectively close the third contactor to reduce current flowing through one of the first contactor or the second contactor and selectively open the one of the first contactor or the second contactor after closing the third contactor.

公开(公告)号：US20220097540A1

公开(公告)日：2022-03-31

申请号：US17037974

申请日：2020-09-30

Applicant: GM Global Technology Operations LLC

Inventor： Venkata Prasad Atluri ,  Hanho Yun ,  Chandra S. Namuduri ,  Madhusudan Raghavan ,  Venkatesh Gopalakrishnan

IPC: B60L53/16 ,  H02J7/00 ,  H02M3/158 ,  B60L53/66

Abstract: An apparatus for charging an electric vehicle includes a plug command center having data identifying an availability of an amount of energy which is available for transfer from a first battery system of a first battery electric vehicle (BEV) to a second BEV. A charging adapter provides for energy transfer between a first plug of the first BEV and a second plug of the second BEV. A V2V charging controller communicates data identifying a battery system charge state of the first BEV and a battery system charge state of the second BEV and selects between multiple available charging options.

公开(公告)号：US20210242691A1

公开(公告)日：2021-08-05

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 ,  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：US20210107348A1

公开(公告)日：2021-04-15

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

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：US10676079B1

公开(公告)日：2020-06-09

申请号：US16211801

申请日：2018-12-06

Applicant: GM Global Technology Operations LLC

Inventor： Norman K. Bucknor ,  Madhusudan Raghavan

IPC: B60W20/15 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/30 ,  B60W30/188 ,  B60K6/48

Abstract: A hybrid electric powertrain system includes a transmission, engine, e-accessory, primary and secondary electric machines, and controller. The e-accessory is powered by the secondary electric machine in response to an accessory torque demand. The engine and primary electric machine are connected to the transmission and configured, alone or in combination, to provide input drive torque to the transmission. The secondary electric machine is connected to the e-accessory and satisfies the accessory torque demand. A first clutch between the secondary electric machine and a transmission input member connects the secondary electric machine to the input member. The controller, in response to an output torque request, executes a power-sharing strategy using an objective cost function that allocates engine torque, primary motor torque, and secondary motor torque to the input member to satisfy the output torque request, while satisfying the accessory torque demand via the secondary electric machine.

公开(公告)号：US09586575B2

公开(公告)日：2017-03-07

申请号：US15274531

申请日：2016-09-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alan G. Holmes ,  Venkata Prasad Atluri ,  Chandra S. Namuduri ,  Robert S. Conell ,  Michael G. Reynolds ,  Thomas Wolfgang Nehl ,  Bob R. Powell ,  Madhusudan Raghavan

IPC: B60W10/26

CPC classification number: B60W10/26 ,  B60K6/485 ,  B60L1/003 ,  B60L11/14 ,  B60L11/1851 ,  B60L11/1868 ,  B60L15/2072 ,  B60L2210/10 ,  B60L2240/44 ,  B60L2240/486 ,  B60L2240/507 ,  B60L2260/26 ,  B60W30/1886 ,  F02N11/006 ,  F02N11/04 ,  F02N11/0866 ,  F02N11/087 ,  F02N2300/2002 ,  H02J7/1423 ,  Y02T10/6226 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7275 ,  Y02T90/16 ,  Y10S903/93 ,  Y10T477/23

Abstract: An electrical system includes an engine, a motor-generator and a starter mechanism, and engine systems also include the engine. The electrical system includes a first energy storage device having a first voltage level and a second energy storage device having a second voltage level less than the first voltage level. The electrical system further includes a controller configured to control the motor-generator, the starter mechanism and first and second switching devices. Current from at least one of the first and second energy storage devices is delivered to the motor-generator when at least one of the first switching device is in a first closed state and the second switching device is in a second closed state such that the motor-generator transfers torque to the starter mechanism and the starter mechanism uses the torque to start the engine.

Abstract translation: 电气系统包括发动机，电动发电机和起动机构，发动机系统还包括发动机。 电气系统包括具有第一电压电平的第一能量存储装置和具有小于第一电压电平的第二电压电平的第二能量存储装置。 电气系统还包括控制器，其被配置为控制电动发电机，起动机构以及第一和第二开关装置。 当第一开关装置中的至少一个处于第一关闭状态并且第二开关装置处于第二关闭状态时，来自第一和第二能量存储装置中的至少一个的电流被传送到电动发电机，使得电动机 发电机将扭矩传递到起动机构，起动机构使用转矩启动发动机。

公开(公告)号：US20160257190A1

公开(公告)日：2016-09-08

申请号：US15155646

申请日：2016-05-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alan G. Holmes ,  Venkata Prasad Atluri ,  Chandra S. Namuduri ,  Robert S. Conell ,  Michael G. Reynolds ,  Thomas Wolfgang Nehl ,  Bob R. Powell ,  Madhusudan Raghavan

IPC: B60K6/50 ,  B60K6/442 ,  F02N11/08 ,  B60W20/00 ,  B60W10/08 ,  F02N15/02 ,  B60K6/26 ,  B60L11/18

CPC classification number: B60W10/26 ,  B60K6/485 ,  B60L1/003 ,  B60L11/14 ,  B60L11/1851 ,  B60L11/1868 ,  B60L15/2072 ,  B60L2210/10 ,  B60L2240/44 ,  B60L2240/486 ,  B60L2240/507 ,  B60L2260/26 ,  B60W30/1886 ,  F02N11/006 ,  F02N11/04 ,  F02N11/0866 ,  F02N11/087 ,  F02N2300/2002 ,  H02J7/1423 ,  Y02T10/6226 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7275 ,  Y02T90/16 ,  Y10S903/93 ,  Y10T477/23

Abstract: A powertrain includes a motor-generator and an auxiliary electric system. The powertrain also includes a first energy storage device disposed in a parallel electrical relationship with a motor-generator and an auxiliary electric system. Additionally, the powertrain includes a first switching device selectively transitionable between a first open state to electrically disconnect the first energy storage device from at least one of the motor-generator and the auxiliary electric system, and a first closed state to electrically connect the first energy storage device to at least one of the motor-generator and the auxiliary electric system. The motor-generator and the auxiliary electric system are operable regardless of the first switching device being in the first open and closed states.

Abstract translation: 动力总成包括电动发电机和辅助电气系统。 动力传动系还包括与电动发电机和辅助电气系统并联电连接的第一能量存储装置。 另外，动力系包括第一开关装置，其可选择性地在第一开启状态之间转换，以将第一能量存储装置与电动发电机和辅助电气系统中的至少一个电气断开，以及第一关闭状态以将第一能量 存储装置到电动发电机和辅助电气系统中的至少一个。 电动发电机和辅助电气系统可操作，而不管第一开关装置处于第一开启和关闭状态。