公开(公告)号：US20250110178A1

公开(公告)日：2025-04-03

申请号：US18480129

申请日：2023-10-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jun-mo Kang ,  Hanho Yun

IPC: G01R31/367 ,  G01R31/364 ,  G01R31/3842 ,  G01R31/387 ,  H01M10/0525 ,  H01M10/42

Abstract: An electric vehicle (EV), and systems and methods are introduced in aspects of the disclosure that use a battery management system (BMS) for one or more Lithium ion (Li+) battery cells. The BMS includes an apparatus coupled with outer terminals of the one or more Li+ battery cells and configured to estimate an open circuit voltage (VOC) across the Li+ battery cells. The apparatus further includes a memory, at least one processor coupled with the memory. The at least one processor is configured, when executing code stored in the memory, to produce a state of charge (SOC) observer, the SOC observer including a hysteresis model to account for hysteresis in the one or more Li+ battery cells.

公开(公告)号：US12240345B1

公开(公告)日：2025-03-04

申请号：US18446569

申请日：2023-08-09

Applicant: GM Global Technology Operations LLC

Inventor： Shuonan Xu ,  Hanho Yun ,  Lei Hao

IPC: B60L53/22 ,  B60L58/18 ,  H01M10/44 ,  H01M10/46 ,  H02M3/158

Abstract: A system for controlling power transfer includes a direct current (DC)-DC converter connected to a charging bus and selectively connected to a propulsion battery assembly and a supplemental battery assembly, the propulsion battery assembly having a first chemistry and configured to supply power to an electric motor of a vehicle, the supplemental battery assembly having a second chemistry that is different than the first chemistry. The system also includes a charger connected to the charging bus at a first side of the DC-DC converter, the charging bus connected to a load at a second side of the DC-DC converter, and a controller configured to control the DC-DC converter to perform a charging operation.

公开(公告)号：US20240416766A1

公开(公告)日：2024-12-19

申请号：US18333917

申请日：2023-06-13

Applicant: GM Global Technology Operations LLC

Inventor： Shuonan Xu ,  Hanho Yun ,  Jun-mo Kang

IPC: B60L50/60 ,  B60L58/13 ,  B60L58/18

Abstract: In one exemplary embodiment, a system for controlling power transfer includes a propulsion battery assembly configured to supply power to an electric motor of a vehicle, the propulsion battery assembly having a first chemistry, and a supplemental battery assembly selectively connected to the propulsion battery assembly, the supplemental battery assembly having a second chemistry that is different than the first chemistry. The system also includes a controller configured to selectively connect the supplemental battery assembly to perform at least one of providing electrical charge to the propulsion battery assembly, and supplying electrical power to the electric motor.

公开(公告)号：US20240367551A1

公开(公告)日：2024-11-07

申请号：US18310725

申请日：2023-05-02

Applicant: GM Global Technology Operations LLC

Inventor： Shuonan Xu ,  Lei Hao ,  Neeraj S. Shidore ,  Hanho Yun

IPC: B60L58/27 ,  B60L50/64 ,  H01M10/615

Abstract: A vehicle and a system performing a method of heating a battery of the vehicle. The vehicle includes a battery having a first cell having a first cell type and a second cell having a second cell type, a DC/DC converter having a first side and a second side, and a processor that controls flow of current. The first cell is connected to a first side of a DC/DC converter and the second cell is connected to the second side of the DC/DC converter. A first current is flowed between the first cell and the second through the DC/DC converter to heat the first cell and the second cell during a first heating phase. A second current is flowed between the second cell and the DC/DC converter to heat the second cell during a second heating phase.

公开(公告)号：US20240097263A1

公开(公告)日：2024-03-21

申请号：US17933649

申请日：2022-09-20

Applicant: GM Global Technology Operations LLC

Inventor： Wonhee Michael Kim ,  Hanho Yun

IPC: H01M50/264 ,  H01M50/204 ,  H01M50/291

CPC classification number: H01M50/264 ,  H01M50/204 ,  H01M50/291 ,  H01M2220/20

Abstract: A battery includes a housing defining a sealed chamber, a battery pack positioned within the sealed chamber, and a shape memory alloy member that is adapted to axially compress the volume within the sealed chamber to pressurize the sealed chamber to an optimal pressure, and to automatically allow axial expansion of the volume of the sealed chamber in response to an increase of the pressure within the sealed chamber to maintain the pressure within the sealed chamber at the optimal pressure.

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：US09689321B2

公开(公告)日：2017-06-27

申请号：US14735653

申请日：2015-06-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jun-Mo Kang ,  Orgun A. Guralp ,  Sai S. V. Rajagopalan ,  Hanho Yun ,  Chen-Fang Chang ,  Paul M. Najt

IPC: F02D29/02 ,  F02D35/02 ,  F02P5/153 ,  F02P5/15 ,  F02P5/00

CPC classification number: F02D35/028 ,  F02D29/02 ,  F02D35/023 ,  F02D35/024 ,  F02P5/00 ,  F02P5/1512 ,  F02P5/153

Abstract: An engine assembly includes an internal combustion engine with an engine block having at least one cylinder and at least one piston moveable within the at least one cylinder. A crankshaft is moveable to define a plurality of crank angles (CA) from a bore axis defined by the cylinder to a crank axis defined by the crankshaft. A controller is operatively connected to the internal combustion engine and configured to receive a torque request (TR). The controller is programmed to determine a desired combustion phasing (CAd) for controlling a torque output of the internal combustion engine. The desired combustion phasing is based at least partially on the torque request (TR) and a pressure-volume (PV) diagram of the at least one cylinder.

公开(公告)号：US09617930B2

公开(公告)日：2017-04-11

申请号：US14256478

申请日：2014-04-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jun-Mo Kang ,  Orgun A. Guralp ,  Hanho Yun ,  Sai S. V. Rajagopalan ,  Chen-Fang Chang ,  Paul M. Najt

IPC: F02D41/00 ,  F02D41/30

CPC classification number: F02D41/0002 ,  F02D41/0007 ,  F02D41/006 ,  F02D41/3035 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/0406 ,  F02D2200/703 ,  Y02T10/144 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/47

Abstract: The method can control a powertrain in order to maintain the charge temperature at a desired value regardless of exhaust manifold pressure or altitude. The method includes the following steps: (a) receiving a torque request; (b) determining a desired air charge based, a least in part, on the torque request; (c) determining an actual air charge based, at least in part, on input signals from a manifold absolute pressure (MAP) sensor and a mass airflow (MAF) sensor; (d) adjusting an intake valve timing of the intake valve such that the actual air charge is equal to a desired air charge, and (e) adjusting throttle position and actuator positions of boosting devices such that the actual intake manifold pressure is equal to the desired intake manifold pressure.

公开(公告)号：US20250020723A1

公开(公告)日：2025-01-16

申请号：US18350484

申请日：2023-07-11

Applicant: GM Global Technology Operations LLC

Inventor： Jun-mo Kang ,  Hanho Yun ,  Insu Chang

IPC: G01R31/367 ,  B60L50/60 ,  B60L58/12 ,  G01R31/3835

Abstract: A battery monitoring system for a vehicle includes a processor and a memory. The memory stores instructions for causing the processor to estimate a state of charge of a battery based on a current cell pressure of the battery while the state of charge of the battery is below a threshold state of charge and to estimate a state of charge of the battery based on a voltage output by the battery while the state of charge of the battery is greater than or equal to the threshold state of charge.

公开(公告)号：US20230391460A1

公开(公告)日：2023-12-07

申请号：US17834423

申请日：2022-06-07

Applicant: GM Global Technology Operations LLC

Inventor： Venkata Prasad Atluri ,  Madhusudan Raghavan ,  Shuonan Xu ,  Hanho Yun

IPC: B64D27/24 ,  B64D35/08 ,  B64D35/04 ,  B60L53/00 ,  B60L58/12 ,  B60L50/60

CPC classification number: B64D27/24 ,  B64D35/08 ,  B64D35/04 ,  B60L53/00 ,  B60L58/12 ,  B60L50/66 ,  B64D2221/00 ,  B60L2200/10 ,  B60L2210/14

Abstract: A system in an electric vertical take-off and landing (eVTOL) aircraft includes two or more subsystems. Each subsystem includes an energy storage systems (ESS). Each ESS is coupled to one or more motors that actuate one or more rotors of the eVTOL aircraft and includes one or more energy sub-packs and one or more power sub-packs. The one or more power sub-packs supply more power than the one or more energy sub-packs and the one or more energy sub-packs supply consistent power for a longer duration than the one or more power sub-packs. The system also includes one or more inter-subsystem switches to electrically isolate or connect adjacent ones of the two or more subsystems.