-
公开(公告)号：US20230420763A1
公开(公告)日：2023-12-28
申请号：US17847740
申请日：2022-06-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Neeraj S. Shidore , Chandra S. Namuduri , Lei Hao , Shuonan Xu , Suresh Gopalakrishnan , Satish P. Ketkar , Daniel Robert Tylutki
IPC: H01M10/615 , H02M1/00 , H02J7/00 , H02M7/5387 , H02M3/158 , H01M10/63 , H01M10/48 , H01M10/625 , H01M10/6571 , G01R31/382
CPC classification number: H01M10/615 , H02M1/0009 , H02J7/0068 , H02M7/53871 , H02M3/158 , H01M10/63 , H01M10/48 , H01M10/625 , H01M10/6571 , G01R31/382 , H01M2220/20
Abstract: A device for thermal control of a battery system includes a heating control module electrically connected to the battery system and a conversion device configured to control power output from the battery system. The heating control module is configured to measure a current through the conversion device, the measured current provided by the battery system of a vehicle during vehicle operation or provided by an energy source during vehicle charging. The heating control module is also configured to control the conversion device to generate an alternating current (AC) heating current using the measured current, and apply the AC heating current to the battery system to heat the battery system to a desired temperature.
-
公开(公告)号：US20230378797A1
公开(公告)日：2023-11-23
申请号：US17746139
申请日：2022-05-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Lei Hao , Suresh Gopalakrishnan , Chandra S. Namuduri , Dongxu Li
IPC: H02J7/02 , H02M7/217 , H02M7/5387 , B60R16/033
CPC classification number: H02J7/02 , H02M7/217 , H02M7/53871 , B60R16/033 , H02J2207/20
Abstract: A system in a vehicle includes a first set of one or more windings and a second set of one or more windings electrically isolated from the first set of one or more windings. The system also includes a first inverter coupled to a battery of the vehicle and the first set of one or more windings and a second inverter electrically separated from the first inverter and coupled to the second set of one or more windings. A universal charger includes an alternative current (AC) charging port and a direct current (DC) charging port. A switch is controlled to close to connect the second inverter to the battery.
-
公开(公告)号：US20230369879A1
公开(公告)日：2023-11-16
申请号：US17743737
申请日：2022-05-13
Applicant: GM Global Technology Operations LLC
Inventor： Rashmi Prasad , Chandra S. Namuduri , Avoki M. Omekanda
Abstract: Electrical energy is transferred between an on-vehicle DC power source and an off-vehicle DC power source by controlling conduction of the phase legs of a power inverter to operatively configure the power inverter and the stator phase windings of a traction motor as a switched-mode power converter including the at least one phase winding and at least one switch of one of the phase legs.
-
公开(公告)号：US20230299702A1
公开(公告)日：2023-09-21
申请号：US17694865
申请日：2022-03-15
Applicant: GM Global Technology Operations LLC
Inventor： Lei Hao , Suresh Gopalakrishnan , Chandra S. Namuduri , Dongxu Li
CPC classification number: H02P25/18 , H02M7/797 , H02K3/28 , H02J7/02 , H02P27/08 , B60L50/50 , B60L53/16 , B60L2210/44
Abstract: An electric machine includes: a first stator winding including first and second stator winding portions; a second stator winding including third and fourth stator winding portions; a third stator winding including fifth and sixth stator winding portions, where inputs of the stator windings are configured to be connected to phases, respectively, of an inverter; and switches connected between the stator winding portions and outputs of a power source.
-
公开(公告)号：US20230286403A1
公开(公告)日：2023-09-14
申请号：US17694196
申请日：2022-03-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Suresh GOPALAKRISHNAN , Chandra S. Namuduri , Muhammad Hussain Alvi
CPC classification number: B60L53/62 , B60L53/16 , G01R15/20 , G01R19/16566 , G01R31/52 , H02J7/0029 , H02J7/0042 , H02J7/0047
Abstract: A charging system for an electric vehicle comprises a charger connector configured to connect to a charge port on the electric vehicle and includes a housing, a first conductor passing through the housing, a second conductor passing through the housing, and a current sensor configured to sense current flowing through at least one of the first conductor and the second conductor to a battery system of the electric vehicle. A charger-side controller includes an arc fault detection module configured to selectively identify a DC arc fault in response to measured current sensed by the current sensor and to stop charging the electric vehicle in response to detecting the DC arc fault.
-
Patent Agency Ranking
公开(公告)号：US20230261469A1
公开(公告)日：2023-08-17
申请号：US17669498
申请日：2022-02-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Venkata Prasad ATLURI , Ian J. Sutherland , Paul M. Najt , Chandra S. Namuduri
CPC classification number: H02J3/007 , H02J7/0013 , H02J7/0047 , H02J7/0063 , H02J7/35 , H02J3/381 , B60L53/00 , H01M10/441 , H01M16/006 , H02J2300/24 , H02J2300/30 , H02J2207/20 , H01M2220/10 , H01M2220/20
Abstract: A system includes a battery system including a plurality of batteries and configured to be selectively coupled to and charged by a renewable energy source and selectively coupled to and charged by a power grid. The system further includes a DC bus shared by a plurality of loads and an energy management system connected between the battery system and the plurality of loads. The energy management system is configured to selectively connect individual ones of the plurality of batteries to at least one of the plurality of loads via the DC bus, selectively connect the battery system to the power grid and disconnect the battery system from the power grid, and selectively connect at least one of the plurality of loads directly to the power grid.
-
公开(公告)号：US20230226915A1
公开(公告)日：2023-07-20
申请号：US17578950
申请日：2022-01-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Muhammad Hussain ALVI , Chandra S. Namuduri , Renato Amorim Torres
CPC classification number: B60L3/0046 , H02J7/00712 , H02J7/0031 , H02M7/537 , B60L2210/10
Abstract: A power control system includes a power inverter comprising a first side, a second side, and a plurality of power switches. The second side is configured to connect to an electric machine. A solid state fuse includes a power switch including a first terminal in communication with the first terminal of a rechargeable energy storage system (RESS) of the electric vehicle and a second terminal in communication with the first side of the power inverter. A DC-DC converter is configured to convert a first voltage output by the RESS of the electric vehicle to a second voltage. One or more sensors configured to sense one or more operating parameters of the RESS. A fuse controller is configured to receive power from the DC-DC converter, to communicate with the one or more sensors and to cause the power switch to selectively change state in response to changes in the one or more operating parameters.
-
公开(公告)号：US20230198285A1
公开(公告)日：2023-06-22
申请号：US17557357
申请日：2021-12-21
Applicant: GM Global Technology Operations LLC
Inventor： Chandra S. Namuduri , Muhammad Hussain Alvi , Suresh Gopalakrishnan
CPC classification number: H02J7/345 , H02J7/0063 , H02J7/00711 , H02J7/00712 , H02J2300/24
Abstract: A power control system for a battery system includes a resistor including a first terminal and a second terminal. A normally closed transistor includes a first terminal, a second terminal and a control terminal. The first terminal of the transistor is connected to a second terminal of the resistor and the second terminal of the transistor is connected to a second terminal of the battery system. A capacitor includes a first terminal connected to the first terminal of the resistor and a second terminal connected to the second terminal of the battery system. A power inverter includes a first terminal connected to the first terminal of the resistor, a second terminal connected to the second terminal of the battery system and an output connected to a load.
-
公开(公告)号：US20230168284A1
公开(公告)日：2023-06-01
申请号：US17540081
申请日：2021-12-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Muhammad Hussain Alvi , Chandra S. Namuduri , Rashmi Prasad , Renato Amorim Torres
CPC classification number: G01R15/16 , B60L58/10 , B60L53/305 , B60L2210/40
Abstract: A detection system for a capacitor of a power inverter of an electric vehicle includes a protection circuit including a current sensor and a power switch having a first terminal in communication with a battery system of the electric vehicle. The protection circuit is configured to selectively generate a pulse and to sense a measured current flowing through the power switch. A voltage sensor configured to sense a measured voltage across the capacitor. A controller in communication with the voltage sensor and the protection circuit is configured to estimate a capacitance value of the capacitor based on the measured current and the measured voltage.
-
公开(公告)号：US11569745B2
公开(公告)日：2023-01-31
申请号：US17208157
申请日：2021-03-22
Applicant: GM Global Technology Operations LLC
Inventor： Rashmi Prasad , Chandra S. Namuduri
IPC: H02M3/158 , H02P27/08 , B60L53/24 , H02M7/5387
Abstract: An example electrical system is disclosed. The electrical system can include a rechargeable energy storage system (RESS) and a power inverter connected to the RESS. The power inverter can be configured to provide electrical power to a traction motor. The electrical system can include a plurality of machine windings connected between the power inverter and a switch. The switch can be configured to transition between a closed state to allow current flow from an off-board power source through the plurality of machine windings to the RESS and an open state to prevent current flow between the off-board power source and the plurality of machine windings.
-
-
-
-
-
-
-
-
-
Search Results
389
records
(took 0.041 seconds)
