公开(公告)号：US20250112580A1

公开(公告)日：2025-04-03

申请号：US18476723

申请日：2023-09-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yilun Luo ,  Khorshed Mohammed Alam ,  Eric B. Gach ,  Chandra S. Namuduri ,  Rashmi Prasad ,  Mohammad F. Momen

IPC: H02P27/08 ,  B60L15/00 ,  H02M1/08 ,  H02M7/5395

Abstract: A slew rate controllable system for powering an electric machine. The system may include a plurality of power switches operable for converting a direct current (DC) input into an alternating current (AC) output suitable for electrically powering the electric machine. The system may include a gate drive system operable for controlling a slew rate associated with transitioning the switches between opened and closed states.

公开(公告)号：US20250096701A1

公开(公告)日：2025-03-20

申请号：US18467080

申请日：2023-09-14

Applicant: GM Global Technology Operations LLC

Inventor： Yilun Luo ,  Khorshed Mohammed Alam ,  Dhanya Sankaran ,  Muhammad Hussain Alvi ,  Junghoon Kim ,  Rashmi Prasad ,  Chandra S. Namuduri

IPC: H02M7/5387 ,  B60L50/51 ,  H02M1/00 ,  H02M1/44

Abstract: A vehicle includes a system for controller the vehicle. The vehicle includes a motor. The system includes an inverter, and a gate controller. The inverter has a switch for controlling current to the motor. The gate controller is configured to apply a gate current to the switch at a first on-current control level during a first switch-on stage of a turn-on operation of the switch, lower the gate current to a second on-current control level less than the first on-current control level during a second switch-on stage of the turn-on operation, and raise the gate current to a third on-current control level during a third switch-on stage of the turn-on operation, wherein the third on-current control level is greater than the second on-current control level.

公开(公告)号：US20250058662A1

公开(公告)日：2025-02-20

申请号：US18451517

申请日：2023-08-17

Applicant: GM Global Technology Operations LLC

Inventor： Chandra S. Namuduri ,  Muhammad Hussain Alvi ,  Rashmi Prasad ,  Khorshed Mohammed Alam ,  Junghoon Kim ,  Yilun Luo

IPC: B60L53/22 ,  H02M7/483 ,  H02M7/5387 ,  H02P21/22 ,  H02P27/06

Abstract: A vehicle includes a system for charging a battery of the vehicle. An electric motor couples to a charging station. a diode-clamped multi-level inverter and a processor. A diode-clamped multi-level inverter couples the electric motor to the battery and includes a first leg having a first set of switches and a first AC terminal coupled to the electric motor, a second leg having a second set of switches and a second AC terminal coupled to the electric motor and a third leg having a third set of switches and a third AC terminal coupled to the electric motor. The processor connects the third AC terminal to the charging station and control at least one of the first set of switches to control a first current through the first AC terminal and the second set of switches to control a second current through the second AC terminal to charge the battery.

公开(公告)号：US20250050759A1

公开(公告)日：2025-02-13

申请号：US18448376

申请日：2023-08-11

Applicant: GM Global Technology Operations LLC

Inventor： Chandra S. Namuduri ,  Muhammad Hussain Alvi ,  Rashmi Prasad ,  Khorshed Mohammed Alam ,  Junghoon Kim ,  Yilun Luo

IPC: B60L53/24 ,  B60L53/10 ,  B60L53/22 ,  H02M7/487

Abstract: A vehicle includes a system for charging a battery of the vehicle. The system includes an electric motor couplable to a charging station, a capacitor-clamped multi-level inverter, and a processor. The capacitor-clamped multi-level inverter is couples the electric motor to the battery and includes a first leg having a first set of switches and a first AC terminal coupled to the electric motor, a second leg having a second set of switches and a second AC terminal coupled to the electric motor and a third leg having a third set of switches and a third AC terminal coupled to the electric motor. The processor connects one of the third AC terminal and a neutral point of the electric motor to the charging station and control at least one of the first set of switches and the second set of switches to charge the battery through the electric motor.