公开(公告)号：US20170288423A1

公开(公告)日：2017-10-05

申请号：US15473754

申请日：2017-03-30

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Tao WU ,  Fei LI ,  Pengcheng ZHU ,  Changjin LIU

IPC: H02J7/00

CPC classification number: H02J7/0019 ,  H02J7/0013 ,  H02J7/007

Abstract: The present disclosure relates to a charging device for charging a battery back, comprising: a plurality of charging assemblies for charging a plurality of battery cells connected electrically in series in the battery back, wherein the plurality of charging assemblies are configured to charge a first set of the plurality of battery cells in a first time period and a second set of the plurality of battery cells in a second time period, any two of the plurality of battery cells that neighbor with each other are from different sets of the plurality of battery cells, and each of the plurality of charging assemblies comprises: an AC/DC converter for converting an inputted AC voltage to a first DC voltage; and a DC/DC converter for converting the first DC voltage to a second DC voltage for charging the battery cell. The present disclosure further relates to a charging system and method.

公开(公告)号：US20200076326A1

公开(公告)日：2020-03-05

申请号：US16605842

申请日：2018-04-17

Applicant: General Electric Company

Inventor： Changjin LIU ,  Fei Li ,  Tao Wu

IPC: H02M7/5387 ,  H02P27/06 ,  H02P29/024 ,  H02P29/10 ,  H02P29/032 ,  G01R31/36 ,  H02M1/32

Abstract: The present invention discloses a vehicle. The vehicle includes an AC electric machine configured to generate traction driving force, a DC bus configured to provide a DC voltage, an inverter, and a controller. The inverter is coupled with the DC bus and configured to convert the DC voltage from the DC bus to an AC voltage to drive the AC electric machine, and the inverter includes a plurality of transistors. The controller is configured to control the inverter to maintain the vehicle to run in a fault-tolerant mode when an open circuit fault occurs in one of the transistors in the inverter during running of the vehicle. The present invention further discloses a control method of the vehicle and a system.

公开(公告)号：US20180045783A1

公开(公告)日：2018-02-15

申请号：US15669384

申请日：2017-08-04

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Tao WU ,  Fei LI ,  Changjin LIU

IPC: G01R31/327 ,  H02H1/00 ,  H02H7/08

Abstract: A solid state circuit breaker, including a solid state switch, an inductor connected with the solid state switch in series and a fault detection circuit. The solid state switch has a gate electrode, a source electrode and a drain electrode. The fault detection circuit is used for detecting health status of the solid state switch and identifying fault type of the solid state switch in a condition that a fault occurs on the solid state switch based on one or more of a measured voltage between the source electrode and the drain electrode of the solid state switch, a measured voltage of two terminals of the inductor, a reference voltage and a switching control signal provided to the gate electrode of the solid state switch. A motor driving system having the solid state circuit breaker is further disclosed.