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公开(公告)号：US11201567B2
公开(公告)日：2021-12-14
申请号：US16605842
申请日：2018-04-17
Applicant: General Electric Company
Inventor： Changjin Liu , Fei Li , Tao Wu
IPC: H02P29/10 , G01R31/36 , H02M7/5387 , H02P29/024 , H02P29/032 , H02M1/32 , H02P27/06
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.
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公开(公告)号：US10591547B2
公开(公告)日：2020-03-17
申请号：US15669384
申请日：2017-08-04
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Tao Wu , Fei Li , Changjin Liu
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.
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