公开(公告)号：US10833622B2

公开(公告)日：2020-11-10

申请号：US15927227

申请日：2018-03-21

Applicant: Ford Global Technologies, LLC

Inventor： Silong Li ,  Wei Xu ,  Jiyao Wang ,  Yinghan Xu

IPC: H02P29/024 ,  H02P6/18 ,  H02P21/18 ,  B60W20/15 ,  H02H7/08 ,  B60W20/50 ,  H02P21/32

Abstract: In an electrified vehicle having a synchronous traction motor, an inverter is connected to stator windings by three power cables. If these cables are accidentally connected to the wrong windings, the resulting torque will not match the desired torque, and may even be in the wrong direction. To avoid this problem, a test is performed any time that the cables may have been unplugged and re-connected. The inverter is commanded to generate a rotating magnetic field while the rotor is held stationary, resulting in a positive and a negative response current. A relationship between a phase angle of the negative response current and the rotor position indicates which cables are connected to which windings. If the cables are incorrectly connected, the controller disables the motor and informs an operator which cables to swap to achieve correct connection.

公开(公告)号：US10525843B1

公开(公告)日：2020-01-07

申请号：US16012136

申请日：2018-06-19

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Jiyao Wang ,  Wei Xu ,  Yinghan Xu ,  Silong Li

IPC: B60L53/22 ,  B60L15/00 ,  B60L50/51 ,  B60L53/14 ,  B60L3/00

Abstract: An electric drive system for a vehicle includes an electric machine having first conductors arranged in slots of a stator to form phase windings and a second conductor arranged in the slots to form a secondary winding that produces a voltage indicative of a common mode voltage caused by voltages applied to the phase windings. The voltage can be used to supply power to electronic components and for diagnosis and control of the electric machine and an associated inverter.

公开(公告)号：US20190296679A1

公开(公告)日：2019-09-26

申请号：US15927227

申请日：2018-03-21

Applicant: Ford Global Technologies, LLC

Inventor： Silong Li ,  Wei Xu ,  Jiyao Wang ,  Yinghan Xu

IPC: H02P29/024 ,  H02P6/18 ,  H02P21/18 ,  H02P21/32 ,  H02H7/08 ,  B60W20/50 ,  B60W20/15

Abstract: In an electrified vehicle having a synchronous traction motor, an inverter is connected to stator windings by three power cables. If these cables are accidentally connected to the wrong windings, the resulting torque will not match the desired torque, and may even be in the wrong direction. To avoid this problem, a test is performed any time that the cables may have been unplugged and re-connected. The inverter is commanded to generate a rotating magnetic field while the rotor is held stationary, resulting in a positive and a negative response current. A relationship between a phase angle of the negative response current and the rotor position indicates which cables are connected to which windings. If the cables are incorrectly connected, the controller disables the motor and informs an operator which cables to swap to achieve correct connection.