公开(公告)号：US20200017039A1

公开(公告)日：2020-01-16

申请号：US16034091

申请日：2018-07-12

Applicant: Ford Global Technologies, LLC

Inventor： Silong Li ,  Wei Xu ,  Jiyao Wang ,  Michael W. Degner

IPC: B60R16/023 ,  H02P6/28 ,  H02P6/18 ,  H02P21/14 ,  B60L15/02 ,  B60L15/20

Abstract: A vehicle includes a controller programmed to, responsive to injecting a high frequency voltage signal to an electric machine, determine an estimated negative sequence current phase associated with an electric machine current, and responsive to a rotor of the electric machine being at a predetermined rotor position, inject a pulse torque command to the electric machine and observe a speed change of the electric machine to determine a cable sequence.

公开(公告)号：US11411516B2

公开(公告)日：2022-08-09

申请号：US16808681

申请日：2020-03-04

Applicant: Ford Global Technologies, LLC

Inventor： Silong Li ,  Jiyao Wang ,  Michael W. Degner

IPC: H02P6/17 ,  G01B7/30 ,  H02K11/33 ,  H02K11/21 ,  H02K7/00

Abstract: A vehicle includes an electric machine having a number of pole pairs, N, a position sensor having a number of pole pairs, M, that generates output indicative of a rotational position of the electric machine, and one or more controllers. The one or more controllers generate a remapped rotational position according to a product of the rotational position and L/N, generate a scaled position according to a product of the remapped rotational position and N/M, and command the electric machine to produce a specified torque or speed based on the scaled position. M is not equal to and not a factor of N, and L is a minimum common multiplier of N and M.

公开(公告)号：US20210281199A1

公开(公告)日：2021-09-09

申请号：US16808681

申请日：2020-03-04

Applicant: Ford Global Technologies, LLC

Inventor： Silong Li ,  Jiyao Wang ,  Michael W. Degner

IPC: H02P6/17 ,  G01B7/30 ,  H02K7/00 ,  H02K11/33 ,  H02K11/21

Abstract: A vehicle includes an electric machine having a number of pole pairs, N, a position sensor having a number of pole pairs, M, that generates output indicative of a rotational position of the electric machine, and one or more controllers. The one or more controllers generate a remapped rotational position according to a product of the rotational position and L/N, generate a scaled position according to a product of the remapped rotational position and N/M, and command the electric machine to produce a specified torque or speed based on the scaled position. M is not equal to and not a factor of N, and L is a minimum common multiplier of N and M.

公开(公告)号：US20210129655A1

公开(公告)日：2021-05-06

申请号：US16668154

申请日：2019-10-30

Applicant: Ford Global Technologies, LLC

Inventor： Jiyao Wang ,  Wei Xu ,  Silong Li

IPC: B60K6/445 ,  B60L3/00 ,  B60W10/08 ,  B60W10/26 ,  B60K6/365 ,  B60L15/20

Abstract: A vehicle power system includes a battery bus between a traction battery and voltage converter, a high-voltage bus between the voltage converter and an inverter, and a controller. The controller, responsive to a contactor between the traction battery and voltage converter opening, controls an engine to maintain a speed of a generator electrically coupled with the inverter within a predefined range, controls the voltage converter to drive a measured voltage of the battery bus toward a first commanded value based on a first difference between the first commanded value and measured voltage of the battery bus, and controls the generator to drive a measured voltage of the high-voltage bus toward a second commanded value different than the first commanded value based on the first difference and a second difference between the second commanded value and the measured voltage of the high-voltage bus.

公开(公告)号：US10723294B2

公开(公告)日：2020-07-28

申请号：US16034091

申请日：2018-07-12

Applicant: Ford Global Technologies, LLC

Inventor： Silong Li ,  Wei Xu ,  Jiyao Wang ,  Michael W. Degner

IPC: H02P6/28 ,  B60R16/023 ,  H02P6/18 ,  B60L15/02 ,  B60L15/20 ,  H02P21/14

Abstract: A vehicle includes a controller programmed to, responsive to injecting a high frequency voltage signal to an electric machine, determine an estimated negative sequence current phase associated with an electric machine current, and responsive to a rotor of the electric machine being at a predetermined rotor position, inject a pulse torque command to the electric machine and observe a speed change of the electric machine to determine a cable sequence.

公开(公告)号：US10523148B2

公开(公告)日：2019-12-31

申请号：US15974166

申请日：2018-05-08

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Silong Li ,  Wei Xu ,  Jiyao Wang

IPC: H02P27/06 ,  H02P25/18 ,  H02P25/022 ,  H02P25/22 ,  B60L50/51

Abstract: A vehicle includes a five-phase electric machine with open windings driven at each side by phase legs of an inverter. A controller monitors for open-circuit windings. In response to detecting an open-circuit winding above a predetermined speed threshold, the controller operates the inverter to drive the windings that are not open-circuited in a square configuration.

公开(公告)号：US11757147B2

公开(公告)日：2023-09-12

申请号：US17146802

申请日：2021-01-12

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Yang Xu ,  Jiyao Wang ,  Silong Li ,  Joseph Sherman Kimmel ,  Michael W. Degner

IPC: H01M10/637 ,  H02P27/12 ,  H02P21/22 ,  H01M10/615 ,  H01M10/625 ,  H01M8/04007 ,  H01M8/04858 ,  B60L58/27 ,  B60L50/60 ,  B60L50/70 ,  B60L58/34 ,  H01M8/04701

CPC classification number: H01M10/637 ,  B60L50/60 ,  B60L50/70 ,  B60L58/27 ,  B60L58/34 ,  H01M8/04037 ,  H01M8/04701 ,  H01M8/04902 ,  H01M10/615 ,  H01M10/625 ,  H02P21/22 ,  H02P27/12 ,  H01M2220/20 ,  H01M2250/20

Abstract: A vehicle includes an electric machine, a battery, an inverter, and a controller. The controller switches the inverter at a switching frequency selected to generate an AC current to heat the battery, adjusts a d-axis current of the electric machine to increase a battery heating power, and adjusts a q-axis current of the electric machine according to the adjusted d-axis current.

公开(公告)号：US11332001B2

公开(公告)日：2022-05-17

申请号：US16668154

申请日：2019-10-30

Applicant: Ford Global Technologies, LLC

Inventor： Jiyao Wang ,  Wei Xu ,  Silong Li

IPC: B60W10/26 ,  B60L3/00 ,  B60L15/20 ,  B60K6/445 ,  B60W10/08 ,  B60K6/365

Abstract: A vehicle power system includes a battery bus between a traction battery and voltage converter, a high-voltage bus between the voltage converter and an inverter, and a controller. The controller, responsive to a contactor between the traction battery and voltage converter opening, controls an engine to maintain a speed of a generator electrically coupled with the inverter within a predefined range, controls the voltage converter to drive a measured voltage of the battery bus toward a first commanded value based on a first difference between the first commanded value and measured voltage of the battery bus, and controls the generator to drive a measured voltage of the high-voltage bus toward a second commanded value different than the first commanded value based on the first difference and a second difference between the second commanded value and the measured voltage of the high-voltage bus.

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：US10536069B2

公开(公告)日：2020-01-14

申请号：US16009666

申请日：2018-06-15

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Jiyao Wang ,  Wei Xu ,  Silong Li

IPC: H02P1/00 ,  H02M1/08 ,  H02P27/08 ,  H02P29/50 ,  H02M1/12 ,  H02M7/5387 ,  H02M1/00 ,  B60L50/51

Abstract: A vehicle includes an electric machine operated by an inverter. The electric machine includes a gate driver configured to energize a switch of the inverter with a pulse width modulation (PWM) signal. The gate driver is configured to delay the PWM signal by a dependent amount that is a function of a magnitude of current of a lead of the electric machine. The delay is responsive to a polarity of the current being positive.