公开(公告)号：US11349162B2

公开(公告)日：2022-05-31

申请号：US16743441

申请日：2020-01-15

Applicant: Ford Global Technologies, LLC

Inventor： Baoming Ge ,  Lihua Chen ,  Boris Curuvija ,  Fan Xu

IPC: H01M10/63 ,  H01M10/48 ,  H01M10/615 ,  H01M10/625 ,  B60L50/64 ,  B60L58/27 ,  H01M10/6571 ,  H02K7/00

Abstract: A vehicle power system includes a traction battery, an electric machine configured to receive power from the traction battery, switching circuitry connected between the traction battery and electric machine, and including pairs of switches connected in parallel, and a capacitor connected with and between the pairs such that the capacitor shares a common terminal with each of the switches of the pairs, and a controller configured to responsive to a temperature of the traction battery being less than a first threshold, activate the switches of each of the pairs in complementary fashion at a switching frequency corresponding to a resonant frequency defined by a capacitance of the capacitor and an inductance of the traction battery to cause AC current to circulate between the traction battery and switching circuitry to generate heat within the traction battery, and responsive to the temperature exceeding a second threshold, deactivate the switches.

公开(公告)号：US11307225B2

公开(公告)日：2022-04-19

申请号：US16139733

申请日：2018-09-24

Applicant: Ford Global Technologies, LLC

Inventor： Lihua Chen ,  Boris Curuvija ,  Baoming Ge

IPC: G01R19/165 ,  H02M3/335

Abstract: A vehicle electric drive includes a controller programmed to operate a power converter to boost voltage from a battery for a DC bus and to limit voltage output from the power converter to a predefined maximum voltage value that varies with temperature of coolant used to cool the power converter.

公开(公告)号：US20220068542A1

公开(公告)日：2022-03-03

申请号：US17008023

申请日：2020-08-31

Applicant: Ford Global Technologies, LLC

Inventor： Baoming Ge ,  Lihua Chen ,  Serdar Hakki Yonak

IPC: H01F27/24 ,  H01F27/28 ,  B60L53/20

Abstract: An inductor includes a pair of core portions having tapered legs and windings wound around the tapered legs. Each of the core portions are arranged adjacent to each other such that the tapered legs define a gap between the core portions that extends diagonally from one end of the inductor towards another end of the inductor relative to outer surfaces of the inductor.

公开(公告)号：US11040632B2

公开(公告)日：2021-06-22

申请号：US15997528

申请日：2018-06-04

Applicant: Ford Global Technologies, LLC

Inventor： Baoming Ge ,  Lihua Chen

IPC: H02M1/32 ,  H02M3/156 ,  H02P27/06 ,  B60L53/22 ,  H02M3/158 ,  H01L29/16

Abstract: An interleaved DC-DC converter includes a non-gapped coupled inductor with first, second, and third windings. The converter also includes first, second, and third legs in parallel. The first leg has silicon carbide or silicon nitride switches, and the second and third legs have silicon switches. A controller modulates the switches of the first leg at a frequency greater than a frequency of the switches of the second and third legs.

公开(公告)号：US20210013878A1

公开(公告)日：2021-01-14

申请号：US16507883

申请日：2019-07-10

Applicant: Ford Global Technologies, LLC

Inventor： Yantao Song ,  Baoming Ge ,  Lihua Chen ,  Serdar Hakki Yonak

IPC: H03K17/082 ,  H02M7/5387 ,  H02P27/08 ,  H02P9/30 ,  H02M1/08 ,  B60L50/51

Abstract: A vehicle powertrain has a traction battery, an electric machine, a power converter including a pair of series connected switches defining a phase leg for the electric machine, and a controller. The controller drives the switches with respective pulse width modulated signals to transfer power from the traction battery to the electric machine. Each of the respective pulse width modulated signals defines a low state and a high state. The controller further, responsive to a current flowing through one of the switches exceeding a predetermined threshold and the pulse width modulated signal for the other of the switches having the high state, stops driving the switches.

公开(公告)号：US10790763B2

公开(公告)日：2020-09-29

申请号：US16005937

申请日：2018-06-12

Applicant: Ford Global Technologies, LLC

Inventor： Baoming Ge ,  Lihua Chen

IPC: H02M3/155 ,  H02M7/483 ,  B60L50/51 ,  H02M3/156 ,  H02M3/158 ,  H02M3/157

Abstract: A system includes a bus, and a variable voltage converter (VVC) having a switch in series with a capacitor, and an inductor in parallel with the capacitor and switch, and configured such that operation of the switch in boost mode over a duty cycle range from 0 to less than 0.5 results in a corresponding voltage output to the bus from 0 to a maximum of the VVC.

公开(公告)号：US10737575B2

公开(公告)日：2020-08-11

申请号：US15820771

申请日：2017-11-22

Applicant: Ford Global Technologies, LLC

Inventor： Petros Taskas ,  Lihua Chen ,  Shuitao Yang ,  Fan Xu ,  Mohammed Khorshed Alam ,  Baoming Ge

IPC: B60L3/00 ,  H02M7/537 ,  B60L3/12 ,  B60L1/00 ,  H02M7/5387 ,  H02M1/32 ,  H02M1/00

Abstract: A computer includes a processor; and a memory. The memory stores instructions executable by the processor to determine, based on a measurement performed in a vehicle, that a parameter of a power device is outside of a predetermined range; and actuate components in the vehicle to heat the power device.

公开(公告)号：US10707771B1

公开(公告)日：2020-07-07

申请号：US16270270

申请日：2019-02-07

Applicant: Ford Global Technologies, LLC

Inventor： Lihua Chen ,  Fan Wang ,  Fan Xu ,  Boris Curuvija ,  Baoming Ge ,  Shahram Zarei

IPC: H02M7/00 ,  H05K7/20 ,  H05K5/02

Abstract: A traction inverter system includes a capacitor module, a power module, a cold plate between and in contact with the modules, and an end plate defining an inlet and outlet. The modules and plates define a bore spanning the modules and plates, and a passageway in fluid communication with the inlet and outlet. The traction inverter system also includes a mechanical fastener occupying the bore, spanning the modules and plates, and clamping the modules and plates together.

公开(公告)号：US10581361B2

公开(公告)日：2020-03-03

申请号：US15407296

申请日：2017-01-17

Applicant: Ford Global Technologies, LLC

Inventor： Lihua Chen ,  Baoming Ge ,  Shuitao Yang ,  Shahram Zarei

IPC: H02M7/537 ,  H02P25/22 ,  H02P29/50 ,  H02P27/08

Abstract: A vehicle may include an electric machine including windings having a nonzero phase offset. The vehicle may further include first and second inverters configured to drive the electric machine as a result of toggling of switches. The switches may be toggled according to respective pulse width modulation (PWM) signals. One or more gate drivers may be configured to generate the PWM signals. The PWM signals may be based on fundamental waveforms having a phase shift that is based on the nonzero phase offset of the electric machine.

公开(公告)号：US20190267986A1

公开(公告)日：2019-08-29

申请号：US15904381

申请日：2018-02-25

Applicant: Ford Global Technologies, LLC

Inventor： Fan Xu ,  Lihua Chen ,  Baoming Ge ,  Yan Zhou ,  Shuitao Yang

IPC: H03K17/16 ,  B60L11/18 ,  H02P27/06 ,  H02M1/08

Abstract: A power electronics module is arranged to pass power between a traction battery and electric machine, and includes a pair of parallel power transistors and a differential mode choke arranged to, responsive to current flow through the choke, drive gate voltages of the power transistors apart to reduce differences in current magnitudes output by the transistors.