公开(公告)号：US10340811B2

公开(公告)日：2019-07-02

申请号：US15361898

申请日：2016-11-28

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Zhuxian Xu ,  Chingchi Chen ,  Michael W. Degner

IPC: H01L23/495 ,  H02M7/00 ,  H01L23/31 ,  H01L27/02 ,  H01L27/06 ,  H02M7/537

Abstract: A selectable increase in the common source inductance is obtained by a layout for a power module used for a half-bridge phase leg in an inverter for an electrically-driven vehicle. The power module comprises a pair of transistor dies connected to positive, negative, and AC conductive tracks for carrying bridge currents. The module includes a pair of gate drive pins and a pair of gate drive coils connecting a respective pin and die. The gate drive coils are disposed in a region between the positive and negative tracks containing a flux generated by the currents having a locally greatest rate of change. The coils may preferably be comprised of traces on an auxiliary printed circuit board incorporated in the module. The gate drive pins can be on the gate side or the emitter side of the transistor dies.

公开(公告)号：US10270364B2

公开(公告)日：2019-04-23

申请号：US14601293

申请日：2015-01-21

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Michael W. Degner ,  Chingchi Chen ,  Jun Kikuchi

IPC: H02M1/38 ,  H02M7/5387 ,  H02P9/10

Abstract: A power converter receives a DC supply voltage across a phase leg. The phase leg comprises an upper switching device and a lower switching device coupled across the DC link, wherein a junction between the upper and lower switching devices is configured to be coupled to a load. A gate driver is coupled to the phase leg activating the respective upper switching device according to an upper gate signal and activating the respective lower switching device according to a lower gate signal in response to a pulse-width modulation (PWM) control signal at a PWM frequency. The gate driver shuffles among a plurality of alternate paired sets of dead-time inserted signals. Each paired set of dead-time inserted signals corresponds to a different distortion of a current flowing in the load, so that overall distortion is dispersed.

公开(公告)号：US20190103795A1

公开(公告)日：2019-04-04

申请号：US15720754

申请日：2017-09-29

Applicant: Ford Global Technologies, LLC

Inventor： Feng Liang ,  Lusu Guo ,  Michael W. Degner ,  Wei Wu ,  Chun Tang

IPC: H02K23/04 ,  H02K1/17 ,  H02K1/12 ,  H02K23/42 ,  H02K11/22

Abstract: A permanent magnet machine includes a rotor and an irregular polyhedron shaped magnet assembly. The rotor may define at least one magnet opening and may be configured to rotate within a circular opening defined by a stator. The irregular polyhedron shaped magnet assembly may be disposed in the magnet opening and may define a magnetization direction, wherein a height along the magnetization direction and perpendicular with a lamination plane of the rotor is greater at both ends than at a central portion disposed therebetween.

公开(公告)号：US20180262069A1

公开(公告)日：2018-09-13

申请号：US15451550

申请日：2017-03-07

Applicant: Ford Global Technologies, LLC

Inventor： Feng Liang ,  Leyi Zhu ,  Lusu Guo ,  Michael W. Degner

IPC: H02K1/27 ,  H02K21/14

CPC classification number: H02K1/2766

Abstract: An electric machine includes a unitary, single material substrate defining a rotor lamination including a first region having a predefined magnetic permeability. The rotor lamination includes an arc-shaped second region having a magnetic permeability less than the first region. The second region is oriented such that it impedes flux associated with magnets contained by the first region and perpendicular to quadrature flux field lines associated with the magnets.

公开(公告)号：US20180109155A1

公开(公告)日：2018-04-19

申请号：US15292191

申请日：2016-10-13

Applicant: Ford Global Technologies, LLC

Inventor： Alfredo R. Munoz ,  Feng Liang ,  Michael W. Degner

IPC: H02K3/12 ,  H02K1/14 ,  H02K1/27 ,  H02K3/30

CPC classification number: H02K3/12 ,  H02K1/146 ,  H02K1/165 ,  H02K1/2706 ,  H02K1/2766 ,  H02K3/30

Abstract: An electric machine may include a rotor. The electric machine may include a stator surrounding the rotor having teeth defining slots having at least two cross-sectional areas housing windings having uniform cross-sectional areas that fill each of the cross-sectional areas of the slots to substantially similar proportions relative to other slots such that slots housing windings having different phases have different cross-sectional areas than slots housing windings having same phases.

公开(公告)号：US20180063989A1

公开(公告)日：2018-03-01

申请号：US15244410

申请日：2016-08-23

Applicant: Ford Global Technologies, LLC

Inventor： Guangyin Lei ,  Michael W. Degner ,  Edward Chan-Jiun Jih

IPC: H05K7/20 ,  H01L23/367 ,  H01L23/467 ,  H01L23/473 ,  H01L21/48

CPC classification number: H05K7/2089 ,  H01L21/4882 ,  H01L23/3675 ,  H01L23/467 ,  H01L23/473 ,  H01L25/07 ,  H05K7/20127 ,  H05K7/20272 ,  H05K7/20409 ,  H05K7/20927

Abstract: A vehicle power system may include a power module assembly having a plurality of alternating heatsinks and phase legs arranged in a deck. Each of the phase legs includes a semiconductor switch in contact with a dielectric layer. The dielectric layer is sandwiched between the switch and one of the heatsinks such that heat generated by the switch is transferred to the heatsink via the dielectric. At least one of the heatsinks may define a coolant channel. The coolant channel may be U-shaped. The coolant channel may have inlet and outlet regions. The inlet region may be opposite the outlet region. The coolant channel may have a divider to segregate ingress and egress coolant paths. The coolant channel may have obstructions to form a tortuous path. The obstructions may be wavy fins.

公开(公告)号：US20180062456A1

公开(公告)日：2018-03-01

申请号：US15254206

申请日：2016-09-01

Applicant: Ford Global Technologies, LLC

Inventor： Myung Ki Sung ,  Edward Chan-Jiun Jih ,  Michael W. Degner

IPC: H02K1/06 ,  H02K9/19 ,  H02K15/02 ,  B60L11/18

CPC classification number: H02K1/06 ,  B60L50/51 ,  H02K1/12 ,  H02K7/006 ,  H02K9/19 ,  H02K15/02

Abstract: A vehicle powertrain includes a stator defining a circular opening having an inner diameter, and a rotor to rotate within the circular opening such that a gap is formed between a rotor surface and the stator at the inner diameter. The powertrain further includes a repellant, coated on the stator and the rotor surface, to control fluid flow in the gap.

公开(公告)号：US09902280B2

公开(公告)日：2018-02-27

申请号：US14996871

申请日：2016-01-15

Applicant: Ford Global Technologies, LLC

Inventor： Allan Roy Gale ,  Paul Theodore Momcilovich ,  Michael W. Degner

IPC: G05B19/00 ,  B60L11/18 ,  B60L3/00 ,  B60L3/04 ,  H02J7/00

CPC classification number: B60L11/1838 ,  B60L3/0046 ,  B60L3/04 ,  B60L11/1816 ,  B60L11/1846 ,  B60L2210/30 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/80 ,  H02J7/0004 ,  H02J7/0027 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y02T90/169 ,  Y04S30/14

Abstract: A charge station includes a controller that initiates charging of a battery of a vehicle and notifies the vehicle in response to an electrical parameter measured and reported by the vehicle not being approximately equal to a same electrical parameter measured at the charge station. The electrical parameter may be power, voltage or current.

公开(公告)号：US20170372822A1

公开(公告)日：2017-12-28

申请号：US15698102

申请日：2017-09-07

Applicant: Ford Global Technologies, LLC

Inventor： Feng Liang ,  C Bing Rong ,  Michael W. Degner

IPC: H01F1/055 ,  H01F1/053 ,  B22F5/00 ,  H01F41/02 ,  H01F1/057 ,  B22F7/06 ,  B22F3/10

CPC classification number: H01F1/0557 ,  B22F3/10 ,  B22F3/12 ,  B22F5/00 ,  B22F7/06 ,  B22F2302/25 ,  B22F2302/45 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  H01F1/0536 ,  H01F1/0577 ,  H01F41/0266 ,  H01F41/0293 ,  B22F3/02 ,  B22F2304/10 ,  B22F2207/01

Abstract: In at least one embodiment, a single sintered magnet is provided having a concentration profile of heavy rare-earth (HRE) elements within a continuously sintered rare-earth (RE) magnet bulk. The concentration profile may include at least one local maximum of HRE element concentration within the bulk such that a coercivity profile of the magnet has at least one local maximum within the bulk. The magnet may be formed by introducing alternating layers of an HRE containing material and a magnetic powder into a mold, pressing the layers into a green compact, and sintering the green compact to form a single, unitary magnet.

公开(公告)号：US20170310190A1

公开(公告)日：2017-10-26

申请号：US15138368

申请日：2016-04-26

Applicant: Ford Global Technologies, LLC

Inventor： Michael W. Degner ,  Edward Chan-Jiun Jih ,  Tienli Wang ,  Prasad Dev Hanumalagutti

IPC: H02K5/20 ,  H02K9/19

CPC classification number: H02K5/20 ,  H02K9/19

Abstract: A vehicle electric machine may include a stator having end windings extending axially from the stator. A rotor may be disposed within the stator and including an endcap having an outer face defining outlets and a furrowed outer periphery with an edge configured to distribute coolant released from the outlets onto the outer face to different axial locations of the end windings during rotation. The furrowed outer periphery may taper toward an in inner flat portion. The outlets may be contained within the inner flat portion. The furrowed outer periphery may be symmetric about any axis perpendicular to and passing through an axis of rotation of the rotor. The outer face may further define channels extending from the outlets to the edge. The channels may be recessed in the outer face. The furrowed outer periphery may define concentric circumferential ridges.