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公开(公告)号:US10919407B2
公开(公告)日:2021-02-16
申请号:US16168598
申请日:2018-10-23
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor: Xi Lu , Ke Zou , Krishna Prasad Bhat , Michael W. Degner
Abstract: A vehicle power system includes a power converter including one or more phase leg lines and a negative rail line. The system also includes a controller that operates the power converter to flow current through some of the phase leg lines and the negative rail line to output DC power, and operates the power converter to flow current through the some of the phase leg lines and not the negative rail line to output AC power.
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公开(公告)号:US10797544B2
公开(公告)日:2020-10-06
申请号:US15380022
申请日:2016-12-15
Applicant: Ford Global Technologies, LLC
Inventor: Chun Tang , Wei Wu , Feng Liang , Michael W. Degner
Abstract: An electric machine may include a rotor defining a cavity containing a magnet, an outer periphery and a top bridge therebetween. The top bridge defines at least two segments. Each of the segments has a width that is minimum closest to a Q-axis, is maximum closest to a D-axis, and monotonically increases from the minimum to the maximum such that during operation a rate of change of rotor magnetomotive force associated with each segment differs.
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公开(公告)号:US10749404B2
公开(公告)日:2020-08-18
申请号:US15869729
申请日:2018-01-12
Applicant: Ford Global Technologies, LLC
Inventor: Michael W. Degner , Prasad Dev Hanumalagutti , Franco Leonardi
IPC: H02K5/22 , H02K15/12 , H02K9/19 , H02K3/38 , H02K11/25 , B60K6/26 , B60K6/40 , H02K1/14 , H02K3/24 , H02K3/50 , H02K3/52 , H02K5/20 , H02P27/06
Abstract: A vehicle electric machine assembly including a stator core and a terminal block is provided. The stator core includes one or more three-phase terminals connected to end windings. The terminal block includes a connector for each of the three-phase terminals. A portion of the end windings extending from the stator core, the three-phase terminals, and the terminal block are overmolded as a single unit such that a portion of each of the connectors is exposed for connection to an inverter. The terminal block may further include one or more threaded apertures, each sized to receive a threaded stud to facilitate an electrical connection between one of the one or more three-phase terminals and the inverter. Each of the one or more three-phase terminals may extend axially along an axis substantially parallel to a central axis of a rotor disposed within a cavity defined by the stator core.
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公开(公告)号:US10608487B2
公开(公告)日:2020-03-31
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
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.
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公开(公告)号:US20200086747A1
公开(公告)日:2020-03-19
申请号:US16130071
申请日:2018-09-13
Applicant: Ford Global Technologies, LLC
Inventor: Krishna Prasad Bhat , Michael W. Degner , Allan Roy Gale , Ke Zou , Xi Lu
Abstract: An exemplary charging system includes, among other things, a first portable charger that electrically couples to an electrified vehicle to charge a traction battery of the electrified vehicle while a second portable charger is providing electrical energy to charge the traction battery. An exemplary charging method includes, among other things, electrically coupling both a first and a second portable charger to an electrified vehicle to charge a traction battery of the electrified vehicle using electrical energy from both the first and the second portable chargers.
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公开(公告)号:US10568240B2
公开(公告)日:2020-02-18
申请号:US15198925
申请日:2016-06-30
Applicant: Ford Global Technologies, LLC
Inventor: Myung Ki Sung , Edward Chan-Jiun Jih , Michael W. Degner
IPC: H05K7/20 , F28D15/00 , F28F9/22 , F28F13/06 , F28F13/08 , F28F13/18 , H02M7/44 , H01L23/473 , H01M10/44 , H01M10/48 , F28D21/00
Abstract: Electronic devices are disclosed including hydrophobic or oleophobic coatings that control coolant flow therein or thereon. In at least one embodiment, a power inverter cold plate is provided including coolant inlet, a coolant outlet, a coolant flow spreading region, a coolant flow collection region, and a coolant heat-transfer region disposed therebetween; and one or more layers of a hydrophobic or oleophobic coating configured to control a flow of coolant in the cold plate. A method may include applying one or more layers of a hydrophobic or oleophobic coating to a power inverter cold plate to control a flow of coolant in the cold plate, the one or more layers being applied to one or more of a coolant flow spreading region, a coolant flow collection region, or a coolant heat-transfer region disposed therebetween. The layers may define coolant flow paths, eliminate recirculation zones, and/or prevent coolant leak paths.
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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
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.
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公开(公告)号:US10527653B2
公开(公告)日:2020-01-07
申请号:US15474489
申请日:2017-03-30
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor: Richard William Kautz , Xi Lu , Zhuxian Xu , Guangyin Lei , Chingchi Chen , Lan Yu , Michael W. Degner
Abstract: A method includes measuring an impedance of a shunt as a function of frequency and converting the impedance to an admittance in a time domain. The method further includes connecting the shunt in a circuit and measuring voltage data across the shunt over a predetermined interval. The method includes outputting a signal indicative of a current through the shunt derived from the voltage data convolved with the admittance. The method may be implemented in a controller configured to interface with the shunt.
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公开(公告)号:US10468920B2
公开(公告)日:2019-11-05
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
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.
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公开(公告)号:US20190222078A1
公开(公告)日:2019-07-18
申请号:US15871615
申请日:2018-01-15
Applicant: Ford Global Technologies, LLC
Inventor: Feng LIANG , Franco LEONARDI , Becky Sue MORRIS , Michael W. Degner
Abstract: An electric machine includes a stator core defining slots having radial layers that each include adjacent first and second pin positions. Pins are disposed in corresponding ones of the slots and are interconnected to form a winding path. The path occupies the first and second positions of each layer, and, for each of the corresponding slots, the pins are in a same layer.
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