Ford Global Technologies, LLC

Ford Motor Company Limited

Michael W Degner

Feng Liang

Franco Leonardi

Edward Chan-Jiun Jih

Allan Roy Gale

Chingchi Chen

Guangyin Lei

Prasad Dev Hanumalagutti

Leyi Zhu

Paul Theodore Momcilovich

Ke Zou

Wanfeng Li

Alfredo R Munoz

Krishna Prasad Bhat

Xi Lu

Chun Tang

Myung Ki Sung

Lan Yu

John Robert Grabowski

Larry Dean Elie

Wei Wu

Chuanbing Rong

Zhuxian Xu

Michael Alan Tamor

Venkateswa Anand Sankaran

Akash Changarankumarath Pradeepkumar

Jun Kikuchi

Christopher M Wolf

Chris Wolf

Daniel Richard Luedtke

Jiyao Wang

C Bing Rong

Henry Heping Huang

Tienli Wang

Lusu Guo

William Reynolds

Becky Sue Morris

Chang-jiang Wang

Yue Nie

David Crist Gabriel

Silong Li

Hongjie Wu

Theodore Joseph Filippi

Ji Wu

Jacek Brauner

Man Prakash Gupta

John Michael Miller

Shailesh Shrikant Kozarekar

Bruce Carvell Blakemore

Yang Xu

Yuan Zhang

Paul Raymund Nicastri

Raj Prakash

Ilya V Kolmanovsky

Anthony Mark Phillips

Bo Wu

Alex Gibson

Shahram Zarei

Jacob Krizan

Jin Wang

Vince Winstead

Miroslava Jankovic

Yuqing Tang

Rimma Isayeva

Garold Paul Myers

Seth Avery

Satish Thuta

Hongrae Kim

Bernard D Nefcy

Lihua Chen

S George Luckey, Jr

Jun Yang

James Ervin

Thomas Megli

Michael C Harke

Richard William Kautz

Wei Xu

Mark Allan Lippman

Vincent T Skalski

Philip Thomas Koneda

Hasdi R Hashim

Steven F Chorian

Xuemei Sun

Brian Richard Light

Alan John Gillard

Brandon Dobbins

Sudhir Kumar

Craig Winfield Peterson

Behzad Vafakhah

Singar Rathnam

Ronald C Elder

Brian Gillespey

Monty J Anderson

Gary Robert Flohr

Liwen Xu

Joseph Sherman Kimmel

Jami J Miller

Joe Youqing Xiang

Andreas R Schamel

Edward Jih

Systems and methods for commanding an electric drive system for an electric or hybrid vehicle are described. In one example, the drive system is commanded by a controller that supplies a pulsed torque command that varies in frequency as a function of time when a driver of a vehicle requests a constant driver demand torque.

Methods and system for improving electric machine efficiency

A rotor for an electric machine includes a core comprised of stacked laminations that define pockets between a hub portion and a pole portion. Each of the pockets are configured to receive magnetic material and define center cavities between regions of magnetic material to eliminate a flux leakage path between the magnetic materials. A cured mixture including an epoxy and a magnetic powder is disposed within the center cavities. The magnetic material may include sintered magnets and a cured mixture.

Adhesive mixture including hard magnetic material for e-machine rotor

A computer includes a processor and a memory, and the memory stores instructions executable by the processor to receive time-series data from sensors of a vehicle, determine an efficiency of the vehicle, and determine a probability of a fault occurring in the vehicle based on the time-series data and on the efficiency. The efficiency is energy consumption by the vehicle per distance traveled by the vehicle.

Vehicle fault prediction

Systems and methods for commanding an electric drive system for an electric or hybrid vehicle are described. In one example, the drive system is commanded by a controller that supplies a pulsed torque command that varies in magnitude as a function of time when a driver of a vehicle requests a constant driver demand torque.

Pulsed torque command with adjustable magnitude for electric machine torque control

Location-synchronous averaging of connected vehicle data is provided. Connected vehicle data, including events occurring to a plurality of vehicles driving along roadways and location coordinates at which the respective events occurred, is aggregated. A kernel density estimation is performed to smoothly aggregate neighboring event counts. The locations of conditions along the roadways are indicated as being where the aggregate neighboring event counts have a value over a predefined threshold.

Location-synchronous averaging of connected vehicle data

Methods and systems for demagnetizing a rotor. The method includes, in one example, adjusting a position of magnetic poles mounted on a frame in a demagnetization system in relation to a first electric machine rotor, and decreasing the magnetization of the first electric machine rotor via operation of the demagnetization system to generate an electromagnetic field.

Systems and methods for demagnetization of a permanent magnet rotor

An electric machine for an electrified vehicle includes a stator core configured to receive a plurality of windings. The stator core including a plurality of interchangeable stacked laminations arranged in sub-stacks. The sub-stacks having an outer diameter surface divided into circumferential quadrants, each quadrant having a cutout extending inwardly at a predetermined depth and radial position to define a serpentine cooling path on the outer surface of at least a portion of the sub-stacks. The sub-stacks are circumferentially rotated relative to each other such that two quadrants have a first cutout orientation, and the two other quadrants have a second cutout orientation, the first cutout orientation is different than the second cutout orientation and when rotated in sequence each cutout aligns to form the continuous serpentine cooling path in a quadrant of the stator core.

Stator with serpentine coolant path on the outer surface

Magnets having various portions of different densities and resistivities are disclosed. In a refinement, the various portions may have the same composition but different physical structures. Unique dies may be used to during processing, such as during sintering to manufacture the magnets. The die may include conductive and non-conductive surfaces that contact the green magnetic powder mixture during sintering such that the electrical current applied to the magnetic powder mixture is managed by the conductive and non-conductive surfaces to provide unique and complex magnets. Methods of manufacturing the magnets with the dies such as field assisted sintering, i.e., spark plasma sintering, are also disclosed.

Net shape processing of permanent magnet by field assisted sintering

A method includes responsive to indication that a predicted electricity price will exceed a predefined threshold during a timeframe, charging one or more power storage devices to a target amount, that is based on a predicted power demand of the building during the timeframe, before the timeframe begins, and discharging the one or more power storage devices to supply power to the building during the timeframe.

Control of vehicle and home energy storage systems

Systems and methods for operating an electric drive system for an electric or hybrid vehicle is described. In one example, the drive system is operated by suppling a pulsed torque current command while supplying a zero flux current command. The torque current command and the flux current command make up winding current commands for an electric machine.

Methods and system for estimating electric machine position offset

Permanent magnets and method of making the same are provided. The magnets include a magnetic layer having an insulation layer disposed thereon. The insulation layer is formed via additive manufacturing techniques such as laser melting such that it has discrete phases including a magnetic phase and an insulating phase.

Additive manufacturing of ND—FE—B magnets with insulating layers

Permanent magnets and methods of making the same are disclosed herein. The permanent magnets include a 3D-printed, i.e., additively manufactured, framework and an infiltrate such that there is a discrete magnetic phase and a discrete non-magnetic phase or two discrete magnetic phases. The infiltrate may provide superior strength, elasticity or magnetic properties.

Additive manufacturing of permanent magnets with post processing

An automotive power system includes a traction battery, an electric machine, and one or more power cards each containing at least one power semiconductor switch and at least one Y-snubber that includes a series connected capacitor and resistor. The power semiconductor switches are arranged to form an inverter electrically connected between the traction battery and electric machine. The resistors are tuned to dissipate common mode noise associated with operation of the power semiconductor switches.

Contained package for automotive inverter and y-snubber components

A core for an electrical apparatus includes a plurality of electrical steel sheets having a ferromagnetic or ferrimagnetic coating applied to both sides of the electrical steel sheets. The electrical steel sheets are arranged in a stack to form a laminated stack. The ferromagnetic or ferrimagnetic coating is applied to both sides of the electrical steel sheets. The coating may comprise MnZn ferrites, NiZn ferrites, MgMnZn ferrites, CoNiZn ferrites, Co ferrites, Ni ferrites, Yttrium iron garnets (Y3Fe5O12) or other ferromagnetic or ferrimagnetic coating materials.

Electrical steel lamination stacks with magnetic insulator coating for electrical apparatus cores

A vehicle power module assembly including first and second power modules is provided. The first power module may include a first lock feature extending from a lower portion of a first minor side at a first central axis. The second power module may include a second lock feature at an upper portion of a second minor side at a second central axis. The lock features may be sized for interlock with one another to secure the power modules to one another. The first lock feature may be a loop element defining a through-hole and the second lock feature may be a wedge. The through-hole may be sized for the wedge to extend therein and to interlock the first power module and the second power module to one another. The first lock feature may be a flexible hook element and the second lock feature may be a slot.

Vehicle power module assembly

Growing community of inventors

Novi, MI, United States of America

Michael W Degner