Ford Global Technolgoies, LLC

Chris Wolf

Michael W Degner

Yue Nie

Robert Schroeter

Seth Avery

Jackson Lenz

Boratha Tan

Franco Leonardi

S George Luckey, Jr

Alan John Gillard

Monty J Anderson

Nicholas B Chase

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 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

Methods and systems are provided for an insulation system of a stator. In one example, a method may include receiving images of the stator at a processor of a computing system and feeding the images to a deep learning tool to generate processed images by segmenting and cropping the images according to slots identified in the images. Further, the varnish in the processed images may be quantified based on fluorescence of the varnish, converted into estimated varnish fill percentages, based on an output from analysis of the processed images, and the estimated varnish fill percentages may be displayed in a report.

Methods and systems for predicting stator insulation condition from stator sections

Methods and systems are provided for an insulation system of a stator. In one example, a method may include receiving images of the stator at a processor of a computing system and processing the images by converting the images to one or more of cluster-only images and binary masks. The images may be fed to an artificial intelligence (AI) model to obtain one or more of varnish estimates and void estimates to generate a training dataset which may be used to train a deep learning tool to estimate varnish fill percentages from the images and display the varnish fill percentages at a display device.

Methods and systems for varnish analysis of stator images

Methods and systems are provided for adapting pulse width modulation with randomized zero-sequence components for control of an electrified powertrain of a vehicle. In one example, a method may include determining a zero-sequence voltage of an electric machine of the vehicle based on a random distribution, and adjusting a voltage reference signal of the electric machine based on the determined zero-sequence voltage to decrease ambient acoustic noise in the vehicle. In this way, spectral energy dispersion of pulse width modulated control of the electric machine may be increased without affecting torque production of the electric machine.

Systems and methods for adapting pulse width modulation with randomized zero-sequence

Methods and systems are provided for adaptive pulse width modulated control of an electrified powertrain of a vehicle. In one example, a method may include perturbing a switching frequency for pulse width modulated control of the electrified powertrain, and, responsive to sound measured in a vehicle cabin indicating a noise improvement after the perturbation, controlling the electrified powertrain with the perturbed switching frequency. In this way, acoustic emissions from an electrified powertrain may be reduced.

Systems and methods for adaptive pulse width modulation

A method of separating a blank from a stack of blanks is provided and includes grasping a first blank and moving the first blank away from a plurality of blanks. At least one additional blank from the plurality of blanks is adhered to the first blank to form a sub-stack of blanks and at least one impulse electrically generated force (EGF) is applied to separate the at least one additional blank from the first blank. The first blank may be grasped by a device with a force F1, and the at least one impulse EGF may be less than the force F1. Also, the at least one impulse EGF may be applied to separate the at least one additional blank from the first blank by passing a pulse of current through an EGF generator positioned adjacent the first blank and inducing an EGF within the plurality of blanks.

Impulse electrically generated force separation of blanks for the automated destacking of metal sheet

This disclosure relates to an electrified vehicle and a method for providing driver feedback by producing a torque ripple. An exemplary electrified vehicle includes, among other things, an electric machine configured to generate a torque output, and a controller configured to selectively adjust the torque output to produce a torque ripple in response to a triggering event.

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Ann Arbor, MI, United States of America

Chris Wolf