The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2025
Filed:
Apr. 19, 2024
Fca Us Llc, Auburn Hills, MI (US);
Zachary L Tuller, Grand Rapids, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
A modeling and control technique for an electric motor of an electrified vehicle includes preparing for reconnection of an electric motor to a driveline, which were temporarily disconnected by a disconnect system therebetween, by commanding the electric motor to generate an open-loop torque in an attempt to overcome a static friction of the electric motor and to begin spinning the electric motor, receiving a set of operating parameters of the electrified vehicle including (i) a speed of the electrified vehicle and (ii) a speed of the electric motor, and in response to detecting that a speed/position of the electric motor increases to the value greater than zero, commanding a feed-forward target speed for open-loop control of the electric motor, wherein the feed-forward target speed ignores static friction dynamics and is offset by a first offset to compensate for delay in actuating the electric motor.