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:
Dec. 07, 2021
Filed:
Mar. 20, 2017
Jaguar Land Rover Limited, Coventry, GB;
Jeremy Greenwood, Warwickshire, GB;
Georgios Sampardoukas, Warwickshire, GB;
Philip Barber, Warwickshire, GB;
Jaguar Land Rover Limited, Coventry, GB;
Abstract
The present disclosure relates to a controller () for controlling an electric machine () to drive a wheel () of a vehicle (). The controller () includes a processor () configured to determine an effective torque (T). A speed demand signal () for controlling the wheel speed is output by the processor (). The processor is configured to detect changes in the effective torque (T) as the wheel speed (S) changes and to modify the speed demand signal () in dependence on the detected changes in the effective torque (T). The processor () may determine a derivative (dT/dS) of the effective torque (T) with respect to the wheel speed (S). The present disclosure also relates to a method of controlling an electric machine () to drive a wheel () of a vehicle ().