US 12,252,110 B2
System and method for controlling an electric machine for a vehicle
Matthew Hancock, Rugby (GB); Gareth Jones, Warwick (GB); Blake Hemingway, Coventry (GB); Christopher Blakesley, Coventry (GB); and Daniele Giovanelli, Leamington Spa (GB)
Assigned to JAGUAR LAND ROVER LIMITED, Coventry (GB)
Appl. No. 17/920,749
Filed by JAGUAR LAND ROVER LIMITED, Coventry (GB)
PCT Filed Apr. 21, 2021, PCT No. PCT/EP2021/060433
§ 371(c)(1), (2) Date Oct. 21, 2022,
PCT Pub. No. WO2021/214168, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 2005806 (GB), filed on Apr. 21, 2020.
Prior Publication US 2023/0150479 A1, May 18, 2023
Int. Cl. B60W 20/40 (2016.01); B60W 10/02 (2006.01); B60W 10/08 (2006.01); B60L 15/20 (2006.01)
CPC B60W 20/40 (2013.01) [B60W 10/02 (2013.01); B60W 10/08 (2013.01); B60W 2520/28 (2013.01); B60W 2710/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electric machine control system for a vehicle, the electric machine control system comprising one or more controllers, wherein the vehicle comprises an electric machine arranged to be selectively coupleable to provide torque to at least one wheel of an axle of the vehicle, the control system comprising:
an input to receive a speed signal indicative of a speed of the vehicle;
one or more electronic processors arranged to determine a desired coupling state of the electric machine to the at least one wheel of the axle in dependence on the speed signal, wherein the one or more electronic processors are arranged to determine the desired coupling state as coupled in dependence on the speed signal being indicative of a vehicle speed equal to or below a first low-speed threshold and to determine the desired coupling state as a no-request coupling state in dependence on the speed signal being indicative of a vehicle speed above a second low-speed threshold, the no-request coupling state being indicative of no request for a specific coupling state, wherein the second low-speed threshold represents a vehicle speed greater than the first low-speed threshold; and
an output arranged to output a coupling signal indicative of a request to couple the electric machine to the at least one wheel of the axle when the desired coupling state is determined to be coupled.