US 11,987,151 B2
Control system and method for controlling an electric motor
Riccardo Fracchia, Coventry (GB); and Orrin Hipkin, Coventry (GB)
Assigned to Jaguar Land Rover Limited, Coventry (GB)
Filed by JAGUAR LAND ROVER LIMITED, Coventry (GB)
Filed on Feb. 21, 2022, as Appl. No. 17/676,512.
Application 17/676,512 is a continuation of application No. 16/243,719, filed on Jan. 9, 2019, granted, now 11,254,216.
Claims priority of application No. 1802944 (GB), filed on Feb. 23, 2018.
Prior Publication US 2022/0176825 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B60L 7/18 (2006.01); B60L 15/20 (2006.01); B60T 1/10 (2006.01); B60T 8/1761 (2006.01); B60T 13/58 (2006.01); F16D 61/00 (2006.01)
CPC B60L 7/18 (2013.01) [B60L 15/2009 (2013.01); B60T 1/10 (2013.01); B60T 8/1761 (2013.01); B60T 13/586 (2013.01); F16D 61/00 (2013.01); B60L 2240/12 (2013.01); B60L 2240/16 (2013.01); B60L 2240/18 (2013.01); B60L 2240/24 (2013.01); B60L 2240/642 (2013.01); B60L 2240/647 (2013.01); B60L 2240/662 (2013.01); B60T 2210/12 (2013.01); B60T 2210/14 (2013.01); B60T 2270/60 (2013.01); B60T 2270/604 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A control system for controlling an electric motor of a vehicle, the electric motor for providing a regenerative braking torque, the control system being configured to:
receive one or more electrical signals indicative of a surface indicator providing information relating to surface drag;
receive one or more electrical signals indicative of a deceleration demand;
determine a target vehicle deceleration in dependence on the surface indicator such that in the case of relatively high drag surface the target vehicle deceleration is reduced compared with the case of relatively low surface drag;
determine, based on said one or more electrical signals indicative of a deceleration demand, a requirement to decelerate the vehicle; and
in dependence on determining said requirement, output a control signal to the electric motor, wherein the control signal is configured to cause the electric motor to provide the target vehicle deceleration.