Jaguar Land Rover Limited

Philip Barber

James Kelly

Jeremy John Greenwood

Brian Gerrard

Naseem Akhtar

Georgios Sampardoukas

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 ().

Traction controller and method

Embodiments of the present invention provide systems and methods for performing autonomous manoeuvers, especially when visibility is poor or it is unclear whether or not the terrain surrounding the vehicle is suitable for the vehicle to drive on. In some embodiments the systems are operable to detect user-defined boundaries to provide an improved determination as to whether or not the surrounding terrain is suitable for driving on.

Growing community of inventors

Warwickshire, United Kingdom

Philip Barber