Patent attributes
Apparatus for determining the ground speed of a vehicle, comprising a plurality of sensing systems each of which is configured to provide a respective data source indicative of the ground speed of the vehicle; a controller configured to receive each of the data sources from the plurality of sensing systems; wherein the controller is configured to arbitrate between the received plurality of data sources from the plurality of sensing systems, determine a ground speed parameter from one of the data sources, and output the ground speed parameter for use within the vehicle. The invention also resides in a method for determining the ground speed of a vehicle and a computer program product that embodies said method.