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Speed control system and method of operating the same

  • US 10,501,076 B2
  • Filed: 08/16/2013
  • Issued: 12/10/2019
  • Est. Priority Date: 08/16/2012
  • Status: Active Grant
First Claim
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1. A method of operating an off-highway speed control system of a vehicle, the method comprising:

  • identifying a terrain type;

    identifying a pattern or change in at least one component of vehicle drag based at least in part on the terrain type, wherein the identifying of the pattern or change in at least one component of vehicle drag based at least in part on the terrain type comprises determining that the vehicle is transitioning from one surface type having a first surface coefficient of friction and rolling resistance to a further surface type having a second surface coefficient of friction and rolling resistance;

    monitoring vehicle speed to predict where a change in said at least one component of vehicle drag as a result of the determined transition from the one surface type to the further surface type may result in a speed overshoot event or a speed undershoot event; and

    in response to said predicted speed overshoot event or speed undershoot event, automatically commanding an application of an appropriate opposing torque to one or more wheels of the vehicle to counteract said predicted speed overshoot event or undershoot event.

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