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Method and system for controlling a vehicle cruise control

  • US 9,096,229 B2
  • Filed: 07/02/2009
  • Issued: 08/04/2015
  • Est. Priority Date: 07/02/2009
  • Status: Active Grant
First Claim
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1. Method for controlling a vehicle cruise control comprising:

  • driving the vehicle with the cruise control active and set to maintain a vehicle set target speed;

    registering, by a processor, a first vehicle position when driving in an uphill slope of a hill where vehicle retardation has decreased vehicle speed to a first vehicle speed below the vehicle set target speed and where the retardation has decreased to zero or the vehicle has just started to accelerate in order to increase vehicle speed to the vehicle set target speed;

    selecting, by a processor, a second position downhill of a crest of the hill and registering, by the processor, a desired vehicle speed in the second position;

    based on the desired vehicle speed calculating a vehicle speed needed at the crest with which the vehicle has to pass the crest in order to be able to reach the desired vehicle speed with a minimized or zero fuel consumption while traveling from the crest to the second position; and

    controlling vehicle speed during a second, non-zero distance between the first vehicle position and the crest so that the vehicle reaches the needed vehicle speed when passing the crest, and maintaining a vehicle speed below the vehicle set target speed during the second distance.

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