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Method and module for determining of velocity reference values for a vehicle control system

  • US 8,849,539 B2
  • Filed: 05/31/2010
  • Issued: 09/30/2014
  • Est. Priority Date: 06/10/2009
  • Status: Expired due to Fees
First Claim
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1. A method for determination of speed set-point values vref for a vehicle'"'"'s control systems, the method comprising:

  • A) determining a horizon using position data and map data of an itinerary made up of route segments with length and gradient characteristics for each segment;

    B) calculating threshold values for the gradient of segments according to one or more vehicle-specific values, which threshold values serve as boundaries for assigning segments to various categories;

    C) comparing the gradient of each segment with the threshold values and placing each segment within the horizon in a category according to the results of the comparisons;

    D) calculating speed set-point values vref for the vehicle'"'"'s control systems across the horizon according to rules pertaining to the categories in which segments within the horizon are placed;

    E) adding an offset voffset to the calculated speed set-point values vref when the vehicle is in a segment which is in a category indicating a steep upgrade or a steep downgrade; and

    F) regulating the vehicle according to the speed set-point values vref.

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