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Method for determining the mass of a motor vehicle while taking into account different driving situations

  • US 7,363,116 B2
  • Filed: 03/23/2004
  • Issued: 04/22/2008
  • Est. Priority Date: 09/28/2001
  • Status: Expired due to Term
First Claim
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1. A method for determining the mass of a motor vehicle, comprising the steps of:

  • determining a vehicle acceleration from at least a time differential of vehicle speed, a slope descending angle and a rolling resistance coefficient;

    determining vehicle forces, wherein the vehicle forces includea driving force of a vehicle drive unit,resistance forces resulting from rotational forces and air resistance, anda braking force;

    dividing the vehicle forces by the vehicle acceleration to obtain a vehicle mass value,obtaining a plurality of vehicle mass values from a plurality of driving situations;

    storing each of the plurality of vehicle mass values, anddetermining a collective mass value from the stored plurality of vehicle mass values, wherein the plurality of vehicle mass values obtained from the plurality of driving situations are weighted differently.

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