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Method for determining altitude or road grade information in a motor vehicle

  • US 20050209775A1
  • Filed: 03/21/2005
  • Published: 09/22/2005
  • Est. Priority Date: 03/22/2004
  • Status: Abandoned Application
First Claim
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1. A method for determining altitude or road grade information in a motor vehicle, the method comprising:

  • evaluating first altitude or road grade information stored in a digital map by analyzing at least one of a GPS signal and vehicle data-based estimated altitude or road grade information; and

    when indicated based on the evaluating, correcting the first altitude or road grade information and using the corrected first altitude or road grade information as current altitude or road grade information.

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