The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2015
Filed:
May. 05, 2009
Edward D. Tate, Jr., Grand Blanc, MI (US);
Charles A. Massoll, Milford, MI (US);
Edward D. Tate, Jr., Grand Blanc, MI (US);
Charles A. Massoll, Milford, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A navigation system includes a user-operable input device configured to receive a desired destination. A storage medium stores a map database that describes a road network comprising route segments. The map database includes, for each of the route segments, a respective attribute value and a respective energy cost. A processor is configured to analyze the route segments in the database in accordance with a predetermined optimization algorithm that considers both the attribute values and the energy costs of the route segments in order to select a combination of route segments from the database that interconnects a starting location and the destination.