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:
Oct. 16, 2012
Filed:
Jan. 13, 2010
Volker Hiestermann, Laatzen, DE;
Robert Joannes Van Essen, Amsterdam, NL;
Edwin Bastiaensen, Beersel, BE;
Stephen T'siobbel, Merelbeke, BE;
Volker Hiestermann, Laatzen, DE;
Robert Joannes Van Essen, Amsterdam, NL;
Edwin Bastiaensen, Beersel, BE;
Stephen T'Siobbel, Merelbeke, BE;
Other;
Abstract
Probe data is analyzed to derive Longitudinal Speed Profiles (LSPs) and an Optimal Longitudinal Speed Profile () for each road segment or link in a digital map network. The Longitudinal Speed Profiles (LSPs) profiles are calculated during defined time spans whereas the Optimal Longitudinal Speed Profile () is based on the LSP for the time span corresponding only to free flow traffic conditions. All of the LSPs can used to create a respective energy cost for each time span, or only the OLSP () can be used (or alternatively the RRDSLor LRRDSL) to calculate an energy cost for the free flow conditions only. The energy cost can be used to predict the energy required by a vehicle to traverse the link. Navigation software can use the energy cost to plan the most energy efficient route between two locations in the digital map. Sensory signals can be activated if a driver strays from the Optimal Longitudinal Speed Profile () to achieve extremely high levels of energy efficiency.