Method and apparatus for electric vehicle routing and energy consumption thereof

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code for one or more programs,
• the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following,
• receive respective elevation coefficients of energy;
• associate a first elevation coefficient of the respective elevation coefficients with a first road segment record;
• associate a second elevation coefficient of the respective elevation coefficients with a second road segment record, the first elevation coefficient being different than a second elevation coefficient;
• store the first road segment record and the second road segment record in a navigation database, wherein the first elevation coefficient is associated with a first elevation change and the second elevation coefficient is associated with a second elevation change, wherein the value of the first elevation coefficient associated with the first elevation change is different for differing weather conditions and the value of the second elevation coefficient associated with the second elevation change is different for the differing weather conditions;
• and
• wherein the navigation database is configured such that the first and second road segments are processed to output a vehicle route to a destination or route information thereof as a function of the first and second elevation coefficients.

A non-transitory computer-readable storage medium carrying one or more sequences of one or more instructions which, when executed by one or more processors, cause an apparatus to perform:

• receiving a destination as input;
• determining a route from an origin to the destination via a plurality of road segments, the determining including selecting a first road segment to be part of the route based on a first elevation coefficient of energy associated with a first elevation change, the first elevation coefficient of energy attributed to the first road segment in a map database, wherein the value of the first elevation coefficient of energy associated with the first elevation change is different for differing weather conditions;
• and
• outputting the determined route or a portion thereof.