Patent ID: 8442759
Filing Date: 2013-05-14
Classification: G01C

Abstract:
1. A method for communicating navigational information to a telematics unit, comprising: receiving route requirements, the route requirements including at least a location and a destination; calculating a single route to the destination, including calculating an initial portion of the route according to a first set of criteria and calculating at least one additional portion of the route according to a second set of criteria, wherein the first and second sets of criteria include a route type selected from the group consisting of scenic, minimum distance, minimum travel time, and minimum tolls, and wherein the route type of the first criteria is different from the route type of the second set of criteria; sending the initial portion of the route and a trigger condition to the telematics unit, wherein the trigger is determined before any portion of the route is sent to the telematics unit; receiving information from the telematics unit indicating fulfillment of the trigger condition; and sending the at least one additional portion of the route to the telematics unit.