Patent ID: 9400183
Filing Date: 2016-07-26
CPC Classification: B60W,G01C,G05D

Claim Text:
1. An apparatus comprising: a processor in communication with a memory and configured to execute instructions stored in the memory to determine a current location of a vehicle; the memory storing instructions and roadgraph data including information about a roadway including a transition area for switching between a first map region and a second map region, and wherein the transition area is represented at a location corresponding to an exit ramp, the first map region includes a first side of a divided highway, the second map region includes a portion of roadway corresponding to a second side of the divided highway adjacent to the first side of the divided highway, the second portion is not included in the first map region, and the first portion is not included in the second map region; the processor configured to execute the instructions stored in the memory to: determine a current level of the vehicle; retrieve the first map region from the memory based on a current location of the vehicle; maneuver the vehicle using the first map region without reference to the second portion of the second map region; determine, using data received from a geographic position component, when the vehicle is within the transition area; and when the vehicle is determined to be within the transition area, retrieve the second map region from the memory; after retrieving the second map region, use the second map region and the portion of roadway to maneuver the vehicle.