AUTOMATED VEHICLE ROUTE PLANNER WITH ROUTE DIFFICULTY SCORING

• US 20170292843A1
• Filed: 04/07/2016
• Published: 10/12/2017
• Est. Priority Date: 04/07/2016
• Status: Abandoned Application

• Current Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: WEI, JUNQING, SNIDER, JARROD M., KIM, JUNSUNG, XU, WENDA, BHATIA, GAURAV, LEE, JONG HO, PAI MELGANGOLLI, VASUDEVA
• Application Number:
  US15/093,021
• Publication Number:
  US 20170292843A1
• Time in Patent Office: Days
• CPC Class Codes: G01C 21/3453 Special cost functions, i.e. other than distance or default speed limit of road segments

Abstract

A route-planning system suitable for use on an automated vehicle includes a memory and a controller. The memory is used to store map-data indicative of a plurality of possible-routes to a destination. Each possible-route is characterized by a difficulty-score. The controller is in communication with the memory. The controller is operable to select from the memory a preferred-route from the plurality of possible-routes. The preferred-route is selected based on the difficulty-score.

Claims

1. A route-planning system suitable for use on an automated vehicle, said system comprising:

a memory used to store map-data indicative of a plurality of possible-routes to a destination, wherein each possible-route is characterized by a difficulty-score;

a controller in communication with the memory, said controller operable to select from the memory a preferred-route from the plurality of possible-routes, wherein the preferred-route is selected based on the difficulty-score.

2. The system in accordance with claim 1, wherein the difficulty-score of the preferred-route is characterized as a minimum of difficulty-scores of possible-routes.

3. The system in accordance with claim 1, wherein the difficulty-score of the preferred-route is less than a difficulty-threshold and the preferred-route is one of a shortest-route, a quickest-route, and a least-fuel-route of the plurality of possible-routes.

4. The system in accordance with claim 1, wherein the difficulty-score of each possible-route is determined based on one or more of road-width, road-curviness, speed-limit, landmark-presence, traffic-history, lane-change-count, roadway-marking-quality, traffic-signal-count, stop-sign-count, and route-ingress-count.

5. The system in accordance with claim 1, wherein the difficulty-score of each possible-route is modified based on one or more of traffic-density, weather-conditions, and vehicle-capability.

6. The system in accordance with claim 1, wherein the system includes a plurality of sensors, and the difficulty-score of each possible-route is modified based on functional-status of each sensor.