Assistance system for selecting routes

• US 20040049339A1
• Filed: 09/11/2003
• Published: 03/11/2004
• Est. Priority Date: 07/04/2000
• Status: Abandoned Application

• Current Assignee: Daimler Chrysler Company LLC (Stellantis NV)
• Original Assignee: Daimler Chrysler Company LLC (Stellantis NV)
• Inventors: Mueller, Martin, Ruether, Christoph, Vollmer, Dieter, Kuhn, Werner, Kober, Markus
• Application Number:
  US10/332,042
• Publication Number:
  US 20040049339A1
• Time in Patent Office: Days
• US Class Current: 701/209
• CPC Class Codes: G01C 21/3492 employing speed data or traffic data, e.g. real-time or historical traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968
• CPC Class Codes: G08G 1/0969 having a display in the form of a map

Abstract

The invention relates to an assistance system for selecting a route with the aid of a computing device, a storage device and an input and output device, each route being described by route parameters influencing the journey and stored in the storage device, and whose computing device selects a specific route after an input of search criteria and outputs it via the output device. It is proposed according to the invention that the computing device uses the route parameters influencing the journey to determine macroscopic route features for each route which can be interrogated by the input of search criteria for macroscopic route features.

Claims

1. Assistance system for selecting a route with the aid of a computing device (1), a storage device (2), an input device (4) and an output device (5), each route being described by route parameters influencing the journey and stored in the storage device (2), and whose computing device (1) selects a specific route after an input of search criteria and outputs it via the output device (5), characterized in that the computing device (1) uses the route parameters influencing the journey to determine and store macroscopic route features for each route which can be interrogated by the input of search criteria for macroscopic route features.

2. Assistance system according to claim 1, characterized in that for a route being sought the computing unit (1) compares the input macroscopic route features with the macroscopic route features defined for each route, and selects and outputs the route whose macroscopic route features come closest to the input route features.

3. Assistance system according to claim 1, characterized in that calculated as macroscopic route features from the route parameters influencing the journey are a horizontal line trace and/or a vertical line trace and/or a dynamized pilot speed.

4. Assistance system according to claim 3, characterized in that as macroscopic route features, the vertical line trace comprises a curviness and/or a proportion of curves and/or a classification of the horizontal line trace.

5. Assistance system according to claim 3, characterized in that as macroscopic route features the horizontal line trace comprises a mean incline and/or upgrade and downgrade sections and/or maximum inclines.

6. Assistance system according to claim 3, characterized in that the computing device (1) calculates the. macroscopic route features for prescribable length intervals.

7. Assistance system according to claim 1, characterized in that the macroscopic route features comprise the percentages of speed limitations and/or of overtaking bans and/or of road types and/or of number of lanes.

8. Assistance system according to one of the preceding claims, characterized in that the assistance system is part of a navigation system.

9. Assistance system according to one of the preceding claims, characterized in that the assistance system is used to select test routes for vehicle testing.