Navigation method and device

• US 20020152018A1
• Filed: 05/16/2002
• Published: 10/17/2002
• Est. Priority Date: 04/29/2000
• Status: Abandoned Application

• Current Assignee: Siemens AG, Daimler Chrysler Company LLC (Stellantis NV)
• Original Assignee: Siemens AG, Daimler Chrysler Company LLC (Stellantis NV)
• Inventors: Duckeck, Ralf
• Application Number:
  US10/019,894
• Publication Number:
  US 20020152018A1
• Time in Patent Office: Days
• US Class Current: 701/201
• CPC Class Codes: G01C 21/3415 Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents
• CPC Class Codes: G08G 1/096716 where the received information does not generate an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096741 where the source of the transmitted information selects which information to transmit to each vehicle
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station
• CPC Class Codes: G08G 1/096816 where the complete route is transmitted to the vehicle at once
• CPC Class Codes: G08G 1/096844 where the complete route is dynamically recomputed based on new data

Abstract

Navigation methods and devices are described, in particular for use in vehicle navigation systems. If alternative recommendation is needed, essentially only the information (40) necessary for driving an alternative section of the original route is transmitted from a traffic control center to the vehicle navigation system. This information represents essentially only deviations from the route calculated in the vehicle navigation system.

Claims

1. A navigation method for use in vehicle navigation systems (25) in which a route is calculated in an on-board vehicle navigation system (25) in a vehicle (20), and information from a control center (30) is transmitted to the vehicle information system (25) for the purpose of optimized route planning, characterized by the step in which only the delta information (40) representing the required necessary deviations from the previously calculated route for driving an alternative section of the route is transmitted from the control center to the vehicle navigation system (25).

2. The method according to claim 1, including the step of transmitting the current vehicle position, the destination of the route and the database version information to the control center (30) to initiate an optimized route planning.

4. A vehicle navigation system set up for carrying out the method according to one of the preceding claims 1 and 2.

3. A method for controlled management of motor vehicle traffic flow, in which information is transmitted from a control center (30) to on-board vehicle navigation systems (25) in the vehicles (20) for the purpose of preventing traffic problems, including the step of distributing the traffic flow among a plurality of detour segments (AR1, AR2, AR3) in a controlled manner when there is a traffic problem and a plurality of feasible detour routes are available.

5. A program for use in a traffic control center (30) containing program code suitable for executing the method according to claim 3.