Motor vehicle navigation system, in which data derived from vehicle onboard instrumentation is used to update a route and map database with information relating to new roads or road types

摘要

Navigation system for a motor vehicle comprises a database with a digital map and a position detection unit. The vehicle also has instrumentation (6-8) for sensing vehicle operating parameters and or its surroundings. These parameters can be used to derive information about the type of road and or its direction. This information is then compared with available data derived from the digital map data and can be used to update the database if necessary. An Independent claim is made for a method for updating a motor vehicle navigation database using a learning method in which sensed vehicle data is used to update current database data.