BMW ON-BOARD MONITOR AND NAVIGATION SYSTEMS FOR E38 E39 E46 E53 User Manual download pdf (Page 4)

Mk-3 Navigation System On-Board Monitor with Widescreen Display Chapter 1 P.1

Course Contents/Background Material

Navigation system

Introduction

Increasing vehicle numbers and the resulting congestion on the

roads necessitate providing the driver with additional traffic

information during his journey.

BMW has therefore been offering a navigation system since

1994. This system allows the driver to plan his route from A to B.

An alternative route can easily be obtained during the journey

(e.g. if there is a traffic jam).

The system has been under constant development. In addition,

radio stations and special traffic information providers have

since become available. These can be utilised by the navigation

system.

The public radio stations have been broadcasting TMC (Traffic

Message Channel) information since 1997. Since 03.98, BMW

navigation systems have been processing this information and

displaying it to the driver.

The German Institution for Traffic Information (DDG - Deutsche

Gesellschaft für Verkehrsdaten) has been providing traffic

information since 1999. This information is automatically

updated, for a fee, by providers (e.g. Mannesmann Passo).

The navigation principle

Entry of various criteria (e.g. quickest route, major or secondary

roads), enables the navigation system to plan a point-to-point

route. To plan a route, the current location of the vehicle must be

known and the vehicle must be equipped with an electronic map

and a control/output unit.

The destination and the various other criteria are entered using

the control panel.

The driver is informed of the planned route, both visually and

audibly, by the output unit.

The current location of the vehicle is determined by dead

reckoning. The current vehicle location is calculated using the

GPS data, distance travelled/changes of direction and an

electronic map (CD) and then displayed.

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BMW ON-BOARD MONITOR AND NAVIGATION SYSTEMS FOR E38 E39 E46 E53 User Manual Page 4