GF82.85-P-2012RMU Navigation Mode, Function

GF82.85-P-2012RMU Navigation Mode, Function

After the navigation system has been activated by pressing the "NAV" button on the COMAND operating, display and control unit (A40/3), the location of the vehicle, the direction and the distance to the destination (after entering the destination) are determined. The navigation processor (N41/1) calculates the data for reaching the destination (navigation).

If the navigation digital versatile disk (DVD) is not in the drive, the message "Please insert navigation DVD" appears in the navigation display.

Destination entry
The destination is entered menu-assisted on the control unit and is processed by the navigation processor (N41/1).

The COMAND operating, display and control unit (A40/3) offers the following options for destination entry:
^ Address input
^ Destination memory
^ Destination with map Special destinations (e.g. railway station, airport etc.)
^ Travel guide
^ Last destinations

Dynamic supplementation
The dynamic supplementation is realized when the destination is input manually. During entry of the destination, letters not yet entered are supplemented from a list using the input aid (speller). The supplemented characters have a black background. Deleting can be accomplished character by character.

Position finding
The COMAND operating, display and control unit (A40/3) continuously calculates the location of the vehicle using the following methods:
^ Basic position finding (dead reckoning)
^ Global positioning system (GPS) position finding
^ Map-supported map matching

The navigation processor (N41/1) calculates the most likely position by constantly comparing the location results of these 3 methods.

Route calculation
The route is calculated in the navigation processor (N41/1) after destination input or automatically after a deviation from the proposed route.

Route guidance
Navigation starts once the navigation processor (N41/1) has carried out the route calculation 3 types of display can be selected for graphic navigation:
^ with map
^ with map and symbol display before turn-off points
^ With symbol display (guide symbols)

It is possible to change at will between the 3 types of presentation. The navigation is also supported by voice output from the vehicle loudspeakers.