GF82.85-P-2012RA Navigation Operation Function

GF82.85-P-2012RA Navigation Operation Function
- with CODE (352) COMAND operating and display system
- except CODE (491) USA version
- except CODE (498) Japan version

Component Identification:

The location of the vehicle, the direction and distance to the destination (after destination entry) are determined with the aid of the COMAND navigation system.
Subsequently the measures that are required to reach the destination are initiated (destination-finding system). The navigation system is activated by pressing the "NAV" button on the control unit.
In the COMAND operating, display and control module (A40/3) there is an integrated navigation processor with CD-ROM drive for digital map data.

Instruction in the Navi CD screen: "Please insert the Navi CD type DX" This instruction should ensure that the customers get hold of the right CD. The navigation CD-ROM drive is also capable of playing audio CDs.

Destination entry
This is accomplished menu-guided at the control module and is processed by the navigation processor. COMAND provides the following destination entry facilities:
^ Address...
^ Destination memory...
^ Destination with map...
^ Special destinations (e. g. railway station, airport etc.)
^ Guide...
^ Entry of intermediate destinations
^ Destination memory with individual designation possibility of destinations Last destination...
^ Dynamic route calculation with:
- Elimination of route sections (traffic jam function)
- Traffic jam ahead
- Disable in route list

^ Inclusion of traffic information from an external provider via telephone TCS (once, cyclically every t=15 min. Services subject to fees.
^ Inclusion of traffic information via RDS radio (TMC), free of charge (depending on whether coded or uncoded). There are likewise higher quality stages of TMC information which are offered liable to a charge

Predictive text input
During entry of the destination, missing letters are supplemented from a list which can be taken over or written over as required. This is active only in the political index and pertains to destination and street entry for route guidance. In the menu special destinations the submenus "Vicinity of other cities..." and "Extra regional destinations..." are supported. The menu "Extra regional destinations..." is subdivided into an additional submenu. The individual menu points in this submenu use the political index.

Dynamic supplementation
is realized for manual entry of the destination. During entry of the destination, letters not yet entered are supplemented from a list. The supplemented characters have a black background. Deleting can be accomplished character by character.

Location finding:
The COMAND system continuously calculates the location of the vehicle with the aid of the following processes:
^ GPS location finding
^ Basic location finding (dead reckoning)
^ Map-supported location finding (map matching)
The navigation processor calculates the most probable position by continuously comparing the results returned by these three methods.

Route calculation
The route is calculated by the navigation processor in accordance with the specified destination, or automatically, after a deviated from the suggested route has taken place.
With dynamic route guidance the route calculation is automatically influenced by the inclusion of traffic information, free of charge (depending on the quality of the information) via RDS/TMC or via an external provider TCS by phone (liable to a charge).
The calculated route is stored in the navigation processor.

Route guidance
After the navigation processor has completed calculation of the route route guidance is started.

Three types of display can be selected for graphic route guidance:
1. Map
2. Map and symbol display before turning points --> MIX-Mode
3. only symbol display (route guidance symbols)

The navigation display can be accomplished with symbols in the instrument cluster. Any of the three methods can be used. The destination-finding system is also supported by voice output from the vehicle loudspeakers.