Navigation mode, function

N47-5

X11/4

MFL

A1

A2/23

Vehicle loudspeakers

Diagnosis

Radio Tuner

Traffic data recorder

Central computer

Audio signal processing

Navigation processor

A40/3

CD drive

CAN-B

Wheel speeds

N73

CAN-B

CAN-C

A2/13

D2B

Block diagram for COMAND navigation system in model 203, shown without dynamic navigation system

D2B Digital data bus

Multifunction steering wheel Multifunction steering wheel

N47-5 ESP and BAS control unit

N73 DI control unit

X11/4 Data link connector

A1 Instrument cluster

A2/13 Sound amplifier

A2/23 GPS antenna

A40/3 COMAND operating, display and control unit

A35/11

A35/17

A2/13

A2/22

A2/23

A2/50

B25

B25/6

S93/2

N80

A1

A34

CD drive

Radio Tuner

Navigation processor

Central computer with CAN B and diagnostic interface

Audio signal processing

CAN-B

X11/4

X11/4

S93/3

D2B

D2B

D2B

S93/6

Multifunction steering wheel

N2/7

N47N47-5

CAN-C

N73

A40/3

A2/6

A2/42

RGBS

RB CAN

A2/71

(A2/64)

RF

ZF

Antennas for radio reception

TCS



TMC



Vehicle loudspeakers

Model 209 and as from 1.7.02, model 203, block diagram for COMAND overall system, shown with dynamic route guidance and the following equipment:

 Code (810) Sound system

 Code (813) voice control system (VCS)

 Code (853) MB Standard telephone

 Code (855) TELE AID

 CODE (860) TV tuner

D2B Digital data bus

RB CAN Robert Bosch CAN

RF High frequency

Multifunction steering wheel Multifunction steering wheel

RGBS Red, green, blue signal (picture)

TCS Traffic Center Service

TMC Traffic Message Channel

A1 Instrument cluster

A2/6 CD changer (in glove compartment)

A40/3 COMAND operating, display and control unit

B25 Hands-free system microphone

B25/6 Sound amplifier microphone

N2/7 Restraint systems control unit

N47-5 ESP and BAS control unit

N73 DI control unit

N80 Steering column module

S93/2 VCS switch

S93/3 SOS pushbutton switch

X11/4 Data link connector

A2/13 Sound amplifier

A2/22 Telephone antenna

A2/23 GPS antenna

A2/42 TV tuner

A2/50 TELE AID backup antenna

A2/64 Left antenna amplifier module (model 209.4)

A2/71 Window antenna amplifier module 1 (models 203, 209.3)

A35/11 Voice control system control unit

A35/17
D2B telephone and TELE AID transmitter/receiver

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. The navigation system calculates the data on how to reach the destination (navigation).

The navigation system is activated by actuating the "NAV" button on the COMAND operating, display and control unit (A40/3). In the COMAND operating, display and control unit (A40/3) there is an integrated navigation processor with Compact Disc (CD) drive for digital map data.

 Note in navigation display:
-Up to 31.5.01: "Please insert Navigation CD"
-As from 1.6.01: "Please insert Navigation CD type DX"

This info is intended to ensure that the customers insert the correct CD. The multi-standard disk drive can also play audio CDs.

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Destination entry (up to 31.5.01)

Entry of the destination can be performed with menu guidance on the COMAND operating, display and control unit (A40/3) and is processed by the navigation processor. The COMAND operating, display and control unit (A40/3) offers the following options for destination entry in navigation mode:

 Address input

 via destination memory

 via map

 Special destinations (e.g. railway station, airport)

 Travel guide

 Intermediate destination entry with individual destination designation facility

Destination entry (as from 1.6.01)

Entry of the destination can be performed with menu guidance on the COMAND operating, display and control unit (A40/3) and is also processed by the navigation processor.

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The COMAND operating, display and control unit (A40/3) offers the following options for destination entry in navigation mode:

 Address input

 Destination memory

 Destination with map

 Special destinations (e.g. railway station, airport)

 Travel guide

 Last destinations

Entry aid (as from 1.6.01)

During entry of the destination, letters not yet entered are supplemented from a list. The entry aid relates to entry of the destination and street during navigation.

In the menu "Special destinations" the submenus "Bypassing other locations..." and "National destinations..." are assisted. The menu "National destinations..." is subdivided into a further submenu.

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Dynamic supplementation

Dynamic augmentation is implemented upon 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.

Position finding

The COMAND operating, display and control unit (A40/3) continuously calculates the location of the vehicle with the aid of the following procedures:

 GPS position finding

 Basic position finding (dead reckoning)

 Map-supported map matching

The navigation processor calculates the most likely position by continuously comparing the results returned by these three methods:

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Route calculation

The route is calculated by the navigation processor in accordance with the specified destination, or automatically, after a deviation from the suggested route has taken place.

In the dynamic navigation system, route calculation is automatically influenced through the integration of traffic information, either free of charge via the Radio Data System (RDS) and Traffic Message Channel (TMC) or by an external provider by telephone.

The calculated route is stored in the navigation processor.

Route guidance

Navigation starts once the navigation processor 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 only (guide symbols)

It is possible to change arbitrarily between the 3 types of presentation. The destination-finding system is also supported by voice output from the vehicle loudspeakers.