Aftermarket Systems After Market Handelsgerte Systmes installs en 2nde monte Aftermarket Systeem Blaupunkt TravelPilot. Blaupunkt TravelPilot DX. Blaupunkt TravelPilot E. Blaupunkt TravelPilot EX (DVD) Clarion. VDO Dayton. VDO Dayton C-IQ.. 24
Portable Navigation Systems Sistemi di navigazione portatile Mobile Navigationssysteme Systmes de navigation portables Draagbare Navigatiesystemen Blaupunkt. 24 naviflash. 25 Mio. 25
Signs and symbols [.] [i] Exact start date not traceable Ongoing Further assistance is recommended by contacting the relevant dealer/wholesaler/service centre. No picture available VIN Vehicle Identification Number
In-Car Navigation Systems Sistemi di navigazione automobilistica Ingebouwde Autonavigatiesystemen Factory-Fitted Systems Primo Impianto Erstausrstung Alfa Romeo
Alfa Romeo 156 Blaupunkt TravelPilot DX Alfa Romeo GTV Blaupunkt TravelPilot Blaupunkt TravelPilot Blaupunkt TravelPilot DX Alfa Romeo Spider Blaupunkt TravelPilot Blaupunkt TravelPilot Blaupunkt TravelPilot DX Radio Navigation System RNS 2 Radio Navigation System RNS 3 Radio Navigation System RNS 4 Radio Navigation System RNS 2 Radio Navigation System RNS 3 Radio Navigation System RNS 4 Radio Navigation System RNS 4
Kfz-Navigationssysteme Systmes de navigation embarqus
quipement dorigine Origineel Genstalleerd Navigatiesysteem
Radio Navigation System RNS 2
Radio Navigation System RNS 3
Radio Navigation System RNS 4
Audi A2 Blaupunkt Blaupunkt Blaupunkt Blaupunkt Audi A3 Blaupunkt Blaupunkt Blaupunkt Blaupunkt Blaupunkt Audi A4 Blaupunkt Blaupunkt Blaupunkt Blaupunkt Blaupunkt Audi A6 Blaupunkt Blaupunkt Blaupunkt Blaupunkt Audi A8 Blaupunkt Blaupunkt Blaupunkt Blaupunkt Audi TT Blaupunkt TravelPilot Blaupunkt TravelPilot DX Blaupunkt TravelPilot E
TravelPilot TravelPilot DX TravelPilot TravelPilot DX

Audi Audi Audi Audi

Navigation Navigation Navigation Navigation
BNS 3.X BNS 4.X Plus 2-DIN RNS 3.X Plus 2-DIN RNS 4.X

Service.
Self - Study Programme 199
The Radio Navigation System

Design and Function

36 K VK

SSP 199-001

This Self-Study Programme describes the function and design of the Volkswagen and Audi Radio Navigation Systems. The Volkswagen Radio Navigation Systemand the Audi Plus Navigation System combine navigation system and radio functions. The controls and displays on the two systems are different. In addition, the Audi Plus Navigation System has an integrated television receiver. The contents of this Self-Study Programme are subdivided into two parts: Part1 Part2 - Basic principles of satellite navigation and vehicle navigation - Function and design of the Radio Navigation System - Operation of the Radio Navigation System - Self-diagnosis and service

New Important Note

The Self-Study Programme is not a Workshop Manual.
Please always refer to the relevant Service Literatur e for all inspection, adjustment and repair instructions.

At a glance

What is where?.4 VW and Audi Navigation Systems.6 Basic principles. 7
Basic principles of satellite navigation. 7 How vehicle navigation works. 12 System components.14 System overview. 20
Operation and function.23
The main new features. 23 Operating the VW radio unit. 24 Self-diagnosis of the radio unit. 26 Operating the VW navigation unit. 28 Self-diagnosis of the navigation unit. 30 Audi Plus Navigation System Operating the radio. 32 Audi Plus Navigation System Operating the navigation unit. 34 Audi Plus Navigation System How to get TV reception. 36 Audi Plus Navigation System Testing the TV function. 37 Differences between the VW and Audi Radio Navigation System. 38 Possibilities for connection to the VW/Audi Radio Navigation System. 39
Service. 40 Test your knowledge.42

What is where?

To provide you with a quick overview, all the component parts of the Volkswagen and Audi Radio Navigation Systems are shown on this double page.
You will find a description of the design and function of the system components on the following pages.
VW Radio Navigation System
Control unit with control panel comprising: Operating and function keys Colour multifunction display Radio GPS receiver CD-ROM drive Angle of turn sensor
TIM TIM INFO INFO AS AS SCAN SCAN

Satellites

Navigationssystem Navigationssystem
CD Change Control CD Change Control

WESTSTRASSE

Navi NAVI

AUDIO AUDIO

km MITTELSTRASSE ENTER ruft die Kartendarstellung auf

TELE ATLAS

1998 - I

Triplex antenna

DEUTSCHLAND PLUS

M ulti Map TravelP ilot

Navigation CD-ROM

ABS wheel speed sensor

Radio loudspeaker Switch for reversing lights

SSP 199-051

Audi Plus Navigation System
Control unit with operating unit comprising: Operating and function keys Colour multifunction display Radio GPS receiver CD-ROM drive Angle of turn sensor
TV antennas 1, 2, 3, 4 In the Avant, the TV antenna is integrated in the rear side windows. Radio antenna for FM and AM

Audi navigation +

DISPLAY

Antenna booster (4 pcs.)

MITTELSTRASSE ENTER ruft die Kartendarstellung auf

RETURN

RADIO / CD

NAVIGATION

Navigation (GPS) antenna A Triplex antenna is fitted in the Avant

TV Tuner

ABS wheel speed sensor Radio loudspeakers Switch for reversing lights

SSP 199-052

Navigation systems for VW and Audi
VW and Audi navigation systems
The Audi A8 from model year 1994 onwards was the first vehicle in the Volkswagen Group to be fitted with a navigation system. Visual route recommendations are displayed on a dot-matrix monitor in the dash panel insert.

HAUPTSTRASSE

BAYERN 3 FM1 TP
Audible route recommendations are played back over a separate loudspeaker.

SSP 199-002

This system is also fitted in the Passat from model year 1997 onwards.
RETURN RETURN OFF OFF INFO ENTER INFO ENTER
These systems are operated using a separate operating unit. This unit is located in between the front seats in the A8 and in the central console in the Passat.

SSP 199-003

In both vehicles, the navigation control unit and the CD-ROM drive are located inside the luggage compartment.

FINISH

SSP 199-007
Global Positioning System (GPS) The Global Positioning System (GPS) currently comprises a total of 24 satellites which are evenly distributed over six orbits at an altitude of approximately 20,000 kilometres. They each circle the earth once every 12 hours. With this arrangement, every point on the earth theoretically has radio contact to at least four satellites.

SSP 199-009

Position calculation Each time it is switched on, the Radio Navigation System attempts to receive the signals sent by the satellites. Reception from at least three satellites is necessary for an accurate position fixing. Only then can the position of the receiver be calculated at any point on the earth's surface.

SSP 199-010

Radio traffic
The satellites radio an ID code, their position and a high-precision timing signal earthwards at intervals of one millisecond. The GPS receiver in the Radio Navigation System receives the satellite data and calculates how long the data transmission took by comparing the timing signal with its internal high-precision clock. If the navigation computer receives data from at least three satellites, it is able to calculate the vehicle's position.

SSP 199/011

Reception interference of satellite signals
Reception interference may occur if the satellite transmitter does not have line-of-sight contact with the receiver of the Radio Navigation System or if the satellite signal is reflected off buildings, mountains, etc. In the following situations, the radio link with the satellite may be interrupted or faulty: In - Street canyons - Valleys - Tunnels - Multi-storey car parks This may lead to an inaccurate position fixing or render the system unable to locate the vehicle.

SSP 199-012

Although the Global Positioning System is the primary source of information for the Radio Navigation System, the system is able to make allowance for short periods of reception interference. For this purpose, the direction of travel and distance travelled are only calculated using the information provided by the angle of turn sensor and the wheel speed pulses generated by the ABS wheel sensor.

Comparison with GPS signals is not possible, and position fixings are less accurate when reception is disturbed. As soon as GPS signals can again be received, the previously calculated position is corrected.
Dead-reckoning navigation
The system components of the Radio Navigation System increase the accuracy of position fixing. The navigation control unit calculates the route profile from the signal supplied by the angle of turn sensor for determining changes in the direction of travel to the left/right and the pulses generated by the ABS wheel speed sensor for calculating the distance travelled. Dead-reckoning navigation is the result of the interplay between these two sensors. The navigation control unit compares the route profile with the street map stored on the CDROM several times per second. This comparison process is known as map matching. The accuracy of position fixing can thus be increased to 5m in urban areas and 50m on long, straight country roads or motorways. If the vehicle is located on a road which is not stored on the CD-ROM, the message OFFROAD appears on the display. Map matching cannot be performed then. Therefore, only the straight line distance and the direction to the destination are displayed.

SSP 199-014

km ENTER ruft die Kartendarstellu

ng auf

Vehicle navigation is the overall result of the interplay between satellite navigation and deadreckoning navigation.

Satellite navigation

Vehicle navigation
Satellite GPS antenna and receiver Navigation control unit
Turn angle sensor ABS wheel sensor CD-ROM Navigation control unit

SSP 199/008

How vehicle navigation works
1. The driver enters the desired destination using the operating and function keys.
2. The position of the destination is determined using the street map on the CD-ROM.
3. The navigation control unit calculates the current vehicle position accurate to approx. 100 m using the satellite data it receives. 4. The vehicle position is determined by dead-reckoning navigation accurate to 5m and by comparison with the digital map data stored on the CD-ROM. 5. The navigation control unit calculates the distance, the direction of travel, the change of direction of travel, etc.

+ 100m _

+ 5m _

1023 - + = 3

6. Route recommendations are then output in the form of visual and audible messages.
During the trip, the distance travelled is measured on the basis of the wheel speed pulses generated by the ABS wheel speed sensor and changes of direction sensed by the angle of turn sensor.
8. The system continuously monitors whether the driver follows the route recommendations. 9. The system tells the driver when he has deviated from the recommended route.

When the vehicle changes its direction of travel, it rotates about its vertical axis. The angle of turn sensor detects this rotational movement and informs the navigation control unit. The navigation control unit then calculates the angle of the direction change. In order to distinguish between forward and reverse movement, the control unit receives a signal from the reversing light switch. The distance travelled is still required in order to calculate the curve radius. This is determined with the aid of the wheel speed pulses of an ABS wheel speed sensor.

SSP 199-018

Function of the angle of turn sensor

Rotational axis

The angle of turn sensor is shaped like a tuning fork. The two legs of this element are designed as oscillating bodies. When the ignition is turned on, voltage is applied to the lower piezoelements. They then begin to oscillate. The oscillations are transmitted to both limbs.
Lower piezoelement Direction of oscillation Direction of oscillation

SSP 199-019

Coriolis force

Direction of rotation

Direction of oscillation
When the vehicle changes direction (e.g. when cornering), the so-called Coriolis force acts on the oscillating legs of the sensor. This Coriolis force acts against the direction in which the vehicle is rotating about its vertical axis. The upper parts of the legs, which is already oscillating sideways, bend as a result.

Upper piezoelement

The flexure of the legs is transmitted to the upper piezoelements, thereby generating a voltage in the piezoelement. The navigation control unit can calculate the change in direction of travel from the level of this voltage.

SSP 199-020

Cornering When the vehicle is cornering, the upper sections of the legs are bent by the Coriolis force for as long as the vehicle takes to negotiate the corner. A voltage is produced in the upper piezoelements of the angle of turn sensor. The level of this voltage is dependent on the change in direction of travel. When negotiating a corner from left to right, for example, the sign before the voltage changes.

SSP 199-021

SSP 199-022
Straight-line travel No Coriolis force occurs when the vehicle is driving in a straight line. The upper parts of the legs are not bent and no voltage is generated in the piezoelements.

Rocker button In Radio mode, pressing this rocker button to start automatic local station seek in the direction you are travelling.
Rotary push-button on left Press button to switch ON/OFF Turn switch to control volume

Zieleingabe ist akt FM2

AS/ CD mix button In Radio mode, you can store the 6 stations with the strongest signals using this button. The stations are saved to the station keys on the set waveband - TP, FM or AM. The memory locations are allocated automatically and exclusively on memory levels FM2, AM2 and TP2. - In Audio CD mode you can play tracks at random by pressing this button. If a CD changer is connected, you shuffle-play the CDs by pressing this button. -

D-Radio BFBS 1 NDR 2

Scan button In Radio mode, all the station pre-sets can be played briefly by pressing this button. To pre-set a station, press this button again while the station is playing. In Audio CD mode, you can briefly play all the tracks on a CD by pressing this button. To select a track, press this button again while the track is playing.
Multifunction display Can be swivelled horizontally and vertically.
Button for changing over to night display mode When you switch the low beam headlight on or off, the display automatically changes between daytime and night display modes. You can switch over to the other display mode by pressing this button. A photocell which is located below the button controls display brightness.
Flashing diode of anti-theft device After entering the four-digit code number, the diode flashes if the ignition key has been removed from the ignition lock.

Button NAVI

Select preceding menu or basic menu

ktiv TP

Right-hand rotary push-button - Turn: - Press:
to select the menu fields and change the setting scales. to confirm the menu fields.

SOUND button

For selecting the sound menu for the settings for bass and treble, the sound field (Balance and Fader) and the Volume Setup menu (basic settings for switch-on volume, traffic announcements (TIM), car phone, navigation and GALA).

AUDIO button

SSP 199-033
For selecting the basic audio menu. Tone source selection: Audio CD (CD changer); Traffic radio TP1 and TP2; VHF FM1 and FM2; Medium Wave MW1 and MW2; Long Wave LW1 and LW2; other tone sources AUX; Radio mute Station keys 1-6 In radio mode, a single station can be assigned to each button from the six wavebands TP, FM, AM at memory levels 1 and 2. Storing a station: Select the station using the rocker button. To store a station, keep one of the station keys pressed until the programme switches to mute and a signal tone sounds. To select a station, press the corresponding button briefly. In Audio CD mode, select the CD in the tray by pressing this button. Buttons 1-6 correspond to the order of the CDs in the autochanger tray.

Self-diagnosis of the radio unit module
The address word for the radio unit is 56. The following functions can be selected: Interrogate navigation system version 01V.A.G EIGENDIAGNOSE 1. SCHNELLE DATENBERTRAGUNG HELP
Interrogate radio version Interrogate fault memory Actuator diagnosis Erase fault memory End of output Encode radio functions Read measured value block

020305060708-

9 C O Q V.A.G 1551

HELP PRINT

VAS 5051

SSP 199-034

02 - Interrogate fault memory Faults in the Radio Navigation System are saved to the fault memory by the self-diagnosis. These faults can be displayed on the monitor of the V.A.G 1551/52 or diagnosis system VAS 5051:
Source of fault Vehicle power supply, terminal 30 NO contact at ignition switch -DFront loudspeaker Rear loudspeaker Radio display output, dash panel insert Connection to CD changer Radio antenna Control unit Control unit
Fault message Signal too low Open circuit Open circuit/ short circuit Open circuit short circuit No communication No communication Open circuit Short circuit Wrongly encoded Defective
Possible effect Poor or no function No automatic switch-on after turning ignition off and on again Loudspeaker not functioning Loudspeaker not functioning Display NOK CD changer function NOK No or poor reception Radio functions or sound NOK No radio operation possible
The Workshop Manuals are updated after technical modifications are made. Please use the vehicle-specific Workshop Manuals as an aid to carrying out self-diagnosis.
03 - Actuator diagnosis The loudspeakers and the display in the dash panel insert are tested by the actuator diagnosis.
Rapid data transfer 03 - Actuator diagnosis
At the same time, the functioning of all loudspeakers is tested with a test tone. The text DISPLAY TEST appears on the display in the dash panel insert. The display switches between normal and inverse video (white on black and vice versa) in 4-second intervals.
07 - Encode radio functions The following radio functions can be encoded: - Sound adaptation to vehicle type - Number of loudspeakers - DSP sound system - CD changer The code number can appear as follows: 01 Code number for sound adaptation 4 loudspeakers (channels) 2 code number for DSP sound system 7 Code number for CD changer, second display and active roof antenna

Rapid data transfer Q 07 - Encode radio functions
08 - Read measured value block The input signals and voltages required for operation of the Radio Navigation System are continuously monitored by the self-diagnosis. The state of the input signals in the measured value blocks can be displayed for troubleshooting purposes.
Rapid data transfer Q 08 - Read measured value block
Example: Measured value block GALA signal 2 Supply voltage in volts 3 Dimmer for illumination in % 4 NO contact closed or open
Operation of the VW navigation unit
Loading tray for the navigation CDROM INFO button To select the full destination address display: - Momentary location, - Current destination and - Estimated time to journey end are displayed. Repeat last voice message.

CD eject button

Rotary push-button on left Press button to switch ON/OFF Turn knob to control volume

WESTSTR

MITTELST ENTER ruft die Kartenda
Button for saving vehicle's momentary position - The vehicle's position is saved as a flag destination If you discover, say, a point of interest en route, you can store this position as a flag destination by pressing this button. Later, you can use this flag destination to enter your destination. This way, you can be sure you will find the point of interest easily and without searching. Only one flag destination can be stored in memory at one time with this button. Press the button again, and the flag destination will be overwritten by a new one. You can store the flag destination permanently in the destination memory by selecting the basic navigation menu.
Multifunction display Can be swivelled horizontally and vertically. Button for changing over to night display mode When you switch the low beam headlight on or off, the display automatically switches between day and night display mode. You can switch over to the other display mode by pressing this button. A photocell which is located below the button controls monitor brightness. Flashing diode of anti-theft device After entering the four-digit code number, the diode flashes when the ignition key is removed from the ignition lock. NAVI button
For selecting navigation system basic menu: Destination input Route options Start of navigation Destination memory Options MERIAN Scout guidebook with sections on: - Overnight accommodation - Places to eat and drink - Tourist information

Rapid data transfer Q 08 -Read measured value bock
Rapid data transfer 10 - Adaptation
Audi Plus Navigation System Operating the VW radio unit
Arrow keys Radio mode: Automatic local station seek. To set manual seek, press both buttons simultaneously. CD mode: Touch button to change track; for fast forward/rewind, press button for longer.
Arrow keys Radio mode: Select station memory. To store the pre-set station, press the > button for longer than 2 sec. CD mode: Select CD in auto changer. TIM playback: Scroll through TIM memory.
TP (Traffic Program) Touch button to activate traffic radio Press again to play back stored TIM traffic announcements. Press for >2 sec. to deactivate traffic radio.

Einschalt

TA-Min Telefon Navigation Min GALA
FM (frequency modulation) Select VHF band, select between FM1 and FM2 by pressing several times.
Rotary push-button on left Turn button to switch ON/OFF and control volume. Press button to switch RNS ON/OFF. AM (Amplitude Modulation) Select MW band, select between AM1 and AM2 by pressing several times.
AS (Autostore) Autostore function: Automatic storage of the six strongest FM and AM stations on the waveband in memory level 2. Touch button to select and exit the Autostore level. Press for longer to activate Autostore Seek function. Radio/CD Switch between Radio and CD mode.
Button for changing over to night display mode When you switch the low beam headlight on or off, the display automatically changes over between the daytime and night display modes. You can switch over to the other display mode by pressing this button. A photocell which is located below the button controls monitor brightness.

MODE button +

ndern Last
Set special functions: RDS, Video, Audio, TV playback. Example: You can specify whether you want the map excerpt on screen to be enlarged automatically at road junctions for better orientation.
Right-hand rotary push-button

ndern Stumm

Turn button to select a menu item. Press button to confirm a menu item.
Enter key Select preceding menu or basic menu.

SSP 199-041

TONE button Multifunction display Can be swivelled horizontally and vertically. Set Bass, Treble, Balance, Fader. Select menu for volume setup (GALA, car phone, Navigation, TA traffic announcement).
The Audi-self-diagnosis procedure is identical to the VW self-diagnosis procedure.
Audi Plus Navigation System Operating the navigation module
Button for changing over to night display mode When you switch the low beam headlight on or off, the display automatically changes between daytime and night display modes. You can switch over to the other display mode by pressing this button. A photocell which is located below the button controls monitor brightness.

FM1 AS 3

ALTMHLTAL INGO
Rotary push-button on left Turn button to switch ON/OFF and control volume. Press button to switch RNS ON/OFF.

5km GPS..

The Audi self-diagnosis procedure is identical to the VW self-diagnosis procedure.
Button for saving vehicle's momentary position The vehicle's position is saved as a flag destination. Loading tray for the navigation CD-ROM If you discover, say, a point of interest en route, you can store this position as a flag destination by pressing this button. Later, you can use this flag destination to enter your destination. This way, you can be sure you will find the point of interest easily and without searching. Only one flag destination can be stored in memory at a time with this button. When you press the button again, the flag destination is overwritten by a new one. You can store the flag destination permanently in the destination memory by selecting the main navigation menu.

BAYERN 3

ZOOM button

INFO MODE

Select scale of map display.

LSTADT

6N 300

Traffic jam button

This function allows you to re-route the vehicle in order to bypass a traffic jam. In the menu, specify whether you want the navigation system to plan a short, medium-length or long alternative route for you.

SSP 199-042

The following screen display appears: 1 - Antenna test interface 2 - Antenna -1- with ON and OFF function 3 - Antenna -2- with ON and OFF function 4 - Antenna -3- with ON and OFF function 5 - Antenna -4- with ON and OFF function

ANT - CRTL

ANT ANT ANT ANT ANT ANT ANT ANT

11- - - - - - -

- - 22- - - - -
- - - - - - - - 3- 3- - -4 - -4

ON. ON. ON. ON.

OF OF OF OF

SSP 199-044

The remote supply to the antenna amp of the selected antenna can be connected or disconnected by turning the rotary push-button on the right. When the remote supply to an antenna is disconnected, TV picture quality must deteriorate noticeably. This facility to connect and disconnect the power supply to each antenna also allows the associated antenna amp to be tested.
If picture quality does not deteriorate when the remote power supply to an antenna is disconnected, it is possible that there is an open circuit in the antenna lead or the antenna amp is defective. This can be established by measuring the voltage on the inner conductor of the coaxial cable. If there is no voltage detected, there is an open circuit in the antenna lead.
The Workshop Manuals will be updated after technical modifications are made. Please use the vehicle-specific Workshop Manuals as an aid to carrying out the function test.
Differences between the VW and Audi Radio navigation systems
Navigationssystem CD Change Control

TIM INFO NAVI

ALTMHLTAL INGOLSTADT

SSP 199-045

SSP 199-046
The AUDI system differs from the VW system the following respects:
Front panels differ according to vehicle type. Layout and function of the controls. There is no TIM button; to select the TIM function, press the TP button twice. There is no SCAN function. A single button is used for switching between Radio and CD mode. The station pre-sets are selected by pressing the station selection button. There is a map zoom button. In the case of the VW Radio Navigation System, this is done by selecting the menu item ZOOM in the map submenu. To eject a CD, select menu item in the main navigation menu. In the case of the VW Radio Navigation System, a CD can be ejected at the touch of a button.
In the case of the Audi Plus Navigation System, the TV receiver is integrated in the system. It is housed in the left-hand stowage compartment in the boot. In the saloon and Avant, the TV antennas are integrated in the rear window or in the rear side windows (see above).
Possibilities for connection to the VW/Audi Radio Navigation System
Located on the rear panel of the equipment are terminals for: 6-disc CD changer Digital Sound Package (DSP) by NOKIA or BOSE TV receiver by FUBA (AUDI) Video Recorder (AUDI) Playback of car phone

CD changer

TV receiver and /or video recorder (currently available with AUDI only)

Einschalt AS AM

D-Radio

km MITTELSTRASSE

ndern ruft die Kartendarstellung auf Last ENTER
TA-Min Telefon Navigation Min GALA Lautstrke Setup
Digital Sound Package (DSP)
Playback of telephone conversation over the loudspeakers
In the Audi Plus Navigation System, the TV receiver is integrated in the system. It is housed in the left-hand stowage compartment in the boot.

SSP 199/047

Service
Releasing the VW/AUDI Radio Navigation System
The Radio Navigation System is locked in the installation compartment. It can be removed using the four hooks of releasing tool 3344 A: Insert the hooks in the four openings. Then pull the Radio Navigation System from the compartment by the hooks.
Releasing tool 3344 A, contains 4x:

SSP 199-048

ssyste

m CD C ange Contr

AUD IO

SSP 199-049

In order to avoid damage, do not apply pressure to the multifunction display or the buttons during installation.

Test your knowledge

More than one answer may be correct!

V V V V V V V V V

What does satellite navigation mean? a. b. c. Controls the satellite in outer space Determines the speed and direction of travel of a vehicle using satellites Can determines the position of a vehicle by means of satellites
2. What components are required to carry out vehicle navigation ? a. b. a. Angle of turn sensor ABS wheel speed sensor Switch for reversing lights
3. How many satellites must at least be received by the Radio Navigation System in order to make an accurate position calculation possible? a. b. a. One satellite Three satellites All 24 satellites

V V V V V V

4. What does dead-reckoning navigation mean? a. b. c. The combination of direction of travel and speed for navigation purposes The interplay of the signals generated by the angle of turn sensor and of the ABS wheel speed sensor The radio is coupled to the navigation system to form a unit

What is the function of the angle of turn sensor? a. b. c. The angle of turn sensor records the angle of a single change of direction The angle of turn sensor prevents the vehicle from skidding Using the angle of turn sensor, the navigation control unit is able to calculate the curve radius
6. What does map matching mean? a. b. The calculated vehicle position is compared with the street map stored on the CD-ROM The street maps stored on the CD-ROM are corrected continuously

Solutions:

6.a 5.a, c 4.b 3.b 2.a, b, c 1.b,c
For internal use only VOLKSWAGEN AG, Wolfsburg All rights reserved. Technical specifications subject to change without notice 840.2810.18.20 Technical status 07/98
Y This paper is produced from
non-chlorine-bleached pulp.