The AVN system provides improved search function and easy
access for drivers by offering simplified system operation experience
and integrated display for multimedia and vehicle information.
The system is basically composed of a keyboard for the
operation of combined function, LCD monitor, a head unit with Bluetooth
handsfree calling, voice recognition and navigation, music amplifier and
the media unit that connects with other outside devices.
1.
Simplification of user interface : the multimedia and car information are displayed on the monitor.
2.
Networked electronic parts : Efficient information transmission through CAN communications.
3.
Up-to-date technologies integrated :
•
Voice recognition : This function recognizes the user''s
voice commands to manipulate the system.The user can issue voice
commands to operate AV system, Bluetooth phone and navigation.
•
Bluetooth hands-free calling : This is compliant with the
international wireless communication standards and uses bluetooth
technology adopted in most currently launched mobile phones. Once
connected, the driver is automatically connected every time he/she gets
in the car.
•
USB connectivity : Outside music player devices such as USB
memory stick or Walkman can be connected and played with the car
speakers.
System Block Diagram
Limitations of the Navigation System
GPS Signal Reception State
As the GPS satellite frequency is received/transmitted in
straight lines, reception may not work if hiding devices are placed on
or near the GPS antenna or when traveling in the following locations.
•
Tunnels
•
Basement parking structures
•
Underneath an overpass
•
Roads within forested areas
•
Areas near high rise buildings
•
Roads within canyons
Vehicle Position Display
1.
If multipass errors occur due to reflections from buildings
or related causes, the current position mark on the navigation may
differ from the actual position of the vehicle.
2.
The position of the vehicle on the navigation may be
different from the actual position if the vehicle is in the following
status, however, this will automatically be adjusted by map matching or
GPS information after driving a short distance. (This may take a several
minutes in certain cases.)
•
When driving on a Y-shaped road with a narrow angle, the current position may be displayed in the opposite direction.
•
If the vehicle is loaded onto a car transport vehicle, the
current position mark may be stalled on the last position prior to
loading.
•
When driving on a spiral-shaped road.
•
When driving in mountainous regions with sharp turns or sudden brakes.
•
When entering a road after having been in an underground
parking structure, building parking structure, or turntable with
multiple rotations.
•
When the tires have recently been replaced (Especially upon use of spare or studless tires)
•
If the battery terminal is removed.
•
When driving in city streets, the current position may be displayed on the opposite side or on an off-road position.
•
When changing the zoom level from the maximum zoom in level
to a different zoom level, the current position mark may be displayed on
a different road.
•
When driving in heavy traffic with frequent stops or intersections.
•
When driving under slippery conditions, such as heavy sand, snow, etc.
•
When driving with tire chains installed.
•
When using a tire with an incorrect size specification.
•
When the tire pressures of all 4 tires are different from each other.
•
When the replacement tire is a worn or used tire (Especially studless tires having passed a 2nd seasons, etc.)
•
When driving near high-rise buildings
•
If a roof carrier has been installed
•
When driving under high speeds or having calculated a long-distance route.
Route Guidance
Suitable route guidance may not be available due to search conditions or driving conditions.
•
Guidance to go straight may be given while driving on a straight road.
•
Guidance may not be given even when having turned at an intersection.
•
There are certain intersections in which guidance may not occur.
•
In some cases, a route guidance may signal the driver to enter a no entry zone (No entry zone, road under construction, etc.)
•
Guidance may be given to a location near the actual
destination if roads to the actual destination do not exist or are too
narrow.
•
Wrong voice guidance may be given if the vehicle deviates
from the designated route (e.g. If it turned at an intersection wherein
the navigation guided to go straight.).
•
Missing or incorrect map data may cause unavailability of the route guidance.
Route Re-calculation
The following phenomena may occur after conducting route recalculation.
•
Guidance may be given to a different position from the current position if the vehicle was turning at an intersection.
•
Route recalculation may take longer when driving under high speeds.
•
A route guidance signaling for a U-Turn in a No U-Turn zone may occur.
•
In some cases, a route guidance may signal the driver to enter a no entry zone (No entry zone, road under construction, etc.)
•
Guidance may be given to a location near the actual
destination if roads to the actual destination do not exist or are too
narrow.
•
Wrong voice guidance may be given if the vehicle deviates
from the designated route (e.g. If it turns at an intersection wherein
the navigation guided to go straight.).
Components
Connector Pin Information
Connector Pin Information
No.Connector AConnector BConnector CConnector D1-MM CAN (+)Chassis CAN (-)GND2--Chassis CAN (+)GND3-- (Parking)--4---GND5M GND (SP ...