Mazda 6 Training Manual page 287

NAVIGATION FUNCTION
Outline
• A vehicle's position is measured by a hybrid method of autonomous navigation (using yaw-rate signals from the
gyro sensor and vehicle speed signals from the DSC unit (with DSC) or ABS/TCS HU/CM (with ABS/TCS) and
GPS navigation (using signals from GPS satellites). Accurate detection of the vehicle's position is possible
based on the adoption of a map-matching function which specifies the vehicle's position as compared with the
map data read from the DVD-ROM and the vehicle’s position measured from autonomous navigation and GPS
navigation.
• Guidance to destination is provided via display of the recommended route on the map screen, as well as voice
messaging guidance at intersections and points of divergence.
• Based on inputted signals and information on the DVD-ROM, the following features are available:
— Destination can be selected based on address, intersection, POI (Point of Interest), history, memory or
map.
— Route information is available in map and guide mode.
— Voice guidance and menus are available in si languages.
— A map screen that displays maps in twelve steps with scales from 100m to 500km.
— A map screen that displays routes according to Shortest Route and Avoid Motorway functions.
— A detour function which provides three routes to select from based on streets selected to avoid, up to five
via points and calculation of set detour distance.
— A wide variety of preferential settings are available.
Block Diagram
.
1 Car-navigation unit
2 GPS antenna
3 Signal from satellite
4 DSC unit (with DSC) or ABS/TCS HU/CM (with
ABS/TCS)
5 Vehicle speed signal
6 Detection of current measured position
7 Correction by GPS
8 Detection of vehicle travel distance
AUDIO AND NAVIGATION SYSTEM
9 Detection of vehicle’s position
10 Map matching
11 Yaw-rate signal
12 Gyro sensor
13 Map data
14 DVD-ROM
15 LCD unit
16 Display
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