Can System Outline; Vehicle Can System - Mazda 6 Training Manual

CAN SYSTEM OUTLINE

Time Division Multiple
• For information echange between the electrical modules in the conventional system, a wire connection was
necessary for each information signal. However, by sending the different signal at varying times over one
channel, it is possible to send a large amount of information via a small harness.
• In the conventional, non-multiple system, in order to control the illumination of the five bulbs, one switch and
one channel was necessary for each bulb. For bulbs B and C to illuminate, switches B and C must be ON and
electricity must flow through the channel. With the time multiple system, this can be done through one
channel. The channel is comprised of five data signal transmitters which transmit either “0” or “1” signal to
indicate for a bulb to turn ON or OFF. For eample, to illuminate bulbs B and C, transmitters B and C transmit a
“1” and transmitters A, D, and E transmit a “0”. When the receiver receives these signal, bulbs B and C
illuminate.
.
1 Non-multiple system
2 Time division multiple system
3 Data
End Of Sie

VEHICLE CAN SYSTEM

• By rearranging the multiple signal, common information between the CAN system-related modules is
transmitted and received through the multichannel.
• The signal transmitted by one CAN system-related module is sent through the multichannel to all the CAN
system-related modules, but only the concerned module(s) receives the signal and performs the appropriate
operation (e. light illumination, fan operation).
.
1 Conventional system
2 Electrical module
T–8
MULITIPLE COMMUNICATION SYSTEM
4 Each signal is transmitted one by one through the
channel as it is received.
5 Each signal is output one by one it is received from
the channel.
3 CAN system
4 CAN system-related module
A6E811155430T06
A6E8111T005
A6E811155430T07
A6E8111T006