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8.2
Electronic boards
8.2.1 Description
You can see below the boards layout along with a short description of their role and
logic of operation.
•
Main Board - CPU / G30202041
•
Inverter Board - G30221000
•
Turbine Unit Board - G80412000
•
Encoder board - G302140012
•
Battery charger board - G30215040
8.2.2 CAN : Controller Area Network
Controller Area Network marking, used to indicate a system developed by Bosch in
order to overcome the problem of the abnormal increase of electrical cables in motor
vehicles caused by the increasing number of functions managed by the electronics.
CAN allows you to overcome the limitation of assigning a single function to each wire
of the electric system, adopting a multiplex network connection that connects the
various control units, transmitting a large number of commands and information on a
single line (also called data bus).
This is possible through serial transmission, in quick sequence: in just a second can
be transmitted up to one million bit, then decoded by the microcomputers placed in
various points of the vehicle.
For a system that adopts such a system, you only need four cables: ground, supply
with battery voltage and two wires to send the signals. One of the greatest
advantages is that of ensuring communication between the various boards,
coordinating shared actions that imply data exchanges over very short periods of
time, the confirmation that you have received and correctly interpreted the
information, errors reporting.
The bus sends the data, giving priority to the most important ones.
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