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automotive electronic systems - Coggle Diagram
automotive electronic systems
embedded electronic
electrical diagram
interaction of sensors and effectors
possibility of interference
systems architecture
centralized architecture
desvantagens
excess yarn
difficulty of maintenance
cabling converge on the ecu
main advantage
simple hardware
main function
receive and send signals to sensors and effectors
distributed architecture
benefits
little cabling reducing cost
reduction of manufacturing time
less possibility of failures,
easy expansion of the system
communication between ECUs
disadvantages
problems with security software
reconcile communication protocol with communication speed
minimum cost / meet all functions / maximum reliability
main function
more independent system, communication between the ECUs
CAN (controller area network)
function
communicate between the ECUs so that each control unit meets its needs depending on each control unit
protocols
start: 1 bit
status: 11bit priority definition
control: 6 bits information received or sent
data: information transmitted
check: 16 bits to detect failures
conformation: 2 bits indicate data received correctly
end: 7 bits indicate the end of transmission
OBD II connector / for signal tracking/fault diagnosis
OBD II connector
