New industrial networks in cars
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12-Sep-2014 -
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Transcript of New industrial networks in cars
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Presented by :
Wissam Kafa
Supervisors :
Dr.Michel AlSaba
Dr.Adel Al kafery
Mr.Fahmi Ammareen
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New Industrial Networks in Cars
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The Outlines Introduction of the Industrial Networks
Real Time Systems
Event and Time Triggered Systems
The Industrial Networks Management
The FlexRay Protocol
Conclusion
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The Outlines Introduction of the Industrial Networks
Real Time Systems
Event and Time Triggered Systems
The Industrial Networks Management
The FlexRay Protocol
Conclusion
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Introduction of the Industrial Networks
What are the Industrial Networks? Networks that replace the Mechanical
parts in a system with electronic ones.
X-by-wire systems
Especially in the automotive systems
Characteristics Safety and reliability
High speed data transmission
Cost effective
Easy to upgrade the system
Wires
Sensors and
Actuators
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Industrial Network in an automotive system
Industrial Networks Applications in a car
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The Outlines Introduction of the Industrial Networks
Real Time Systems
Event and Time Triggered Systems
The Industrial Networks Management
The FlexRay Protocol
Conclusion
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Real Time Systems 1- Soft Real Time Systems
EX: windscreen wipers system
2- Hard Real Time Systems
Safety critical systems
EX: airbag deployment system
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The Outlines Introduction of the Industrial Networks
Real Time Systems
Event and Time Triggered Systems
The Industrial Networks Management
The FlexRay Protocol
Conclusion
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Event and Time Triggered Systems
Event Triggered systems :
All the activities are invoked by the occurrence of an event
Dynamic schedule
Used for soft real time systems
Time Triggered systems:
Static schedule
Deterministic systems
Safety critical systems
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The Outlines Introduction of the Industrial Networks
Real Time Systems
Event and Time Triggered Systems
The Industrial Networks Management
The FlexRay Protocol
Conclusion
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The Industrial Networks Management
Several Protocols are used like : CAN (Controller Area Network)
TTP (Time Triggered Protocol)
TTCAN
FlexRay
Several Fault Management Technique:
Fault Avoidance
Fault Removal
Fault Detection
Fault Tolerance(Especially in FlexRay)
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The Outlines Introduction of the Industrial Networks
Real Time Systems
Event and Time Triggered Systems
The Industrial Networks Management
The FlexRay Protocol
Conclusion
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The FlexRay Protocol: FlexRay Consortium in 2000
BMW X5 in 2007
Event and time triggered
Fault tolerance
o Redundancy
o independency
Data rate :
2 channels bus: up to 20 Mbps
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A FlexRay Network
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A FlexRay Node
Figure 3: FlexRay node
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Flexibility of the FlexRay
Passive BusActive StarMixed
Several topologies are possible
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Flexibility of the FlexRay
FlexRay cycle17/20
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The Outlines Introduction of the Industrial Networks
Real Time Systems
Event and Time Triggered Systems
The Industrial Networks Management
The FlexRay Protocol
Conclusion
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Conclusion The Industrial Networks are replacing the
traditional components in the automotive industry.
CAN protocol has reached its performance limits
TTP protocol does not have the required Flexibility
TTCAN protocol , does not have required safety and data transfer rates.
The FlexRay focus on today’s Automotive industry needs.
FlexRay offers the best compromise between the other protocols
Finally
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