FlexRay vs CAN | Automotive Interview | Skill-Lync Resources
Medium Automotive Electronics Vehicle Networks

Compare FlexRay with CAN for automotive networking applications.

Answer

FlexRay offers higher bandwidth (10 Mbps vs 1 Mbps CAN), deterministic time-triggered communication, and fault tolerance through dual channel operation. It uses TDMA scheduling unlike CAN's event-triggered approach. FlexRay is used for safety-critical and bandwidth-intensive applications like drive-by-wire, active suspension, and advanced chassis control. However, it is more complex and expensive than CAN. CAN remains dominant for general networking while FlexRay is used where determinism and bandwidth are critical. Automotive Ethernet is now often preferred over FlexRay for high-bandwidth needs.

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