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FlexRay - Features | Cypress Semiconductor

FlexRay - Features

 Background |  Overview |  Features |  In-car Communication Protocol |  Target applications |  Data transfer method |  Difference with CAN |  Internal configuration of a node |  Electronic signals |  Bus Guardian |  Topology |  Segment configuration |  Protocol |  Status transition |  Error control |

FlexRay ASSP

FlexRay has three major features.

  1. In-car LAN communication for X-by-Wire (-> CAN limit)
    • It has the data transfer method that transfers data periodically as a time trigger protocol
    • The maximum transfer rate of communication is 10 Mbps.
  2. High-reliability-oriented communication protocol. Response to X-by-Wire application
    • Redundant communication. It enables fully-duplicated network configuration.
    • It enables schedule monitoring by hardware.
  3. Support of flexible topology
    • FlexRay can support various types of topologies, such as Bus-type, Star-type, and Hybrid-type.
    • The segmentation of FlexRay is configured in combination of the fixed-length static segment that sends and receives messages with the fixed time trigger method and the dynamic segment that sends and receives messages with the flexible time trigger method
 Example of topology configuration (Hybrid)

Example of topology configuration (Hybrid)

- Note -

Some parts of this site show only the outlines of the actual FlexRay standards to make them easily understood.