BS ISO 10681-2:2010

This standard BS ISO 10681-2:2010 Road vehicles. Communication on FlexRay is classified in these ICS categories:

• 43.040.15 Car informatics. On board computer systems

This part of ISO 10681 specifies the requirements for a communication protocol tailored to meet the requirements of FlexRay-based vehicle network systems as specified in the FlexRay Communications Systems Protocol Specification. As the communication protocol combines the network layer and transport layer functionality (OSI layers 3 and 4), this part of ISO 10681 does not explicitly distinguish between these layer services.

The technical features of this communication protocol are as follows:

• transmit messages with known data length;

• transmit messages with unknown but finite data length;

• additional acknowledgement with retry mechanism;

• routing data on the fly;

• support of dynamic frame length.