The recent development trend of automobile industry puts forward higher requirements for functional safety.

For example, autonomous driving requires the car to take over driving tasks and make key decisions. Autonomous driving is a unique opportunity for both Oems and end users, but new solutions are needed to meet the high level of safety required.

These changes are changing the architecture of in-vehicle networks and driving architectural partitioning, where vehicle functions are distributed across the network and more dependent on communication capabilities.

Compared with previous domain - based subnets, functional security is more important in communication networks.

As vehicle functions become more decentralized, the role of on-board networks in ensuring functional security and availability of systems is increasing. Modern automobile needs highly reliable and high speed data communication backbone network, and backbone network needs to be realized through automobile Ethernet.

Ethernet components such as switches and physical layers need to integrate advanced monitoring and diagnostics to achieve system security and availability goals.

Advanced monitoring and diagnosis capabilities at the physical level improve fault response at the system level. The time required to detect faults is minimized, and the system response time is shortened. They also enhance system-level fault location, as the physical layer flags any issues that might prevent them from functioning properly.

The combination of these two approaches helps to respond to system-level failures in the shortest possible time. Network IC functions can prevent, predict and respond to failure situations, making a significant contribution to functional safety.

Source: Some content from [NXP Inn], thank you.