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CetraC - Driving

Secure, low latency multiprotocol gateways and switches for tomorrow's demanding electronic automotive architecture

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Driving with CetraC

The emergence of autonomous driving will further increase the need for car manufacturers to ensure permanent safety at each level of the onboard electronic architecture, including networking. Highly autonomous vehicles include high resolution sensors, which will generate large amounts of data, and require low latency architectures.

Ethernet and its derivatives (AFDX, automotive Ethernet) are natural candidate technologies that address market needs with determinism, safety and security. CetraC is the foundation to build a secure embedded networked architecture, based on automotive Ethernet or CAN networks. Other protocols can be added on demand.[/vc_column_text][/vc_column][vc_column column_padding=”no-extra-padding” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ width=”1/3″ tablet_text_alignment=”default” phone_text_alignment=”default”]

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The concept:

CetraC connects networks or calculators, using standard modular components positioned whereever determinism is required i.e., I/O connection devices such as sensors, network switching, processors and controlling units.

CetraC guarantees a safe, secure and deterministic behavior at system level by:

  • establishing data exchange contracts with each connected user
  • validating the configuration with a dedicated tool using modelling and simulation based on the overall architecture
  • guaranteeing the transit of critical data by enforcing the user rules imposed by the configuration
  • inspecting all data frames that go through without additional latency
  • distributing time to external components if necessary, without relying on synchronization
  • delivering safely and securely, in a deterministic way, the data that have been prioritized, whatever the context

Typical throughput is 1 Gbps ports and 10 Gbps backbone and typical latency is 2 microseconds for a 64 bytes data frame. The rest of the data will be delivered on a best effort basis.

CetraC also allows to easily multiplex all the necessary sensors on a limited number of networks, avoiding wire harness overcost. Overall CetraC allows smooth integration of existing networks such as CAN, opening the door to incremental steps beyond existing electronic architectures.[/vc_column_text][/vc_column][/vc_row]