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SDV-Enabled endpoints

In Zonal Control topologies, the endpoints are remote boards that are MCU-light or MCU-less, often based on Remote Control Protocol (RCP) via Ethernet 10BaseT1S, CAN FD Light, or other lower-cost protocols. Control is implemented by the Zonal Control Unit MCU or by Zonal I/O aggregators. This architecture allows OEMs to save money by reducing the number of MCUs. These boards contain mainly actuators and sensors. From a software perspective, standardization reduces complexity, improves system scalability, and enables upgradability and cloud access, supporting the concept of the Software Defined Vehicle (SDV).

Products and solutions

CAN-FD protocol

The CAN-FD protocol (CAN with flexible data-rate) is an extension of the classical CAN (CAN 2.0) protocol. CAN‑FD is the CAN 2.0 successor. It efficiently supports distributed real-time control with a very high level of security. CAN-FD was developed by Bosch and standardized as ISO 11898-1:2015 (suitable for industrial, automotive, and general embedded communications).

The Ethernet 10BASE-T1S is a new communication protocol specified by the Open Alliance RCP-TC18 and IEEE 1722B standards. Major car makers and Automotive Tier 1 suppliers are part of these technical committees.

Ethernet 10BaseT1S

 The OPEN Alliance TC18 specifies a Remote-Control Protocol (RCP) as a lightweight client-server communication technology that allows application software running on a host to remotely control a peripheral connected to a bridge device via an Ethernet link. In this context, it is suitable for communication between ZCU, acting as Client, and remote endpoints acting as server.