10Base-T1S Automotive Ethernet Integration for Low-Speed Controls

Architected and executed proof-of-technology (PoT) programs to introduce 10Base-T1S single-pair Ethernet into Magna’s embedded platforms—successfully demonstrating its viability for low-speed motor control and peripheral communications.

Project Overview
it, server, server cabinet, network, cable, patch cord, network cable, rj45, data processing, lan, network plug, connection, patch, macro, hardware, edp, ethernet, computer, company, network connection, nsa, wiretapping, server, server, server, server, network, network, lan, lan, lan, lan, lan, connection, connection, ethernet, computer

This project pioneered the adoption of 10Base-T1S, a single-pair Ethernet technology designed for low-bandwidth, deterministic communication between edge nodes in next-generation zonal vehicle architectures.

I led the effort to bring the technology into the organization—from early architecture planning and vendor engagement to hands-on PoT execution.
The goal was to evaluate 10Base-T1S as a replacement for legacy CAN and LIN networks in low-speed control domains, improving scalability, flexibility, and system cost.

The work extended beyond networking—integrating motor-control functions and peripheral interfaces such as I²C, SPI, ADC, GPIO, and PWM over the same communication backbone.
Comprehensive benchmarking was performed against traditional CAN and LIN architectures to assess latency, determinism, and cost trade-offs, leading to documented performance advantages and proposed next-phase developments.

Key Details / Outcomes

Proof of Technology: Successfully demonstrated motor-control nodes operating over 10Base-T1S with deterministic response times.

Performance Benchmarking: Compared throughput, latency, and resource utilization against CAN and LIN, revealing measurable efficiency and integration gains.

Cost & Architecture Optimization: Proposed pathways for simplifying wiring harnesses and reducing ECU count through network consolidation.

Feature Expansion: Added support for sensors and control peripherals (I²C, SPI, ADC, GPIO, PWM) to validate system-level interoperability.

Challenges & Learnings
  • Adapting traditional control-loop designs to a packet-based communication model.
  • Handling timing accuracy and PLCA slot scheduling for real-time response.
  • Validating coexistence with higher-speed TSN networks within zonal gateways.
  • Driving organizational adoption through demos, documentation, and knowledge transfer.

Exploring low-speed Ethernet, distributed control, or zonal architecture adoption?

Contact Me