Automotive Ethernet: Future of Connected Vehicles
Talkat Embedded Linux Conference @ Open Source Summit North America 2022 · on Wednesday, 2022-06-22· at 11:50· Griffin Hall (Level 2), JW Marriott Austin, 110 E 2nd Street Austin, TX 78701·
summary
Automotive Ethernet uses single‑pair PHYs to cut wiring and costs while delivering multimedia and sensor links up to 100BASE‑T1 and 1000BASE‑T1 (100 Mbps/1 Gbps over short runs), supports TSN for sub‑microsecond sync and deterministic latency, and is supported in Linux via linuxptp (ptp4l, phc2sys, pmc) plus traffic qdiscs: SO_TXTIME + ETF qdisc, CBS and APRIO for scheduled transmission. Implementations reduce harness weight but face EMI, security, certification and ECU timing/test complexity.
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chapters (15)
- 0:00Intro
- 2:28Automotive Systems and Network
- 3:37Current Trends in Automotive Networks
- 6:21The Future Requirements
- 7:16Motivation behind Automotive Ethernet High Bandwidth requirement
- 8:37Why not Conventional Ethernet? Higher number of wires
- 10:07History and Evolution of Automotive Ethernet
- 12:01Protocol formats Link Layer Frame same as conventional Ethemet
- 14:40Different Technologies
- 23:24Time Sensitive Networking (TSN)
- 30:19Time Synchronization
- 32:21Traffic Scheduling
- 34:33Switches and switched end devices
- 36:35Summary of TSN in Linux
- 37:24Automotive Ethernet PHY
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