industry news
Subscribe Now

Excelfore adds Time Aware Shaper to Ethernet TSN protocol stack for in-vehicle networks

Fremont, California – February 6, 2019 Excelfore, an enabler of smart mobility networks, announces a working Time Aware Shaper (TAS) for Ethernet TSN networks.

As in-vehicle networking continues to grow in importance, Ethernet is becoming an increasingly popular platform providing secure, high-speed, inexpensive solutions. To meet automotive requirements for deterministic network behavior, new protocols must be added onto Ethernet stacks to provide Audio/Video Bridging (AVB) and Time Sensitive Networking (TSN) These new protocols enable Ethernet to meet the demands of in-vehicle infotainment, control and safety systems.

The Excelfore TAS protocols reside in network talkers and bridges with support for TSN enhancements including IEEE 802.1Qbv and 802.1Qci. The TAS provides a circuit-switched/ Time-Division-Multiplexed (TDM) channel into the otherwise packet-based Ethernet network. This enables a specific time window to be guaranteed for the delivery of high priority traffic, for example for automotive control systems. The Excelfore TAS has demonstrated the ability to reduce the variance in measured propagation delays by more than 65% compared to Ethernet traffic without the TAS, ensuring deterministic sub-100 microsecond accuracy for time-sensitive traffic.

Shrikant Acharya, CTO at Excelfore, said, “Excelfore has consistently played a leading role in Ethernet AVB/TSN implementations. Last year we presented the first working demonstration of IEEE 802.1ASrev grand master clock redundancy. In 2016 our AVB protocol stack was the first to be certified by the Avnu Alliance for both the talker and listener functions.”

The Excelfore eAVB/TSN protocol stack, including the new TAS, is available for Linux, QNX, Integrity and Android operating systems, as well as a variety of smaller RTOSs (real-time operating systems). It is already running in cameras, video displays, head units, ECUs, and network gateways that bridge to CAN, LIN, and other popular automotive busses.

Excelfore will demonstrate its market-leading in-vehicle networking solutions including the Time Aware Shaper at the Automotive Ethernet Congress, February 13-14 in Munich, Germany. Shrikant Acharya, CTO at Excelfore, will be present a session entitled “Implementation of a TSN Time Aware Shaper”, at 12:00 on February 14. The presentation describes Excelfore’s implementation of a TAS on an automotive-grade Ethernet network switch IC, including presentation of data from extensive testing of differing use cases and network configurations.

About Excelfore

Excelfore, located in Silicon Valley, is an innovative provider of cloud platform and connectivity applications for intelligent transportation. It provides middleware solutions for smart mobility networks that enable OEMs and suppliers to build the next generation of smart, autonomous and learning vehicles, fleets and associated infrastructure. Excelfore products include the eAVB/TSN™ protocol stack for in-vehicle Ethernet time-sensitive networking, as well as the cloud-to-vehicle eSync™ system for OTA updates, diagnostics and telematics. www.excelfore.com

Excelfore is a registered trademark of Excelfore Corporation.

Reader Contact:  smartmobility@excelfore.com

Leave a Reply

featured blogs
Jun 14, 2019
The PCI-SIG Developers Conference is a free event for the 800+ member companies that develop and bring to market new products utilizing PCI Express® technology. Granted most people reading this blog won’t be at the conference, but you might be interested...
Jun 14, 2019
By Flint Yoder – Mentor, A Siemens Business Tight schedules? Worried about product reliability? Now you can find and eliminate latch-up sensitivity during schematic design, and avoid those post-layout nightmares. Latch-up'€¦the bane of circuit designers and circuit ve...
Jun 14, 2019
While Our next-generation cloud-ready JasperGold® Formal Verification Platform features machine learning technology and core formal technology enhancements across all JasperGold apps, and... [[ Click on the title to access the full blog on the Cadence Community site. ]]...
Jan 25, 2019
Let'€™s face it: We'€™re addicted to SRAM. It'€™s big, it'€™s power-hungry, but it'€™s fast. And no matter how much we complain about it, we still use it. Because we don'€™t have anything better in the mainstream yet. We'€™ve looked at attempts to improve conven...