Ethernet TSN for OTA & Vehicle Diagnostics | Excelfore

Ethernet TSN and Automotive Ethernet: The Backbone of OTA, Data Aggregation, and Vehicle Diagnostics

Today’s vehicles are data-driven machines. They run on software as much as on fuel. To stay secure, updated, and reliable, they need a communication backbone that can handle massive amounts of data without delay. That backbone is automotive Ethernet, strengthened by TSN for time-sensitive communication. Together with standards like eSync and SOVD, and with Excelfore eDatX, this foundation supports automotive OTA, efficient vehicle diagnostics, and large-scale automotive data aggregation.

This isn’t just about faster networks—it’s about building vehicles that improve continuously.

Why automotive Ethernet matters

Older in-vehicle networks, such as CAN and LIN, cannot meet modern demands. High-resolution cameras, ADAS functions, and infotainment all compete for bandwidth. The resources of the cloud can not improve devices that can not be addressed and reached remotely. 

Automotive Ethernet solves this with speed, flexibility, and scalability.

• High bandwidth: Supports gigabit speeds needed for data-heavy systems.
• Standardized addressing: Uses Internet Protocol (IP) methods to address each endpoint, allowing remote resources to access and be accessed by each electronic device on the network  
• Standardized protocols to extend IP addressing: Works seamlessly with SOME/IP and DoIP to support service-oriented and diagnostic functions. These protocols can make use of  the IP addressing of devices on the Ethernet network to provide remote access to subordinate devices on non-IP buses. OEMs can keep their legacy ECUs on CAN and LIN, and enable remote access through an Ethernet backbone with SOME/IP and DoIP.
• Deterministic performance: With Ethernet TSN, safety-critical data always arrives on time.

This makes Ethernet the natural backbone for updates, diagnostics, and data management in connected vehicles.

Excelfore can provide OEMs the protocol stacks needed to create an Ethernet backbone.  And once it is in place, Excelfore offers the solutions OEMs need to create best-in-class cloud connectivity.

eSync technology and automotive OTA

Connectivity alone is not enough. Updates need orchestration. That’s where eSync technology comes in.

It provides a bi-directional pipeline between the cloud and the devices in the vehicle:

• Automotive OTA updates flow down securely to every ECU.
• Diagnostics and telemetry flow back up for monitoring and analysis.

For OEMs, this means every ECU in every vehicle in the fleet can receive secure, efficient OTA software improvements —keeping vehicles safer, more capable, and future-ready.

Data aggregation with eDatX

Vehicles generate enormous amounts of data every day. Not all of it is useful. The Excelfore eDatX platform enables intelligent automotive data aggregation, ensuring only selected data is sent to the cloud.

Key advantages:

• Efficient data reduction: Reduces data by 99.9% or more
• Efficient data selection:  Collects, organizes and sends useful data.
• Fleet-wide insight: Helps identify trends across thousands of vehicles.
• Scalable design: Works across different domains and vehicle models, for massive numbers of vehicles

This enables OEMs to optimize performance and reliability, reduce operational costs, and design better vehicles.

More innovative vehicle diagnostics with SOVD

Diagnostics are also changing. Traditional methods relied on repair-shop tools. New approaches, such as SOVD (Service-Oriented Vehicle Diagnostics), utilize IP-based remote access instead.

With SOVD, integrated with eSync and supported by automotive Ethernet, service teams can:

• Monitor vehicle health in real time.
• Run advanced diagnostics remotely.
• Integrate seamlessly with cloud platforms, such as AWS IoT Core.

This results in faster problem resolution, reduced downtime, and fewer recalls.

Why this matters for OEMs and fleets

The combination of Ethernet TSN, automotive Ethernet, and Excelfore’s platforms delivers measurable value:

• Faster and more reliable automotive OTA updates.
• More innovative vehicle diagnostics with remote access and predictive insights.
• Actionable intelligence from automotive data aggregation.
• Lifecycle competitiveness as vehicles continue to improve after launch.

With eSync technology, eDatX, and SOVD, OEMs gain the tools to reduce costs, unlock new revenue streams, and deliver safer, smarter vehicles.

The bottom line

The future of mobility depends on networks that are fast, reliable, and adaptable. Automotive Ethernet provides the backbone. Ethernet TSN guarantees time-sensitive performance. eSync technology and eDatX bring secure updates and efficient data management. SOVD makes diagnostics smarter. Jointly, these solutions redefine what vehicles can do—not just at launch, but throughout their entire lifecycle.

We support OEMs and mobility providers in making this future a reality—delivering vehicles that stay interconnected, updated, and smart.