Mega trends such as automated driving, connected car, smart devices, and e-mobility are on the rise, requiring scalable in-vehicle software architecture, dependable systems with more computing power and solutions for fail operational systems. The more systems included in a vehicle network, the more complex the communication between the electronic control units (ECUs) becomes. There is a need for high bandwidth to support the increasing data transfer needs of future networks in the cars, such as automotive ethernet can offer. Furthermore, hardware and software separation demands virtual machines as independent execution environments for different Tier 1 suppliers on a single ECU for safety and security reasons.
EB has comprehensive know-how and experience with many automotive communication technologies.
- EB’s automotive IP/Ethernet basic software solutions are embedded in the AUTOSAR-based EB tresos AutoCore and EB corbos AdaptiveCore product family
- EB’s close cooperation with car makers on specifications and implementations as they introduce innovative new methods such as service-based architectures, time-sensitive networks, or automotive plug and play
- Providing a high quality level for implementation, ensured by extensive Ethernet conformance tests
- Series-production-approved network communication solutions for CAN, LIN, FlexRay
- Turnkey automotive Ethernet solutions from middleware to the stack as well as switches, switch firmware, or virtualization support
EB offers in-car network software solutions for all use cases from CAN and LIN to FlexRay and Ethernet. All individual software solutions are integrated into the communication stack of EB tresos AutoCore and EB corbos AdaptiveCore, which encompasses the AUTOSAR communication services for vehicle network communication. These services provide a uniform interface to the vehicle network-independent of the communication protocol used – and are required in every AUTOSAR communication stack. Our portfolio of Ethernet products offers a full spectrum, from Classic ECUs to HPCs in combination with Ethernet hardware switch or without. We offer a variety of products for the domain, centralized, and future zoned architecture. EB’s products support the whole range of architectures from domain-oriented to centralized, up to tomorrow’s zoned architectures. Thus, EB’s product portfolio is the solution for existing and future vehicle infrastructure design approaches.
Communication paradigms: signal- and service-based
Current automotive networks follow a signal-based communication paradigm. This method of communication typically involves the transmission of short messages with individual, densely packed values (signals). They are broadcasted to all network nodes and forwarded to interested applications via efficient filters.
Ethernet’s high bandwidth enables the use of service-based communication. This provides a flexible and scalable method to handle the increasing complexity of signals exchanged within the car. In contrast to the well-proven signal-based method, the service-based version uses a subscription-based way of data exchange. EB offers a boilerplate for the underlying network infrastructure to enable customers to use the network instead of engineering or debugging it.
In order to meet current and future car maker requirements, EB ensures maximum flexibility by delivering solutions for both Ethernet communication methods: signal- and service-based.
Time-sensitive control data exchange
Extending Ethernet with time-sensitive networking will enable new automotive applications that not only require a higher bandwidth, but also guarantee worst-case latencies and global time-base synchronization between the ECUs. EB supports time-sensitive technologies such as AVB and the application protocols on top of it such as AVTP and others.
Automotive Ethernet-based devices and systems introduce new challenges for testing and verification, requiring test methodologies that depend on both automotive domain expertise and best practices.
Enabling automotive Ethernet network
Related tech papers
This paper presents a multi-level security architecture to protect an automotive Ethernet network (eg. in automated driving) against malicious attacks.
This paper provides solutions for connecting virtual machines to Ethernet.