Scenario-Based Testing of ADAS/AD With DYNA4 R8
Munich, GERMANY, 2023-11-06 Vector Informatik presents Release 8 of DYNA4, the simulation software for virtual test driving. The focus is on the new scenario engine, which now natively supports the ASAM standard OpenSCENARIO 1.2 as input format for the description of complex test drive scenarios. Thus, DYNA4 offers scenario-based testing of vehicle control functions with seamless integration of the ASAM standards OpenSCENARIO, OpenDRIVE and OSI. Extensively modeled scenario catalogs are thus consistently reused throughout the entire ECU development process and across various simulation execution environments.

OpenSCENARIO - the standard for scenario-based testing

The ASAM standard OpenSCENARIO defines a description format for modelling the dynamic part of driving scenarios for virtual test drives. For example, the maneuvers of road users such as surrounding vehicles, pedestrians, and cyclists. The static part of a scenario, such as the underlying road network, is modeled based on the complementary OpenDRIVE standard. The new scenario engine of DYNA4 now offers the simulation of driving scenarios modeled in the OpenSCENARIO format. The standard describes a wide range of Actions that can influence the behavior of the Entities involved in the scenario, as well as Conditions that serve as trigger conditions for the initiation of Actions. This allows traffic scenarios to be modeled with any degree of complexity. During the scenario execution DYNA4 allows flexible access to simulated model signals. For reading values to trigger Conditions. Or for writing values to perform signal manipulations, for example for a targeted fault injection.

The native support of ASAM standards in DYNA4 offers a maximum of consistent use of modeled scenarios throughout the entire ECU development process. This not only increases the efficiency of simulation-based function testing, but also ensures investment security when building comprehensive scenario catalogs.

The physical models of DYNA4 or its scenario engine module can be integrated into other tool chains with ASAM standards. Interface problems when transmitting generated ground truth data or simulated sensor data are avoided by supporting the ASAM OSI format.

Virtual cameras for real ECUs

Another new feature in DYNA4 R8 is the direct injection of simulated camera images into an ADAS ECU. The virtual cameras available for this purpose in DYNA4 offer different distortion models for regular or fisheye lenses with a range of applicable image effects and configurable Bayer filter pattern, according to the CMOS used. For direct injection to an ECU, images generated via real-time simulation are sent via Ethernet to the Vector VX1161 Multi Base Module. The module outputs them as serialized image streams via FPD-Link III or GMSL using the VX1161.51 streaming interface cards. The ADAS function code on the ECU processes the injected virtual camera images to perform its detection, fusion, tracking, and planning tasks. When the ECU outputs are received with the Vector VN network interfaces or the VT System cards, they can be fed back into the virtual DYNA4 vehicle model. This creates a hardware-in-the-loop test system for ADAS ECUs.

All highlights of DYNA4 R8 release: www.vector.com/dyna4-r8
More about OpenSCENARIO: www.vector.com/openscenario
About Vector

Vector is the leading manufacturer of software tools and embedded components for the development of electronic systems and their networking with many different systems from CAN to Automotive Ethernet.
Vector has been a partner of automotive manufacturers and suppliers and related industries since 1988. Vector tools and services provide engineers and software developers with the decisive advantage to make a challenging and highly complex subject area as simple and manageable as possible. Vector employees work on electronic innovations for the automotive industry every day. Worldwide customers in the automotive, commercial vehicles, aerospace, transportation, and control technology industries rely on the solutions and products of the independent Vector Group for the development of technologies for future mobility.
Vector worldwide currently employs more than 3,500 people with sales of EUR 1.06 billion in 2022. Vector is headquartered in Germany (Stuttgart) and has subsidiaries in Brazil, China, France, Great Britain, India, Italy, Japan, Austria, Romania, Sweden, South Korea, Spain and the USA.

You can find this and other press releases on our website at: www.vector.com/pressreleases
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Date: 06.11.2023 10:00
Number: DYNA4_R8 EN
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Figure 1 and 2: Variation of parameters to create different instances of a logical scenario. Image rights: Vector Informatik GmbH Bildrechte: Vector Informatik GmbH

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Figure 3: Direct injection of simulated camera images from DYNA4 into an ADAS control unit. Image rights: Vector Informatik GmbH
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Vector Informatik GmbH
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70499 Stuttgart

Heike Schmidt
Tel. +49-711/80670-5350
Fax +49-711/80670-585350
heike.schmidt@vector.com
vector.com
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