DYNA4

Virtual Test Driving of Cars and Commercial Vehicles for Closed-Loop Function Testing of ADAS and Chassis Control Systems.

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DYNA4 is an open simulation environment for virtual test driving of cars and commercial vehicles. It integrates high-fidelity physical models for vehicle dynamics, powertrain, combustion engines, electric motors, sensors and traffic. Virtual test drives with DYNA4 facilitate safe and efficient function development and testing.

DYNA4’s 3D environment simulation with road infrastructure and traffic provides virtual test fields for assisted and automated driving wherever environment perception plays a key role.

Open- and closed-loop simulation setups range from early Model-in-the-Loop (MIL), Software-in-the-Loop (SIL) in scaled DevOps pipelines to Hardware-in-the-Loop (HIL) with real ECUs. The same test scenarios transfer seamlessly from stage to stage.

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Advantages

Frontloading: testing and development of ECU functions in early stages
Safe testing in critical driving maneuvers, including near crash situations or vulnerable road users
Increase of test coverage through scenario-based testing in DevOps environments

Weather independence: reproducible environment conditions with rain, snow, fog, wind etc.
Analysis and optimization of configurations, variants, concept studies 
Traceability of test runs through management and versioning of simulation input and output

Applications

Virtual Vehicles in DYNA4

Realistic driving dynamics: Start with basic vehicle dynamics switch to full axle and tire dynamics, if necessary
Passenger cars and commercial vehicles with up to two trailers
Vehicle Models for Closed-Loop System Tests
Ready-to use example vehicles
Several vehicles under test at the same time in one environment (e.g. for platooning)
Pre-configured, modular drivetrain models with mechanical and electrical components
Engine dynamics based on mean-value or detailed thermodynamic cylinder models
Driver models for different applications
Seamless integration of vehicle control functions and strategies.

Simulation environment Vector DYNA4. Screenshot of the vehicle dynamics editor with detailed axle parameters. — Vehicle Dynamics Model Configuration in DYNA4

Highlights of the Current Release DYNA4 10

Scenarios, Environment & Sensors

Phenomenological radar model in DYNA4

Description of deterministic driving scenarios inASAM OpenSCENARIO XMLformat, e.g.NCAP
Driving on OpenDRIVE road networks without conversion
Impressive 3D-visualization of your DYNA4 simulations
Comprehensive and user-extensible object library with signs, vehicles, cyclists, pedestrians, animals, etc.
Stochastic yet reproducible traffic for explorative testing
Sensor simulationon decision level with object lists or on perception level with raw signals from camera, lidar, radar or ultrasonic sensors
Comprehensive ground truth for static and dynamic environment

Integration, Workflows and Connectivity

DYNA4 virtual test driving can be used in MIL, SIL, HIL and VIL setups. The System under Test can be flexibly connected form various souces, eg. Simulink, ROS, C++, FMU, as ECU.

Powerful model and scenario authoring in DYNA4 Studio
Open and modular model architecture based on MATLAB/Simulink
- Comprehensive DYNA4 model component libraries
- Seamless integration of your Simulink models, FMUs or C-code
Open-loop and closed-loop simulation
Flexible integration into your work processes and tools
- DYNA4 as master for your simulation tool chain
- DYNA4 as slave with headless operation in your common work environment
- Easy integration into CI pipelines (Windows or Linux)
Standard interfaces e.g. for CANoe, FMU, ROS and ADTF
Integrated versioning and teamwork functionality
Model, data and results management
Integrated test automation and parameter variation
Continuous re-use of your tests from MIL, SIL, HIL and VIL
Driver-in-the-Loop setups (DIL) at all configuration levels
Support of all common HIL platforms