DYNA4
DYNA4 is an open simulation environment for the virtual test driving of vehicles. The physical models include vehicle dynamics, powertrain, combustion engines, electric motors, sensors and traffic. Virtual test drives with DYNA4 facilitate safe and efficient function development and testing. Closed-loop simulations on the PC run faster than in real-time, which can be used in early development stages (MIL, SIL), or can be executed on Hardware-in-the-Loop systems (HIL) when ECUs are available. The 3D environment of DYNA4 simulation with road infrastructure and traffic provides virtual test fields for assisted and automated driving to ensure environmental sensibility.
Advantage of DYNA4
- Advance: Test and develop ECU functions in early stages
- Secure: Safe testing in vital driving maneuvers, including near crash situations or vulnerable road users
- Coverage: Test range increased through scenario-based testing in DevOps environments
- Weather Simulation: Weather conditions such as rain, wind, snow... can be reproduced to test
- Upgrade: Optimization of configurations, variants and concept studies
- Traceable: test runs through management and versioning of simulation input and output
Functions of DYNA4
Virtual Vehicle: Models for Closed-Loop System Tests
- Seamless integration of vehicle control functions and strategies
- Engine dynamics based on mean-value or detailed thermodynamic cylinder models
- One or more vehicles under test, e.g. for cooperative driving
- Use-case dependent choice of model fidelity from basic models to high-fidelity models
- Pre-configured, modular drivetrain models with mechanical and electrical components
- Vehicle dynamics for cars, trailers, trucks and commercial vehicles
- Driver models for different applications
Traffic, Environment, Sensors and 3D-Visualization
- Impressive 3D-visualization of your DYNA4 simulations
- Comprehensive and user-extensible object library with signs, vehicles, cyclists, pedestrians, animals, etc
- Driving on OpenDRIVE road networks without conversion
- Deterministic traffic to create specific scenarios with prescribed behavior, e.g. NCAP
- Stochastic yet reproducible traffic for explorative testing, e.g. driving on highway in dense traffic
- Sensor simulation on decision level with object lists or on perception level with signals from camera, lidar, radar or ultrasonic sensors
- Comprehensive ground truth for static and dynamic environment
Integration, Workflows and Connectivity
- 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
- 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)
- Open-loop and closed-loop simulation
- Integrated test automation and parameter variation
- Standard interfaces e.g. for CANoe, FMU, ROS and ADTF
- Integrated versioning and teamwork functionality
- Model, data and results management
- Continuous re-use of your tests from MIL, SIL to HIL
- Support of all common HIL platform
Application of DYNA4
ADAS / AD
Development and Test of ADAS and AD
- Environment perception: Lane detection, traffic sign recognition, object detection, simultaneous localization and mapping (SLAM) etc.
- Comfort functions: Adaptive cruise control (ACC), parking pilot etc.
- Safety systems: Pre-crash, front collision warning (FCW), automated emergency braking (AEB), lane keeping assistant, blind spot monitoring etc.
- Car2x: Connected and cooperative driving
- Driving automation: Traffic jam chauffeur, highway pilot, driverless vehicles
Vehicle Dynamics
Virtual Test Drives with Precise Vehicle Dynamics
- Chassis control systems: Electronic stability control (ABS, ASR, ESC), active roll compensation, trailer stabilization, active suspension control etc.
- Steering control: Power steering, rear-wheel steering, superposition steering etc.
- Commercial vehicles with up to two trailers
- Virtual axle and tire test stands for generation and validation of model parameters
- Complete vehicle simulation for testing the interdependencies of networked ECUs
E-Mobility
System Simulation and Energy Management
- CO2 reduction: Energy consumption prognosis for vehicles with conventional, hybrid or full electric powertrains and auxiliary units
- Predictive energy management functions
- Hybrid control units: Development, optimization and testing of hybrid control functions
Combustion Engines
Simulation of combustion engines from MiL to HiL
- Engine management functions and diagnosis
- Proof-of-concept studies during early development
- Test of engine control units and components
- Analysis of design concepts for gasoline, diesel, and other specific engines
- Controllers for supercharging, variable valve actuation, HCCI, and EGR
- Test and development of controllers for exhaust aftertreatment
- HiL for engine controllers with cylinder pressure sensing
Feasibility studies and evaluation of engine design