Simulate your proving ground tests
Using comprehensive vehicle models and driver models you can recreate your physical test procedures in simulation allowing them to become repeatable and enabling even small changes in performance to be measured.
Virtual test track
Using LiDAR survey data of a proving ground you can recreate the road surface in rFpro Terrain Server or using open standards like OpenCRG and OpenDRIVE. The virtual vehicle can then be driven over the digital twin to understand all the forces and torques acting on the vehicle.
Explore system interactions
Using multi-domain vehicle models we can investigate the interaction between the various vehicle systems to understand how the mechanical, cooling, electrical and control systems all respond during your test procedures. This can all be done before physical prototypes are available for testing.
Driver-in-the-Loop
Use simulation with a real test driver on a workstation or in a full motion driving simulator to close the gap between the simulation and real world testing. Simulation with a driver model makes a test 100% repeatable but a human driver is sensitive to many things that we don’t often have metrics for.
FTire integration
To virtualise proving ground tests so that they can replace physical testing usually requires a high fidelity model of the road surface which in turn requires a tire model suited to high frequency and short wavelength excitation. FTire, from Cosin Scientific, provides such a capability and is supported through an interface in VeSyMA – Suspensions allowing high frequency road inputs to be fed through into the MultiBody suspension model
Post-processing
To effectively virtualise proving ground tests you also need to be able to quickly post process results from multiple simulations. The Multirun tool can be used to run multiple simulations in parallel and compare results to a reference set to quickly identify changes. The Python interface can also be used to run and analyse simulation results.
Related Articles
- Steam Powered Aircraft Catapult
A month ago I saw a news article about the re-discovered remains of an experimental aircraft catapult that was unearthed just outside oxford. As I read I thought it would be an interesting combination of realms of simulation that we could easily model and set myself a challenge to create the system within Dymola. Lots of catapult methods were developed […]
Read More » - Back To The Future Flying DeLorean
We are always looking for interesting combinations of libraries and good demonstrations of novel systems, we have many useful examples within our libraries demonstrating that. Such as the use of the hydrogen library with VeSyMA, as described in Theo’s blog post about a hydrogen bus model; or lots of different interactions to EPTL or HVAC, as described in Hannah’s blog […]
Read More » - Simulating KnC Rigs
The Suspensions library is full of experiments that test the full vehicle dynamics. However, it can be very difficult to validate models using full vehicle experiments, such as the common Kinematic and Compliance (KnC) test. This kind of test, as the name suggests, details the suspension kinematics (force and movement as the result of regular suspension operation) and the compliance […]
Read More »