Can the parameters be changed during the simulation?

Question

How the dynamic simulation reacts to changes in the parameters during driving?

The idea is to be able to change the attributes of the tires and the ground during driving, but ideas go even deeper by adjusting even other parameters. Can this be done by simply changing the parameters within the simulation, like before starting it or are the parameters cached in any way? If so, what needs to be done to dirty the caches and reinitialize the modified parameters?

Answer 1

VPP is designed so almost any vehicle parameter can be changed in runtime with immediate effect. There should be no problems as long as the new values make sense and are numerically supported. For example, large inertia differences within the powertrain parts or too strong dampers will probably cause stability issues. But changing parameters don't have any drawback per-se and produces an immediate effect.

The only parameters that can't be modified with immediate effect are the number of wheels and the connections between the powertrain parts (Blocks). These may be still changed in runtime, but require the vehicle to be disabled. Once re-enabled the new settings will have the expected effect.