If you are modelling complex systems, such as full vehicle models, then you will have seen that they can include large transient periods at the start of simulation, before settling to a steady state. Colloquially this is known as the “settling phase”. Excessive settling in a model can cause...
Last year as part of the 2022.1 release of the VehicleDemos library, Claytex added a Hydrogen Fuel Cell Electric (FCEV) bus model. Created out of the existing EV bus example, it showcased integrating models from the Hydrogen Library with VeSyMA vehicle models. Ambitiously, a high level of detail was...
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...
A few years ago, I wrote a blog post about writing tidy code, pointing out that it’s a good idea to be disciplined when laying out a code layer. After all, you (or someone else) will be coming back to look at this code in the future, so laying...
Evolving out of the ferociously popular German DTM series in the mid 1990s, the International Touring Car Championship (ITC) featured exotic and sophisticated racing cars; certainly, the most advanced production-based racing cars ever seen. Ballooning budgets from 3 large European manufacturers: Mercedes-Benz, Opel and Alfa Romeo, allied to a...
In 2024, the IndyCar series will become the latest championship to employ hybrid technology. To prepare for this here at Claytex, we have added support for hybrid systems to the IndyCar vehicle models as part of our VeSyMA – Motorsport library. It promises to be an exciting addition to...
When I was growing up, the role motorsport played in the operations of automotive manufacturers was well understood. Win on Sunday, sell on Monday. Prove your products were superior to the competition by simply outperforming them on the racetrack or rally stage. Winning was the be all and end...
The Claytex team was posed a question recently; “How easy would it be to create an articulated truck model with what we’ve got already?” My immediate thought was that it should be easy. The dynamics are no different from a conventional car and trailer and apart from a couple...
Do you really need detailed knowledge of every component in your system and how to model each component in order to successfully simulate the system? In this blog post I’m going to consider this question, and how the existing Modelica libraries that Dymola supports affect the answer. One thing...
Road models are a fundamental, yet relatively misunderstood, aspect of vehicle modelling. In essence, all that comprises a road model is a mechanism to deliver the tyre a point in space, which represents where the ground level is. The point is then utilised within the tyre to produce a...
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