The Vehicle Dynamics Library for Dymola gives the user a toolbox for full vehicle modelling and simulation. This hierarchical Modelica library includes a comprehensive set of templates, that when combined with the extensive collection of predefined suspensions and components, allows different vehicle configurations to be created in a convenient and straight-forward way.
The Vehicle Dynamics Library can be used in conjunction with other Modelica libraries in Dymola to create truly multi-domain vehicle models. For example, this multi-domain modelling nature facilitates the user to create hybrid electric vehicles or perform active system development in a single modelling environment.
There are two main types of suspension models within the Vehicle Dynamics Library:
The Vehicle Dynamics Library contains a collection of common car and light truck suspension configurations which are ready-to-use. These include McPherson strut, trailing arm, double wishbone, multi-link, twist beam, and rigid axle suspensions.
The components and templates available allow the user to easily create their own customised suspension models, which can be kinematic or elasto-kinematic systems. For those who want to design their own suspension, the Vehicle Dynamics Library includes standard multibody primitives, such as joints and bodies, and dedicated components, such as bushings, leaf springs, links, struts and hubs.
The Vehicle Dynamics Library contains a wide variety of experiments, from component through to full vehicle analysis. These include a number of industry standard vehicle manoeuvres, such as Fishhook and J Turn, as well as kinematic and four/seven post rigs. For full vehicle analysis the road surface and atmospheric conditions can be controlled to replicate any test condition. The road surface can be defined as a smooth 3D road or road roughness can be included.
The Vehicle Dynamics Library provides designers of heavy vehicles with a purpose built environment for the modelling and simulation of heavy vehicles, which includes:
The library contains many templates and components that are specific to heavy vehicles, such as axles, twin tires, couplings, frames, loads and cabins. There are a number of heavy vehicle chassis configuration examples, such as 4 axle full trailer, 3 axle semi-trailer, three axle tractor, three axle tractor with twin rear axles, two or three axle truck and articulated 4 wheeler. The templates are easy to customise to model any vehicle configuration.