Dymola’s multi-engineering modelling and simulation capabilities enable the whole vehicle system to be analysed in one tool. The complexity of the modern vehicle is increasing as the customer demands higher levels of refinement and quality and the OEM introduces more control systems to meet these demands. This is primarily the result that companies are realising that systems are increasingly integrated and can no-longer be developed in isolation.
For example, to properly integrate an active differential in to a vehicle requires the differential control system to interact with the engine and transmission systems to manage the torque input to the differential and it must also interact with the braking and chassis systems to manage the vehicle behaviour. This can only be realised efficiently using simulation that enables all of these systems to be modelled and simulated as a single functional model. Utilising Dymola’s multi-domain modelling and simulation capabilities some of the benefits that can be realised are:
- Lower costs of product development and improvement
- Reduced time to market
- Libraries which offer short cuts to pre-built physical modelling and simulation
- Multi-domain software - no more developing in isolation
- Physical component simulation
- Whole vehicle improvement in performance
- Discover optimum set-up of vehicles
Libraries accelerate design and development and vehicle optimisation
A comprehensive range of model libraries are available for Dymola covering many engineering domains. In addition to the general libraries such as 1D and MultiBody mechanics, hydraulics, electrical and control there are a number of automotive specific libraries. These include:
- Air Conditioning
- Powertrain
- Smart Electric Drives
- Vehicle Dynamics (for Cars, Trucks and Motorsports)
The automotive libraries utilise common interface definitions that allow them to be easily coupled together to create a single, complete vehicle model. As the complexity of the modern vehicle and the customer demands for refinement and reliability increase it becomes more important to analyse and understand the interactions between the different vehicle systems. Traditionally it has been sufficient to model the physical systems in isolation from one another and in isolation from the control systems. The interactions were then investigated through extensive physical testing. Dymola enables the physical and control systems to be modelled and simulated in one tool. This enables a large amount of physical testing to be replaced by simulation enabling the interactions between the different systems to be understood and refined before a prototype vehicle is built.
