Fundamental Modelling Concept for IVT Analysis and Control Development

The rapid development in the computer industry contributed greatly in the application of the simulation technology in the research and development of the automotive industry. The development and analysis of the IVT (Infinitely Variable Transmission) needs the application of computer aided engineering (CAE) tools such as simulation software and hardware in the loop (HIL) system due to its complex dynamics and interaction in the driveline. In this report, the fundamental concepts applied for the dynamic modelling and the simulation of the IVT components is discussed. The mechanic and hydraulic part models were developed and built as standard blocks to create a basic component library giving a good flexibility for a progressive development of complex simulations. A basic description of each model and a few simulation examples are shown. The real time simulation method that can be applied to IVT with those models is referred finally.