Model based Testing Methodology of Automotive Powertrain Components

摘要

The elementary design model "Contact & Channel Model" (C&CM) developed at the Institute of Product Development at the University of Karlsruhe connects the shape-oriented level of describing technical systems with the corresponding function-oriented level. In this paper the extension of the C&CM model with the mathematical-oriented level using Modelica simulation language to describe mechatronical systems is presented. Both models are integrated in a CAD model to create a so called "Behavioural Mock-Up" (BMU) which contains beside the geometrical and functional information all relevant mechanical, thermal, hydraulic and electric properties. The simple example of a spur gear unit shows the basic ideas of the newly developed concept, while the simulation of an automated gearbox illustrates the applicability of the BMU modules for complex systems. The method is finally applied for testing of powertrain components in the validation phase of the vehicle development process.