The Role of Synthesis, Analysis, and Simulation in Engineering a Complex System: The Automotive Vehicle

In this paper we define a “top down” systems engineering process that is driven by customer requirements, and which results in vehicle products that meet those requirements. This process is intended to effectively deal with the complexity of modern automotive systems. To implement the systems engineering paradigm, an approach that integrates functional product requirements with physical realizations, i.e., math-based synthesis is introduced. Synthesis and analysis are shown to be key to being able to define, design, and validate vehicles, vehicle subsystems and components, and processes to meet their physical and functional requirements simultaneously. This involves the utilization of mathematical models at a variety of levels of detail, and of multi-disciplinary computer based methods, e.g., computer-aided engineering (CAE). Examples of the application and benefits of the use of synthesis and analysis are shown throughout the automotive vehicle development process. The approach presented leads to shorter product development cycles at reduced cost, less prototype hardware builds, and superior quality and value for the customer.