From concept to CAD: a multifunction automotive unit

This master’s thesis, developed within the automotive engineering program at Politecnico di Torino and in collaboration with Automobili Lamborghini S.p.A., focuses on the design and development of a multifunction unit prototype indeed for integration within the interior of vehicles. The main objective of the project was to create a 3D CAD model of this unit, considering not only its visual and aesthetic design but also its ergonomic properties, functional layout and integration of mechatronic components. The work began with a comprehensive user analysis, based on a survey distributed to a sample of Automobili Lamborghini employees. The goal of this initial phase was to gather feedback on current elements of human machine interface in the vehicles, identifying the most appreciated features as well as critical issues encountered in a real-world static use. Particular attention was given to the interaction between user and control systems and perceived intuitiveness of existing solutions. The data collected served as starting point for defining key design guidelines and functional requirements for the new prototype. The design process followed an iterative methodology, combining conceptual sketching, ergonomic analysis and CAD modelling. Each iteration aimed to improve upon the previous version by incorporating refinements based on ergonomic evaluations, mechanical feasibility and component integration. The resulting design integrates various controls and functionalities, such as gear selection, driving modes selection and settings about dynamic functions and performance strategies, into a single compact and coherent unit. The CAD modelling was carried out using CATIA, a powerful tool for parametric and surface modelling widely employed in the automotive industry. CATIA facilitated precise control over the design details, allowing for seamless integration of complex components, fine-tuned ergonomic adjustments and accurate validation of the spatial layout of the unit. Special attention was dedicated to the regulations and integration of mechatronic systems such as haptic feedback mechanism, sensors and electric interfaces, ensuring internal component’s layout allows for future implementation. The final outcome of this work is a detailed 3D CAD model that represents a feasible, user-friendly and highly functional prototype. The results demonstrate that it is possible to integrate multiple functions into a single component without compromising usability and comfort. The study also highlights the importance of user-driven design approach and iterative development in creating innovative solutions for the automotive interior. Future work may include physical prototyping, from the suppliers, and testing, as well as further integration with vehicle electronic architectures.