Riassunto analitico
L'auto fornisce una grande capacità di spostamento capillare. Negli ultimi anni un crescente desiderio di avere funzionalità di assistenza alla guida o guida autonoma è arrivato da parte degli utilizzatori, soprattutto in condizioni critiche o di pericolo. Il presente lavoro consiste nel trovare, tramite un approccio sistematico, una soluzione che permetta l'estensione delle funzionalità del radar in condizioni di neve e ghiaccio. Nel primo capitolo lo stato della tecnica è presentato. Il secondo capitolo riporta l'approccio sistematico ed i design che vengono, successivamente, analizzati nel capitolo terzo e testati nel quarto capitolo. Infine, nel quinto capitolo una revisione del design è presentata mentre nel sesto capitolo delle conclusioni sono riportate.
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Abstract
The dissertation presents the systematic approach and its solution to the radome ice and snow removal problem in the automotive application. The request from stakeholders for an advanced driver-assisted system (ADAS) increase in functionality has been on the rise in the past years. Furthermore, the trend in the automotive industry that aims to level four or five autonomous drive requires the sensor package to function even in harsh winter conditions. Such conditions have been extensively studied in the aerospace industry, since the presence of ice is common at high altitudes. Therefore, a multitude of solutions are present for surface de-icing in the aerospace field.
The present work focus on the radome ice and snow accretion mitigation. The radome is a crucial component of the radar system since it protects the sensor from the environment and the debris transported via the airflow investing its surface. The first chapter, namely Task Clarification, presents an extensive research on the de-icing technology applied to the radome, thus that it is radar transparent, and the requirement list that an ideal solution should fulfil. The second chapter presents the conceptual design phase and all its steps, from the problem breakdown to the promising solutions via a classification table and selection charts. Next, the embodiment design of the promising solution has been carried out during chapter three, further eliminating the solution variants that would not fit the automotive environment and leading to the prototype design and test, where the solution variants has been tested and a final design has been drawn. Lastly, a design iteration loop has been made in the design review chapter before drawing some conclusions in chapter six.
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