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Development and Evaluation of a Device for the Haptic Rendering of Rotatory Car Doors

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4 Author(s)
Michael Strolz ; Institute of Automatic Control Engineering, Technische Universität München , Munich, Germany ; Raphaela Groten ; Angelika Peer ; Martin Buss

Virtual prototyping of car doors enhanced with haptic feedback is a promising way to decrease the number of physical prototypes. We clarify, correct, summarize, and extend our previous work on the haptic simulation of car doors. A fundamental issue is the derivation of the performance specification of a task-optimized haptic interface, which is based on the knowledge of the typical user interaction with a car door and a comprehensive model of the dynamics of a rotatory car door. We reason that a direct drive with a high torque output (≥ 100 N·m) and a high control bandwidth has to be used. Consequently, we created a backlash-free very stiff device providing a safe and high-fidelity haptic rendering. Finally, we conducted an extensive user study with 17 participants. An important result is that the haptic simulation can be reliably used to evaluate different door concepts if the difference between them is larger than 5 N·m. Furthermore, the participants did not like a high effort for closing the door, while both a low and a medium effort are appreciated. This is in accordance with the heuristic findings of the automotive industry, which shows the effectiveness of our virtual prototyping approach.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:58 ,  Issue: 8 )