In this article a multidisciplinary development process of a new mechatronic door concept for improved and situation-dependent ingress/egress was presented. In the first step the reasons for occurring discomfort during ingress/egress were identified. Therefore the influences of different geometries of the car like door sill, seat height, or the A-pillar were studied using as well questionnaires as multi-body simulations. First analysis of the arm/shoulder movement show high correlation of both studies. Further on the analysis is devolved for a whole body movement to derive a model to generally objectify discomfort of movement. The findings of the experiments so far, which give a rough clue of the optimal movement, were used to design new door kinematics. Two most effective concepts allowing multiple, situation-dependent door movements were presented. One concept uses an additional guide between door and car body to realise a displacement of the rotation axis. With its two degrees of freedom, the door can be opened situation-dependently. Major benefit of the second door concept, a sliding door, is the deblocking of the whole door cutout. With a pivoting and a translating function the door opens in two steps. Both designed door concepts fiercely increase the room in front of the ingress area. Further on the two concepts get actuated and controlled to enable safe and reliable operation. To generate new kinematics and speed up coming developments a kinematics development process was introduced. Prototypes of the design steps for motion input and kinematics synthesis are presented. Additionally various output methods like the software output, the link to the rapid prototyping process of 3D-printing and virtual prototyping were presented. For the latter an experimental rig for a high fidelity haptic and visual simulation was implemented. Modelled as admittance, the rig can simulate forces and torques with respect to the interferences applied by the user. To ensure a safe operation of the door two vision sensors with a large field of view were integrated. By means of these, a 3D-modcl of the workspace for ambiance information is generated. Obstacles, which could interfere with the door movement, can be extracted and incorporated by the controller of the door's actuators. Out of the information provided by the camera system anthropometric data can be extracted and data for preadjustments can be collected.


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    Titel :

    Multidisciplinary development of new door and seat concepts as part of an ergonomic ingress/egress support system


    Weitere Titelangaben:

    Interdisziplinäre Entwicklung neuer Tür- und Sitzkonzepte für Fahrzeuge als Teil eines ergonomischen Einstieg-/Ausstiegunterstützungssystems


    Beteiligte:


    Erscheinungsdatum :

    2008


    Format / Umfang :

    10 Seiten, 6 Bilder, 18 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    F2008-04-028 MULTIDISCIPLINARY DEVELOPMENT OF NEW DOOR AND SEAT CONCEPTS AS PART OF AN ERGONOMIC INGRESS/EGRESS SUPPORT SYSTEM

    Fischer, M. / Braun, S.C. / Hellenbrand, D. et al. | British Library Conference Proceedings | 2008


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