This content is not included in your SAE MOBILUS subscription, or you are not logged in.
The Effect of Reachability on Global Comfort Perception: The Case of Front-seat Car Passengers
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 03, 2018 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Much research has been carried out in recent years to estimate perceived comfort levels for passengers in motor vehicles. This interest is in part due to the introduction of specific provisions (e.g. Law 81/08 in Italy). Another factor is the increased interest and attention of customers. These studies have concentrated in large part on driver position. However, this work describes an application of postural analysis of with results obtained via data acquired during the interaction between the passenger and the dashboard.
Tests were carried out in the Virtual Reality Laboratory (VR Lab) at the University of Salerno using a physical mock-up of a passenger car seat involving a fully reconfigurable seating buck. The interior of a FIAT Grande Punto, MY 2013, was configured by setting the seating-buck parameters. Twenty participants were asked to sit in the car seat with their shoulders against the seatback. They were then asked to reach each of the dashboard buttons. To acquire the angles of the subject’s joints, pictures were taken and processed using KINOVEA® software. Each subject was subsequently given a questionnaire to analyze subjective comfort perception for their neck, back, shoulders, arms, upper-arms and wrists. A virtual model of the front seat of a Fiat Grande Punto was developed in CATIA software environment, and each action involved in reaching a position and using a command was simulated using DELMIA® software. The anthropometric data for each subject was used to perform the virtual analyses. Reachability and visibility analyses - important factors in comfort perception - were carried out. CaMAN® software was used for the virtual assessment of upper-limb postural comfort. Statistical analyses were performed using SPSS® software to investigate potential correlations between:
- anthropometric data and comfort perceptions resulting from the questionnaires;
- anthropometric data and comfort indexes obtained by CaMAN® software;
- comfort indexes obtained by CaMAN® and from the questionnaires.
The analyses showed a lack of strong correlations between anthropometric and comfort indexes calculated both by the questionnaires and by CaMAN®. Further analyses allowed us to understand the reasons for the weak correlation between the CaMAN and questionnaire results. Reachability was shown to strongly affect global comfort perception due to the perception of postural comfort. To understand the influence of reachability on global comfort perception, a new comfort perception function was developed, leading to some very interesting results.
CitationNaddeo, A., Cannavacciuolo, O., Cialeo, G., De Stefano, P. et al., "The Effect of Reachability on Global Comfort Perception: The Case of Front-seat Car Passengers," SAE Technical Paper 2018-01-1320, 2018, https://doi.org/10.4271/2018-01-1320.
Data Sets - Support Documents
|[Unnamed Dataset 3]|
- Italian Government, Ministry of Labour and social Policy, D.lgs. 9 aprile 2008, n. 81, Testo coordinato con il D.Lgs. 3 agosto 2009, n. 106.
- Gyi, D.E.,Porter, J.M., andRobertson, N.K.B., “Seat Pressure Measurement Technologies: Considerations for their Evaluation,” Applied Ergonomics 29(2):85-91, 1998, doi:10.1016/S0003-6870(97)00036-7.
- Guenaelle, P., “One methodology to evaluate Automotive Seat Comfort,” In: Proceedings of the Third International Conference on Vehicle Comfort and Ergonomics, Bologna, Italy, 29-31 March, 231-240, 1995.
- Porter, J.M. andGyi, D.E., “Exploring the Optimum Posture for Driver Comfort,” International Journal of Vehicle Design 19(3):255-266, 1998.
- Zhang, L.,Helander, M.G., andDrury, C.G., “Identifying Factors of Comfort and Discomfort in Sitting,” Human Factors 38(3):377-389, 1996, doi:10.1518/001872096778701962.
- Ebe, K. andGriffin, M.J., “Qualitative Models of Seat Discomfort Including Static and Dynamic Factors,” Ergonomics 43(6):771-790, 2000, doi:10.1080/001401300404742.
- Alessandro, N. andSandro, M., “Postural Comfort Inside a Car: Development of an Innovative Model to Evaluate the Discomfort Level,” SAE International Journal of Passenger Cars - Mechanical Systems 2(1):1065-1070, 2009, doi:10.4271/2009-01-1163.
- Naddeo, A.,Cappetti, N., andIppolito, O., “Dashboard Reachability and Usability Tests: A Cheap and Effective Method for Drivers' Comfort Rating,” SAE Technical Paper 2014-01-0455, 2014, 2014, doi:10.4271/2014-01-0455.
- Da Silva, L.,Bortolotti, S.L.V.,Campos, I.C.M., andMerino, E.A.D., “Comfort Model for Automobile Seat,” Work 41(SUPPL.1):295-302, 2012, doi:10.3233/WOR-2012-0172-295; Kolich, M., and Taboun, S., Ergonomics modelling and evaluation of automobile seat comfort, Ergonomics 47(8):841- 863, 2004.
- Dauris, D.D.I.,Deros, B.M.D., andNoor, M.J.M., “Understanding the effect of noise, vibration and seat discomfort towards a passenger´s vehicle driver through self-reported survey,” Journal Teknologic 49:39-53, 2008.
- Van Veen, S. andVink, P., “Posture Variation in a Car within the Restrictions of the Driving Task,” Work 54(4):887-894, 2016, doi:10.3233/WOR-162359.
- Van Veen, S.A.T.,Hiemstra-Van Mastrigt, S.,Kamp, I., andVink, P., “Improving Car Passengers' Comfort and Experience by Supporting the use of Handheld Devices,” Work 49(2):215-223, 2014, doi:10.3233/WOR-131716.
- Helander, M.G., “Forget about ergonomics in chair design? Focus on aesthetics and comfort!” Ergonomics 46(13-14):1306-1319, 2003, doi:10.1080/00140130310001610847.
- Moes, N.C.C.M., “Analysis of sitting discomfort, a review,” . In: Bust P.D.,McCabe P.T., editors. Contemporary Ergonomics 2005. (London, Taylor & Francis, 2005), 200-204.
- Vink, P. andHallbeck, S., “Editorial: Comfort and discomfort studies demonstrate the need for a new model,” Applied Ergonomics 43:271-276, 2012, doi:10.1016/j.apergo.2011.06.001.
- Naddeo, A.,Cappetti, N.,Vallone, M., andCalifano, R., “New trend line of research about comfort evaluation: proposal of a framework for weighing and evaluating contributes coming from cognitive, postural and physiologic comfort perceptions,” In Proceedings of the 5th International Conference on Applied Human Factors and Ergonomics AHFE, edited by T. Ahram, W. Karwowski and T. Marek, 2014.
- Vink, P., “The sweetness of discomfort: designing the journey,” (Inaugural Lecture, Delft University of Technology, June 4, 2014).
- Naddeo, A., “Comfort-driven Target Setting,” Proceedings of the 1st International Comfort Congress, Salerno (Italy), June 7th and 8th, 2017, Edited by Alessandro Naddeo, ISBN: 979-12-200-2249-1, 2017.
- Trapanese, S.,Naddeo, A., andCappetti, N., “A Preventive Evaluation of Perceived Postural Comfort in Car-Cockpit Design: Differences between the Postural Approach and the Accurate Muscular Simulation Under Different Load Conditions in the Case of Steering-Wheel Usage,” SAE Technical Paper 2016-01-1434, 2016, doi:10.4271/2016-01-1434.
- Naddeo, A.,Apicella, M., andGalluzzi, D., “Comfort-Driven Design of Car Interiors: A Method to Trace Iso-Comfort Surfaces for P Ositioning the Dashboard Commands,” SAE Technical Papers 2015-01-1394, 2015, doi:10.4271/2015-01-1394.
- Annarumma, M.,Pappalardo, M., andNaddeo, A., “Methodology Development of Human Task Simulation as PLM Solution Related to OCRA Ergonomic Analysis,” IFIP International Federation for Information Processing, Vol. 277, 2008, doi:10.1007/978-0-387-09697-1_2.
- Norman, D., andShallice, T., “Attention to Action: Willed and Automatic Control of Behaviour,” Proceedings of the Lake Wilderness Attention Conference, Interim Technical Report, August 1, 1980 through September 30, 1980, Retrieved 2016-05-18.
- Van der Grinten, M.P. andSmitt, P., “Development of a practical method for measuring body part discomfort,” . In: Kumar S., editor. Advances in Industrial Ergonomics and Safety IV. (London, Taylor & Francis, 1992), 311-318.
- Naddeo, A.,Vallone, M.,Cappetti, N.,Califano, R., andDi Napoli, F., “Ergonomic-Driven Redesign of Existing Work Cells: The “Oerlikon Friction System” Case,” . In: Lecture Notes in Mechanical Engineering. (2017), doi:10.1007/978-3-319-45781-9_120.
- Bubb, R., “Sitting Comfort,” Paper presented at IQPC aircraft interior innovation, 11 November 2008, Hamburg.