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  • Kim, Seung-Lye  (3)
  • Lee, Sang-Don  (3)
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  • Kim, Seung-Lye  (3)
  • Lee, Sang-Don  (3)
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  • 1
    Online Resource
    Online Resource
    SAGE Publications ; 2020
    In:  Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering Vol. 234, No. 1 ( 2020-01), p. 212-227
    In: Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, SAGE Publications, Vol. 234, No. 1 ( 2020-01), p. 212-227
    Abstract: Vehicle interior roominess is one of the key factors for buyers’ satisfaction. Principal component analysis, principal component regression, and correspondence analysis are applied to understand the modes of variation for interior roominess among 15 dimensions from 76 passenger vehicles, to predict buyers’ satisfaction and to identify dimensions with unique proportions. Three variation modes are found: (1) the interior plan-view variation mode (plan-view = vehicle length × width) shows the largest difference between small and large vehicles, (2) the vehicle height variation mode exposes the difference between the short and tall vehicles, and (3) the greenhouse-shape variation model reveals the difference between sleek and boxy vehicles. Domestic brands are found to receive lower satisfaction even though they are similar in the 15 dimensions. The knee clearance for the second-row shows the largest difference in proportion followed by the diagonal head clearances for the first and the second-rows.
    Type of Medium: Online Resource
    ISSN: 0954-4070 , 2041-2991
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
    detail.hit.zdb_id: 2032754-7
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Online Resource
    Online Resource
    SAGE Publications ; 2010
    In:  Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering Vol. 224, No. 11 ( 2010-11-01), p. 1433-1450
    In: Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, SAGE Publications, Vol. 224, No. 11 ( 2010-11-01), p. 1433-1450
    Abstract: It is a well-known fact that braking is one of the most important factors in customer satisfaction and a key factor in the voice of the customer (VOC). The VOC has to be translated into engineering specifications in due course and various methods have been developed. Current engineering specifications utilize only a few discrete points on the pedal force (PF), pedal travel (PT), and response time (RT) curves owing to the multi-dimensional nature of these curves, and thus may not represent the entire curves well. Principal component analysis (PCA) is applied in order to analyse the entire shapes of the three curves and to identify the underlying variation modes. Then, buyer satisfaction scores from a mail survey are regressed on the variation modes. Finally, the ideal shapes of the PF, PT, and RT curves are developed for the sport segment, the coupé and sedan segment, and the truck segment to aid new brake system and vehicle design. Translating the VOC from marketing research into engineering specifications is a critical step and PCA is a valuable tool for this translation.
    Type of Medium: Online Resource
    ISSN: 0954-4070 , 2041-2991
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2010
    detail.hit.zdb_id: 2032754-7
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    Online Resource
    Online Resource
    SAGE Publications ; 2012
    In:  Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering Vol. 226, No. 9 ( 2012-09), p. 1185-1201
    In: Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, SAGE Publications, Vol. 226, No. 9 ( 2012-09), p. 1185-1201
    Abstract: Vehicle acceleration is one of the key characteristics that influence customer satisfaction. Pedal displacements and vehicle speeds are necessary to represent the performance of acceleration: how much acceleration a vehicle is capable of if the acceleration pedal is displaced at a certain speed. The result of varying the acceleration pedal is called the acceleration response surface in three-dimensions. The current approach utilizes a few discrete levels of acceleration response surface for engineering specification because of the three-dimensional nature of the acceleration response surface (ARS), and thus may under-represent the entire acceleration response surface. The underlying variation modes of the acceleration response surface among 92 vehicles are identified by applying principal component analysis in which the entire ARS is analyzed. The 92 vehicles are specifically between the 2006- and 2007-model years with automatic transmission and 4-, 6-, and 8-cylinder engines. Two variation modes are identified, which differentiate vehicles from each other: how fast a vehicle can accelerate overall and how quickly a vehicle reaches its peak acceleration at launch with short or long pedal displacement. The association between the two variation modes and buyer satisfaction from mail surveys similar to Consumer Reports is analysed. Finally the ideal shape of the acceleration response surface is developed.
    Type of Medium: Online Resource
    ISSN: 0954-4070 , 2041-2991
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2012
    detail.hit.zdb_id: 2032754-7
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
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