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Development of an evaluation method for quantitative driveability in heavy-duty vehicles

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Abstract

Subjective evaluations by experienced test drivers are primarily used to assess the driveability of vehicles in automotive companies. However, these evaluations are limited in terms of repeatability, incur costs, and require much time. Therefore, this study introduces a method of quantitatively evaluating the driveability of heavy-duty vehicles to circumvent these limitations. A vehicle experiment is conducted to measure data from an electronic control unit and an accelerometer to assess the driveability of heavy-duty vehicles. The evaluation indices for driveability are selected from previous studies on the objective and subjective methods of evaluating driveability according to various driving conditions. The indices include engine start, idle, acceleration, deceleration, constant speed, and start-up driving conditions. This research presents a quantitative evaluation method using the calculated values of each index and the correlated weighting factors of indices obtained from the regression analysis of the subjective evaluations. The driveability of heavy-duty vehicles is quantitatively evaluated under various driving conditions based on the proposed method. Results of the quantitative evaluation are similar to those of the subjective evaluations, and the proposed method is determined applicable in evaluating the driveability of heavy-duty vehicles.

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Author information

Authors and Affiliations

  1. School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-742, Korea

    Chang Woo Shin, Hyungkyoon Kim & Suk Won Cha

  2. Research & Development Division, Hyundai-Kia Motors Corporate, Hwaseong-Si, Gyeonggi-Do, 445-706, Korea

    Mun Kyum Kim

  3. Department of Automotive Engineering, Seoul National University of Science and Technology, Seoul, 139-743, Korea

    Wonsik Lim

Authors
  1. Chang Woo Shin
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  2. Hyungkyoon Kim
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  3. Mun Kyum Kim
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  4. Wonsik Lim
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  5. Suk Won Cha
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Corresponding author

Correspondence to Suk Won Cha.

Additional information

Recommended by Associate Editor Kyung-Soo Kim

Changwoo Shin received the M.S. degree and the Ph.D. in School of Mechanical and Aerospace Engineering from Seoul National University, South Korea, in 2008 and 2014. His research interests are dynamic modeling and control in powertrain systems.

Sukwon Cha received bachelor’s degree in Department of Naval Architecture and Ocean Engineering from Seoul National University, South Korea, in 1994, M.S. degree and the Ph.D. in Department of Mechanical Engineering from Stanford University, in 1999 and 2004, respectively. From 2003 to 2005, he was a Research Associate in Department of Mechanical Engineering, Stanford University. He is currently an Associate Professor in School of Mechanical and Aerospace Engineering, Seoul National University. His research interests are fuel cell systems, design of hybrid vehicle systems and application of nanotechnology to energy conversion devices.

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Shin, C.W., Kim, H., Kim, M.K. et al. Development of an evaluation method for quantitative driveability in heavy-duty vehicles. J Mech Sci Technol 28, 1615–1621 (2014). https://doi.org/10.1007/s12206-014-0107-5

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  • DOI: https://doi.org/10.1007/s12206-014-0107-5

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