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Investigation on evaluation of yaw stability for medium commercial vehicles

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Abstract

This paper proposes test scenarios for evaluation of yaw stability for medium commercial vehicles. Maneuvering, speed, longitudinal tire force, tire-road friction coefficient, road slope, and load condition are considerable factors that have effect on the medium commercial vehicle yaw stability. After conducting an analysis on these six factors, effective test scenarios were developed. A sine with dwell test is well known as a test scenario for evaluation of performance of electronic stability control (ESC) on passenger vehicles and heavy commercial vehicles. The SWD test was modified considering medium commercial vehicle dynamics, and the ramp steer maneuver with maximum acceleration test was proposed. Simulation validation has been conducted using field test data. From simulation study, it was shown that the ESC system for medium commercial vehicle is effectively evaluated by the proposed test scenarios.

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Abbreviations

F x, F y, F z :

longitudinal, lateral, vertical tire force, N

α :

tire slip angle, rad

μ :

tire-road friction coefficient

C y :

cornering stiffness, N/rad

a y :

lateral acceleration, m/s2

g :

gravitational constant (= 9.81 m/s2)

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Authors and Affiliations

  1. School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 08826, Korea

    B. Kwon & K. Yi

  2. Korea Automobile Testing & Research Institute, Korea Transportation Safety Authority, 200 Samjon-ro, Songsan-myeon, Hwaseong-si, Gyeonggi, 18247, Korea

    S. Kim

Authors
  1. B. Kwon
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  2. S. Kim
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  3. K. Yi
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Correspondence to K. Yi.

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Kwon, B., Kim, S. & Yi, K. Investigation on evaluation of yaw stability for medium commercial vehicles. Int.J Automot. Technol. 18, 49–54 (2017). https://doi.org/10.1007/s12239-017-0005-9

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  • DOI: https://doi.org/10.1007/s12239-017-0005-9

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