| INVESTIGATION ON EVALUATION OF YAW STABILITY FOR MEDIUM COMMERCIAL VEHICLES |
| B. KWON1, S. KIM2, K. YI1,* |
1School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, Korea
2Korea Automobile Testing & Research Institute, Korea Transportation Safety Authority, 200 Samjon-ro, Songsan-myeon, Hwaseong-si, Gyeonggi 18247, Korea |
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Received: June 11, 2015; Revised: May 4, 2016 Accepted: May 19, 2016. |
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| ABSTRACT |
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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. |
| Key Words:
Yaw stability, Medium commercial vehicle, Electronic stability control, Test scenario |
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Corresponding Author.
K. YI , Email. 
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