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International Journal of Automotive Technology > Volume 13(1); 2012 > Article
International Journal of Automotive Technology 2012;13(1): 87-95.
doi: https://doi.org/10.1007/s12239-012-0008-5
S. KIM1, Kihong Park1, H. J. SONG2, Y. K. HWANG2, S. J. MOON1, Hyun-Sik Ahn1, M. TOMIZUKA3
1Kookmin University
2Hyundai MOBIS
3University of California at Berkeley
Developed in this research is a control logic for the ARC (Active Roll Control) system that uses rotary-type hydraulic stabilizer actuators at the front and rear axles. The hydraulic components of the system were modeled in detail using AMESim, and a driving logic for the hydraulic circuit was constructed based upon the model. The performance of the driving logic was evaluated on a test bench, and it demonstrated good pressure tracking capability. The control logic was then designed with the target of reducing the roll motion of the vehicle during cornering. The control logic consists of two parts: a feedforward controller that generates anti-roll moments in response to the centrifugal force, and a feedback controller that generates anti-roll moments in order to make the roll angle to follow its target value. The developed ARC logic was evaluated on a test vehicle under various driving conditions including a slowly accelerated circular motion and a sinusoidal steering. Through the test, the ARC system demonstrated successful reduction of the roll motion under all conditions, and any discomfort due to the control delay was not observed even at a fast steering maneuver.
Key Words: ARC (Active Roll Control) System, Rotary-type hydraulic actuator, Stabilizer, Roll reduction
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