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International Journal of Automotive Technology > Volume 16(2); 2015 > Article
International Journal of Automotive Technology 2015;16(2): 317-328.
LATERAL STABILITY CONTROL OF FULLY ELECTRIC VEHICLES
M. T. EM RLER1, K. KAHRAMAN2, M. ENT2, O. U. ACAR2, B. AKSUN GÜVENÇ2, L. GÜVENÇ2, B. EFEND O LU3
1Istanbul Technical University
2Istanbul Okan University
3TOFA R&D Center
ABSTRACT
The problem of vehicle lateral stability control for fully electric vehicles is addressed in this paper using two different approaches. One of them is a novel integrated lateral stability control (ILSC) system and the second one is a regenerative braking based lateral stability control system (RB-LSC). The proposed ILSC system is based on corrective yaw moment calculation, braking torque distribution and electric motor torque reduction. The proposed second method ? RB-LSC - is a simpler method than the ILSC system. In this method, electric motor torque is regulated according to the vehicle side slip error and/or the vehicle yaw rate error. The performances of the proposed methods are evaluated under severe road conditions and extreme maneuvers using the commercially available CarSim vehicle dynamics software. The results show that the proposed control systems improve vehicle lateral stability significantly.
Key Words: Stability control, Electric vehicles, Individual wheel braking, Electric motor torque reduction, Wheel slip control, Regenerative braking
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