Integrated Optimization of Ride Comfort and Battery Degradation in Pure Electric Vehicles with Active Suspension

Rahbari, Mohammad Ali; Salehpour, Mohammad; Bahramkhoo, Moharam; Gohari Rad, Sina; Alijani, Ali

doi:10.22068/ase.2026.750

Volume 16, Issue 2 (6-2026) ASE 2026, 16(2): 5024-5041 | Back to browse issues page

‎ 10.22068/ase.2026.750

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Rahbari M A, Salehpour M, Bahramkhoo M, Gohari Rad S, Alijani A. Integrated Optimization of Ride Comfort and Battery Degradation in Pure Electric Vehicles with Active Suspension. ASE 2026; 16 (2) :5024-5041
URL: http://ase.iust.ac.ir/article-1-750-en.html

Integrated Optimization of Ride Comfort and Battery Degradation in Pure Electric Vehicles with Active Suspension

Mohammad Ali Rahbari

Department of Mechanical Engineering, BaA.C., Islamic Azad University, Bandar Anzali, Iran

Abstract: (63 Views)

Pure electric vehicles are increasingly important for reducing transportation emissions, improving energy efficiency, and supporting sustainable mobility. However, their performance depends strongly on battery health, energy consumption, and vehicle dynamic behavior. This study proposes a genetic-algorithm-optimized fuzzy active suspension controller for a pure electric vehicle by simultaneously considering ride comfort, suspension travel, battery state of charge, and battery degradation. An integrated EV–active suspension simulation framework is developed by combining the electric powertrain, battery aging model, and full-car active suspension model. The fuzzy controller membership functions are optimized using a genetic algorithm and evaluated under UDDS, NEDC, and WLTP Class 3 driving cycles. The objective function combines weighted ride comfort, front and rear suspension travel, final SOC, and battery capacity loss. The results show that the optimized controller improves ride comfort by 15.32% in NEDC, 2.18% in UDDS, and 2.36% in WLTP Class 3. Battery aging is also reduced by 3.51%, 5.17%, and 4.58% under the same cycles, respectively. Overall, the proposed GA-based fuzzy controller provides an effective compromise between passenger comfort, suspension performance, actuator energy demand, and battery health preservation.

Keywords: Pure electic vehicle Aging Active suspension Optimization Comfort ride

Full-Text [PDF 2096 kb] (21 Downloads)

Type of Study: Research | Subject: Vehicle dynamics, transmission