Design of an Integrated Power Electronics and Control System for Optimized Regenerative Braking to Mitigate Battery Degradation in Electric Vehicles

Regenerative braking enhances energy efficiency in electric vehicles (EVs) but can accelerate battery degradation. This study evaluates fuzzy logic, adaptive PID, and hybrid Fuzzy-PID control systems for mitigating battery degradation in regenerative braking. Field experiments revealed that fuzzy logic achieved superior performance, reducing charging cycles and limiting temperature increases, thereby minimizing battery degradation. In contrast, adaptive PID and hybrid Fuzzy-PID generated unstable currents and increased charging cycles, despite lowering battery temperature. These results demonstrate the effectiveness of fuzzy logic in optimizing regenerative braking and extending battery lifespan.