IMPLEMENTATION OF SAFETY AND ELECTRICAL PROTECTION IN ELECTRIC VEHICLE’S.

ABSTRACT The rapid adoption of Electric Vehicles (EVs) has brought significant advancements in sustainable transportation while simultaneously introducing new safety and protection challenges. The high-voltage components, energy storage systems, and charging infrastructure inherent in EVs present risks such as short-circuits, overcurrent conditions, thermal runaway, leakage currents, and electric shock hazards. This project, titled “Implementation of Safety and Electrical Protection in Electric Vehicles (EVs)”, investigates the design, simulation, and implementation of safety measures that enhance both operational reliability and passenger protection. The methodology adopted in this work followed a design–simulate–validate approach. Protection systems were modeled for four key domains: battery pack, motor drive, charging system, and thermal management. Circuit diagrams, block diagrams, and schematic representations were developed to illustrate protective strategies such as the use of fuses, relays, solid-state circuit breakers (SSCBs), residual current devices (RCDs), insulation monitoring devices (IMDs), and thermal cutoffs. Simulation of fault conditions—such as short circuits, overcurrent events, and abnormal temperature rises—was performed to evaluate system responses and compliance with international standards like ISO 26262, IEC 61851, and UL 2580. The results demonstrate that with properly coordinated hardware protection and intelligent control systems (such as Battery Management Systems), EVs can achieve higher safety, reduced fault impact, and longer operational life. Real-world case studies and waveform analyses show that fast fault detection combined with automatic system isolation can significantly reduce the severity of hazardous events. The project concludes that the effective implementation of electrical protection in EVs is not only essential for user safety but also for fostering wider acceptance and trust in electric mobility. Recommendations are provided for future improvements in advanced protection technologies, particularly solid-state circuit breakers and AI-assisted fault detection.