Autonomous Servo-Electro Braking System for High-Speed EV

Rising in popularity of electric vehicles on the roads has created several challenges. Accidents remain one of the most serious road accidents due to which the high-voltage batteries in electric vehicles can lead to fire or even instant death of the passenger(s). Autonomous Emergency Braking System (AEBS) was developed to solve braking problems associated with ABS. However, the system is designed to notify the driver rather than act on it, so there is always a high chance that AEBS continually causes problems when driving in close proximity. In addition, AEBS is only intended for vehicles with low speeds of around 70 km/h. The purpose of this paper is to present the development of a fuzzy intelligent adaptive autonomous servo-electromagnetic braking system (ASEBS) for both close-range driving and high-speed electric vehicles to avoid or mitigate a collision without driver reaction. An intelligent fuzzy logic algorithm was introduced to automatically brake the vehicle regardless of its operating speed and vehicle-to- object (V2O) distance to prevent or mitigate a collision. An intelligent fuzzy logic controller controls the power flow to the servo-electromagnetic drive to provide vehicle deceleration and emergency stop. A laboratory pilot model of ASEBS with a double drive has been developed. The ASEBS intelligent fuzzy logic controller has been tested under uniform deceleration and emergency braking of a vehicle, both when driving in close proximity and high speed.