Design and simulation of anti-lock braking system based on electromagnetic damping phenomena

This paper presents an Antilock braking system (ABS) with electromagnetic damping, ABS assists driver to keep the steering control during hard braking. In the absence of ABS, it is difficult to stop the car from spinning because of wheel lockup in hard braking conditions, particularly on slippery surfaces. Mostly ABS are used with conventional brakes e.g. hydraulic or pneumatic pressure brakes. In this paper, we propose an ABS with magnetic damping because conventional ABS uses friction to convert kinetic energy into heat and suffers from problems in terms of time taken for building up of pressure, thermal failure of the braking system during contract movement, limitation of braking performance at high speed, noise and brake pad wear which can be alleviated by the use of electromagnetic damping to replace pneumatic damping. A mathematical model was built to calculate the torque of electromagnetic braking system and simulation of a conventional ABS and an electromagnetic ABS is performed in Matlab/Simulink. A Propotional Integrative Derivative (PID) controller is tuned by hit and trial method to analyze various parameters of the ABS and electromagnetic braking system. Simulation results show that the ABS with electromagnetic damping provides better result in slip regulation and reduction in the stopping distance of the vehicle.