Implementation of four-wheel antilock braking system for commercial vehicle using bang-bang controller

The need for safety equipment that can prevent the wheels of a vehicle from locking up under emergency or harsh braking conditions has prompted the need for the AntiLock Braking System (ABS). However, The Anti-Lock Braking System helps the driver to maintain steering ability and also to avoid skidding while braking. This paper proposes an implementation of a four-wheel antilock braking system (ABS) for vehicle speed estimation using a Bang-bang controller. This will provide greater vehicle stability and control during lock-up to the drivers, reduce stopping distance, and most importantly reduce the collision rate to a lower percentage. The simulation was carried out using MATLAB/SIMULINK to achieve the desired slip ratio with the control scheme using the Bang-Bang controller. Graphs of velocity speed, rotational speed, stopping distance, braking torque for a system without an anti-lock braking system and Bang-bang controller was plotted and compared with each other. The performance of vehicle braking Bang-Bang controller was analysed with Bang-Bang controller mode and the result shows that the ABS with Bang-Bang controller will significantly help the driver to steer while braking heavily and could prove to be lifesaving.