Slip Ratio Control of Anti-Lock Braking System with Bang-Bang Controller

Anti-lock Braking system (ABS) is a safety and control tool implemented in vehicles that prevents the wheel lock-up during severe or panic braking. The existing ABS controls have the ability to control and regulate the level of pressure to optimally maintain the wheel slip within the vehicle stability range. However, the ABS shows strong nonlinear characteristics for which the vehicle equipped with existing controllers have a tendency to over steer and become unstable. In this paper a mathematical model of ABS with Bang-Bang control algorithm have been implemented in Simulink and extensive simulation studies is also performed to verify the effectiveness of the controller and the results shows that proposed controller is able to maintain the wheel slip at the desired reference value. The braking performance in both ABS mode and Non-ABS mode has been evaluated by simulation. .