Abstract:
The anti-Lock brake system (ABS) is a safety tool for vehicles to monitor wheel lock-up and
modulate brake pressure to provide controlled braking under most situations. The system is
subjected to unknown uncertainties caused by changing the vehicle model dynamics and road
conditions which requires to development of strong control system. This paper focuses on the
development and simulation of the ABS model for the SUV (Super urban vehicle) in the
MATLAB/Simulink with Fuzzy logic controller and CarSim software so optimum brake
performance will be obtained and progressively increasing car accidents due to sudden braking
will be reduced in the country. First, the mathematical modeling of the system has been
developed depending on the vehicle speed, and the slip ratio between the tire and the road
conditions. Then, the Fuzzy logic control algorithm was designed and subsequently simulated
with a quarter vehicle dynamic model using MATLAB/Simulink software on different road
conditions, including wet, and dry, and different speeds. Finally, the simulation carried out in
CarSim software interlinked with the MATLAB/Simulink and the performance of the developed
controller were compared and concluded that the braking distance and vehicle stability were
improved under the simulation process
