A fuzzy Anti-lock braking system (ABS) controller using CMOS circuits

In this paper, an Anti-lock braking system (ABS) is designed using a fuzzy logic controller (FLC). The FLC is designed in 0.35 μm standard CMOS process and this design of the circuit makes it having high speed and low power consumption. Also, all the controlling signals and input signals are in voltage form and there is no need for digital programming. Voltage mode design of the circuits leads to the convenient use of FLC with sensors. The objective function is designed to keep the wheel slip to a desired level so that maximum wheel tractive force and maximum vehicle deceleration are achieved. By training this function to the Adaptive Nero-Fuzzy Inference System (ANFIS) of MATLAB software the main parameters of fuzzy controller singletons and shape of Membership Function Generators (MFGs) are measured, then all the circuits of the proposed fuzzy logic controller is designed using Complementary Metal-Oxide-Semiconductor (CMOS) circuits, at the end simulation results of the fuzzy logic controller using Hspice simulator and BSIM3v3 (Berkeley Short-Channel Insulated gate field effect transistor Model) parameters verifies the performance and functionality of the design.