Simulated and experimental study of antilock braking system using grey sliding mode control

Firefly algorithm tuned fuzzy set-point weighted PID controller for antilock braking systems

“…The comparison of responses of controllers presented in (Oniz, 2007) and proposed controllers, is presented in Table 6. It clearly indicates that the proposed controllers are more adaptive than the others for the disturbances and produce responses with negligible fluctuations around the set-point.…”

“…A band-limited white noise is added at slip and velocity measurements of the system for getting more realistic results due to the fact that most of the practical systems are subjected to disturbances. The numerical value of noise power for slip and speed measurements are selected as 10 -5 and 0.2 respectively (Oniz, 2007;Oniz et al, 2009) In Figure 7, it is found that the mere Set-Point weighting with b=0.9, leads to a response with overshoot. This means that the vehicle experiences a front and back motion when applying the brake input, which is not a desirable one.…”

“…Therefore, intelligent controllers should be developed to deal with all these uncertainties. Many control strategies such as Sliding mode control (Harifi et al, 2005;Unsal, & Kachroo, 1999;Choi et al, 2002;Oniz, 2007;Oniz, et al, 2009), intelligent techniques using Fuzzy Logic (Mauer, 1995;Radac et al, 2008), Artificial Neural Networks (Layne et al, 1993;Lin & Hsu, 2003), and Neuro-fuzzy control (Topalov, et al, 2011) are reported earlier in literature. Genetic Algorithm is used in finding optimum values of fuzzy component (Yonggon & Stanislaw, 2002).…”

“…The controller is designed to regulate the wheel slip in optimum level (0.08 to 0.3). Computer simulations have been performed in MATLAB-SIMULINK, version 7.11.0 (R2010b) and the performance of the proposed controller has been compared with SPWPID, GAFSPWPID controllers and the controllers presented in Oniz, (2007) and Oniz, et al (2009) …”

A comparative study of two control schemes for anti-lock braking systems

“…For example, Jing et al [11] proposed SMC that incorporates a moving sliding surface, based on global sliding mode control (GSMC) strategy for the slip control. Also, a new SMC methodology called the grey sliding mode control method, has been proposed as a possible solution to the ABS problem [12], [13]. This new SMC scheme has been shown to effectively alleviates the chattering-effect in the conventional SMC.…”