In this paper, in order to eliminate the chattering problem, afuzzy inference engine is used to remove the discontinuity ofthe sign function of the SMC at the reaching phase.Combining the FC with the adaptive SMC (18) results indeveloping the proposed FASMC methodology. The mainadvantage of this method is that the robust behavior of thesystem is guaranteed. The second advantage of the proposedFASMC is that the performance of the system in the sense ofremoving chattering is improved in comparison with thesame SMC technique without using FC.