IEEE Transactions on Automatic Control, Vol.44, No.7, 1444-1445, 1999
Lessons from an example in "on the stability of discrete-time sliding mode control systems"
Initial conditions are presented for which the indicated example is shown to fail to meet the paper's theoretical requirements. The importance of this error is that the example now represents a counterexample to the suggested form of the sliding mode control, demonstrates a necessary restriction on any such quasisliding mode control, and illustrates that restrictions presented in another paper are not global.
Keywords:VARIABLE STRUCTURE SYSTEMS;DESIGN