AcasestudyofPIDcontrollertuningbyageneticalgorithm.Acomparisonofcontrollertuningmethodsfromadesignviewpointofthepotentialforenergysavings.AcomputersoftwareforPIDtuningbynewfrequencydomaindesignmethod.Acontrolmethodologyforaninchwormpiezomotor.Acontrollerforaninchwormpiezomotor.