During the past decade we have had to confront a series of control design prob- lems - involving, primarily, multibody electro-mechanical systems - in which nonlinearity plays an essential role. Fortunately, the geometric theory of non- linear control system analysis progressed substantially during the 1980s and 90s, providing crucial conceptual tools that addressed many of our needs. However, as any control systems engineer can attest, issues of modeling, computation, and implementation quickly become the dominant concerns in practice. The prob- lems of interest to us present unique...
During the past decade we have had to confront a series of control design prob- lems - involving, primarily, multibody electro-mechanical systems - in...
