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Multiobjective optimal design of structure and control of a continuously variable transmission

An approach to solve the mechatronic design problem is to formulate the problem as a multiobjective dynamic optimization problem (MDOP), where kinematic and dynamic models of the mechanical structure and the dynamic model of the controller are considered besides a set of constraints and a performance criteria. This design methodology can provide a set of optimal mechanical and controller parameters so that the desired dynamic behavior and the performance criteria are satisfied. In this paper a MDOP is proposed and applied to a continuously variable transmission (CVT). Performance criteria are the mechanical efficiency and the minimal controller energy. The goal attainment method and a sequential approach are used to solve the MDOP.