Error Control in Co-Simulation based FMI

Abstract

Simulation based on multidisciplinary systems plays a pivotal role in the aerospace field. And it uses co-simulation as its primary approach. The functional model interface (FMI) standard makes it possible to easily implement by defining a series of standard interfaces. But, additional errors caused by co-simulation yet cannot be avoided in FMI. In order to compensate for this shortcoming, and to make the FMI standard be better applied. After an introduction of the FMI standard, this paper proposes two methods of error control: variable macro-step size and dynamic selection of extrapolation functions, and apply it to the FMI standard. A specific case is studied to demonstrate the effectiveness of the proposed control method.