A middleware for signal-flow digital simulation models in electric vehicle powertrain

In this paper the interconnection problem in signal-flow digital simulation models is raised. A type of middleware, called virtual electrical bus model, is proposed to solve such a problem in electric vehicle powertrain, thus extends the scalability of the system. Analysis on the process of digital simulation shows that models applying the middleware can be compatible to traditional ones. The model is implemented in the Matlab/Simulink environment. The stability of the middleware is studied and some experimental results in the modeling of electrical vehicles powertrain is given.