Abstract:

A simulation analyzation was made for electric vehicle (EV) electrical performances to match and
adjust the electric parameters in the early stage of EV design. An EV electric model of electric vehicle was
built by using virtual workbench LabVIEW without bench verification test. The basic electrical parameters were
selected about the power battery, the electric motor, and the other electrical components according to the initial
design requirements. Parts of the electrical model were established in StarSim, based on these parameters.
The LabVIEW Sub VI and proportional integration (PI) control was combined to simulate the actual operating
environments, the transient impact, the steady state driving, and the limiting conditions driving. The results show
that the electrical model is reliable and can be used to analyze and verify electric vehicle electric properties, and
to ensure electric vehicle electrical safety.

Key words: electric vehicle (EV), electrical model, electrical matching, equivalent circuit model, permanent magnet synchronous motor (PMSM), working conditions