Dynamic Behavior Analysis of a Three-Phase BLDC Motor under Scalar Control Strategy for Automotive Actuation Systems

As the automotive industry is increasingly focusing on development of both partially and full-electric vehicles, the improvement and further concepts analysis of electric drive systems represents a priority for adopting the best cost performance solutions. This paper proposes a theoretical study followed by a simulation analysis of the dynamic response of an electrical actuator system driven by scalar control algorithm that can provide corresponding drive signals to (either) a Permanent Magnet Synchronous Motor (PMSM) or a Brushless Direct Current (BLDC) motor. For the basic design of the PMSM / BLDC motor was intensively used the Finite Element Method (FEM) software tool to obtain a more realistic and plausible model. The equivalent mathematical model of the proposed system (and its basic components) was further implemented in MATLAB / Simulink software environment for extended analysis under both static and dynamic operating conditions. One of the basics objectives of this study is to analyze the possibility of further integration of this type of systems into electric vehicles platforms, such as brake-by-wire or steering actuation systems.