This thesis aims to restructure a real-time model for a hardware-in-the-loop (RT HIL) system incorporating an inverter, electric motor, mechanical model, and bus simulation. Hardware-in-the-loop simulation is used to develop and test complex, real-time embedded systems. It allows for integrating physical and simulated components to create a comprehensive testing environment, enabling developers to evaluate the performance and behavior of control systems under real-world conditions without the need for a complete physical prototype. This method is precious in the automotive industry for safely and efficiently testing and validating electric motor control systems and other electronic control units (ECUs). The restructuring utilizes a multi-core approach to enhance the reusability of individual components while preserving intellectual property.