Check this out:

The proposed methodology is implemented in Simulink package of MATLAB (2018a). An HEPS has a combination of internal combustion engine (ICE) and electric system.

A failing in your article is an explanation of MatLab. What does (2018a) represent? Is this from your homework?

Another example:

A brushless motor with closed-loop torque control is used. The rotational force (F) from the engine crankshaft of the ICE is connected to the mechanical rotational port of the generator ! Reference source not found.

There are some references to a close-loop torque control, but your statement that a reference source is not found is unclear. To what are you referring?

I just wanted to clear things up here. I do appreciate your response and look forward to reading more of your work.