Mathematical Model Development in Matlab Simulink

Remote work for a specialist in the development of mathematical models of the curvilinear motion of a vehicle. It is necessary to develop a mathematical model of the movement of mobile energy means in Matlab Simulink. There is a mathematical description of the blocks that make up the model (equations of motion and intermediate dependencies for calculation), but the model does not work well. It is necessary to deal with the model and make it so that it can describe the movement at various dependencies of the steering wheel angle from time.