In order to improve the performance and working condition of the loader steering system, and avoid the large damage to the hull, this article puts forward a view based on the Lab-view variable frequency hydraulic steering gear control method. Firstly, this article puts an analysis of the structure and working principle of variable frequency hydraulic steering gear. This lays the foundation for the design of variable frequency hydraulic steering gear control system. Then it leads to the digital model of variable frequency hydraulic steering gear control system. It utilizes optimization of fuzzy adaptive PID control algorithm to control system of variable frequency hydraulic steering gear. Finally it employs PID to control the steering angle. Meanwhile it analysis the hydrodynamic torque theory of variable frequency hydraulic steering theory, so it realizes the control of the steering angle of variable frequency hydraulic steering gear of the ship. Results: simulation experiments show that the proposed method can effectively reduce the damage caused by water when the ship is steering, so it improves the precision of steering control of variable frequency hydraulic steering gear of the ship. The proposed method of steering angle control improves the robustness of the system, and lays a foundation for the practical application of the ship variable frequency hydraulic drive steering gear system on the ship.
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