Research on speed synchronization control of double motors of hydraulic chassis simulation experimental device of engineering vehicles

The system of one hydraulic displacement pump driving two hydraulic displacement motors to achieve speed synchronization is a multiple inputs and multiple outputs one with coupling and nonlinear characteristics. It is also a key job in researching on engineering vehicles hydraulic chassis simulation experimental device. A control strategy that the flow rate equilibrium was combined with pressure and speed feedback, was put forward. By simulation, it indicates that this system is stable and can get good synchronization results even suffering the different load disturbances. This method is simple and easy to be used without decoupling. It is suitable for speed synchronization control of engineering vehicles.