Modeling And Simulation Research Of Hydrostatic Transmission System On Generating System In Walking Machines

With the development of electric and electron technology, more and more active demands in power supply present in moing and walking machines, particularly in military affairs. The generating system in walking machine acts as an especially role in military war. Therefore, the generating system in walking machine brings extensive attentions from experts, and has high value applications, such as, industry applications, weapon equipment system. The supply measure of traditional generating system is too expensive to civil affair and not enough flexible to military affairs, so it is very important to completely solve the problem of power supply in walking machine. The concerned technologies include hydraulic, electric, hydrostatic transmission, computer and sensor. Based on this project, this paper sets up the mathematic model and simulation model of hydrostatic transmission in generating system in walking machine, and put forward a good measure to settle the power supply.Based on the classical control theory, this paper establishes a simulation model of pump-control-motor speed system in MATLAB/Simulink software. The impacts that are induced by the varying of parameters, uncertain load torques, engine speed presented in control performances are evaluated. And this thesis also studied the hydrostatic performances of the hydrostatic transmission.The mathematic model and simulation model of the valve-control-motor speed system are set up in MATLAB/Simulink. Stability of the valve-control-motor speed system has been studied firstly. And then the varying of parameters, uncertain load torques, engine speed presented in control performances are evaluated. Finally, this paper contrast the valve-control-motor speed system with pump-control-motor in control performances.Based on the item of the hydrostatic transmission in generating system in moving and walking machine, this paper does some experiment of pump-control-motor speed system, validates the simulation result.