The parameters which the rotate speed change, working resistance and depth are included synthetically control the hydraulic hitch in tractor. The tractor is working at best state. The performance sof tractor are best expect interferers. Productivity economy in fuel intension in operating and quality are improved. The hydraulic hitch is a part of tractor. So performances of the hydraulic hitch decide performances of tractor. Theory and experiment are studied on the hydraulic hitch and the hydraulic loading.The control principle is analyzed on the hydraulic hitch. The adjusted fashion and control methods are choose . The mathematical model is establishd on the force. Based on the simulation of MATLAB, in the PID control method, the dynamic performance analysis to the control system is also given, Include time and frequency responses. Controllability and observability are analyzed to the hydraulic hitch. The best performance is given through peaks random collocating. Fuzzy control is applied to the tractor-mounted plough control system in this paper. Using Fuzzy Toolbox and SIMULINK. Toolbox of MATLAB to design fuzzy controller and realize the software simulation. Using designed MCS96 microcomputer, experiments of the force, location and force & location adjusted fashion are finished adopting PID control. The dynamic performances of the force and location adjusted fashion are satisfactional. The results of theory and experiment are consistent. The results of experiment express the dynamic performances of the hydraulic hitch are satisfactional to tractor. Experiments of the force and location adjusted fashion are finished adopting Fuzzy control. The results of experiments express Fuzzy control on the hydraulic hitch is feasible. Finally The results of experiments indicate designed MCS96 microcomputer is proper.The mathematical model is establishd on the hydraulic loading, the dynamic performance analysis to the control system is also given, Include time and frequency responses. Controllability and observability are analyzed to the hydraulic loading, the dynamic performances are improved through emendation. Experiments are done. The results of experiments are satisfactional and consistent with theory. The results of experiments indicate the design of the hydraulic loading is right. |