Research On The Control Of Paver Walking Speed Stability

Along with the time development paving roadways quality were put forward higherrequest, the paver that has very important influence on it are more and more concerned.Paver is an important road construction equipment, which has high efficiency and istwidely used in modern construction. The steadiness of paver’s walking speed decideslargely its working standard on the road and has direkt relationship with the road surfaceroughness, density and segregation degree. There are many influence factors of walkingspeed which are hard to eliminate. So an appropriate algorithm which can improve thesuitable of speed and meet the performance requirements of paver are deadly needed. Thereasonable control algorithm has been always the weak link in the paver field, thereforethe further research has important theoretical and practical significance.This work aims at the controlling of the walking speed and concentrate on thereaserch and realization of the constant speed walking control algorithm. The structure ofpaver walking system and the principle of speed control will be reaserched, detailed andaccurate mathematical model will be established. Control algorithm which is abased ondisturbance observer self-tuning fuzzy PID will be determined according to thecharacteristics of the system. The computer model of the simulation research will be doneand the feasibility and rationality of the control algorithm used in paver will be varifiedbased on the concrete experiments.First of all, this paper briefly introduces the function of paver, the trend of thedevelopment of research at home and abroad and analyzes the current situation, travelsystem composition and working principle. It also discusses the of researching walkingspeed stability control paver and gives the research methods, the content and the target.Detailed mathematical model will be established on the basis of the theories such as theforce balance equation and Flow continuity equationSecondly, the article analyzes the characteristics and application scope of theconventional PID control algorithm and the fuzzy control algorithm. According to thecontrol of the walking speed stability paver characteristics and strong adaptability of the fuzzy adaptive PID control each of the component part of controller will be discussed inthis paper. The method of interference observer estimation and compensation interferenceeffect the performance of the system. And on this basis will be applied to give a stabilitycontrol walking speed paver structure diagram.Thirdly, the simulation model of paver control system of walking speed stability willbe established with Matlab/simulink software. The dynamic performance of the systemunder load disturbance will be simulated, in order to vetify the inhibition of disturbanceobserver interference and the funktion of improving system robustness. Simultaneouslysimulation study is condacted. The simulation results show that the proposed paverwalking speed stability control scheme obviously improving the system dynamicperformance and steady precision, and has strong adaptability.Finally, on the basis of theoretical analysis and experimental results the use ofself-tuning fuzzy PID control algorithm paver walking speed is verified to be correct. Theexperiment and simulation results are basically the same. Both of them prove that theproposed control scheme is feasible, and the adjusting performance is better than thetraditional control. It obviously improves the stability of walking speed and its applicationin the past construction can improve the quality of pavement paver.