Driving System Digital Controller, Dsp-based Asphalt Paver

As one of the important machines used in highway buildings, the technical level and intelligent degree of the asphalt paver has directly affected the quality of construction. The auto control of the travelingsystem of the paver plays one of the most important roles in this improving. The transmission method and control theory of the hydraulic traveling system of the paver are analyzed in the paper. And so on, a specific and reasonable strategy has been put out. The paper accomplishes the hardware design of the control system utilizing DSP and the software utilizing CC2000 software. It not only controls the machine' s running forwards and backwards starting, braking turning right and left, and so on , but also puts great emphasis on the study of constant-velocity control. Aiming at solving the shocking problem during the processes of starting and stopping of the traveling hydraulic system, the paper has set up a the ramping function of the minimum ramping time. It combines the fuzzy-adjustable-PID control strategy and the dead-domain control strategy to solves no-stable problem when paver works at low speed. It also optimizes the PID-parameter by MATLAB software. Finally, the function and property of the controller is verified and adjusted by experiment.