Asphalt Paver Driving System Plc Control Technology

The paper summarizes the development of the control technology of paver's vehicle system; discusses the feasibility of the PLC application to vehicle system; calculates and examines the working resistance and power of the control system as well some concerning parameters of the hydraulic system; builds the driving system velocity characteristic; accomplishes the hardware design and the software design according to the functional requirements of vehicle system and the features of PLC; adds the PID compensation to the closed circuit velocity control; sums up the mathematic model of hydraulic pump-motor system and defines the controller parameters; In the end, the simple dynamic simulation basing on the control system model and the simulative test are carried out to testify the reasonableness and the feasibility of the designed PLC control system.