Application Height Control System of a Tractor Carrying up Weak Slope at Driving State

When a tractor is carrying up a scraper under transportation of soil on a weak slope, the application height of the effective driving force of the tractor could be controlled to obtain the maximum drawbar pull. Several tractive performances of a 50kN flexible rubber tracked vehicle trailing up a given weak sandy slope terrain of Cone Index 95kPa have been simulated. As the results, it is clarified that the optimum application height of the drawer pull to take the maximum optimum effective driving force of the tractor carrying up the weak sandy slope terrain of 0, π/18, π/9 and π/6 rad results in about 60, 60, 20 and -40cm for the vehicle eccentricity 0.00, respectively. Then, the automated control system of the optimum application height should be considered in accordance with the tractive effort jointed to the scrapper.