Patent ID: 8364354

Claim:
A construction vehicle configured to move materials, the construction vehicle including: a chassis; a plurality of traction devices operably coupled to the chassis to propel the chassis; a blade supported by the chassis and configured to interact with materials to be moved by the vehicle; and a hydraulic system including a plurality of hydraulic cylinders positioned to move the blade between a plurality of positions; a source of pressurized fluid providing pressurized hydraulic fluid; a plurality of user inputs positioned to receive inputs from an operator of the construction vehicle; and a control system having a manual mode and an automatic mode, a controller, and memory storing a predetermined location of the blade, when in the manual mode, pressurized fluid from the source of pressurized fluid is available to a first hydraulic cylinder of the plurality of hydraulic cylinders at a first maximum pressure and the flow of fluid to the first hydraulic cylinder in controlled through operator input to a first input of the plurality of user inputs, when in the automatic mode, pressurized fluid from the source of pressurized fluid is available to the first hydraulic cylinder at a second maximum pressure that is less than the first maximum pressure and the flow of fluid to the first hydraulic cylinder is controlled by the controller using the predetermined location stored in the memory.