Patent ID: 8453441

Claim:
A system adapted to control the movement of an implement of an earthmoving machine, the system comprising: a hydraulic actuator adapted to move the implement, the actuator comprising a piston that defines first and second chambers within the actuator and a piston rod coupled to the piston and to the implement; a variable displacement pump for delivering a pressurized fluid to and receiving pressurized fluid from the chambers of the actuator; a sensor adapted to detect the piston or the piston rod of the actuator and generate therefrom an output that corresponds to a stroke position of the piston within the actuator; and a controller that controls the displacement of the variable displacement pump in response to the output of the sensor, wherein the controller is operable to execute an algorithm to reduce the flow rate of the fluid from and to the variable displacement pump to thereby reduce the velocity of the piston of the actuator as the stroke position of the piston approaches an end of a piston stroke thereof within the actuator and prevent the piston from impacting the actuator at the end of the piston stroke.