Patent ID: 8527158
Filing Date: 2013-09-03
Classification: E02F

Abstract:
1. A control system for controlling movement of a work tool of a machine near a desired end of travel position of the work tool, the machine including a boom member operatively connected to a frame, a stick member operatively connected to the boom member and the work tool operatively connected to the stick member, the control system comprising: a controller configured to: store target signals indicative of end of travel positions of the boom member, the stick member and the frame; receive signals indicative of actuation of an operator input device associated with the machine, the operator input device actuation signals indicating a desired movement of the work tool; determine positions and velocities of the boom member, the stick member and the frame based at least in part upon signals received from sensors on the machine; compare desired speeds of movement of the boom member, the stick member and the frame based upon the operator input device actuation signals to a data map including speeds of movement of the boom member, the stick member and the frame based upon proximity to their respective end of travel positions and the velocities of the boom member, the stick member and the frame; generate command signals to control movement of the boom member, the stick member and the frame based upon whichever movements are slower as between the desired speeds of movement and the data map speeds of movement upon the work tool moving towards the end of travel position; generate command signals to control movement of the boom member, the stick member and the frame at the desired speeds of movement upon the work tool moving away from the end of travel position; and transmit the command signals to the control system to control movement of the boom member, the stick member and the frame near the desired end of travel position of the work tool.