DOUBLE CUT CONTROL FOR DISC SAW FELLING HEAD

摘要

A double cut control system and method are disclosed for a felling head having a saw disc. The felling head may be positioned by a knuckle boom, which includes a hoist boom and a stick boom coupled by a knuckle and positioned by hydraulic cylinders actuated by a hydraulic pump and hydraulic control valves. The control system has an operator input device for input of operator commands including a double cut control input command. Position sensors provide position values for the knuckle boom and the felling head. At least one controller receives the operator commands and position values. After receiving the double cut control input command, the controller generates a first cut control signal to direct flow of hydraulic fluid to the hydraulic cylinders to position the knuckle boom to advance the felling head in a single fore-aft direction a set distance corresponding to a partial depth cut.

主权项

1. A double cut control system for a felling head having a saw disc and positioned by a knuckle boom having a hoist boom and a stick boom coupled by a knuckle, the knuckle boom being positioned by hydraulic cylinders actuated by a hydraulic pump and hydraulic control valves, the control system comprising:
an operator input device for input of operator commands including a double cut control input command; position sensors providing position values for the knuckle boom and the felling head; and at least one controller receiving the operator commands and position values; wherein, after receiving the double cut control input command, the at least one controller generates a first cut control signal to direct flow of hydraulic fluid to the hydraulic cylinders to position the knuckle boom to advance the felling head in a single fore-aft direction a set distance corresponding to a partial depth cut.