Patent ID: 11883827
Assignee: VERMEER MANUFACTURING COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 22:
23. A method of controlling a material reduction machine including a cutting mechanism and a prime mover coupled with the cutting mechanism to drive the cutting mechanism, the method comprising:
operating the prime mover to drive the cutting mechanism at a no load operation speed;
feeding a piece of material to be comminuted to the cutting mechanism by operation of an infeed portion to start a first cutting cycle;
sensing, with a sensor that reports signals to a controller in control of the infeed portion to control stopping and starting of each of a plurality of sequential cutting cycles on the piece of material, a machine load parameter via detection of at least one of the cutting mechanism and the prime mover;
triggering, via the controller, stopping of a first cutting cycle of the plurality of sequential cutting cycles in response to the sensor signaling to the controller that a stored first stop threshold value is attained;
continuing monitoring, with the controller, the machine load parameter sensor signal as machine load increases to a maximum load momentarily after reaching the first stop threshold, the controller determining and adopting a second stop threshold value based on the value of the machine load parameter at the time of maximum load following attainment of the first stop threshold, and further based on a stored correction factor; and
triggering, via the controller, stopping a second cutting cycle of the plurality of sequential cutting cycles following the first cutting cycle in response to the sensor signaling to the controller that the second stop threshold value is attained.