Patent ID: 8805553

Claim:
A method for controlling an output of a computerized manufacturing process, the method comprising: storing a product target parameter (TW) for a unit process in a computer memory of a computer system associated with manufacturing process equipment; storing control limit values (CL) in the computer memory for a product delivery statistic (Ra) of the product target parameter (TW); storing a unit product over-delivery target parameter (OT); monitoring a unit product delivery parameter (LW) for the unit process and continually storing values in the computer memory for the product delivery parameter and a sequence number of unit products produced; calculating a unit product over-delivery parameter (PO) by determining the difference between the unit product delivery parameter (LW) and the product target parameter (TW); determining a cumulative over-delivery amount (BO) for a number of previously produced unit products in a processor of the computer system up to a current sequence number; determining a net difference between the unit product over-delivery target parameter (OT) and the cumulative over-delivery amount (BO) in the processor of the computer system; providing a predetermined modifier (CLAM) that represents a fractional amount of the unit product over-delivery target parameter (OT) and adjusting the net difference by the predetermined modifier to obtain a control limit adjustment (CLA); and adjusting the control limit values (CL) by the control limit adjustment (CLA) to obtain adjusted control limits and processing additional unit products through the unit process using the adjusted control limits.