Patents by Inventor John A. Escarcega

John A. Escarcega has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus and method for predicting windup and improving process control in an industrial process control system
    Patent number: 10203667
    Abstract: A method includes identifying one of multiple regions in a range where an output (OP) value used to implement a manipulated variable is located. The manipulated variable is associated with an industrial process, and the OP value represents an output of a downstream controller. The method also includes calculating an achievable manipulated variable (MV) limit for the manipulated variable based on the region in which the OP value is located. For example, when the OP value is located in one region, the achievable MV limit could match a user-specified limit or be based on a gain between the OP value and a value of a process variable. When the OP value is located in another region, the achievable MV limit could track the value of the process variable with a gap.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: February 12, 2019
    Assignee: Honeywell International Inc.
    Inventors: John A. Escarcega, Charles Q. Zhan, Joseph Z. Lu
  • APPARATUS AND METHOD FOR PREDICTING WINDUP AND IMPROVING PROCESS CONTROL IN AN INDUSTRIAL PROCESS CONTROL SYSTEM
    Publication number: 20130060353
    Abstract: A method includes identifying one of multiple regions in a range where an output (OP) value used to implement a manipulated variable is located. The manipulated variable is associated with an industrial process, and the OP value represents an output of a downstream controller. The method also includes calculating an achievable manipulated variable (MV) limit for the manipulated variable based on the region in which the OP value is located. For example, when the OP value is located in one region, the achievable MV limit could match a user-specified limit or be based on a gain between the OP value and a value of a process variable. When the OP value is located in another region, the achievable MV limit could track the value of the process variable with a gap.
    Type: Application
    Filed: September 1, 2011
    Publication date: March 7, 2013
    Applicant: Honeywell International Inc.
    Inventors: John A. Escarcega, Charles Q. Zhen, Joseph Z. Lu