Patents by Inventor Reddy P.S. SANKARA

Reddy P.S. SANKARA 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).

  • Systems and methods for controlling EGR flow rate
    Patent number: 10526986
    Abstract: According to one aspect of the present disclosure, a method of controlling an exhaust gas recirculation (EGR) system of an engine system includes determining a first EGR command according to a first method during a steady state engine condition, determining a second EGR command according to a second method during a transient engine condition, wherein the first method is based at least in part on values from a NOx sensor, and the second method is not based on values from a NOx sensor. The method further includes adjusting an EGR valve of the EGR system based on the first EGR command during the steady state engine condition, and adjusting the EGR valve based on the second EGR command during the transient engine condition.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: January 7, 2020
    Assignee: Progress Rail Locomotive Inc.
    Inventors: Reddy P. S. Sankara, Steven D. Johnson, Liangtao Zhu, Michael B. Goetzke
  • SYSTEMS AND METHODS FOR CONTROLLING EGR FLOW RATE
    Publication number: 20190368436
    Abstract: According to one aspect of the present disclosure, a method of controlling an exhaust gas recirculation (EGR) system of an engine system includes determining a first EGR command according to a first method during a steady state engine condition, determining a second EGR command according to a second method during a transient engine condition, wherein the first method is based at least in part on values from a NOx sensor, and the second method is not based on values from a NOx sensor. The method further includes adjusting an EGR valve of the EGR system based on the first EGR command during the steady state engine condition, and adjusting the EGR valve based on the second EGR command during the transient engine condition.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 5, 2019
    Applicant: Progress Rail Locomotive Inc.
    Inventors: Reddy P.S. SANKARA, Steven D. JOHNSON, Liangtao ZHU, Michael B. GOETZKE