Patents by Inventor Chethana Bhasham

Chethana Bhasham 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).

  • HUMIDITY BASED MAF COMPENSATION
    Publication number: 20150096519
    Abstract: According to at least one aspect of the present technology, a method is provided for compensating the output of a mass air flow sensor in response to humidity level. The method includes determining an actual mass air flow value (MAF_ACT) using the mass air flow sensor. The method also includes determining an actual humidity value (HUM_ACT) of the air flow that is measured by the mass air flow sensor. The method further includes determining if the actual humidity value (HUM_ACT) is outside of a preselected operating range. If the actual humidity value (HUM_ACT) is outside of the preselected operating range, the method determines a humidity-compensated mass air flow value (MAF_HUM) as a function of the actual mass air flow value (MAF_ACT) and the actual humidity value (HUM_ACT).
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Rogelio Rodriguez, Chethana Bhasham, Ly V. Tran, Umang Khanna
  • EMG temp signal model based on EGRC out temp for EGR system anti-fouling protection
    Patent number: 8267069
    Abstract: An EGR control method to prevent condensation within the EGR system uses a temperature sensor signal from an EGR cooler exhaust gas outlet to model or estimate exhaust manifold gas temperature upstream of the cooler. If the estimated exhaust manifold gas temperature falls below a predetermined level, the engine control system closes or partially closes the EGR control valve to stop EGR flow through the cooler and the EGR valve.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: September 18, 2012
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: David M. Hsia, Rogelio Rodriguez, Chethana Bhasham
  • EMG Temp Signal Model Based On EGRC Out Temp For EGR System Anti-Fouling Protection
    Publication number: 20110048389
    Abstract: An EGR control method to prevent condensation within the EGR system uses a temperature sensor signal from an EGR cooler exhaust gas outlet to model or estimate exhaust manifold gas temperature upstream of the cooler. If the estimated exhaust manifold gas temperature falls below a predetermined level, the engine control system closes or partially closes the EGR control valve to stop EGR flow through the cooler and the EGR valve.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: INTERNATIONAL ENGINE INTELLECTUAL PROPERTY LLC
    Inventors: David M. Hsia, Rogelio Rodriguez, Chethana Bhasham