Patents by Inventor Gopal Krishna Chamarthi

Gopal Krishna Chamarthi 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).

  • Method and system for limiting output of a boosted engine
    Patent number: 9670852
    Abstract: A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: June 6, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Brien Lloyd Fulton, Gopal Krishna Chamarthi, Dean Pennala, David Ives, David Robert Nader, Paul Martin Niessen, Jason Ronald Smith
  • Method and system for engine unburned hydrocarbon control
    Patent number: 9534553
    Abstract: Methods and systems are provided for detecting hydrocarbon ingestion into an engine based on the simultaneous monitoring of cylinder imbalance and an elevated exhaust exotherm. Crankshaft acceleration data is monitored during steady-state and transient engine conditions while exhaust temperatures are estimated during non-regeneration conditions. Engine speed and load is limited to reduce further hydrocarbon ingestion.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: January 3, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopal Krishna Chamarthi, John G. Fraser, Arnold Kromberg, Anil Shah, Thomas C. Erickson, Brien Lloyd Fulton, Scott Eeley
  • METHOD AND SYSTEM FOR ENGINE UNBURNED HYDROCARBON CONTROL
    Publication number: 20150240734
    Abstract: Methods and systems are provided for detecting hydrocarbon ingestion into an engine based on the simultaneous monitoring of cylinder imbalance and an elevated exhaust exotherm. Crankshaft acceleration data is monitored during steady-state and transient engine conditions while exhaust temperatures are estimated during non-regeneration conditions. Engine speed and load is limited to reduce further hydrocarbon ingestion.
    Type: Application
    Filed: May 13, 2015
    Publication date: August 27, 2015
    Inventors: Gopal Krishna Chamarthi, John G. Fraser, Arnold Kromberg, Anil Shah, Thomas C. Erickson, Brien Lloyd Fulton, Scott Eeley
  • Method and system for engine unburned hydrocarbon control
    Patent number: 9074543
    Abstract: Methods and systems are provided for detecting hydrocarbon ingestion into an engine based on the simultaneous monitoring of cylinder imbalance and an elevated exhaust exotherm. Crankshaft acceleration data is monitored during steady-state and transient engine conditions while exhaust temperatures are estimated during non-regeneration conditions. Engine speed and load is limited to reduce further hydrocarbon ingestion.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: July 7, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopal Krishna Chamarthi, John G. Fraser, Arnold Kromberg, Anil Shah, Thomas C. Erickson, Brien Lloyd Fulton, Scott Eeley
  • METHOD AND SYSTEM FOR LIMITING OUTPUT OF A BOOSTED ENGINE
    Publication number: 20150121865
    Abstract: A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.
    Type: Application
    Filed: January 13, 2015
    Publication date: May 7, 2015
    Inventors: Brien Lloyd Fulton, Gopal Krishna Chamarthi, Dean Pennala, David Ives, David Robert Nader, Paul Martin Niessen, Jason Ronald Smith
  • Method and system for limiting output of a boosted engine
    Patent number: 8931272
    Abstract: A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: January 13, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Brien Lloyd Fulton, Gopal Krishna Chamarthi, Dean Pennala, David Ives, David Robert Nader, Paul Martin Niessen, Jason Ronald Smith
  • METHOD AND SYSTEM FOR ENGINE UNBURNED HYDROCARBON CONTROL
    Publication number: 20140046576
    Abstract: Methods and systems are provided for detecting hydrocarbon ingestion into an engine based on the simultaneous monitoring of cylinder imbalance and an elevated exhaust exotherm. Crankshaft acceleration data is monitored during steady-state and transient engine conditions while exhaust temperatures are estimated during non-regeneration conditions. Engine speed and load is limited to reduce further hydrocarbon ingestion.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Gopal Krishna Chamarthi, John G. Fraser, Arnold Kromberg, Anil Shah, Thomas C. Erickson, Brien Lloyd Fulton, Scott Eeley
  • Method and system for limiting output of a boosted engine
    Patent number: 8596064
    Abstract: A method for operating a turbocharged engine is disclosed. In one example, an engine operation is adjusted in response to a turbocharger expansion ratio. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: December 3, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Brien Lloyd Fulton, Gopal Krishna Chamarthi, Dean Pennala, David Curtis Ives, David Robert Nader, Paul Martin Niessen, Jason Ronald Smith
  • METHOD AND SYSTEM FOR LIMITING OUTPUT OF A BOOSTED ENGINE
    Publication number: 20130227945
    Abstract: A method for operating a turbocharged engine is disclosed. In one example, during a first condition an engine operation is adjusted in response to a turbocharger expansion ratio exceeding a first limit and during a second condition an engine operation is adjusted in response to the turbocharger expansion ratio exceeding a second limit that differs from the first limit. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.
    Type: Application
    Filed: April 11, 2013
    Publication date: September 5, 2013
    Applicant: Ford Global Technologies, LLC
    Inventors: Brien Lloyd Fulton, Gopal Krishna Chamarthi, Dean Pennala, David Ives, David Robert Nader, Paul Martin Niessen, Jason Ronald Smith
  • Method and System for Limiting Output of a Boosted Engine
    Publication number: 20120102944
    Abstract: A method for operating a turbocharged engine is disclosed. In one example, an engine operation is adjusted in response to a turbocharger expansion ratio. Degradation of the engine may be reduced under some engine operating conditions by adjusting engine operation in response to the turbocharger expansion ratio.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Applicant: Ford Global Technologies, LLC
    Inventors: Brien Lloyd Fulton, Gopal Krishna Chamarthi, Dean Pennala, David Curtis Ives, David Robert Nader, Paul Martin Niessen, Jason Ronald Smith
  • Fuel system control
    Patent number: 8166943
    Abstract: Methods and systems are provided for operating a fuel system in an engine, the fuel system including a supply pump for delivering fuel to the fuel system and pressurizing fuel received from a feed pump, a fuel tank, a fuel filter for filtering fuel, a fuel rail, and a fuel injector. One example method comprises, during an engine cold-start, operating the supply pump, and adjusting a supply pump operation mode between at least a pressure-controlled mode and a volume-controlled mode based on a fuel temperature and pressure.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: May 1, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopal Krishna Chamarthi, Brien Lloyd Fulton, Christopher Oberski, Peter Mitchell Lyon
  • FUEL SYSTEM CONTROL
    Publication number: 20110023833
    Abstract: Methods and systems are provided for operating a fuel system in an engine, the fuel system including a supply pump for delivering fuel to the fuel system and pressurizing fuel received from a feed pump, a fuel tank, a fuel filter for filtering fuel, a fuel rail, and a fuel injector. One example method comprises, during an engine cold-start, operating the supply pump, and adjusting a supply pump operation mode between at least a pressure-controlled mode and a volume-controlled mode based on a fuel temperature and pressure.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 3, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Gopal Krishna Chamarthi, Brien Lloyd Fulton, Christopher Oberski, Peter Mitchell Lyon