Patents by Inventor Sivaprasad Akasam

Sivaprasad Akasam 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).

  • Publication number: 20050134284
    Abstract: A method is provided for testing multiple elements of a work machine, including a control system, a component, a sub-component that is influenced by operations of the component, and a sensor that monitors a characteristic of the sub-component. In one embodiment, the method is performed by the control system and includes sending a command to the component to adjust a first parameter associated with an operation of the component. Also, the method includes detecting a sensor signal from the sensor reflecting a second parameter associated with a characteristic of the sub-component and determining whether the second parameter is acceptable based on the command. The control system may diagnose at least one of the elements of the work machine when the second parameter of the sub-component is not acceptable.
    Type: Application
    Filed: December 22, 2003
    Publication date: June 23, 2005
    Inventors: Brian Hoff, Kris Johnson, Sivaprasad Akasam, Thomas Baker
  • Publication number: 20050134367
    Abstract: A method of ground level compensation includes measuring a voltage of at least one signal with respect to a primary ground potential and measuring, with respect to the primary ground potential, a voltage level associated with a secondary ground potential. A difference between the voltage level associated with the secondary ground potential and an expected value is calculated. The measured voltage of the at least one signal is adjusted by an amount corresponding to the calculated difference.
    Type: Application
    Filed: December 19, 2003
    Publication date: June 23, 2005
    Inventors: Kris Johnson, Sivaprasad Akasam
  • Publication number: 20050136723
    Abstract: An electrical connector includes a female component having one or more receptacles, a first test receptacle, and a second test receptacle. The electrical connector also includes a male component having one or more terminals configured to engage the one or more receptacles, a first test pin configured to engage the first test receptacle, and a second test pin configured to engage the second test receptacle. The first test receptacle is electrically connected to the second test receptacle, and at least one of the first test pin and the second test pin is shorter in length than the one or more terminals.
    Type: Application
    Filed: December 22, 2003
    Publication date: June 23, 2005
    Inventors: Jennifer Dilliner, Thomas Baker, Sivaprasad Akasam, Brian Hoff
  • Patent number: 6874695
    Abstract: There are situations in which an operator remains in an operator station of a work machine when an engine of the work machine is inactive. The present invention includes a control system for, and a method of, heating the operator station when the engine is inactive. A heating system of the work machine includes an electrically-powered coolant pump, a power source, and at least one piece of warmed machinery. An operator heat controller is moveable between a first and a second position, and is operable to connect the electrically-powered coolant pump to the power source when the engine is inactive and the operator heat controller is in the first position. Thus, by deactivating the engine and then moving the operator heat controller to the first position, the operator may supply electrical energy to the electrically-powered coolant pump, which is operably coupled to heat the operator station.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: April 5, 2005
    Assignee: Caterpillar Inc
    Inventors: Thomas M. Baker, Brian D. Hoff, Sivaprasad Akasam
  • Publication number: 20040189091
    Abstract: An electrical system for a vehicle includes a first power source generating a first voltage level, the first power source being in electrical communication with a first bus. A second power source generates a second voltage level greater than the first voltage level, the second power source being in electrical communication with a second bus. A starter generator may be configured to provide power to at least one of the first bus and the second bus, and at least one additional power source may be configured to provide power to at least one of the first bus and the second bus. The electrical system also includes at least one power consumer in electrical communication with the first bus and at least one power consumer in electrical communication with the second bus.
    Type: Application
    Filed: December 22, 2003
    Publication date: September 30, 2004
    Applicant: Caterpillar Inc.
    Inventors: Marcelo C. Algrain, Kris W. Johnson, Sivaprasad Akasam, Brian D. Hoff
  • Publication number: 20040187505
    Abstract: A power system includes an engine having a first coolant circuit and a torque converter operatively connected to the engine and in fluid communication with the first coolant circuit. The power system also includes at least one auxiliary power unit having a second coolant circuit. The first coolant circuit is in fluid communication with the second coolant circuit.
    Type: Application
    Filed: December 24, 2003
    Publication date: September 30, 2004
    Applicant: Caterpillar, Inc.
    Inventors: Brian D. Hoff, Sivaprasad Akasam
  • Publication number: 20040189098
    Abstract: A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in electrical communication with the electrical system and calculating a threshold power value for the enabled power sources. A total power load placed on the electrical system by one or more power consumers may be measured. If the total power load exceeds the threshold power value, then a determination may be made as to whether one or more additional power sources is available from among the plurality of power sources. At least one of the one or more additional power sources may be enabled, if available.
    Type: Application
    Filed: December 22, 2003
    Publication date: September 30, 2004
    Applicant: Caterpillar Inc.
    Inventors: Marcelo C. Algrain, Kris W. Johnson, Sivaprasad Akasam, Brian D. Hoff
  • Publication number: 20040187834
    Abstract: A power system includes an engine having a first lubrication circuit and at least one auxiliary power unit having a second lubrication circuit. The first lubrication circuit is in fluid communication with the second lubrication circuit.
    Type: Application
    Filed: December 18, 2003
    Publication date: September 30, 2004
    Applicant: Caterpillar, Inc.
    Inventors: Brian D. Hoff, Sivaprasad Akasam, Marcelo C. Algrain, Kris W. Johnson, William H. Lane
  • Publication number: 20040187835
    Abstract: A method of controlling the delivery of fluid to an engine includes receiving a fuel flow rate signal. An electric pump is arranged to deliver fluid to the engine. The speed of the electric pump is controlled based on the fuel flow rate signal.
    Type: Application
    Filed: December 23, 2003
    Publication date: September 30, 2004
    Applicant: Caterpillar Inc.
    Inventors: Brian D. Hoff, Kris William Johnson, Marcelo C. Algrain, Sivaprasad Akasam
  • Publication number: 20040104280
    Abstract: There are situations in which an operator remains in an operator station of a work machine when an engine of the work machine is inactive. The present invention includes a control system for, and a method of, heating the operator station when the engine is inactive. A heating system of the work machine includes an electrically-powered coolant pump, a power source, and at least one piece of warmed machinery. An operator heat controller is moveable between a first and a second position, and is operable to connect the electrically-powered coolant pump to the power source when the engine is inactive and the operator heat controller is in the first position. Thus, by deactivating the engine and then moving the operator heat controller to the first position, the operator may supply electrical energy to the electrically-powered coolant pump, which is operably coupled to heat the operator station.
    Type: Application
    Filed: December 3, 2002
    Publication date: June 3, 2004
    Inventors: Thomas M. Baker, Brian D. Hoff, Sivaprasad Akasam