Patents by Inventor Jonathan Borg

Jonathan Borg 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).

  • Patent number: 9273625
    Abstract: The present invention relates to a method and an apparatus for controlling a high-pressure fuel supply pump configured to supply pressurized fuel to an internal combustion engine, with a solenoid-actuated intake valve being configured to be biased into a first direction towards a first stop position of the intake valve by means of a biasing force and being configured to be displaced against the biasing force into a second direction opposite to the first direction towards a second stop position of the intake valve by means of magnetic force and to be kept at the second stop position by means of magnetic force. The method includes applying control current to the solenoid-actuated intake valve for displacing the intake valve into the second direction to the second stop position and for keeping the intake valve at the second stop position during a first time period by means of magnetic force.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: March 1, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Jonathan Borg, Masanori Watanabe, Ulf Dettmering, Kenichiro Tokuo
  • Patent number: 8794936
    Abstract: A high-pressure fuel supply pump includes a compression chamber, a plunger reciprocating in the compression chamber for pressurizing fuel in the compression chamber, a discharge valve for discharging pressurized fuel from the compression chamber to a high-pressure fuel passage of a high-pressure fuel supply system for supplying high-pressure fuel to an internal combustion engine, and a first solenoid actuated valve for connecting and disconnecting a first low-pressure fuel passage and the compression chamber. The first solenoid actuated valve is biased by a first biasing member in a closing direction of the first solenoid actuated valve, and is opened or kept open against the biasing force of the first biasing member, when the first solenoid actuated valve is energized. The high pressure fuel supply pump further includes a second solenoid actuated valve for connecting and disconnecting a second low-pressure fuel passage and the compression chamber.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: August 5, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Kenichiro Tokuo, Jonathan Borg
  • Patent number: 8700379
    Abstract: A method and apparatus for developing microcomputer-based systems. A controller model having at least one parameter is simulated and, similarly, a plant model having at least one parameter and controlled by the controller model is simulated. A user interface then has access to the parameters of the controller model and plant model and optionally suspends the execution of the controller model and plant model in response to a trigger event. The user interface determines the status of the controller model parameters and/or plant model parameters at the time of the trigger without altering the controller model parameters or plant model parameters or the program code of the controller model.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: April 15, 2014
    Assignee: Hitachi, Ltd
    Inventors: Makoto Ishikawa, Shigeru Oho, George Saikalis, Donald J. McCune, Jonathan Borg
  • Publication number: 20120118271
    Abstract: The present invention relates to a method and an apparatus for controlling a high-pressure fuel supply pump configured to supply pressurized fuel to an internal combustion engine, with a solenoid-actuated intake valve being configured to be biased into a first direction towards a first stop position of the intake valve by means of a biasing force and being configured to be displaced against the biasing force into a second direction opposite to the first direction towards a second stop position of the intake valve by means of magnetic force and to be kept at the second stop position by means of magnetic force. The method includes applying control current to the solenoid-actuated intake valve for displacing the intake valve into the second direction to the second stop position and for keeping the intake valve at the second stop position during a first time period by means of magnetic force.
    Type: Application
    Filed: November 10, 2011
    Publication date: May 17, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Jonathan BORG, Masanori Watanabe, Ulf Dettmering, Kenichiro Tokuo
  • Publication number: 20120000445
    Abstract: The present invention relates to a control apparatus 700 for controlling a high-pressure fuel supply pump 100, a computer program product comprising computer program code means configured to adapt a control apparatus 700 for controlling a high-pressure fuel supply pump 100, and a method for controlling a high-pressure fuel supply pump 100 configured to supply pressurized fuel to an internal combustion engine. The high-pressure fuel supply pump 100 comprises a normally-closed type solenoid actuated intake valve 110 configured to be opened or kept open by magnetic force. A control current IC of the solenoid actuated intake valve 110 is controlled for opening the solenoid actuated intake valve 110 by applying a control voltage VC to the solenoid actuated intake valve 110. Controlling a control current IC of the solenoid actuated intake valve 110 comprises increasing the control current IC to a first control current value IC1 for energizing the solenoid actuated intake valve 110.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 5, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Jonathan BORG, Masanori Watanabe, Kenichiro Tokuo
  • Publication number: 20110097228
    Abstract: The present invention relates to a high-pressure fuel supply pump comprising a compression chamber, a plunger reciprocating in the compression chamber for pressurizing fuel in the compression chamber, a discharge valve for discharging pressurized fuel from the compression chamber to a high-pressure fuel passage of a high-pressure fuel supply system for supplying high-pressure fuel to an internal combustion engine, and a first solenoid actuated valve for connecting and disconnecting a first low-pressure fuel passage and the compression chamber, wherein the first solenoid actuated valve is biased by a first biasing member in a closing direction of the first solenoid actuated valve, and the first solenoid actuated valve is opened or kept open against the biasing force of the first biasing member, when the first solenoid actuated valve is energized.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 28, 2011
    Applicant: Hitachi, Ltd.
    Inventors: Kenichiro TOKUO, Jonathan BORG
  • Publication number: 20100286970
    Abstract: A method and apparatus for developing microcomputer-based systems. A controller model having at least one parameter is simulated and, similarly, a plant model having at least one parameter and controlled by the controller model is simulated. A user interface then has access to the parameters of the controller model and plant model and optionally suspends the execution of the controller model and plant model in response to a trigger event. The user interface determines the status of the controller model parameters and/or plant model parameters at the time of the trigger without altering the controller model parameters or plant model parameters or the program code of the controller model.
    Type: Application
    Filed: July 21, 2010
    Publication date: November 11, 2010
    Inventors: Makoto Ishikawa, Shigeru Oho, George Saikalis, Donald J. McCune, Jonathan Borg
  • Patent number: 7778806
    Abstract: A method and apparatus for developing microcomputer-based systems. A controller model having at least one parameter is simulated and, similarly, a plant model having at least one parameter and controlled by the controller model is simulated. A user interface then has access to the parameters of the controller model and plant model and optionally suspends the execution of the controller model and plant model in response to a trigger event. The user interface determines the status of the controller model parameters and/or plant model parameters at the time of the trigger without altering the controller model parameters or plant model parameters or the program code of the controller model.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: August 17, 2010
    Assignee: Hitachi, Ltd
    Inventors: Makoto Ishikawa, Shigeru Oho, George Saikalis, Donald J. McCune, Jonathan Borg
  • Patent number: 7552720
    Abstract: A fuel pump for a direct injection internal combustion engine having a body with a valve seat. The valve includes a valve head and the valve is movably mounted to the body between an open position and a closed position. In its open position, the valve head is spaced from the valve seat white in its closed position, the valve head abuts against the valve seat and closes the valve. An electric coil upon energization moves the valve to an open position and, conversely, upon deenergization allows the valve to move to a closed position. A control circuit controls the energization of the coil to reduce the pump noise during operation of the engine, especially at low speeds.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: June 30, 2009
    Assignee: Hitachi, Ltd
    Inventors: Jonathan Borg, Harsha Badarinarayan, Donald J. McCune, Atsushi Watanabe, Takuya Shiraishi, George Saikalis
  • Publication number: 20090126688
    Abstract: A fuel pump for a direct injection internal combustion engine having a body with a valve seat. The valve includes a valve head and the valve is movably mounted to the body between an open position and a closed position. In its open position, the valve head is spaced from the valve seat white in its closed position, the valve head abuts against the valve seat and closes the valve. An electric coil upon energization moves the valve to an open position and, conversely, upon deenergization allows the valve to move to a closed position. A control circuit controls the energization of the coil to reduce the pump noise during operation of the engine, especially at low speeds.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 21, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Jonathan Borg, Harsha Badarinarayan, Donald J. McCune, Atsushi Watanabe, Takuya Shiraishi, George Saikalis
  • Patent number: 7406946
    Abstract: A method and apparatus for attenuating fuel pump noise in a direct injection internal combustion engine. In one proposal, the direct injection fuel nozzle is suspended from a fuel rail in a fashion that avoids direct metal-to-metal contact between the injector and the engine block. The direct injection nozzle may also be connected to the fuel rail by a pair of spaced-apart seals which equalize the longitudinal pressure on the nozzle during operation. Enlarged diameter fuel reservoirs and/or a restricted orifice may be provided fluidly in series between the fuel pump and the direct injection nozzle in order to attenuate noise resulting from fuel pump pulsation.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: August 5, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Watanabe, Harsha Badarinarayan, Jonathan Borg, Donald J. McCune, Takuya Shiraishi, Atsushi Hohkita, Masahiro Soma, Hiroaki Saeki
  • Publication number: 20070233286
    Abstract: A method and apparatus for developing microcomputer-based systems. A controller model having at least one parameter is simulated and, similarly, a plant model having at least one parameter and controlled by the controller model is simulated. A user interface then has access to the parameters of the controller model and plant model and optionally suspends the execution of the controller model and plant model in response to a trigger event. The user interface determines the status of the controller model parameters and/or plant model parameters at the time of the trigger without altering the controller model parameters or plant model parameters or the program code of the controller model.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 4, 2007
    Inventors: Makoto Ishikawa, Shigeru Oho, George Saikalis, Donald McCune, Jonathan Borg
  • Patent number: 7197743
    Abstract: A method for generating computer software for a microprocessor in an embedded system in which the system includes an input/output system (BIOS), at least one input/output channel, an application layer having at least one code module which processes input/output signals from its associated channel in the BIOS, and an operating system which schedules execution of events in the application layer. A graphical user interface (GUI) is used to select channels of the BIOS by functionality, program code modules in the application layer to process the input/output signals from the BIOS and to schedule event processing in the operating system.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: March 27, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Jonathan Borg, George Saikalis, Donald James McCune, Liang Shao, Shigeru Oho
  • Patent number: 7017556
    Abstract: An engine startup fuel control system for use with a four-cycle internal combustion engine of the type having a plurality of combustion chambers, an air intake passageway, a source of fuel, a crankshaft and a camshaft which operates the engine cylinder valves. A multipoint fuel injector is associated with each combustion chamber and each multipoint fuel injector has an inlet connected to the fuel source and an outlet connected to the air intake passageway adjacent its associated combustion chamber. A crankshaft position sensor generates an output signal representative of the angular position of the crankshaft while, similarly, a camshaft position sensor generates an output signal representative of the angular position of the camshaft. An engine control unit is programmed to determine the synchronization of the engine in response to the output signals from the crankshaft position sensor and camshaft position sensor.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: March 28, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Jonathan Borg, Shigeru Oho, Frank Warren Hunt, Ayumu Miyajima
  • Patent number: 7007667
    Abstract: An engine startup fuel control system for use with an internal combustion engine of the type having a plurality of combustion chambers, an air intake passage fluidly connected to each combustion chamber and a source of fuel. The system includes a multipoint fuel injector associated with each combustion chamber in which the multipoint fuel injector has an inlet connected to the fuel source and an outlet fluidly connected to the intake air passageway adjacent its associated combustion chamber. A cold start fuel injector also has an inlet connected to the fuel source and an outlet connected through a cold start passageway with each combustion chamber. A processing circuit selectively activates the multipoint fuel injectors as well as the cold start fuel injector.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: March 7, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Jonathan Borg, Shigeru Oho, Frank Warren Hunt, Ayumu Miyajima
  • Patent number: 6918383
    Abstract: A cold start fuel control system is disclosed for use with an internal combustion engine having a plurality of combustion chambers, a source of fuel and an intake manifold having an inlet and an outlet port connected to each combustion chamber. The system includes a cold start fuel injector assembly having an inlet and an outlet to provide a vapor fuel charge during a cold start engine condition. The cold start fuel injector assembly inlet is fluidly connected to the source of fuel. An auxiliary intake manifold has an internal chamber and the cold start fuel injector assembly outlet is fluidly connected to the auxiliary intake manifold chamber. The auxiliary intake manifold chamber is then fluidly connected through a control orifice to each of the combustion chambers at a position downstream from the inlet of the primary intake manifold.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: July 19, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Frank Warren Hunt, Ayumu Miyajima, George Saikalis, Jonathan Borg, Shigeru Oho
  • Publication number: 20050016503
    Abstract: An engine startup fuel control system for use with a four-cycle internal combustion engine of the type having a plurality of combustion chambers, an air intake passageway, a source of fuel, a crankshaft and a camshaft which operates the engine cylinder valves. A multipoint fuel injector is associated with each combustion chamber and each multipoint fuel injector has an inlet connected to the fuel source and an outlet connected to the air intake passageway adjacent its associated combustion chamber. A crankshaft position sensor generates an output signal representative of the angular position of the crankshaft while, similarly, a camshaft position sensor generates an output signal representative of the angular position of the camshaft. An engine control unit is programmed to determine the synchronization of the engine in response to the output signals from the crankshaft position sensor and camshaft position sensor.
    Type: Application
    Filed: January 13, 2004
    Publication date: January 27, 2005
    Inventors: Jonathan Borg, Shigeru Oho, Frank Hunt, Ayumu Miyajima
  • Publication number: 20050016500
    Abstract: An engine startup fuel control system for use with an internal combustion engine of the type having a plurality of combustion chambers, an air intake passage fluidly connected to each combustion chamber and a source of fuel. The system includes a multipoint fuel injector associated with each combustion chamber in which the multipoint fuel injector has an inlet connected to the fuel source and an outlet fluidly connected to the intake air passageway adjacent its associated combustion chamber. A cold start fuel injector also has an inlet connected to the fuel source and an outlet connected through a cold start passageway with each combustion chamber. A processing circuit selectively activates the multipoint fuel injectors as well as the cold start fuel injector.
    Type: Application
    Filed: July 22, 2003
    Publication date: January 27, 2005
    Applicant: Hitachi, Ltd.
    Inventors: Jonathan Borg, Shigeru Oho, Frank Hunt, Ayumu Miyajima
  • Publication number: 20040177345
    Abstract: A method for generating computer software for a microprocessor in an embedded system in which the system includes an input/output system (BIOS), at least one input/output channel, an application layer having at least one code module which processes input/output signals from its associated channel in the BIOS, and an operating system which schedules execution of events in the application layer. The method includes the steps of using a graphical user interface (GUI) to select channels of the BIOS by functionality. The GUI is then used to select one or more program code modules in the application layer to process the input/output signals from the BIOS and then associates the selected code modules with at least one channel in the BIOS. The GUI is then used to schedule event processing in the operating system.
    Type: Application
    Filed: March 4, 2003
    Publication date: September 9, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Jonathan Borg, George Saikalis, Donald James McCune, Liang Shao, Shigeru Oho
  • Patent number: RE43864
    Abstract: A method and apparatus for attenuating fuel pump noise in a direct injection internal combustion engine. In one proposal, the direct injection fuel nozzle is suspended from a fuel rail in a fashion that avoids direct metal-to-metal contact between the injector and the engine block. The direct injection nozzle may also be connected to the fuel rail by a pair of spaced-apart seals which equalize the longitudinal pressure on the nozzle during operation. Enlarged diameter fuel reservoirs and/or a restricted orifice may be provided fluidly in series between the fuel pump and the direct injection nozzle in order to attenuate noise resulting from fuel pump pulsation.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: December 18, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Watanabe, Harsha Badarinarayan, Jonathan Borg, Donald J. Mccune, Takuya Shiraishi, Atsushi Hohkita, Masahiro Soma, Hiroaki Saeki