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).
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Patent number: 9273625Abstract: 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: GrantFiled: November 10, 2011Date of Patent: March 1, 2016Assignee: Hitachi, Ltd.Inventors: Jonathan Borg, Masanori Watanabe, Ulf Dettmering, Kenichiro Tokuo
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Patent number: 8794936Abstract: 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: GrantFiled: October 14, 2010Date of Patent: August 5, 2014Assignee: Hitachi, Ltd.Inventors: Kenichiro Tokuo, Jonathan Borg
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Patent number: 8700379Abstract: 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: GrantFiled: July 21, 2010Date of Patent: April 15, 2014Assignee: Hitachi, LtdInventors: Makoto Ishikawa, Shigeru Oho, George Saikalis, Donald J. McCune, Jonathan Borg
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Publication number: 20120118271Abstract: 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: ApplicationFiled: November 10, 2011Publication date: May 17, 2012Applicant: Hitachi, Ltd.Inventors: Jonathan BORG, Masanori Watanabe, Ulf Dettmering, Kenichiro Tokuo
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Publication number: 20120000445Abstract: 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: ApplicationFiled: June 29, 2011Publication date: January 5, 2012Applicant: Hitachi, Ltd.Inventors: Jonathan BORG, Masanori Watanabe, Kenichiro Tokuo
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Publication number: 20110097228Abstract: 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: ApplicationFiled: October 14, 2010Publication date: April 28, 2011Applicant: Hitachi, Ltd.Inventors: Kenichiro TOKUO, Jonathan BORG
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Publication number: 20100286970Abstract: 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: ApplicationFiled: July 21, 2010Publication date: November 11, 2010Inventors: Makoto Ishikawa, Shigeru Oho, George Saikalis, Donald J. McCune, Jonathan Borg
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Patent number: 7778806Abstract: 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: GrantFiled: March 29, 2006Date of Patent: August 17, 2010Assignee: Hitachi, LtdInventors: Makoto Ishikawa, Shigeru Oho, George Saikalis, Donald J. McCune, Jonathan Borg
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Patent number: 7552720Abstract: 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: GrantFiled: November 20, 2007Date of Patent: June 30, 2009Assignee: Hitachi, LtdInventors: Jonathan Borg, Harsha Badarinarayan, Donald J. McCune, Atsushi Watanabe, Takuya Shiraishi, George Saikalis
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Publication number: 20090126688Abstract: 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: ApplicationFiled: November 20, 2007Publication date: May 21, 2009Applicant: Hitachi, Ltd.Inventors: Jonathan Borg, Harsha Badarinarayan, Donald J. McCune, Atsushi Watanabe, Takuya Shiraishi, George Saikalis
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Patent number: 7406946Abstract: 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: GrantFiled: April 2, 2007Date of Patent: August 5, 2008Assignee: Hitachi, Ltd.Inventors: Atsushi Watanabe, Harsha Badarinarayan, Jonathan Borg, Donald J. McCune, Takuya Shiraishi, Atsushi Hohkita, Masahiro Soma, Hiroaki Saeki
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Publication number: 20070233286Abstract: 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: ApplicationFiled: March 29, 2006Publication date: October 4, 2007Inventors: Makoto Ishikawa, Shigeru Oho, George Saikalis, Donald McCune, Jonathan Borg
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Patent number: 7197743Abstract: 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: GrantFiled: March 4, 2003Date of Patent: March 27, 2007Assignee: Hitachi, Ltd.Inventors: Jonathan Borg, George Saikalis, Donald James McCune, Liang Shao, Shigeru Oho
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Patent number: 7017556Abstract: 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: GrantFiled: January 13, 2004Date of Patent: March 28, 2006Assignee: Hitachi, Ltd.Inventors: Jonathan Borg, Shigeru Oho, Frank Warren Hunt, Ayumu Miyajima
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Patent number: 7007667Abstract: 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: GrantFiled: July 22, 2003Date of Patent: March 7, 2006Assignee: Hitachi, Ltd.Inventors: Jonathan Borg, Shigeru Oho, Frank Warren Hunt, Ayumu Miyajima
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Patent number: 6918383Abstract: 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: GrantFiled: July 8, 2003Date of Patent: July 19, 2005Assignee: Hitachi, Ltd.Inventors: Frank Warren Hunt, Ayumu Miyajima, George Saikalis, Jonathan Borg, Shigeru Oho
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Publication number: 20050016503Abstract: 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: ApplicationFiled: January 13, 2004Publication date: January 27, 2005Inventors: Jonathan Borg, Shigeru Oho, Frank Hunt, Ayumu Miyajima
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Publication number: 20050016500Abstract: 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: ApplicationFiled: July 22, 2003Publication date: January 27, 2005Applicant: Hitachi, Ltd.Inventors: Jonathan Borg, Shigeru Oho, Frank Hunt, Ayumu Miyajima
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Patent number: RE43864Abstract: 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: GrantFiled: August 4, 2010Date of Patent: December 18, 2012Assignee: Hitachi, Ltd.Inventors: Atsushi Watanabe, Harsha Badarinarayan, Jonathan Borg, Donald J. Mccune, Takuya Shiraishi, Atsushi Hohkita, Masahiro Soma, Hiroaki Saeki
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Patent number: D957634Type: GrantFiled: May 26, 2020Date of Patent: July 12, 2022Assignee: UNIVERSITY OF MALTAInventors: Christian Camenzuli, Josef Attard, John Paul Borg, Jonathan Borg, Pierre Schembri Wismayer, Jean Calleja Aguis