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Joseph Lyle Thomas: Method of detecting and compensating for injector variability with a direct injection system. Ford Global Technologies, Julia Voutyras, Alleman Hall McCoy Russell & Tuttle, May 18, 2010: US07717088 (17 worldwide citation)

A method for controlling fuel injection of a direct injection fuel system, the fuel system having a fuel pump, the method comprising: variably operating the fuel pump to maintain a fuel pressure at a selected pressure, temporarily increasing pump operation to increase pressure sufficiently above sai ...


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Joseph Lyle Thomas: Method of detecting and compensating for injector variability with a direct injection system. Ford Global Technologies, Julia Voutyras, Alleman Hall McCoy Russell & Tuttle, November 30, 2010: US07841319 (15 worldwide citation)

A method for controlling an injection of fuel to an engine is described. In one example, the different fuels are injected to an engine during different engine operating conditions. The method may improve engine starting and reduce engine emissions.


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Daniel Dusa, Joseph Lyle Thomas, Gopichandra Surnilla, Joseph Norman Ulrey, Ross Dykstra Pursifull: Addressing fuel pressure uncertainty during startup of a direct injection engine. Ford Global Technologies, Allan J Lippa, Alleman Hall McCoy Russell & Tuttle, November 16, 2010: US07832375 (13 worldwide citation)

An engine system and a method of starting an internal combustion engine of the engine system are described. In one embodiment, the method includes adjusting a fuel pressure within a fuel rail to exceed a pressure of a pressure relief valve. The method may be particularly useful during degradation of ...


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Gopichandra Surnilla, Daniel Dusa, Joseph Lyle Thomas, Joseph Norman Ulrey: High pressure fuel pump control for idle tick reduction. Ford Global Technologies, Allan J Lippa, Alleman Hall McCoy Russell & Tuttle, January 10, 2012: US08091530 (11 worldwide citation)

A method for controlling a mechanical solenoid valve of a high-pressure fuel pump to supply fuel to an engine is provided. In one example, current supplied to the mechanical solenoid valve is adjusted according to a pressure downstream of the fuel pump. The method can reduce current used to operate ...


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Gopichandra Surnilla, Daniel Dusa, Joseph Lyle Thomas, Joseph Norman Ulrey: High pressure fuel pump control for idle tick reduction. Ford Global Technologies, Julia Voutyras, Alleman Hall McCoy Russell & Tuttle, August 21, 2012: US08245693 (8 worldwide citation)

A method for controlling a mechanical solenoid valve of a high-pressure fuel pump to supply fuel to an engine is provided. In one example, current supplied to the mechanical solenoid valve is adjusted according to a pressure downstream of the fuel pump. The method can reduce current used to operate ...


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Joseph Lyle Thomas: System and method to compensate for variable fuel injector characterization in a direct injection system. Ford Global Technologies, Allan J Lippa, Alleman Hall McCoy Russell & Tuttle, February 15, 2011: US07886719 (5 worldwide citation)

A method for controlling fuel injection timing of at least one fuel injector in a direct injection fuel delivery system of an internal combustion engine is presented. In one example, the timing of a second fuel pulse in a combustion cycle is adjusted in response to injector needle position bounce. T ...


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Ethan D Sanborn, Joseph Lyle Thomas, Daniel Dusa: Method for operating a fuel injection system. Ford Global Technologies, Julia Voutyras, John D Russell, B Anna McCoy, March 21, 2017: US09599060 (2 worldwide citation)

A method of operating an engine with dual fuel injection capabilities to enable fuel rail over-pressure control is shown. The method comprises operating an engine cylinder with only port injection, while selectively activating and deactivating a direct injector in response to an estimated minimum fu ...


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Ross Dykstra Pursifull, Joseph Lyle Thomas, Gopichandra Surnilla, Daniel Dusa: Method and system for characterizing a port fuel injector. Ford Global Technologies, Julia Voutyras, Alleman Hall McCoy Russell & Tuttle, May 10, 2016: US09334824 (2 worldwide citation)

Various systems and methods are described for calibrating a port injector of a common fuel, dual injector per cylinder engine which includes first and second fuel rails and first and second fuel pumps. In one example, after pressurizing both fuel rails and suspending operation of the two pumps simul ...


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Adithya Pravarun Re Ranga, Gopichandra Surnilla, Ethan D Sanborn, Joseph Lyle Thomas, Mark Meinhart: Methods and systems for adjusting fuel injector operation. Ford Global Technologies, Julia Voutyras, Alleman Hall McCoy Russell & Tuttle, August 2, 2016: US09404435 (2 worldwide citation)

Systems and methods for improving fuel injection of an engine that includes a cylinder receiving fuel from two different fuel injectors is disclosed. In one example, a transfer function or gain of a direct fuel injector is adjusted in response to an exhaust lambda value and a fraction of fuel suppli ...