Patents by Inventor David Lew
David Lew 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: 12000366Abstract: Systems and methods for supplying electrical power between two electric energy storage devices are disclosed. In one example, an electric isolation switch is held open after engine starting until a voltage of a first electric energy storage device and a voltage of a second electric energy storage device are within a threshold voltage of at least one predetermined voltage level.Type: GrantFiled: July 7, 2021Date of Patent: June 4, 2024Assignee: Ford Global Technologies, LLCInventors: Alexander O'Connor Gibson, David Lew
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Publication number: 20240116385Abstract: Systems and methods for managing the allocation of incoming charge power between an on-board power supply power output and HV battery power input. An electric vehicle (EV) may be used to provide power to one or more electrical devices connected to an on-board power supply of the EV. When the EV is connected to a charging device, a rate of charge may be determined. An allocation of the incoming charge power from the charging device may be determined as between a high voltage (HV) battery of the electric vehicle and the on-board power supply of the electric vehicle. Power may be simultaneously provided to the HV battery and the on-board power supply.Type: ApplicationFiled: October 7, 2022Publication date: April 11, 2024Applicant: Ford Global Technologies, LLCInventors: Stuart C. Salter, Vyas Shenoy, Tyler James-Ray Kaldobsky, David Lew, Brendan Diamond
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Patent number: 11634032Abstract: Methods and systems are provided for controlling a high power output direct current to alternating current converter for a vehicle. In one example, a method may include at a vehicle-on event, automatically operating the converter in a first power output mode, and transitioning to a different mode of operation in response to a transition request being received at a controller of the vehicle. In this way, the different mode of operation may be subject to confirmation via an operator of the vehicle, which may improve operational performance of the direct current to alternating current converter.Type: GrantFiled: August 29, 2022Date of Patent: April 25, 2023Assignee: Ford Global Technologies, LLCInventors: Scott Steadmon Thompson, John Eric Rollinger, Adam J. Richards, Vincent Martinez, Nicholas Herhusky, Alex O'Connor Gibson, David Lew
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Patent number: 11592558Abstract: Various technologies described herein pertain to a time of flight lidar sensor system that uses a coherent detection scheme. The lidar sensor system includes a laser source, a semiconductor optical amplifier, a combiner, and a balanced detector. The laser source emits an input optical signal. The semiconductor optical amplifier receives a first portion of the input optical signal and outputs a modulated optical signal (amplified and modulated). The combiner receives a second portion of the input optical signal and a returned optical signal received responsive to transmission of at least a portion of the modulated optical signal. The combiner coherently mixes the second portion of the input optical signal with the returned optical signal and outputs mixed optical signals. The balanced detector detects the mixed optical signals and generates an output signal (e.g., a differential photocurrent), which can be used to detect a distance to a target.Type: GrantFiled: May 18, 2020Date of Patent: February 28, 2023Assignee: GM CRUISE HOLDINGS LLCInventors: Abdelkrim El Amili, Jacob Levy, Scott Singer, Vala Fathipour, Ayan Chakrabarty, Kamel Benboudjema, Richard Kalantar Ohanian, David Lew, George Keseyan
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Publication number: 20220410716Abstract: Methods and systems are provided for controlling a high power output direct current to alternating current converter for a vehicle. In one example, a method may include at a vehicle-on event, automatically operating the converter in a first power output mode, and transitioning to a different mode of operation in response to a transition request being received at a controller of the vehicle. In this way, the different mode of operation may be subject to confirmation via an operator of the vehicle, which may improve operational performance of the direct current to alternating current converter.Type: ApplicationFiled: August 29, 2022Publication date: December 29, 2022Inventors: Scott Steadmon Thompson, John Eric Rollinger, Adam J. Richards, Vincent Martinez, Nicholas Herhusky, Alex O`Connor Gibson, David Lew
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Patent number: 11465506Abstract: Methods and systems are provided for controlling a high power output direct current to alternating current converter for a vehicle. In one example, a method may include at a vehicle-on event, automatically operating the converter in a first power output mode, and transitioning to a different mode of operation in response to a transition request being received at a controller of the vehicle. In this way, the different mode of operation may be subject to confirmation via an operator of the vehicle, which may improve operational performance of the direct current to alternating current converter.Type: GrantFiled: June 10, 2020Date of Patent: October 11, 2022Assignee: Ford Global Technologies, LLCInventors: Scott Steadmon Thompson, John Eric Rollinger, Adam J. Richards, Vincent Martinez, Nicholas Herhusky, Alex O'Connor Gibson, David Lew
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Publication number: 20210387528Abstract: Methods and systems are provided for controlling a high power output direct current to alternating current converter for a vehicle. In one example, a method may include at a vehicle-on event, automatically operating the converter in a first power output mode, and transitioning to a different mode of operation in response to a transition request being received at a controller of the vehicle. In this way, the different mode of operation may be subject to confirmation via an operator of the vehicle, which may improve operational performance of the direct current to alternating current converter.Type: ApplicationFiled: June 10, 2020Publication date: December 16, 2021Inventors: Scott Steadmon Thompson, John Eric Rollinger, Adam J. Richards, Vincent Martinez, Nicholas Herhusky, Alex O`Connor Gibson, David Lew
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Publication number: 20210356588Abstract: Various technologies described herein pertain to a time of flight lidar sensor system that uses a coherent detection scheme. The lidar sensor system includes a laser source, a semiconductor optical amplifier, a combiner, and a balanced detector. The laser source emits an input optical signal. The semiconductor optical amplifier receives a first portion of the input optical signal and outputs a modulated optical signal (amplified and modulated). The combiner receives a second portion of the input optical signal and a returned optical signal received responsive to transmission of at least a portion of the modulated optical signal. The combiner coherently mixes the second portion of the input optical signal with the returned optical signal and outputs mixed optical signals. The balanced detector detects the mixed optical signals and generates an output signal (e.g., a differential photocurrent), which can be used to detect a distance to a target.Type: ApplicationFiled: May 18, 2020Publication date: November 18, 2021Inventors: Abdelkrim El Amili, Jacob Levy, Scott Singer, Vala Fathipour, Ayan Chakrabarty, Kamel Benboudjema, Richard Kalantar Ohanian, David Lew, George Keseyan
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Publication number: 20210332782Abstract: Systems and methods for supplying electrical power between two electric energy storage devices are disclosed. In one example, an electric isolation switch is held open after engine starting until a voltage of a first electric energy storage device and a voltage of a second electric energy storage device are within a threshold voltage of at least one predetermined voltage level.Type: ApplicationFiled: July 7, 2021Publication date: October 28, 2021Inventors: Alexander O'Connor Gibson, David Lew
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Patent number: 11156197Abstract: Methods and systems are provided for adjusting engine cranking. In one example, a method for an engine cold start may include extending engine cranking at least based on one or more engine cold start conditions, where extending engine cranking may increase an engine oil pressure in a plurality of camshaft phaser cavities of a variable camshaft timing (VCT) phaser. In some examples, the method may further include, after engine cranking, enabling fueling. In this way, fuel efficiency considerations may be balanced with increases to the engine oil pressure such that components of the VCT phaser may be actuated and/or lubricated.Type: GrantFiled: October 1, 2020Date of Patent: October 26, 2021Assignee: Ford Global Technologies, LLCInventors: David Lew, David Hancock, John E. Rollinger
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Patent number: 11131285Abstract: Systems and methods for supplying electrical power between two electric energy storage devices are disclosed. In one example, an electric isolation switch is held open after engine starting until a voltage of a first electric energy storage device and a voltage of a second electric energy storage device are within a threshold voltage of at least one predetermined voltage level.Type: GrantFiled: January 7, 2019Date of Patent: September 28, 2021Assignee: Ford Global Technologies, LLCInventors: Alexander O'Connor Gibson, David Lew
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Patent number: 11118553Abstract: A method for operating a vehicle that includes a DC/DC converter is described. In one example, the method includes adjusting an output voltage of the DC/DC converter to increase torque of a belt integrated starter/generator. The output voltage of the DC/DC converter may be adjusted before and during engine cranking.Type: GrantFiled: December 10, 2019Date of Patent: September 14, 2021Assignee: Ford Global Technologies, LLCInventors: Alex O'Connor Gibson, John Eric Rollinger, David Hancock, David Lew, James M. Basile
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Patent number: 11098661Abstract: Systems and methods for operating a vehicle that includes an engine and an electric machine are described. In one example, a speed of the engine may be adjusted so that the engine provides power to drive the electric machine without generating numerous rapid engine speed changes in a short amount of time.Type: GrantFiled: June 19, 2019Date of Patent: August 24, 2021Assignee: Ford Global Technologies, LLCInventors: Scott Steadmon Thompson, Vincent Martinez, John Eric Rollinger, David Lew, Nicholas Herhusky
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Publication number: 20210172415Abstract: A method for operating a vehicle that includes a DC/DC converter is described. In one example, the method includes adjusting an output voltage of the DC/DC converter to increase torque of a belt integrated starter/generator. The output voltage of the DC/DC converter may be adjusted before and during engine cranking.Type: ApplicationFiled: December 10, 2019Publication date: June 10, 2021Inventors: Alex O'Connor Gibson, John Eric Rollinger, David Hancock, David Lew, James M. Basile
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Patent number: 10961970Abstract: Systems and methods for operating a powertrain or driveline that includes an engine and a belt integrated starter/generator are described. In one example, the belt integrated starter/generator is used to start an engine unless vehicle operating conditions indicate that the belt integrated starter/generator may be having difficulty starting the engine.Type: GrantFiled: February 20, 2020Date of Patent: March 30, 2021Assignee: Ford Global Technologies, LLCInventors: David Lew, David Hancock
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Publication number: 20200400084Abstract: Systems and methods for operating a vehicle that includes an engine and an electric machine are described. In one example, a speed of the engine may be adjusted so that the engine provides power to drive the electric machine without generating numerous rapid engine speed changes in a short amount of time.Type: ApplicationFiled: June 19, 2019Publication date: December 24, 2020Inventors: Scott Steadmon Thompson, Vincent Martinez, John Eric Rollinger, David Lew, Nicholas Herhusky
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Patent number: 10760482Abstract: Systems and methods for operating a vehicle that includes an engine and an electric machine are described. In one example, operation of the engine may be adjusted to compensate for conditions when carbon deposits may build on one or more engine spark plugs. The engine adjustments may help to remove carbon deposits from the engine's spark plugs.Type: GrantFiled: June 18, 2019Date of Patent: September 1, 2020Assignee: Ford Global Technologies, LLCInventors: Nicholas Herhusky, Scott Steadmon Thompson, John Eric Rollinger, David Lew
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Publication number: 20200217290Abstract: Systems and methods for supplying electrical power between two electric energy storage devices are disclosed. In one example, an electric isolation switch is held open after engine starting until a voltage of a first electric energy storage device and a voltage of a second electric energy storage device are within a threshold voltage of at least one predetermined voltage level.Type: ApplicationFiled: January 7, 2019Publication date: July 9, 2020Inventors: Alexander O'Connor Gibson, David Lew
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Patent number: 10029695Abstract: Methods and systems are provided for identifying degradation of a belt-driven integrated starter generator (BISG) active belt tensioner coupled to a vehicle engine. By using the monitored change in FEAD load to compare the actual state of the tensioner (either in retracted or extended state) relative to the commanded state, the presence of excess belt tension may be distinguished from the presence of insufficient belt tension. Timely diagnosis of a belt tensioner may be improve belt health and extend fuel economy benefits of a BISG system.Type: GrantFiled: March 3, 2017Date of Patent: July 24, 2018Assignee: Ford Global Technologies, LLCInventors: Alexander O'Connor Gibson, John Eric Rollinger, David Lew, David Spuller, Veronica Pablo Osorio
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Publication number: 20140276178Abstract: A multi-lumen breathing tube device providing for separate and bidirectional gas flow for expired and inspired gas during ventilation of a lung. Embodiments of the multi-lumen breathing tube include an improved laryngeal mask airway device and an improved endotracheal tube. The invention is compatible with a circle breathing circuit system used with many mechanical ventilators including those used in conjunction with anesthesia machines.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Inventor: David Lew Simon