Patents by Inventor Mustansir Kheraluwala
Mustansir Kheraluwala 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: 11611287Abstract: A system comprises a first 3-phase rectifier having a positive DC lead and a negative DC lead and a second 3-phase rectifier having a positive DC lead and a negative DC lead. The system also includes a 4-phase, 3-level inverter connected to the first and second 3-phase rectifiers. A method comprises receiving variable frequency, 3-phase power from a first generator, receiving variable frequency, 3-phase power from a second generator, rectifying the variable frequency, 3-phase power from each of the first and second generators into DC power. And inverting the DC power into 4-phase, constant frequency power for powering a load.Type: GrantFiled: February 10, 2021Date of Patent: March 21, 2023Assignee: Hamilton Sundstrand CorporationInventors: Dwight D. Schmitt, Mustansir Kheraluwala, Eric A. Carter
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Patent number: 11598384Abstract: A disconnect mechanism comprises an input shaft defining a drive axis, a disconnect shaft selectively engaged with the input shaft to be driven about the drive axis by the input shaft, and a disconnect ramp operatively connected to the disconnect shaft to axially move the disconnect shaft between at least a first axial position and a second axial position. A disconnect pawl is selectively engaged with the disconnect ramp shaft, and a brake is selectively engaged with the disconnect shaft in the second axial position.Type: GrantFiled: August 3, 2021Date of Patent: March 7, 2023Assignee: Hamilton Sundstrand CorporationInventors: Aaron M. Finke, Andreas C. Koenig, Tyler W. Hayes, Mustansir Kheraluwala
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Publication number: 20230039164Abstract: A disconnect mechanism comprises an input shaft defining a drive axis, a disconnect shaft selectively engaged with the input shaft to be driven about the drive axis by the input shaft, and a disconnect ramp operatively connected to the disconnect shaft to axially move the disconnect shaft between at least a first axial position and a second axial position. A disconnect pawl is selectively engaged with the disconnect ramp shaft, and a brake is selectively engaged with the disconnect shaft in the second axial position.Type: ApplicationFiled: August 3, 2021Publication date: February 9, 2023Applicant: Hamilton Sundstrand CorporationInventors: Aaron M. Finke, Andreas C. Koenig, Tyler W. Hayes, Mustansir Kheraluwala
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Publication number: 20220352836Abstract: An engine system includes a turbine engine having a high pressure spool and a low pressure spool. A transmission includes an input shaft connected to one of the high pressure spool and the low pressure spool, and an output shaft. A clutch is arranged between the input shaft and the output shaft. A generator is connected to the output shaft. A clutch controller activates the clutch when one of the high pressure spool and the low pressure spool, and the generator are operating at a selected speed range.Type: ApplicationFiled: July 16, 2021Publication date: November 3, 2022Inventors: Tyler W. Hayes, Jon Barry Althof, Aaron M. Finke, Mustansir Kheraluwala
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Patent number: 11456680Abstract: A power system includes an inverter that convert a DC voltage to a three-phase alternating current (AC) voltage. One or more switch drivers generate a pulse width modulation (PWM) drive signal that drives the inverter. The power system further includes a controller that determines a modulation index associated with the PWM drive signal and injects a harmonic into the PWM drive signal in response to the modulation index exceeding a modulation index threshold value.Type: GrantFiled: April 29, 2021Date of Patent: September 27, 2022Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Huazhen Chai, Mustansir Kheraluwala
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Publication number: 20220255452Abstract: A system comprises a first 3-phase rectifier having a positive DC lead and a negative DC lead and a second 3-phase rectifier having a positive DC lead and a negative DC lead. The system also includes a 4-phase, 3-level inverter connected to the first and second 3-phase rectifiers. A method comprises receiving variable frequency, 3-phase power from a first generator, receiving variable frequency, 3-phase power from a second generator, rectifying the variable frequency, 3-phase power from each of the first and second generators into DC power. And inverting the DC power into 4-phase, constant frequency power for powering a load.Type: ApplicationFiled: February 10, 2021Publication date: August 11, 2022Inventors: Dwight D. Schmitt, Mustansir Kheraluwala, Eric A. Carter
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Patent number: 11215477Abstract: A motor control system can include a resolver configured to output resolver signals and a plurality of motor drives, each motor drive configured to drive a segment of a segmented motor. A resolver signal splitter can be connected between the resolver and the plurality of motor drives to split the resolver signals from the resolver to provide each motor drive with the resolver signals.Type: GrantFiled: March 11, 2020Date of Patent: January 4, 2022Assignee: Hamilton Sundstrand CorporationInventors: Patrick B. Palanca, Mustansir Kheraluwala
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Patent number: 11183956Abstract: An electric propulsion system includes a prime mover, a starter-motor generator configured to be driven by the prime mover to generate electric power, and an electric propulsion motor, and an integrated generator-motor controller arranged to control the supply of the electric power to the electric propulsion motor in response to a control signal, wherein the integrated generator-motor controller includes an active rectifier configured in a first mode to feed-forward to the starter-motor generator a power demand parameter associated with the control signal so as to control the power output of the starter-motor generator in order to start the prime mover.Type: GrantFiled: March 21, 2019Date of Patent: November 23, 2021Assignee: Hamilton Sundstrand CorporationInventors: Mustansir Kheraluwala, Tadashi Sawata, Michael C. Harke
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Publication number: 20210351689Abstract: A power system includes an inverter that convert a DC voltage to a three-phase alternating current (AC) voltage. One or more switch drivers generate a pulse width modulation (PWM) drive signal that drives the inverter. The power system further includes a controller that determines a modulation index associated with the PWM drive signal and injects a harmonic into the PWM drive signal in response to the modulation index exceeding a modulation index threshold value.Type: ApplicationFiled: April 29, 2021Publication date: November 11, 2021Inventors: Huazhen Chai, Mustansir Kheraluwala
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Publication number: 20210285793Abstract: A motor control system can include a resolver configured to output resolver signals and a plurality of motor drives, each motor drive configured to drive a segment of a segmented motor. A resolver signal splitter can be connected between the resolver and the plurality of motor drives to split the resolver signals from the resolver to provide each motor drive with the resolver signals.Type: ApplicationFiled: March 11, 2020Publication date: September 16, 2021Applicant: Hamilton Sundstrand CorporationInventors: Patrick B. Palanca, Mustansir Kheraluwala
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Patent number: 11121773Abstract: Provided are embodiments of a system for split power-control electronics with fiber-optic multiplexing. The system includes one or more power electronics modules configured to provide power to a load, and a control card configured to control the one or more power electronics modules. The system also includes a control module configured to receive and process the control card, and one or more connections, the one or more connections configured to connect a control module to the one or more power electronics modules. Also provided are embodiments of a method for operating power electronics modules in a redundant mode.Type: GrantFiled: February 14, 2020Date of Patent: September 14, 2021Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Gary L. Miles, Christopher J. Courtney, Michael C. Harke, Mustansir Kheraluwala
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Publication number: 20210258073Abstract: Provided are embodiments of a system for split power-control electronics with fiber-optic multiplexing. The system includes one or more power electronics modules configured to provide power to a load, and a control card configured to control the one or more power electronics modules. The system also includes a control module configured to receive and process the control card, and one or more connections, the one or more connections configured to connect a control module to the one or more power electronics modules. Also provided are embodiments of a method for operating power electronics modules in a redundant mode.Type: ApplicationFiled: February 14, 2020Publication date: August 19, 2021Inventors: Gary L. Miles, Christopher J. Courtney, Michael C. Harke, Mustansir Kheraluwala
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Patent number: 10910827Abstract: A solid state power controller, SSPC, having an input to receive supply current and an output for providing output current to a load in response to connection to the power supply, the solid state power controller further comprising at least one solid state switch and a controller to limit the power dissipated in the solid state power switch based on a measured voltage across the solid state switch and a predetermined power dissipation threshold for the SSPC to adjust the output current or voltage control signal of the solid state switch such that the actual power dissipation of the SSPC does not exceed the threshold.Type: GrantFiled: March 8, 2018Date of Patent: February 2, 2021Assignee: HAMILTON SUNSTRAND CORPORATIONInventors: Virgilio Valdivia Guerrero, Fabien Dubois, Laura Albiol-Tendillo, Mustansir Kheraluwala
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Patent number: 10892082Abstract: An inductor housing for housing an inductor having a core and a winding includes an outer annular wall and a third wall extending inward from the outer annular wall such that the outer annular wall and the third wall at least partially define an annular cavity configured to receive the inductor. The inductor housing further includes an attachment feature configured to couple the inductor housing to a secondary housing. The inductor is configured to be enclosed within the annular cavity and the secondary housing, and coolant from a coolant supply is configured to flow past the annular cavity and contact the winding of the inductor.Type: GrantFiled: December 12, 2017Date of Patent: January 12, 2021Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Mark W. Metzler, Debabrata Pal, Mustansir Kheraluwala, Charles Patrick Shepard
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Patent number: 10855214Abstract: Disclosed is an energy management system for an aircraft. The system includes an electric machine including a stator surrounding a rotor having permanent magnets disposed therein, wherein rotation of the rotor causes an alternating current to be generated in windings of the stator that is uncontrolled. The system includes an electric propulsion system. The system includes a bidirectional power converter having a first side connected to the electric machine and a second side galvanically isolated from the first side and connected to the electric propulsion system. The bidirectional power converter includes a switching network that regulates power associated with the electric machine and power transfer across the bidirectional power converter. The switching network is operable to satisfy collective power flows of the electric machine and the electric propulsion system through the bidirectional power converter.Type: GrantFiled: April 9, 2019Date of Patent: December 1, 2020Assignee: HAMILTON SUNSTRAND CORPORATIONInventors: Mustansir Kheraluwala, Xin Wu
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Publication number: 20200328706Abstract: Disclosed is an energy management system for an aircraft. The system includes an electric machine including a stator surrounding a rotor having permanent magnets disposed therein, wherein rotation of the rotor causes an alternating current to be generated in windings of the stator that is uncontrolled. The system includes an electric propulsion system. The system includes a bidirectional power converter having a first side connected to the electric machine and a second side galvanically isolated from the first side and connected to the electric propulsion system. The bidirectional power converter includes a switching network that regulates power associated with the electric machine and power transfer across the bidirectional power converter. The switching network is operable to satisfy collective power flows of the electric machine and the electric propulsion system through the bidirectional power converter.Type: ApplicationFiled: April 9, 2019Publication date: October 15, 2020Inventors: Mustansir Kheraluwala, Xin Wu
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Publication number: 20200304047Abstract: An electric propulsion system includes a prime mover, an starter-motor generator configured to be driven by the prime mover to generate electric power, and an electric propulsion motor, and an integrated generator-motor controller arranged to control the supply of the electric power to the electric propulsion motor in response to a control signal, wherein the integrated generator-motor controller includes an active rectifier configured in a first mode to feed-forward to the starter-motor generator a power demand parameter associated with the control signal so as to control the power output of the starter-motor generator in order to start the prime mover.Type: ApplicationFiled: March 21, 2019Publication date: September 24, 2020Inventors: Mustansir Kheraluwala, Tadashi Sawata, Michael C. Harke
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Patent number: 10491130Abstract: A power converter may comprise a magnetic core, a transformer primary winding configured to generate a magnetic field in the magnetic core, and a transformer secondary winding matrix. The transformer secondary winding matrix may comprise a plurality of secondary windings configurable between various electrical connections relative to one another (e.g., in series or in parallel) to adjust a voltage conversion ratio of the power converter.Type: GrantFiled: December 21, 2017Date of Patent: November 26, 2019Assignee: Hamilton Sundstrand CorporationInventors: Michael Anthony Futrell, Mustansir Kheraluwala, Christopher J Courtney, John Duward Sagona
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Publication number: 20190199225Abstract: A power converter may comprise a magnetic core, a transformer primary winding configured to generate a magnetic field in the magnetic core, and a transformer secondary winding matrix. The transformer secondary winding matrix may comprise a plurality of secondary windings configurable between various electrical connections relative to one another (e.g., in series or in parallel) to adjust a voltage conversion ratio of the power converter.Type: ApplicationFiled: December 21, 2017Publication date: June 27, 2019Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Michael Anthony Futrell, Mustansir Kheraluwala, Christopher J. Courtney, John Duward Sagona
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Publication number: 20190180908Abstract: An inductor housing for housing an inductor having a core and a winding includes an outer annular wall and a third wall extending inward from the outer annular wall such that the outer annular wall and the third wall at least partially define an annular cavity configured to receive the inductor. The inductor housing further includes an attachment feature configured to couple the inductor housing to a secondary housing. The inductor is configured to be enclosed within the annular cavity and the secondary housing, and coolant from a coolant supply is configured to flow past the annular cavity and contact the winding of the inductor.Type: ApplicationFiled: December 12, 2017Publication date: June 13, 2019Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Mark W. Metzler, Debabrata Pal, Mustansir Kheraluwala, Charles Patrick Shepard