Patents by Inventor Akash Changarankumarath Pradeepkumar
Akash Changarankumarath Pradeepkumar 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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Publication number: 20240155817Abstract: A vehicle power module assembly including first and second power modules is provided. The first power module may include a first lock feature extending from a lower portion of a first minor side at a first central axis. The second power module may include a second lock feature at an upper portion of a second minor side at a second central axis. The lock features may be sized for interlock with one another to secure the power modules to one another. The first lock feature may be a loop element defining a through-hole and the second lock feature may be a wedge. The through-hole may be sized for the wedge to extend therein and to interlock the first power module and the second power module to one another. The first lock feature may be a flexible hook element and the second lock feature may be a slot.Type: ApplicationFiled: January 19, 2024Publication date: May 9, 2024Inventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Chan-Jiun Jih, Guangyin Lei
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Publication number: 20240097509Abstract: A method for applying varnish to a stator of an electric motor includes depositing varnish onto an outer laminate of the stator, accumulating the deposited varnish with a ridge on the outer laminate, and directing the accumulated varnish into a slot of the outer laminate with the ridge.Type: ApplicationFiled: September 16, 2022Publication date: March 21, 2024Applicant: Ford Global Technologies, LLCInventors: Akash Changarankumarath Pradeepkumar, Singar Rathnam
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Patent number: 11889667Abstract: A vehicle power module assembly including first and second power modules is provided. The first power module may include a first lock feature extending from a lower portion of a first minor side at a first central axis. The second power module may include a second lock feature at an upper portion of a second minor side at a second central axis. The lock features may be sized for interlock with one another to secure the power modules to one another. The first lock feature may be a loop element defining a through-hole and the second lock feature may be a wedge. The through-hole may be sized for the wedge to extend therein and to interlock the first power module and the second power module to one another. The first lock feature may be a flexible hook element and the second lock feature may be a slot.Type: GrantFiled: April 1, 2022Date of Patent: January 30, 2024Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Chan-Jiun Jih, Guangyin Lei
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Publication number: 20230412037Abstract: An electric machine includes windings, a terminal block, and terminal connectors. The windings have lead ends and neutral ends. The terminal block has a plurality of bus bars, a neutral bar, and an insulating material. Each bus bar is connected to one or more of the lead ends. The neutral bar is connected to one or more of the neutral ends. The insulating material encapsulates the plurality of bus bars and the neutral bar, defines a plurality of orifices, and defines a plurality of slots. Each lead end extends through one of the orifices from the outer boundary to one of the bus bars. Each neutral end extends through one of the orifices from the outer boundary to neutral bar. Each terminal connector extends through one of the slots from the outer boundary to one of the bus bars.Type: ApplicationFiled: June 16, 2022Publication date: December 21, 2023Inventors: Akash Changarankumarath Pradeepkumar, Singar Rathnam, Joel Hetrick, Joshua Simon
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Patent number: 11817741Abstract: A vehicle, electric machine, and stator include stator teeth extending from a yoke portion toward a rotor and defining slots between adjacent teeth with windings positioned within the slots, wherein the teeth form pockets at connections to the yoke portion. Electrically insulating slot paper may line at least three sides of the slots. The pockets may extend into the teeth or the yoke portion where the teeth extend from the yoke portion, and may be filled with an electrically insulating compound that secures the insulating slot paper lining and electrically conductive rectangular windings within the slots.Type: GrantFiled: March 23, 2021Date of Patent: November 14, 2023Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Singar Rathnam, Joel Hetrick, Akash Changarankumarath Pradeepkumar
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Patent number: 11705770Abstract: A vehicle includes a battery, an electric machine, a thermistor, and a controller. The electric machine is configured to draw electrical power from the battery to propel the vehicle. The electric machine has a rotor and a stator. The stator has a core defining a plurality of slots and windings arranged within the slots. The thermistor is disposed within a first of the slots between first and second axial ends of the core and is configured to measure a temperature of the electric machine. The controller is programmed to control a power output of the electric machine based on the temperature of the electric machine.Type: GrantFiled: September 10, 2021Date of Patent: July 18, 2023Assignee: Ford Global Technologies, LLCInventors: Akash Changarankumarath Pradeepkumar, Singar Rathnam
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Publication number: 20230080266Abstract: A vehicle includes a battery, an electric machine, a thermistor, and a controller. The electric machine is configured to draw electrical power from the battery to propel the vehicle. The electric machine has a rotor and a stator. The stator has a core defining a plurality of slots and windings arranged within the slots. The thermistor is disposed within a first of the slots between first and second axial ends of the core and is configured to measure a temperature of the electric machine. The controller is programmed to control a power output of the electric machine based on the temperature of the electric machine.Type: ApplicationFiled: September 10, 2021Publication date: March 16, 2023Inventors: Akash Changarankumarath Pradeepkumar, Singar Rathnam
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Publication number: 20230081983Abstract: A vehicle includes a battery, an electric machine, a thermistor, and a controller. The electric machine is configured to draw electrical power from the battery to propel the vehicle. The electric machine has a rotor and a stator. The stator has a core, interconnected hairpins, and a neutral bar. The core defines slots. The interconnected hairpin windings are arranged within the slots and are arranged to form a plurality of electrical phases. The neutral bar is connected to each of the electrical phases and defines an orifice. The thermistor is disposed within the orifice and is configured to sense a temperature of the electric machine. The controller is programmed to control a power output of the electric machine based on the temperature of the electric machine.Type: ApplicationFiled: September 10, 2021Publication date: March 16, 2023Inventors: Akash Changarankumarath Pradeepkumar, Singar Rathnam
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Publication number: 20220311290Abstract: A vehicle, electric machine, and stator include stator teeth extending from a yoke portion toward a rotor and defining slots between adjacent teeth with windings positioned within the slots, wherein the teeth form pockets at connections to the yoke portion. Electrically insulating slot paper may line at least three sides of the slots. The pockets may extend into the teeth or the yoke portion where the teeth extend from the yoke portion, and may be filled with an electrically insulating compound that secures the insulating slot paper lining and electrically conductive rectangular windings within the slots.Type: ApplicationFiled: March 23, 2021Publication date: September 29, 2022Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Singar RATHNAM, Joel HETRICK, Akash Changarankumarath PRADEEPKUMAR
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Publication number: 20220225548Abstract: A vehicle power module assembly including first and second power modules is provided. The first power module may include a first lock feature extending from a lower portion of a first minor side at a first central axis. The second power module may include a second lock feature at an upper portion of a second minor side at a second central axis. The lock features may be sized for interlock with one another to secure the power modules to one another. The first lock feature may be a loop element defining a through-hole and the second lock feature may be a wedge. The through-hole may be sized for the wedge to extend therein and to interlock the first power module and the second power module to one another. The first lock feature may be a flexible hook element and the second lock feature may be a slot.Type: ApplicationFiled: April 1, 2022Publication date: July 14, 2022Inventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Chan-Jiun Jih, Guangyin Lei
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Patent number: 11317546Abstract: A vehicle power module assembly including first and second power modules is provided. The first power module may include a first lock feature extending from a lower portion of a first minor side at a first central axis. The second power module may include a second lock feature at an upper portion of a second minor side at a second central axis. The lock features may be sized for interlock with one another to secure the power modules to one another. The first lock feature may be a loop element defining a through-hole and the second lock feature may be a wedge. The through-hole may be sized for the wedge to extend therein and to interlock the first power module and the second power module to one another. The first lock feature may be a flexible hook element and the second lock feature may be a slot.Type: GrantFiled: June 26, 2018Date of Patent: April 26, 2022Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Chan-Jiun Jih, Guangyin Lei
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Patent number: 11052740Abstract: An electric vehicle power supply includes a housing, a power supply, and a plurality of fasteners. The housing defines an internal cavity and has inwardly protruding tabs that extend into the cavity. The power assembly has a front cover and an end cover. The power assembly also has an array of electrical switching units arranged horizontally between the front and end covers. The front and end covers have outwardly protruding tabs. Each of the plurality of fasteners extend vertically, engage one inwardly protruding tab, and engage one outwardly protruding tab to secure the power assembly to the housing.Type: GrantFiled: June 5, 2018Date of Patent: July 6, 2021Assignee: Ford Global Technologies, LLCInventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Chan-Jiun Jih, Guangyin Lei
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Patent number: 10631429Abstract: A vehicle power module assembly including an array of stacked switch unit assemblies, a front cover, first and second side rails, and an end cover is provided. Each of the assemblies may include a power stage frame having a mid-cutout located at a substantially central side frame region such that a mid-cutout region is defined along each side of the array. The front cover may be disposed at a first end of the array. The first and second side rails may each extend from the front cover and each may be disposed within one of the mid-cutout regions such that an outer surface of each side rail is substantially flush with an outer surface of a respective power stage frame. The end cover may be arranged with the front cover to retain the assemblies therebetween. The assembly may further include a clamping plate and a spring element.Type: GrantFiled: July 13, 2018Date of Patent: April 21, 2020Assignee: Ford Global Technologies, LLCInventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Jih, Guangyin Lei
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Publication number: 20200022278Abstract: A vehicle power module assembly including an array of stacked switch unit assemblies, a front cover, first and second side rails, and an end cover is provided. Each of the assemblies may include a power stage frame having a mid-cutout located at a substantially central side frame region such that a mid-cutout region is defined along each side of the array. The front cover may be disposed at a first end of the array. The first and second side rails may each extend from the front cover and each may be disposed within one of the mid-cutout regions such that an outer surface of each side rail is substantially flush with an outer surface of a respective power stage frame. The end cover may be arranged with the front cover to retain the assemblies therebetween. The assembly may further include a clamping plate and a spring element.Type: ApplicationFiled: July 13, 2018Publication date: January 16, 2020Applicant: Ford Global Technologies, LLCInventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Jih, Guangyin Lei
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Publication number: 20190394907Abstract: A vehicle power module assembly including first and second power modules is provided. The first power module may include a first lock feature extending from a lower portion of a first minor side at a first central axis. The second power module may include a second lock feature at an upper portion of a second minor side at a second central axis. The lock features may be sized for interlock with one another to secure the power modules to one another. The first lock feature may be a loop element defining a through-hole and the second lock feature may be a wedge. The through-hole may be sized for the wedge to extend therein and to interlock the first power module and the second power module to one another. The first lock feature may be a flexible hook element and the second lock feature may be a slot.Type: ApplicationFiled: June 26, 2018Publication date: December 26, 2019Applicant: Ford Glogal Technologies, LLCInventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Chan-Jiun Jih, Guangyin Lei
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Publication number: 20190366823Abstract: An electric vehicle power supply includes a housing, a power supply, and a plurality of fasteners. The housing defines an internal cavity and has inwardly protruding tabs that extend into the cavity. The power assembly has a front cover and an end cover. The power assembly also has an array of electrical switching units arranged horizontally between the front and end covers. The front and end covers have outwardly protruding tabs. Each of the plurality of fasteners extend vertically, engage one inwardly protruding tab, and engage one outwardly protruding tab to secure the power assembly to the housing.Type: ApplicationFiled: June 5, 2018Publication date: December 5, 2019Inventors: Akash Changarankumarath PRADEEPKUMAR, Alfredo R. MUNOZ, Michael W. DEGNER, Edward Chan-Jiun JIH, Guangyin LEI
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Patent number: 10405466Abstract: According to one embodiment, a power-module assembly includes a power-module stack having coolant chambers interleaved with power modules and supply and return manifold channels extending axially along the stack. An endcap has a major side defining recessed inlet and outlet manifold cavities aligned with the channels and inlet and outlet ports disposed on one or more minor sides that are perpendicular to the major side.Type: GrantFiled: June 14, 2018Date of Patent: September 3, 2019Assignee: Ford Global Technologies, LLCInventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Chan-Jiun Jih, Guangyin Lei
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Patent number: 10377217Abstract: A vehicle power supply includes a housing, a backing plate, a power assembly, and a clamp. The housing has a bottom wall and a side wall. The backing plate extends from the bottom wall. The power assembly has an array of electrical switching units that extend from the side wall to the backing plate. The clamp extends from the backing plate and is configured to engage a backside of the array such that a frontside of the array is forced into engagement with the side wall.Type: GrantFiled: June 5, 2018Date of Patent: August 13, 2019Assignee: Ford Global Technologies, LLCInventors: Akash Changarankumarath Pradeepkumar, Alfredo R. Munoz, Michael W. Degner, Edward Chan-Jiun Jih, Guangyin Lei