Patents by Inventor Jacob M. Povirk
Jacob M. Povirk 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: 10870347Abstract: A wheel end assembly includes a first shaft supported on a knuckle secured to a vehicle frame, including first clutch teeth, a second shaft secured to the halfshaft, a coil, and a collar rotatably secured to the second shaft, axially displaceable relative to the first shaft, including second clutch teeth that alternately engage the first clutch teeth due to an electromagnetic field produced by energizing the coil and disengage from the first clutch teeth.Type: GrantFiled: December 12, 2013Date of Patent: December 22, 2020Assignee: FORD GLOABL TECHNOLOGIES, LLCInventors: John R. Saieg, Jacob M. Povirk, Dennis W. Isken, II, Brian J. Andonian
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Patent number: 10364850Abstract: A clutch mechanism includes a gear including clutch teeth, a housing having axial holes, including displaceable pins, each pin fitted in one of the holes, and a plate of forged powdered metal, the plate including second teeth, axial displacement of the pins causing axial displacement of the plate relative to the gear and the housing, and engagement of the second teeth with the clutch teeth.Type: GrantFiled: October 23, 2012Date of Patent: July 30, 2019Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Brian J. Andonian, Jihong Guo, Dennis W. Isken, II, Jacob M. Povirk, Kevin M. Sullivan
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Patent number: 9902379Abstract: A method for controlling wheel hop at a vehicle axle includes determining that one of a difference between average front and rear wheel speeds exceeds a reference difference, a frequency of a signal produced by an accelerometer mounted on the axle exceeds a reference frequency, and a frequency of a lock ring torque exceeds a second reference frequency; pulsing pressure in the wheel brakes of the axle; and reducing engine torque.Type: GrantFiled: May 23, 2011Date of Patent: February 27, 2018Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Brian J. Andonian, Jacob M. Povirk, David A. Robertson, Jihong Guo, Patrick Meloche, Gary M. Pietrzyk
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Patent number: 9605740Abstract: A method for controlling a locking differential of a motor vehicle includes locking the differential, if vehicle speed is less than a reference speed, and a wheel speed differential due to wheel slip is greater than a reference speed; and unlocking the differential and preventing its engagement, if vehicle speed is greater than the reference speed, and said wheel speed differential is less than a reference speed.Type: GrantFiled: October 1, 2009Date of Patent: March 28, 2017Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Jacob M. Povirk, Brian J. Andonian, Joseph J. Torres, Kenneth G. Walega
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Patent number: 9234583Abstract: A hydraulic system for supplying fluid to a torque converter of an automatic transmission for a vehicle driven by a power source includes a torque converter including an impeller, a turbine, and an impeller clutch for alternately engaging and disengaging a drive connection between the impeller and the power source, a hydraulic control system producing line pressure and converter charge pressure that communicates with the impeller clutch, a discharge line communicating with the impeller clutch and through which hydraulic fluid discharges from the torque converter at a discharge pressure similar to the first pressure, thereby minimizing a pressure differential across the impeller clutch tending to disengage the impeller clutch, and an oil cooler to which fluid is supplied from at least one of the source of line pressure and the converter discharge line and from which fluid returns to the control system.Type: GrantFiled: July 17, 2007Date of Patent: January 12, 2016Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: James T. Gooden, Jacob M. Povirk, William R. Simpson
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Patent number: 9212704Abstract: A clutch mechanism includes a coil of wire for producing an electromagnetic field, a locking ring secured against rotation within a case or housing, a gear engageable with the locking ring, and a lever that pivots in response to the electromagnetic field produced by energizing the coil causing the locking ring to engage the gear and hold the gear against rotation.Type: GrantFiled: April 24, 2012Date of Patent: December 15, 2015Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Brian J. Andonian, Jihong Guo, Yasser Hindi, Dennis W. Isken, II, Jacob M. Povirk
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Publication number: 20150167751Abstract: A wheel end assembly includes a first shaft supported on a knuckle secured to a vehicle frame, including first clutch teeth, a second shaft secured to the halfshaft, a coil, and a collar rotatably secured to the second shaft, axially displaceable relative to the first shaft, including second clutch teeth that alternately engage the first clutch teeth due to an electromagnetic field produced by energizing the coil and disengage from the first clutch teeth.Type: ApplicationFiled: December 12, 2013Publication date: June 18, 2015Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: John R. Saieg, Jacob M. Povirk, Dennis W. Isken, II, Brian J. Andonian
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Publication number: 20140110211Abstract: A clutch mechanism includes a gear including clutch teeth, a housing having axial holes, including displaceable pins, each pin fitted in one of the holes, and a plate of forged powdered metal, the plate including second teeth, axial displacement of the pins causing axial displacement of the plate relative to the gear and the housing, and engagement of the second teeth with the clutch teeth.Type: ApplicationFiled: October 23, 2012Publication date: April 24, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Brian J. Andonian, Jihong Guo, Dennis W. Isken, II, Jacob M. Povirk, Kevin M. Sullivan
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Publication number: 20130277165Abstract: A clutch mechanism includes a coil of wire for producing an electromagnetic field, a locking ring secured against rotation within a case or housing, a gear engageable with the locking ring, and a lever that pivots in response to the electromagnetic field produced by energizing the coil causing the locking ring to engage the gear and hold the gear against rotation.Type: ApplicationFiled: April 24, 2012Publication date: October 24, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Brian J. Andonian, Jihong Guo, Yasser Hindi, Dennis W. Isken, II, Jacob M. Povirk
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Patent number: 8523737Abstract: A method for controlling a vehicle drivetrain includes de-energizing a clutch that connects a differential output to a wheel, rotating said component through a sump by pulsing the clutch when a speed of a differential component is less than a reference speed, and cyclically pulsing the clutch while a speed of said component exceeds the reference speed and a count of a timer, started when the clutch is de-energized, exceeds a reference count.Type: GrantFiled: July 11, 2012Date of Patent: September 3, 2013Assignee: Ford Global Technologies, LLCInventors: Charles E. Krysztof, Jacob M. Povirk, Kevin M. Sullivan, Wayne B. Uhrick, Charles G. Hartinger, Thomas E. Gochenour, Andreas E. Perakes
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Patent number: 8454471Abstract: A differential mechanism includes a case, a gear rotatable about an axis, a lock ring held against rotation relative to the case, a lever contacting the lock ring, and an electromagnetic coil that is displaced axially when energized, pivoting the lever, engaging the lock ring with the side gear, and preventing the gear from rotating relative to the case.Type: GrantFiled: July 21, 2010Date of Patent: June 4, 2013Assignee: Ford Global Technologies, LLCInventors: Dennis W. Isken, II, Hihong Guo, Brian J. Andonian, Jacob M. Povirk, Yasser Hindi
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Publication number: 20120303236Abstract: A method for controlling wheel hop at a vehicle axle includes determining that one of a difference between average front and rear wheel speeds exceeds a reference difference, a frequency of a signal produced by an accelerometer mounted on the axle exceeds a reference frequency, and a frequency of a lock ring torque exceeds a second reference frequency; pulsing pressure in the wheel brakes of the axle; and reducing engine torque.Type: ApplicationFiled: May 23, 2011Publication date: November 29, 2012Applicant: FORD GLOBAL TECHNOLOGIES LLCInventors: Brian J. Andonian, Jacob M. Povirk, David A. Robertson, Jihong Guo, Patrick Meloche, Gary M. Pietrzyk
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Patent number: 8265842Abstract: A method for controlling a clutch of an electronic locking differential for a vehicle includes determining either that a speed of the vehicle is less than a reference speed or that a desired state of the clutch is a disengaged state, determining that an angular displacement of a steering wheel from a centered position is less than a first reference angle, and disengaging the clutch.Type: GrantFiled: July 23, 2009Date of Patent: September 11, 2012Assignee: Ford Global Technologies, LLCInventors: Jacob M. Povirk, John R. Saieg, Gary M. Pietrzyk
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Patent number: 8156843Abstract: A method for controlling a locking differential includes determining a temperature-dependent reference voltage at which a coil locks the differentia, determining an electric potential of a battery, using the battery to energize the coil and lock the differential, if the electric potential is equal to or greater than the reference voltage for a current temperature, and maintaining the differential unlocked, if the electric potential is less than the reference voltage.Type: GrantFiled: April 7, 2009Date of Patent: April 17, 2012Assignee: Ford Global Technologies, LLCInventors: Jacob M. Povirk, Joseph J. Torres, Brian J. Andonian, Jihong Guo, Patrick Meloche, Kenneth G. Walega
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Patent number: 8109853Abstract: A method for controlling a locking differential for a vehicle includes using a coil to unlock the differential, if the vehicle stops for a period whose length is equal to or greater than a reference length, and using the coil to lock the differential, if the vehicle is moving or stopped for less than the reference length.Type: GrantFiled: April 7, 2009Date of Patent: February 7, 2012Assignee: Ford Global Technologies, LLCInventors: Jacob M. Povirk, Joseph J. Torres, Brian J. Andonian, Jihong Guo, Patrick Meloche, Kenneth G. Walega
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Publication number: 20120021862Abstract: A differential mechanism includes a case, a gear rotatable about an axis, a lock ring held against rotation relative to the case, a lever contacting the lock ring, and an electromagnetic coil that is displaced axially when energized, pivoting the lever, engaging the lock ring with the side gear, and preventing the gear from rotating relative to the case.Type: ApplicationFiled: July 21, 2010Publication date: January 26, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Dennis W. Isken, II, Jihong Guo, Brian J. Andonian, Jacob M. Povirk, Yasser Hindi
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Publication number: 20110082634Abstract: A method for controlling a locking differential of a motor vehicle includes locking the differential, if vehicle speed is less than a reference speed, and a wheel speed differential due to wheel slip is greater than a reference speed; and unlocking the differential and preventing its engagement, if vehicle speed is greater than the reference speed, and said wheel speed differential is less than a reference speed.Type: ApplicationFiled: October 1, 2009Publication date: April 7, 2011Inventors: Jacob M. Povirk, Brian J. Andonian, Joseph J. Torres, Kenneth G. Walega
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Publication number: 20110022279Abstract: A method for controlling a clutch of an electronic locking differential for a vehicle includes determining either that a speed of the vehicle is less than a reference speed or that a desired state of the clutch is a disengaged state, determining that an angular displacement of a steering wheel from a centered position is less than a first reference angle, and disengaging the clutch.Type: ApplicationFiled: July 23, 2009Publication date: January 27, 2011Inventors: Jacob M. Povirk, John R. Saieg, Gary M. Pietrzyk
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Patent number: 7815026Abstract: A system for controlling a torque converter of an automatic transmission driven by a power source, the system including a torque converter an impeller, a turbine driveably connected to a transmission input and able to be driven hydrokinetically by the impeller, a stator, an impeller clutch for alternately engaging and disengaging a drive connection between the impeller and the power source, a source of converter charge pressure communicating with the impeller clutch, a source of converter discharge pressure communicating with the impeller clutch, a magnitude of differential force due to charge pressure and discharge pressure across the impeller clutch alternately producing operating multiple operating states of the impeller clutch, and a orifice having a variable fluid flow area for changing a magnitude of converter discharge pressure.Type: GrantFiled: March 15, 2007Date of Patent: October 19, 2010Assignee: Ford Global Technologies, LLCInventors: Jacob M. Povirk, William R. Simpson
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Publication number: 20100256879Abstract: A method for controlling a locking differential includes determining a temperature-dependent reference voltage at which a coil locks the differentia, determining an electric potential of a battery, using the battery to energize the coil and lock the differential, if the electric potential is equal to or greater than the reference voltage for a current temperature, and maintaining the differential unlocked, if the electric potential is less than the reference voltage.Type: ApplicationFiled: April 7, 2009Publication date: October 7, 2010Inventors: Jacob M. Povirk, Joseph J. Torres, Brian J. Andonian, Jihong Guo, Patrick Meloche, Kenneth G. Walega