Patents by Inventor William Vukovich
William Vukovich 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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Concept for using software/electronics to calibrate the control system for an automatic transmission
Patent number: 8321096Abstract: A software calibration strategy for calibrating solenoid controlled valves and valve systems in an automatic transmission. The strategy includes identifying a characteristic equation for the valve or valve system that is a mathematical relationship between a current applied to the solenoid and the pressure at the output of the valve or valve system. The valve or valve system is coupled to a test stand that depicts the operation of the valve or valve system in the transmission. Current signals are applied to the valve or valve system, and the output pressures are measured to determine coefficients in the equation using a curve fitting function. The coefficients are then stored in a control unit.Type: GrantFiled: October 3, 2008Date of Patent: November 27, 2012Assignee: Borg Warner Inc.Inventors: Eric Christopher Sandstrom, Mark Buchanan, William Vukovich, Melissa Koenig -
Patent number: 7856999Abstract: An automatic transmission having at least one hydraulic valve with flow force compensation. The hydraulic valve includes a valve body having a valve bore and at least one inlet and at least one outlet adapted to provide fluid communication with a source of pressurized hydraulic fluid and a return to the source of pressure. A valve member is slidingly disposed within the valve body that includes at least one valve element having an outer diameter and a metering face. The metering face is adapted to control the flow of pressurized hydraulic fluid between the inlet and the outlet of the valve body. The metering face includes a flow force compensating annular void disposed adjacent to the outer diameter that is defined by a lead angle ? measured between the outer surface and a line intersecting the outer surface and tangential to the annular void.Type: GrantFiled: October 6, 2008Date of Patent: December 28, 2010Assignee: BorgWarner Inc.Inventors: Xiaoning Xiang, Melissa Koenig, William Vukovich, David C. Mills
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Patent number: 7819325Abstract: Calibration data transfer systems are described for use in conjunction with, for example, automotive components such as but not limited to transmission systems. The systems employ devices, such as but not limited to barcode systems such as 2D barcodes, radio frequency identification devices (RFID), digital data storage systems such as CD-ROM's, and the like, to record and/or store data thereon. The data can include information, such as but not limited to solenoid calibration curve coefficients and the like. The data contained on these devices can be accessed by a data retrieval system, such as a scanner, and transferred, for example, to a transmission control unit.Type: GrantFiled: August 22, 2005Date of Patent: October 26, 2010Assignee: BorgWarner, Inc.Inventors: Mark Buchanan, William Vukovich, Melissa Koenig
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Concept for using software/electronics to calibrate the control system for an automatic transmission
Publication number: 20090099740Abstract: A software calibration strategy for calibrating solenoid controlled valves and valve systems in an automatic transmission. The strategy includes identifying a characteristic equation for the valve or valve system that is a mathematical relationship between a current applied to the solenoid and the pressure at the output of the valve or valve system. The valve or valve system is coupled to a test stand that depicts the operation of the valve or valve system in the transmission. Current signals are applied to the valve or valve system, and the output pressures are measured to determine coefficients in the equation using a curve fitting function. The coefficients are then stored in a control unit.Type: ApplicationFiled: October 3, 2008Publication date: April 16, 2009Applicant: BorgWarmer Inc.Inventors: Eric Christopher Sandstrom, Mark Buchanan, William Vukovich, Melissa Koenig -
Publication number: 20090071545Abstract: An automatic transmission having at least one hydraulic valve with flow force compensation. The hydraulic valve includes a valve body having a valve bore and at least one inlet and at least one outlet adapted to provide fluid communication with a source of pressurized hydraulic fluid and a return to the source of pressure. A valve member is slidingly disposed within the valve body that includes at least one valve element having an outer diameter and a metering face. The metering face is adapted to control the flow of pressurized hydraulic fluid between the inlet and the outlet of the valve body. The metering face includes a flow force compensating annular void disposed adjacent to the outer diameter that is defined by a lead angle ? measured between the outer surface and a line intersecting the outer surface and tangential to the annular void.Type: ApplicationFiled: October 6, 2008Publication date: March 19, 2009Inventors: Xiaoning Xiang, Melissa Koenig, William Vukovich
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Patent number: 7431043Abstract: An automatic transmission having a pressure regulator with flow force compensation. The pressure regulator includes a valve body having a valve bore and at least one inlet and at least one outlet adapted to provide fluid communication with a source of pressurized hydraulic fluid and a return to the source of pressure. A valve member is slidingly disposed within the valve body that includes at least one valve element having an outer diameter and a metering face. The metering face is adapted to control the flow of pressurized hydraulic fluid between the inlet and the outlet of the valve body. The metering face includes a flow force compensating annular void disposed adjacent to the outer diameter that is defined by a lead angle ? measured between the outer surface and a line intersecting the outer surface and tangential to the annular void.Type: GrantFiled: March 17, 2005Date of Patent: October 7, 2008Assignee: Borgwarner Inc.Inventors: Xiaoning Xiang, Melissa Koenig, William Vukovich
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Patent number: 7155993Abstract: A dual clutch transmission for a motor vehicle having a synchronizer actuation interlock system includes two input shafts, a counter shaft, and a plurality of gear sets rotatively disposed on the shafts. The gear sets are adapted to be operatively engaged to and disengaged from their respective shafts. A plurality of synchronizers are disposed about the gear sets and the synchronizers are adapted to operatively engage and disengage the gear sets to and from their respective shafts. A plurality of hydraulically actuated shift actuators are each operatively connected to one of the plurality of synchronizers. Each shift actuator is adapted to cause its respective synchronizer to engage and disengage its respective gear sets to and from their respective shaft and further adapted to provide a hydraulic interlock that prevents an associated shift actuator on the same shaft from hydraulically actuating when the shift actuator is already engaged.Type: GrantFiled: November 15, 2004Date of Patent: January 2, 2007Assignee: BorgWarner Inc.Inventors: Melissa Koenig, Graham Annear, William Vukovich
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Publication number: 20060207655Abstract: An automatic transmission having a pressure regulator with flow force compensation. The pressure regulator includes a valve body having a valve bore and at least one inlet and at least one outlet adapted to provide fluid communication with a source of pressurized hydraulic fluid and a return to the source of pressure. A valve member is slidingly disposed within the valve body that includes at least one valve element having an outer diameter and a metering face. The metering face is adapted to control the flow of pressurized hydraulic fluid between the inlet and the outlet of the valve body. The metering face includes a flow force compensating annular void disposed adjacent to the outer diameter that is defined by a lead angle ? measured between the outer surface and a line intersecting the outer surface and tangential to the annular void.Type: ApplicationFiled: March 17, 2005Publication date: September 21, 2006Inventors: Xiaoning Xiang, Melissa Koenig, William Vukovich
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Publication number: 20060101933Abstract: A dual clutch transmission for a motor vehicle having a synchronizer actuation interlock system includes two input shafts, a counter shaft, and a plurality of gear sets rotatively disposed on the shafts. The gear sets are adapted to be operatively engaged to and disengaged from their respective shafts. A plurality of synchronizers are disposed about the gear sets and the synchronizers are adapted to operatively engage and disengage the gear sets to and from their respective shafts. A plurality of hydraulically actuated shift actuators are each operatively connected to one of the plurality of synchronizers. Each shift actuator is adapted to cause its respective synchronizer to engage and disengage its respective gear sets to and from their respective shaft and further adapted to provide a hydraulic interlock that prevents an associated shift actuator on the same shaft from hydraulically actuating when the shift actuator is already engaged.Type: ApplicationFiled: November 15, 2004Publication date: May 18, 2006Inventors: Melissa Koenig, Graham Annear, William Vukovich
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Publication number: 20060047397Abstract: Calibration data transfer systems are described for use in conjunction with, for example, automotive components such as but not limited to transmission systems. The systems employ devices, such as but not limited to barcode systems such as 2D barcodes, radio frequency identification devices (RFID), digital data storage systems such as CD-ROM's, and the like, to record and/or store data thereon. The data can include information, such as but not limited to solenoid calibration curve coefficients and the like. The data contained on these devices can be accessed by a data retrieval system, such as a scanner, and transferred, for example, to a transmission control unit.Type: ApplicationFiled: August 22, 2005Publication date: March 2, 2006Applicant: BorgWarner Inc.Inventors: Mark Buchanan, William Vukovich, Melissa Koenig
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Patent number: 6909955Abstract: A method of controlling the timing of the shift events of a dual clutch transmission that includes the steps of sensing the current output speed of the transmission, determining the time required to complete each possible shift event within the transmission, and determining an output speed modification value for each possible shift event. The method also includes the steps of determining a modified shift point output speed for each possible shift event by summing the determined output speed modification value with a predetermined shift pattern output speed, and commanding the shift when the current output speed reaches the determined modified shift point output speed.Type: GrantFiled: November 26, 2003Date of Patent: June 21, 2005Assignee: BorgWarner, Inc.Inventors: William Vukovich, Melissa Koenig, Artur Wirch
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Publication number: 20050086803Abstract: A partial assembly process for a vane-type cam phaser. A pulley/sprocket is loaded onto a first camshaft-shaped fixture with a cam nose extending beyond the length of an actual cam nose such that a phaser rotor containing a locking bolt, when mounted onto the cam nose, is displaced axially from the pulley/sprocket by an amount sufficient to set the axial engagement of the bolt upon final assembly. A stator is loaded onto the pulley/sprocket and is rotated clockwise until it contacts the rotor, thereby removing all rotational and radial lash from the system. One or more axial holes are bored through the pulley/sprocket and stator and a locking pin such as a roll pin is inserted to permanently pin the stator to the pulley/sprocket.Type: ApplicationFiled: November 12, 2004Publication date: April 28, 2005Inventors: Emily Foster, William Vukovich, Donald Truszkowski, Mark Lemieux, Joel Lemieux
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Patent number: 6883655Abstract: A variable torsional damper rotatably supported for translating torque between a prime mover and the input of a transmission. The variable torsional damper includes a torque input member operatively connected for rotation with the power take off of a prime mover, an output member operatively connected for rotation with the input to a transmission and a plurality of damping members interposed between the input member and the output member. The damping members act to translate torque between the input member and the output member to dampen torsional forces generated between the prime mover and the transmission. A magneto-rheological damper assembly is disposed in parallel with the damping members and is adapted to operatively vary the hysteresis between the input member and the output member of the variable torsional damper.Type: GrantFiled: September 19, 2003Date of Patent: April 26, 2005Assignee: BorgWarner, Inc.Inventors: Brian K. Stefina, William Vukovich
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Publication number: 20050061601Abstract: A variable torsional damper rotatably supported for translating torque between a prime mover and the input of a transmission. The variable torsional damper includes a torque input member operatively connected for rotation with the power take off of a prime mover, an output member operatively connected for rotation with the input to a transmission and a plurality of damping members interposed between the input member and the output member. The damping members act to translate torque between the input member and the output member to dampen torsional forces generated between the prime mover and the transmission. A magneto-rheological damper assembly is disposed in parallel with the damping members and is adapted to operatively vary the hysteresis between the input member and the output member of the variable torsional damper.Type: ApplicationFiled: September 19, 2003Publication date: March 24, 2005Inventors: Brian Stefina, William Vukovich
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Publication number: 20040172184Abstract: A method of controlling the timing of the shift events of a dual clutch transmission that includes the steps of sensing the current output speed of the transmission, determining the time required to complete each possible shift event within the transmission, and determining an output speed modification value for each possible shift event. The method also includes the steps of determining a modified shift point output speed for each possible shift event by summing the determined output speed modification value with a predetermined shift pattern output speed, and commanding the shift when the current output speed reaches the determined modified shift point output speed.Type: ApplicationFiled: November 26, 2003Publication date: September 2, 2004Inventors: William Vukovich, Melissa Koenig, Artur Wirch
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Patent number: 6685437Abstract: A hydraulic transmission pump assembly includes a pump adapted to provide fluid under pressure to predetermined components in a transmission, an electric motor operatively coupled to the pump, and a line pressure control device in electrical communication with the electric motor. The line pressure control device is operable to control the electric motor as to cause it to drive the pump when engine speeds are below a predetermined level such that the pump provides fluid at a predetermined volume and pressure to the transmission during this operating condition. A differential gear assembly is also included that is interposed between an engine and the electric motor, the differential gear assembly acting to drive both the pump and the electric motor when engine speeds are above the predetermined level such that the pump provides fluid at a predetermined volume and pressure to the transmission and the electric motor provides generated electricity.Type: GrantFiled: September 21, 2001Date of Patent: February 3, 2004Assignee: BorgWarner, Inc.Inventors: Melissa Koenig, William Vukovich
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Patent number: 6647816Abstract: A synchronizer assembly for a vehicle transmission, where the synchronizer assembly is electrically actuated during a shift. The assembly includes a sleeve having an inner surface and an outer surface. A rotor is rotatably mounted to the outer surface of the sleeve and a shift collar is axially mounted to the inner surface of the sleeve. The rotor is threadably coupled to the shift collar so that when the rotor rotates, the shift collar moves in an axial direction relative to the sleeve. An armature coil is electrically coupled to the rotor to cause it to rotate. Keys are rigidly secured to the shift collar to maintain the orientation of the shift collar while it moves. The shift collar locks a shift gear to the transmission output shaft during a shift.Type: GrantFiled: April 25, 2002Date of Patent: November 18, 2003Assignee: BorgWarner Inc.Inventors: William Vukovich, Melissa Koenig, R. Keith Martin
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Patent number: 6644939Abstract: A hydraulic transmission pump assembly including a pump, an electric motor operatively coupled to the pump, and a differential gear assembly interposed between the two. The differential gear assembly acts to divide engine torque between the pump and the electric motor at engine speeds above a predetermined level thereby providing fluid under pressure to the transmission and driving the electric motor to generate electricity; the electric motor also being operable to drive the pump at engine speeds below the predetermined level thereby providing fluid under pressure to the transmission during this operating condition.Type: GrantFiled: August 17, 2001Date of Patent: November 11, 2003Assignee: BorgWarner, Inc.Inventors: William Vukovich, Mark R. Buchanan
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Publication number: 20030200829Abstract: A synchronizer assembly for a vehicle transmission, where the synchronizer assembly is electrically actuated during a shift. The assembly includes a sleeve having an inner surface and an outer surface. A rotor is rotably mounted to the outer surface of the sleeve and a shift collar is axially mounted to the inner surface of the sleeve. The rotor is threadably coupled to the shift collar so that when the rotor rotates, the shift collar moves in an axial direction relative to the sleeve. An armature coil is electrically coupled to the rotor to cause it to rotate. Keys are rigidly secured to the shift collar to maintain the orientation of the shift collar while it moves. The shift collar locks a shift gear to the transmission output shaft during a shift.Type: ApplicationFiled: April 25, 2002Publication date: October 30, 2003Inventors: William Vukovich, Melissa Koenig, R. Keith Martin
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Patent number: 6634866Abstract: A hydraulic transmission pump assembly adapted to provide fluid under pressure to predetermined components in a transmission including a one-way clutch assembly operatively coupled to the pump and an electric motor operatively coupled to the one-way clutch. The one-way clutch is operatively connected to an engine to provide motive power the pump and the electric motor at engine speeds above a predetermined level thereby providing fluid under pressure to the transmission and driving the electric motor to generate electricity. The electric motor is operable to drive the pump at engine speeds below the predetermined level to provide fluid under pressure to the transmission during this operating condition.Type: GrantFiled: August 17, 2001Date of Patent: October 21, 2003Assignee: BorgWarner, Inc.Inventors: William Vukovich, Mark R. Buchanan