Patents by Inventor Elizabeth I. Wooden
Elizabeth I. Wooden 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: 11040611Abstract: A P2 transmission and engine assembly includes a transverse mounted transmission having: a transmission first end and a transmission second end oppositely positioned with respect to the transmission first end; and a transmission gearbox portion having a first cavity positioned at the second end. A torque converter is positioned at the transmission first end. An electric motor is positioned within the first cavity and is rotatably connected to the torque converter using a turbine shaft. A one-way clutch is connected to the turbine shaft and releasably connects the turbine shaft to the torque converter. The one-way clutch when disengaged disconnects the torque converter from the turbine shaft.Type: GrantFiled: August 27, 2019Date of Patent: June 22, 2021Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Edward W. Mellet, James M. Hart, Elizabeth I. Wooden
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Patent number: 10451148Abstract: A transmission is provided having an input member, an output member, at least three planetary gear sets, a plurality of interconnecting members and six torque transmitting mechanisms. The torque transmitting mechanisms include clutches and brakes that are actuatable in combinations of three to establish at least ten forward gear ratios and at least one reverse gear ratio.Type: GrantFiled: April 11, 2017Date of Patent: October 22, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James M. Hart, Elizabeth I. Wooden, Scott H. Wittkopp
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Patent number: 10337589Abstract: A transmission is provided having an input member, an output member, at least three planetary gear sets, a plurality of interconnecting members and six torque transmitting mechanisms. The torque transmitting mechanisms include clutches and brakes that are actuatable in combinations of three to establish at least ten forward gear ratios and at least one reverse gear ratio.Type: GrantFiled: April 11, 2017Date of Patent: July 2, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James M. Hart, Elizabeth I. Wooden, Scott H. Wittkopp
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Patent number: 10018251Abstract: A transmission is connectable to an input member and includes an output transfer gear, first and second transmission input shaft members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.Type: GrantFiled: November 9, 2015Date of Patent: July 10, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Tejinder Singh, Daryl A. Wilton, Elizabeth I. Wooden
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Publication number: 20170219063Abstract: A transmission is provided having an input member, an output member, at least three planetary gear sets, a plurality of interconnecting members and six torque transmitting mechanisms. The torque transmitting mechanisms include clutches and brakes that are actuatable in combinations of three to establish at least ten forward gear ratios and at least one reverse gear ratio.Type: ApplicationFiled: April 11, 2017Publication date: August 3, 2017Inventors: JAMES M. HART, ELIZABETH I. WOODEN, SCOTT H. WITTKOPP
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Publication number: 20170219060Abstract: A transmission is provided having an input member, an output member, at least three planetary gear sets, a plurality of interconnecting members and six torque transmitting mechanisms. The torque transmitting mechanisms include clutches and brakes that are actuatable in combinations of three to establish at least ten forward gear ratios and at least one reverse gear ratio.Type: ApplicationFiled: April 11, 2017Publication date: August 3, 2017Inventors: JAMES M. HART, ELIZABETH I. WOODEN, SCOTT H. WITTKOPP
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Patent number: 9651118Abstract: A transmission is provided having an input member, an output member, at least three planetary gear sets, a plurality of interconnecting members and six torque transmitting mechanisms. The torque transmitting mechanisms include clutches and brakes that are actuatable in combinations of three to establish at least ten forward gear ratios and at least one reverse gear ratio.Type: GrantFiled: March 6, 2015Date of Patent: May 16, 2017Assignee: GM Global Technology Operations, LLCInventors: James M. Hart, Elizabeth I. Wooden, Scott H. Wittkopp
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Publication number: 20170130805Abstract: A transmission is connectable to an input member and includes an output transfer gear, first and second transmission input shaft members, first and second countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.Type: ApplicationFiled: November 9, 2015Publication date: May 11, 2017Inventors: Tejinder Singh, Daryl A. Wilton, Elizabeth I. Wooden
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Patent number: 9644722Abstract: A powertrain for a motor vehicle includes a one mode continuously variable transmission (CVT) and a torque converter connected to a planetary gear set assembly which is connected to a pulley and a chain assembly or other continuously variable unit (CVU). The planetary gear set arrangement generally includes one planetary gear set, one brake and one clutch. The CVU is connected to a final drive unit. The sheaves of the CVU have an involute spline connection.Type: GrantFiled: February 6, 2015Date of Patent: May 9, 2017Assignee: GM Global Technology Operations LLCInventors: Pete R. Garcia, James M. Hart, Edward W. Mellet, Elizabeth I. Wooden, Douglas John Dwenger
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Patent number: 9523396Abstract: A torque transmitting mechanism for a transmission includes a first and a second rotating member, a rotating piston, a stationary piston, and a first bearing. The rotating piston is rotatably connected to the first rotating member and includes a splined end. The stationary piston is disposed in a stationary housing of the transmission. The stationary piston and the stationary housing form a hydraulic fluid piston apply chamber. The first bearing is disposed between the rotating piston and the stationary piston. The splined end of the second rotating member is axially aligned and configured to engage with the splined end of the rotating piston.Type: GrantFiled: December 8, 2014Date of Patent: December 20, 2016Assignee: GM Global Technology Operations, LLCInventor: Elizabeth I. Wooden
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Publication number: 20160160938Abstract: A torque transmitting mechanism for a transmission includes a first and a second rotating member, a rotating piston, a stationary piston, and a first bearing. The rotating piston is rotatably connected to the first rotating member and includes a splined end. The stationary piston is disposed in a stationary housing of the transmission. The stationary piston and the stationary housing form a hydraulic fluid piston apply chamber. The first bearing is disposed between the rotating piston and the stationary piston. The splined end of the second rotating member is axially aligned and configured to engage with the splined end of the rotating piston.Type: ApplicationFiled: December 8, 2014Publication date: June 9, 2016Inventor: Elizabeth I. Wooden
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Publication number: 20150233458Abstract: A powertrain for a motor vehicle includes a one mode continuously variable transmission (CVT) and a torque converter connected to a planetary gear set assembly which is connected to a pulley and a chain assembly or other continuously variable unit (CVU). The planetary gear set arrangement generally includes one planetary gear set, one brake and one clutch. The CVU is connected to a final drive unit. The sheaves of the CVU have an involute spline connection.Type: ApplicationFiled: February 6, 2015Publication date: August 20, 2015Inventors: PETE R. Garcia, James M. Hart, Edward W. Mellet, Elizabeth I. Wooden, Douglas John Dwenger
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Patent number: 8870703Abstract: A transmission is provided having a housing, a plurality of planetary gear sets, a structural member, a sprocket member, an annular drum, a band, and an actuator. The sprocket member is rotationally supported by the structural member. The annular drum is adjacent the structural member and is continuously rotationally coupled with a member of the one of the plurality of planetary gear sets. The band circumscribes the annular drum and includes at least a first position and a second position. In the first position the band is substantially separated from the drum and in the second position the band contacts the drum. The actuator selectively positions the band between at least the first position and the second position to transfer torque between the structural member and the annular drum.Type: GrantFiled: November 19, 2012Date of Patent: October 28, 2014Assignee: GM Global Technology Operations, LLCInventors: James M. Hart, Daryl A. Wilton, Edward W. Mellet, Elizabeth I. Wooden
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Patent number: 8795114Abstract: A transmission includes a first motor/generator having a first rotor that is selectively rotatable about a first axis and a second motor/generator having a second rotor that is selectively rotatable about a second axis. A first planetary gearset and a second planetary gearset each has a respective first planetary member, a respective second planetary member, and a respective third planetary member. One of the members of the first planetary gearset is operatively connected to the first rotor to receive torque therefrom. One of the members of the second planetary gearset is operatively connected to the second rotor to receive torque therefrom.Type: GrantFiled: January 20, 2012Date of Patent: August 5, 2014Assignee: GM Global Technology Operations LLCInventors: Norman Schoenek, Elizabeth I. Wooden, Min-Joong Kim, Shawn H. Swales, Xiaohui Du, Leonid Basin, John Czubay
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Publication number: 20140141926Abstract: A transmission is provided having a housing, a plurality of planetary gear sets, a structural member, a sprocket member, an annular drum, a band, and an actuator. The sprocket member is rotationally supported by the structural member. The annular drum is adjacent the structural member and is continuously rotationally coupled with a member of the one of the plurality of planetary gear sets. The band circumscribes the annular drum and includes at least a first position and a second position. In the first position the band is substantially separated from the drum and in the second position the band contacts the drum. The actuator selectively positions the band between at least the first position and the second position to transfer torque between the structural member and the annular drum.Type: ApplicationFiled: November 19, 2012Publication date: May 22, 2014Applicant: GM Global Technology Operations LLCInventors: James M. Hart, Daryl A. Wilton, Edward W. Mellet, Elizabeth I. Wooden
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Patent number: 8628442Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.Type: GrantFiled: August 28, 2012Date of Patent: January 14, 2014Assignee: GM Global Technology Operations LLCInventors: Patrick S. Portell, John A. Diemer, James M. Hart, Scott H. Wittkopp, Edwin T. Grochowski, Douglas John Dwenger, Elizabeth I. Wooden, Boris Burgman, Clinton E. Carey, Tejinder Singh
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Patent number: 8556758Abstract: A transmission includes a first planetary gearset and a second planetary gearset, each having a respective first planetary member, a respective second planetary member, and a respective third planetary member. The planetary members of the first planetary gearset are coaxially disposed on, and selectively rotatable about, a first axis. The planetary members of the second planetary gearset are coaxially disposed on, and selectively rotatable about, a second axis. An axis transfer mechanism including meshing gears transmits torque between the first and second planetary gearsets.Type: GrantFiled: February 7, 2013Date of Patent: October 15, 2013Assignee: GM Global Technology Operations LLCInventors: Norman Schoenek, Elizabeth I. Wooden, Shawn H Swales
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Patent number: 8496558Abstract: A transmission includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The transmission input member is connected to a dry launch clutch. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices are for example clutches and brakes.Type: GrantFiled: December 7, 2011Date of Patent: July 30, 2013Assignee: GM Global Technology Operations LLCInventors: Scott H. Wittkopp, James M. Hart, Elizabeth I. Wooden, Daryl A. Wilton
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Publication number: 20130190122Abstract: A transmission includes a first motor/generator having a first rotor that is selectively rotatable about a first axis and a second motor/generator having a second rotor that is selectively rotatable about a second axis. A first planetary gearset and a second planetary gearset each has a respective first planetary member, a respective second planetary member, and a respective third planetary member. One of the members of the first planetary gearset is operatively connected to the first rotor to receive torque therefrom. One of the members of the second planetary gearset is operatively connected to the second rotor to receive torque therefrom.Type: ApplicationFiled: January 20, 2012Publication date: July 25, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Norman Schoenek, Elizabeth I. Wooden, Min-Joong Kim, Shawn H, Swales, Xiaohui Du, Leonid Basin, John Czubay
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Patent number: 8460142Abstract: Various embodiments of electrically-variable transmissions have first and second motor-generators, first and second planetary gear sets, and two torque-transmitting mechanisms, including a rotating-type torque-transmitting mechanism and a stationary-type torque-transmitting mechanism. An input member is connected for common rotation with a ring gear of the first planetary gear set. Carrier members of both of the planetary gear sets are connected for common rotation with one another, and with an output member, via one or more radial-extending hub members and an axial-extending member or shaft. The first motor/generator is connected for common rotation with the sun gear of the first planetary gear set. The second motor/generator is connected for common rotation with the sun gear member of the second planetary gear set. In each embodiment, the various components of the transmission are positioned relative to one another to minimize the number and/or size of interconnecting shafts and shells.Type: GrantFiled: April 27, 2009Date of Patent: June 11, 2013Assignee: GM Global Technology Operations LLCInventors: Scott H. Wittkopp, Alan G. Holmes, James M. Hart, Edwin T. Grochowski, Elizabeth I. Wooden