Patents by Inventor Ryan M. Jenness
Ryan M. Jenness 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: 10495214Abstract: A hydraulic control system for a transmission of a motor vehicle includes a source of pressurized hydraulic fluid that communicates with an analog electronic transmission range selection (ETRS) subsystem or a manual valve. The ETRS subsystem includes an ETRS valve, a park servo, a park mechanism, a mode valve, and a plurality of solenoids. The ETRS and manual valve communicate with a clutch actuator subsystem that engages a one-way clutch and six clutches/brakes.Type: GrantFiled: August 30, 2017Date of Patent: December 3, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Todd R. Berger, Kelly Eber, Steven P. Moorman, Christopher G. Benson, Cheol W. Kim, Ryan M. Jenness, Christopher M. Kaminski
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Patent number: 10495223Abstract: A parking actuator assembly for an automatic transmission includes a park pawl that is rotatable between an in-park position and an out-of-park position. An actuator assembly is configured to be moved between a park-actuated position and a park-disengaged position, the actuator assembly being configured to rotate the park pawl into the in-park position when the actuator is moved into the park-actuated position. An actuator rod is slidably coupled to the actuator assembly. In some forms, the actuator assembly remains in contact with the park pawl from the park-actuated position to the park-disengaged position. In some forms, at least one latching solenoid is included, and the latching solenoid(s) as well as a park actuator motor may be disposed within a main transmission system. A verification sensor may be included to determine the position.Type: GrantFiled: January 11, 2018Date of Patent: December 3, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Dumitru Puiu, Vijay A. Neelakantan, Gurdeep Singh, Ryan M. Jenness
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Publication number: 20190211928Abstract: A parking actuator assembly for an automatic transmission includes a park pawl that is rotatable between an in-park position and an out-of-park position. An actuator assembly is configured to be moved between a park-actuated position and a park-disengaged position, the actuator assembly being configured to rotate the park pawl into the in-park position when the actuator is moved into the park-actuated position. An actuator rod is slidably coupled to the actuator assembly. In some forms, the actuator assembly remains in contact with the park pawl from the park-actuated position to the park-disengaged position. In some forms, at least one latching solenoid is included, and the latching solenoid(s) as well as a park actuator motor may be disposed within a main transmission system. A verification sensor may be included to determine the position.Type: ApplicationFiled: January 11, 2018Publication date: July 11, 2019Inventors: Dumitru Puiu, Vijay A. Neelakantan, Gurdeep Singh, Ryan M. Jenness
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Publication number: 20190063597Abstract: A hydraulic control system for a transmission of a motor vehicle includes a source of pressurized hydraulic fluid that communicates with an analog electronic transmission range selection (ETRS) subsystem or a manual valve. The ETRS subsystem includes an ETRS valve, a park servo, a park mechanism, a mode valve, and a plurality of solenoids. The ETRS and manual valve communicate with a clutch actuator subsystem that engages a one-way clutch and six clutches/brakes.Type: ApplicationFiled: August 30, 2017Publication date: February 28, 2019Inventors: Todd R. Berger, Kelly Eber, Steven P. Moorman, Christopher G. Benson, Cheol W. Kim, Ryan M. Jenness, Christopher M. Kaminski
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Patent number: 8627739Abstract: A multiple shift fork, single shift rail assembly reduces weight and complexity in manual and dual clutch transmissions. In a first embodiment, a stationary shift rail includes pluralities of detenting recesses and cooperating detent assemblies are mounted on the shift forks. Associated actuators translate the shift forks and synchronizer clutches. In a second embodiment, the detenting recesses reside on the outside surface of the shift forks and the detent assemblies are mounted in the transmission housing. In a third embodiment, one shift fork is slidably mounted on the shift rail and includes an external detent assembly. The shift rail itself translates and includes detenting recesses and a second shift fork connected thereto.Type: GrantFiled: September 15, 2009Date of Patent: January 14, 2014Assignee: GM Global Technology Operations LLCInventors: Brian E. Tooman, Daryl A. Wilton, Patrick S. Portell, Ryan M. Jenness
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Patent number: 8012063Abstract: A pressure assisted park servo assembly for an automatic transmission includes a servo or spool valve which receives pressurized hydraulic fluid from various sources including two solenoid valves and transmission ports. The servo valve controls two flows of pressurized hydraulic fluid to a servo assembly to place the transmission in or release it from park. The improved park servo assembly exhibits enhanced operating speed.Type: GrantFiled: February 12, 2008Date of Patent: September 6, 2011Assignee: GM Global Technology Operations LLCInventors: Stephen W. Powell, Mark A. Vernacchia, Brian W. Whitmarsh, Ryan M. Jenness
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Publication number: 20110061487Abstract: A multiple shift fork, single shift rail assembly reduces weight and complexity in manual and dual clutch transmissions. In a first embodiment, a stationary shift rail includes pluralities of detenting recesses and cooperating detent assemblies are mounted on the shift forks. Associated actuators translate the shift forks and synchronizer clutches. In a second embodiment, the detenting recesses reside on the outside surface of the shift forks and the detent assemblies are mounted in the transmission housing. In a third embodiment, one shift fork is slidably mounted on the shift rail and includes an external detent assembly. The shift rail itself translates and includes detenting recesses and a second shift fork connected thereto.Type: ApplicationFiled: September 15, 2009Publication date: March 17, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Brian E. Tooman, Daryl A. Wilton, Patrick S. Portell, Ryan M. Jenness
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Patent number: 7490528Abstract: An electronic transmission range selection (ETRS) system for shifting a transmission range of a transmission includes an electro-mechanical park inhibit assembly that operates to disallow the ETRS system from shifting from an Out-of-Park mode to a Park mode under certain circumstances. The park inhibit assembly includes a follower having a recess defined thereon and slidably disposed within a follower bore. In one embodiment a selectively energizable solenoid assembly is mounted substantially perpendicular to the follower and operates to bias a ball into the recess when energized thereby locking the ETRS system in the Out-of-Park mode. In another embodiment the park inhibit assembly includes a selectively energizable motor assembly mounted substantially perpendicular to the follower. The motor assembly operates to enforce the Park and Out-of-Park mode of the ETRS system.Type: GrantFiled: February 13, 2006Date of Patent: February 17, 2009Assignee: GM Global Technology Operations, Inc.Inventors: Jack P. Koski, Ryan M. Jenness, Stephen W. Powell, Mark A. Vernacchia
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Publication number: 20080214350Abstract: A pressure assisted park servo assembly for an automatic transmission includes a servo or spool valve which receives pressurized hydraulic fluid from various sources including two solenoid valves and transmission ports. The servo valve controls two flows of pressurized hydraulic fluid to a servo assembly to place the transmission in or release it from park. The improved park servo assembly exhibits enhanced operating speed.Type: ApplicationFiled: February 12, 2008Publication date: September 4, 2008Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: STEPHEN W. POWELL, Mark A. Vernacchia, Brian W. Whitmarsh, Ryan M. Jenness
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Patent number: 7082851Abstract: A hydraulic servo assembly includes a piston slidably disposed within a housing and a pin extending from the piston. The pin is interconnected with a servo link rod of the ETRS system. A port enables inlet of hydraulic fluid to induce movement of the piston and the pin from a first position to a second position to pull the servo link rod thereby shifting the transmission range to the out-of-park position. When in the first position the pin biases a forward-reverse enable (FRE) valve of the ETRS system in a first position. When in the second position a bias force of the pin is relieved from the FRE valve enabling the FRE valve to shift to a second position.Type: GrantFiled: June 3, 2003Date of Patent: August 1, 2006Assignee: General Motors CorporationInventors: Brian W. Whitmarsh, Stephen W. Powell, Ryan M. Jenness
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Publication number: 20040244523Abstract: A hydraulic servo assembly includes a piston slidably disposed within a housing and a pin extending from the piston. The pin is interconnected with a servo link rod of the ETRS system. A port enables inlet of hydraulic fluid to induce movement of the piston and the pin from a first position to a second position to pull the servo link rod thereby shifting the transmission range to the out-of-park position. When in the first position the pin biases a forward-reverse enable (FRE) valve of the ETRS system in a first position. When in the second position a bias force of the pin is relieved from the FRE valve enabling the FRE valve to shift to a second position.Type: ApplicationFiled: June 3, 2003Publication date: December 9, 2004Inventors: Brian W. Whitmarsh, Stephen W. Powell, Ryan M. Jenness