Patents by Inventor Steven P. Moorman
Steven P. Moorman 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: 20120145504Abstract: A hydraulic control system and method for controlling a dual clutch transmission includes a plurality of pressure and flow control devices and logic valve assemblies in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: October 10, 2011Publication date: June 14, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Christopher Jay Weingartz
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Publication number: 20120145503Abstract: A hydraulic control system and method for controlling a dual clutch transmission includes a plurality of pressure and flow control devices and logic valve assemblies in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: October 10, 2011Publication date: June 14, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATINONS LLCInventors: Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Christopher Jay Weingartz
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Publication number: 20120145502Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of pressure and flow control devices and logic valve assemblies in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: October 10, 2011Publication date: June 14, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Christopher Jay Weingartz
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Publication number: 20120137806Abstract: A method of controlling a hydraulic control system for a dual clutch transmission includes controlling a plurality of pressure and flow control devices in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: June 30, 2011Publication date: June 7, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Chinar S. Ghike, James D. Hendrickson, Christopher Jay Weingartz
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Publication number: 20120138408Abstract: A method of controlling a hydraulic control system for a dual clutch transmission includes controlling a plurality of pressure and flow control devices in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: June 30, 2011Publication date: June 7, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: STEVEN P. MOORMAN, PHILIP C. LUNDBERG, JOHN R. CZOYKOWSKI, BRET M. OLSON, CHINAR S. GHIKE, JAMES D. HENDRICKSON, CHRISTOPHER JAY WEINGARTZ
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Publication number: 20120138413Abstract: The present invention provides a method of operating an electro-hydraulic control system for a dual clutch transmission having seven forward speeds or gear ratios and reverse. The control system includes an oil delivery subsystem, a clutch control subsystem and a synchronizer control subsystem. All three subsystems are under the control of a transmission control module. The method of operation includes gathering data from various shaft speed, clutch position and shift actuator position sensors and utilizing pressure control (PCS) and flow control (FCS) solenoid valves and a logic valve to pre-stage and engage (and disengage) hydraulic shift actuators associated with a requested and current gear and to sequentially engage one of a pair of input clutches.Type: ApplicationFiled: September 9, 2011Publication date: June 7, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Steven P. Moorman, Christopher Jay Weingartz
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Publication number: 20120138406Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of pressure and flow control devices and logic valve assemblies in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: October 10, 2011Publication date: June 7, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Philip C. Lundberg, Steven P. Moorman, Bret M. Olson, John R. Czoykowski, Jonathan Hottenstein
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Patent number: 8075441Abstract: 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 shaft, output shaft and other coupling members.Type: GrantFiled: January 28, 2009Date of Patent: December 13, 2011Assignee: GM Global Technology Operations LLCInventors: James M. Hart, Scott H. Wittkopp, Clinton E. Carey, Andrew W. Phillips, James B. Borgerson, Steven P. Moorman, Elizabeth I. Wooden, Edwin T. Grochowski
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Publication number: 20110257857Abstract: A control system includes a pressure control solenoid and a flow control solenoid having an input in fluid communication with the pressure control solenoid. A piston adjusts a position of a shift fork and includes a first area in fluid communication with the pressure control solenoid and a second area in fluid communication with the flow control solenoid. A fork sensor senses a position of a shift fork. A slip sensing module estimates slip acceleration between an input shaft and a gear. A flow determining module generates a flow command for the flow control solenoid. A sync control module determines a slip acceleration profile including an estimated slip acceleration, adjusts the estimated slip acceleration based on the measured slip acceleration, and generates a pressure command for the pressure control solenoid based on the adjusted slip acceleration.Type: ApplicationFiled: August 4, 2010Publication date: October 20, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Christopher Jay Weingartz, Steven P. Moorman, Xuefeng Tim Tao, Chinar S. Ghike, Andreas Gustavsson
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Publication number: 20110257855Abstract: A control system includes a pressure control solenoid and a flow control solenoid having an input in fluid communication with the pressure control solenoid. A piston adjusts a position of a shift fork and includes a first area in fluid communication with the pressure control solenoid and a second area in fluid communication with the flow control solenoid. A fork sensor senses a position of a shift fork. A flow determining module determines a fork velocity for the shift fork, adjusts the fork velocity to generate an adjusted fork velocity based on the position, and generates a flow command for the flow control solenoid based on the adjusted fork velocity. A pressure determining module generates a pressure command for the pressure control solenoid. The shift fork is at least one of moved from a sync position to an engaged position and from an engaged position to a neutral position.Type: ApplicationFiled: August 4, 2010Publication date: October 20, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Christopher Jay Weingartz, Steven P. Moorman, Xuefeng Tim Tao, Chinar S. Ghike, Andreas Gustavsson
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Patent number: 8016577Abstract: A self-priming vane pump includes a cylindrical rotor disposed in a cavity in a housing including inlet and outlet ports. The rotor defines a plurality of axially extending slots which each receive one of a like plurality of vanes. A garter spring or similar resilient annulus is disposed within the rotor and provides a radially outwardly directed force on the vanes which maintains their contact with the cavity walls during pump start-up and rapidly self-primes the pump. The spring or annulus rests against a shoulder within the hollow rotor and is retained therein by a pressed in collar.Type: GrantFiled: August 18, 2008Date of Patent: September 13, 2011Assignee: GM Global Technology Operations LLCInventor: Steven P. Moorman
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Publication number: 20110197982Abstract: A hydraulic control system for a transmission includes a first source of pressurized hydraulic fluid, a second source of pressurized hydraulic fluid, a lubrication subsystem for communicating a pressurized hydraulic fluid through the transmission, and a fluid control device in communication with the first source of pressurized hydraulic fluid. A lubrication regulation valve is in communication with the first and second sources of pressurized hydraulic fluid, the fluid control device, and the lubrication subsystem.Type: ApplicationFiled: February 17, 2010Publication date: August 18, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Steven P. Moorman, Chinar S. Ghike, John R. Czoykowski
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Publication number: 20110180364Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of pressure and flow control devices and logic valve assemblies in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: December 21, 2010Publication date: July 28, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: John R. Czoykowski, Philip C. Lundberg, Steven P. Moorman, Bret M. Olson
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Publication number: 20110168509Abstract: A hydraulic control system for a transmission includes a first source of pressurized hydraulic fluid for providing a first flow of hydraulic fluid, a second source of pressurized hydraulic fluid for providing a second flow of hydraulic fluid, and a torque converter control subsystem for controlling a torque converter and a torque converter clutch. The torque converter control subsystem includes a torque converter control valve and a solenoid. The solenoid is multiplexed to the torque converter control valve and the torque converter clutch. The torque converter control valve is operable to control a flow of hydraulic fluid to the torque converter and to other subsystems within the hydraulic control system.Type: ApplicationFiled: December 9, 2010Publication date: July 14, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Steven P. Moorman, John R. Czoykowski, Chinar S. Ghike
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Publication number: 20110167812Abstract: A hydraulic control system for a transmission includes a source of pressurized hydraulic fluid that communicates with an electronic transmission range selection (ETRS) subsystem. The ETRS subsystem includes an ETRS valve, a park mechanism, first and second mode valve assemblies, a latch valve assembly, and a plurality of solenoids. The ETRS subsystem is configured to provide desired operating conditions during a plurality of potential failure conditions.Type: ApplicationFiled: December 9, 2010Publication date: July 14, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Steven P. Moorman
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Publication number: 20110138956Abstract: A hydraulic control system for a dual clutch transmission includes a source of pressurized hydraulic fluid, first and second actuator control devices in downstream fluid communication with the source of pressurized hydraulic fluid, and first and second clutch control devices in downstream fluid communication with the source of pressurized hydraulic fluid. A valve is in downstream fluid communication with the first and second actuator control devices. Selective activation of combinations of the control devices allows for a pressurized fluid to engage the dual clutch and an actuator in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: November 18, 2010Publication date: June 16, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: Steven P. Moorman
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Publication number: 20110139564Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of pressure and flow control devices and logic valve assemblies in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: November 11, 2010Publication date: June 16, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: JOHN R. CZOYKOWSKI, PHILIP C. LUNDBERG, STEVEN P. MOORMAN, BRET M. OLSON
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Publication number: 20110132711Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of pressure and flow control devices in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: November 11, 2010Publication date: June 9, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: John R. Czoykowski, Chinar S. Ghike, James D. Hendrickson, Philip C. Lundberg, Steven P. Moorman, Bret M. Olson
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Publication number: 20110132716Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of pressure and flow control devices in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.Type: ApplicationFiled: November 11, 2010Publication date: June 9, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONAS, INC.Inventors: John R. Czoykowski, Chinar S. Ghike, James D. Hendrickson, Philip C. Lundberg, Steven P. Moorman, Bret M. Olson
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Publication number: 20110118081Abstract: A hydraulic control system for controlling a transmission includes an accumulator, a plurality of control devices, and a plurality of valves. The accumulator provides pressurized hydraulic fluid to a pressure control subsystem during an engine restart. The plurality of control devices includes solenoids and one way ball check valves. The plurality of valves include compensator feed valves, relay valves, and mode valves.Type: ApplicationFiled: November 13, 2009Publication date: May 19, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Steven P. Moorman, Peter Donald Bock