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).

  • Publication number: 20120145504
    Abstract: 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: Application
    Filed: October 10, 2011
    Publication date: June 14, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Christopher Jay Weingartz
  • Publication number: 20120145503
    Abstract: 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: Application
    Filed: October 10, 2011
    Publication date: June 14, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATINONS LLC
    Inventors: Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Christopher Jay Weingartz
  • Publication number: 20120145502
    Abstract: 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: Application
    Filed: October 10, 2011
    Publication date: June 14, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Christopher Jay Weingartz
  • Publication number: 20120137806
    Abstract: 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: Application
    Filed: June 30, 2011
    Publication date: June 7, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Steven P. Moorman, Philip C. Lundberg, John R. Czoykowski, Bret M. Olson, Chinar S. Ghike, James D. Hendrickson, Christopher Jay Weingartz
  • Publication number: 20120138408
    Abstract: 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: Application
    Filed: June 30, 2011
    Publication date: June 7, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: STEVEN P. MOORMAN, PHILIP C. LUNDBERG, JOHN R. CZOYKOWSKI, BRET M. OLSON, CHINAR S. GHIKE, JAMES D. HENDRICKSON, CHRISTOPHER JAY WEINGARTZ
  • Publication number: 20120138413
    Abstract: 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: Application
    Filed: September 9, 2011
    Publication date: June 7, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Steven P. Moorman, Christopher Jay Weingartz
  • Publication number: 20120138406
    Abstract: 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: Application
    Filed: October 10, 2011
    Publication date: June 7, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Philip C. Lundberg, Steven P. Moorman, Bret M. Olson, John R. Czoykowski, Jonathan Hottenstein
  • Patent number: 8075441
    Abstract: 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: Grant
    Filed: January 28, 2009
    Date of Patent: December 13, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: James M. Hart, Scott H. Wittkopp, Clinton E. Carey, Andrew W. Phillips, James B. Borgerson, Steven P. Moorman, Elizabeth I. Wooden, Edwin T. Grochowski
  • Publication number: 20110257857
    Abstract: 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: Application
    Filed: August 4, 2010
    Publication date: October 20, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Christopher Jay Weingartz, Steven P. Moorman, Xuefeng Tim Tao, Chinar S. Ghike, Andreas Gustavsson
  • Publication number: 20110257855
    Abstract: 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: Application
    Filed: August 4, 2010
    Publication date: October 20, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Christopher Jay Weingartz, Steven P. Moorman, Xuefeng Tim Tao, Chinar S. Ghike, Andreas Gustavsson
  • Patent number: 8016577
    Abstract: 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: Grant
    Filed: August 18, 2008
    Date of Patent: September 13, 2011
    Assignee: GM Global Technology Operations LLC
    Inventor: Steven P. Moorman
  • Publication number: 20110197982
    Abstract: 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: Application
    Filed: February 17, 2010
    Publication date: August 18, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Steven P. Moorman, Chinar S. Ghike, John R. Czoykowski
  • Publication number: 20110180364
    Abstract: 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: Application
    Filed: December 21, 2010
    Publication date: July 28, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John R. Czoykowski, Philip C. Lundberg, Steven P. Moorman, Bret M. Olson
  • Publication number: 20110168509
    Abstract: 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: Application
    Filed: December 9, 2010
    Publication date: July 14, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Steven P. Moorman, John R. Czoykowski, Chinar S. Ghike
  • Publication number: 20110167812
    Abstract: 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: Application
    Filed: December 9, 2010
    Publication date: July 14, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Steven P. Moorman
  • Publication number: 20110138956
    Abstract: 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: Application
    Filed: November 18, 2010
    Publication date: June 16, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventor: Steven P. Moorman
  • Publication number: 20110139564
    Abstract: 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: Application
    Filed: November 11, 2010
    Publication date: June 16, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: JOHN R. CZOYKOWSKI, PHILIP C. LUNDBERG, STEVEN P. MOORMAN, BRET M. OLSON
  • Publication number: 20110132711
    Abstract: 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: Application
    Filed: November 11, 2010
    Publication date: June 9, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: John R. Czoykowski, Chinar S. Ghike, James D. Hendrickson, Philip C. Lundberg, Steven P. Moorman, Bret M. Olson
  • Publication number: 20110132716
    Abstract: 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: Application
    Filed: November 11, 2010
    Publication date: June 9, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONAS, INC.
    Inventors: John R. Czoykowski, Chinar S. Ghike, James D. Hendrickson, Philip C. Lundberg, Steven P. Moorman, Bret M. Olson
  • Publication number: 20110118081
    Abstract: 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: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Steven P. Moorman, Peter Donald Bock