Patents by Inventor Philip C. Lundberg

Philip C. Lundberg 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: 20110028271
    Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of solenoids and valves 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 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: March 12, 2010
    Publication date: February 3, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Brian W. Whitmarsh, Bret M. Olson, Philip C. Lundberg, Wayne B. Vogel
  • Publication number: 20100190606
    Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of solenoids and valves 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 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 10, 2009
    Publication date: July 29, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Robert L. Moses, Bret M. Olson, Philip C. Lundberg
  • Publication number: 20100148099
    Abstract: A valve assembly having a pressure dead band includes a first valve or sleeve slidably disposed within a valve body. A second valve is partially slidably disposed within the first valve and partially slidably disposed in the valve body. A plurality of fluid passages communicate with the valve assembly and provide a first flow of hydraulic fluid and a second flow of hydraulic fluid. A lower threshold of the pressure dead band is defined by the pressure on the combination of the first area of the first valve and the first area of the second valve required to balance the resultant force developed on the second area of the second valve. An upper threshold of the pressure dead band is defined by the pressure on the first area of the second valve required to balance the resultant force developed on the second area of the second valve.
    Type: Application
    Filed: November 3, 2009
    Publication date: June 17, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Philip C. Lundberg, Bret M. Olson
  • Publication number: 20100071357
    Abstract: An auxiliary pump system for a hybrid powertrain includes a hydraulic accumulator, a hydraulic transformer, a plurality of control devices, a sump, and a plurality of fluid flow paths. The accumulator is charged by a high flow, high pressure hydraulic fluid by opening a first of the control devices and closing a second of the control devices. The accumulator is discharged by closing the first of the control devices and opening the second of the control devices. A high pressure, low flow hydraulic fluid is communicated from the accumulator to the hydraulic transformer. The hydraulic transformer converts the high pressure, low flow hydraulic fluid into a high flow, low pressure hydraulic fluid that is employed by systems within the hybrid powertrain.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 25, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Philip C. Lundberg, John C. Schultz, Vijay A. Neelakantan
  • Publication number: 20100072408
    Abstract: A multiplexing valve assembly includes a valve slidably disposed within a valve body, hydraulic module, or packaged in a stand alone solenoid cartridge. A plurality of fluid passages communicate with the multiplexing valve assembly. The valve includes a plurality of lands. Radial fluid passages disposed in the lands and a longitudinal fluid passage disposed in the valve allow hydraulic fluid within the fluid passages to be selectively exhausted via a single exhaust port. Movement of the valve within the valve body directs hydraulic fluid from one or more input fluid passages to a plurality of outlet fluid passages. The valve is actuated directly by an armature in the solenoid directly acting on the valve or through hydraulic fluid controlled by a solenoid.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 25, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Bret M. Olson, Philip C. Lundberg