Patents by Inventor Fred C. Porter

Fred C. Porter 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).

  • Patent number: 7878933
    Abstract: A power transfer assembly for use in a motor vehicle and having a hydraulic coupling operable to transfer drive torque to a driveline in response to slip. The hydraulic coupling includes a transfer clutch, a clutch operator for engaging the transfer clutch, a fluid actuation system including a fluid pump for controlling movement of the clutch operator, and a magnetorheological pump clutch capable of selectively shifting the fluid pump between operative and inoperative states.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: February 1, 2011
    Assignee: MAGNA Powertrain USA, Inc.
    Inventors: Fred C. Porter, Todd Ekonen, Thomas C. Bowen
  • Publication number: 20090258751
    Abstract: A power transfer assembly for use in a motor vehicle and having a hydraulic coupling operable to transfer drive torque to a driveline in response to slip. The hydraulic coupling includes a transfer clutch, a clutch operator for engaging the transfer clutch, a fluid actuation system including a fluid pump for controlling movement of the clutch operator, and a magnetorheological pump clutch capable of selectively shifting the fluid pump between operative and inoperative states.
    Type: Application
    Filed: June 25, 2009
    Publication date: October 15, 2009
    Applicant: MAGNA POWERTRAIN USA, INC.
    Inventors: Fred C. Porter, Todd Ekonen, Thomas C. Bowen
  • Patent number: 7568568
    Abstract: A power transfer assembly for use in a motor vehicle and having a hydraulic coupling operable to transfer drive torque to a driveline in response to slip. The hydraulic coupling includes a transfer clutch, a clutch operator for engaging the transfer clutch, a fluid actuation system including a fluid pump for controlling movement of the clutch operator, and a magnetorheological pump clutch capable of selectively shifting the fluid pump between operative and inoperative states.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: August 4, 2009
    Assignee: Magna Powertrain USA, Inc.
    Inventors: Fred C. Porter, Todd Ekonen, Thomas C. Bowen
  • Patent number: 7395893
    Abstract: A hybrid drive system for a four-wheel drive system arranged to supply motive power to a primary output shaft of a transfer case from an internal combustion engine and to a secondary output shaft from an electric motor/generator. The transfer case is comprised of a planetary gearset having an input driven by the motor/generator and an output directing drive torque to the secondary drivelines. This hybrid drive arrangement permits use of a modified transfer case in place of a conventional transfer case in a traditional four-wheel drive driveline.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: July 8, 2008
    Assignee: Magna Powertrain USA, Inc.
    Inventor: Fred C. Porter
  • Patent number: 7125357
    Abstract: A hybrid drive system for a four-wheel drive system arranged to supply motive power to a primary output shaft of a transfer case from an internal combustion engine and to a secondary output shaft from an electric motor/generator. The transfer case is comprised of a planetary gearset having an input driven by the motor/generator and an output directing drive torque to the secondary drivelines. This hybrid drive arrangement permits use of a modified transfer case in place of a conventional transfer case in a traditional four-wheel drive driveline.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: October 24, 2006
    Assignee: Magna Powertrain USA, Inc.
    Inventor: Fred C. Porter
  • Patent number: 7004869
    Abstract: A hybrid drive system for a four-wheel drive system arranged to supply motive power to a primary output shaft of a transfer case from an internal combustion engine and to a secondary output shaft from an electric motor/generator. The transfer case is comprised of a planetary gearset having an input driven by the motor/generator and an output directing drive torque to the secondary drivelines. This hybrid drive arrangement permits use of a modified transfer case in place of a conventional transfer case in a traditional four-wheel drive driveline.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: February 28, 2006
    Assignee: Magna Powertrain, Inc.
    Inventor: Fred C. Porter
  • Patent number: 6966396
    Abstract: A drive axle assembly for an all-wheel drive vehicle includes an adaptively controlled first hydraulic coupling for providing front-to-rear torque transfer control to a first wheel and an adaptively controlled second hydraulic coupling for providing front-to-rear torque control to a second wheel. The drive axle assembly is contained with a common housing and communicates with a traction control system to actively control actuation of the first and second hydraulic couplings based on the operating characteristics of the vehicle as detected by suitable sensors.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: November 22, 2005
    Assignee: Magna Drivetrain of America, Inc.
    Inventors: John R. Forsyth, Fred C. Porter
  • Patent number: 6942055
    Abstract: A drive axle assembly for an all-wheel drive vehicle includes an adaptively controlled first hydraulic coupling for providing front-to-rear torque transfer control to a first wheel and an adaptively controlled second hydraulic coupling for providing front-to-rear torque control to a second wheel. The drive axle assembly is contained with a common housing and communicates with a traction control system to actively control actuation of the first and second hydraulic couplings based on the operating characteristics of the vehicle as detected by suitable sensors.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: September 13, 2005
    Assignee: Magna Drivetrain of America, Inc.
    Inventors: John R. Forsyth, Fred C. Porter
  • Patent number: 6814681
    Abstract: A drive axle assembly for use in an all-wheel drive vehicle having a first hydraulic coupling operable to automatically transfer drive torque to a secondary driveline in response to slip of the primary driveline and a second hydraulic coupling operable to bias torque and limit slip between the wheels of the secondary driveline.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: November 9, 2004
    Assignee: New Venture Gear, Inc.
    Inventor: Fred C. Porter
  • Publication number: 20040129475
    Abstract: A drive axle assembly for an all-wheel drive vehicle includes an adaptively controlled first hydraulic coupling for providing front-to-rear torque transfer control to a first wheel and an adaptively controlled second hydraulic coupling for providing front-to-rear torque control to a second wheel. The drive axle assembly is contained with a common housing and communicates with a traction control system to actively control actuation of the first and second hydraulic couplings based on the operating characteristics of the vehicle as detected by suitable sensors.
    Type: Application
    Filed: November 3, 2003
    Publication date: July 8, 2004
    Inventors: John R. Forsyth, Fred C. Porter
  • Publication number: 20040116231
    Abstract: A hybrid drive system for a four-wheel drive system arranged to supply motive power to a primary output shaft of a transfer case from an internal combustion engine and to a secondary output shaft from an electric motor/generator. The transfer case is comprised of a planetary gearset having an input driven by the motor/generator and an output directing drive torque to the secondary drivelines. This hybrid drive arrangement permits use of a modified transfer case in place of a conventional transfer case in a traditional four-wheel drive driveline.
    Type: Application
    Filed: September 19, 2003
    Publication date: June 17, 2004
    Inventor: Fred C. Porter
  • Publication number: 20040058773
    Abstract: A drive axle assembly for use in an all-wheel drive vehicle having a first hydraulic coupling operable to automatically transfer drive torque to a secondary driveline in response to slip of the primary driveline and a second hydraulic coupling operable to bias torque and limit slip between the wheels of the secondary driveline.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 25, 2004
    Inventor: Fred C. Porter
  • Patent number: 6688446
    Abstract: An automated multi-speed transmission includes an engine clutch operable to establish a releasable drive connection between the engine and an input shaft, an output shaft adapted to transfer power to the driveline, and a synchromesh geartrain having a plurality of constant-mesh gearsets that can be selectively engaged to establish a plurality of forward and reverse speed ratios. The transmission also includes power-operated dog clutches for selectively engaging the constant-mesh gearsets, and a controller for controlling coordinated actuation of the engine clutch and the power-operated dog clutches. The power-operated dog clutch associated with the low and the top gear are used during downshifts and upshifts, respectively, to actuate a clutch assembly for synchronizing the speed of the input shaft and the selected gear prior to engagement of its corresponding dog clutch.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: February 10, 2004
    Assignee: New Venture Gear, Inc.
    Inventor: Fred C. Porter
  • Patent number: 6672420
    Abstract: A drive axle for an all-wheel drive vehicle includes an adaptively controlled first hydraulic coupling for providing front-to-rear torque transfer control and a passively controlled second hydraulic coupling for providing side-to-side limited slip and torque biasing control. The drive axle is contained with a common housing and communicates with a tractor control system to actively control actuation of the first hydraulic coupling based on the operating characteristics of the vehicle as detected by suitable sensors.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: January 6, 2004
    Assignee: New Venture Gear, Inc.
    Inventor: Fred C. Porter
  • Patent number: 6668961
    Abstract: A full-time all-wheel drive system for a motor vehicle equipped with a transversely mounted engine and transaxle includes a power take-off unit. The power take-off unit includes an interaxle differential which drives a first power path connected to the front wheels and a second power path connected to the rear wheels. The first power path includes a planetary final drive unit which drives a double planetary front differential unit that is interconnected to a pair of front axleshafts. The second power path includes a helical gearset and a bevel gearset which deliver power to a rear propshaft.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: December 30, 2003
    Assignee: New Venture Gear, Inc.
    Inventors: Thomas C. Bowen, Fred C. Porter
  • Patent number: 6648785
    Abstract: A hybrid drive system for a four-wheel drive system arranged to supply motive power to a primary output shaft of a transfer case from an internal combustion engine and to a secondary output shaft from an electric motor/generator. The transfer case is comprised of a planetary gearset having an input driven by the motor/generator and an output directing drive torque to the secondary drivelines. This hybrid drive arrangement permits use of a modified transfer case in place of a conventional transfer case in a traditional four-wheel drive driveline.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: November 18, 2003
    Assignee: New Venture Gear, Inc.
    Inventor: Fred C. Porter
  • Publication number: 20030196844
    Abstract: A drive axle for an all-wheel drive vehicle includes an adaptively controlled first hydraulic coupling for providing front-to-rear torque transfer control and a passively controlled second hydraulic coupling for providing side-to-side limited slip and torque biasing control. The drive axle is contained with a common housing and communicates with a tractor control system to actively control actuation of the first hydraulic coupling based on the operating characteristics of the vehicle as detected by suitable sensors.
    Type: Application
    Filed: May 20, 2003
    Publication date: October 23, 2003
    Inventor: Fred C. Porter
  • Publication number: 20030188949
    Abstract: An automated multi-speed transmission includes an engine clutch operable to establish a releasable drive connection between the engine and an input shaft, an output shaft adapted to transfer power to the driveline, and a synchromesh geartrain having a plurality of constant-mesh gearsets that can be selectively engaged to establish a plurality of forward and reverse speed ratios. The transmission also includes power-operated dog clutches for selectively engaging the constant-mesh gearsets, and a controller for controlling coordinated actuation of the engine clutch and the power-operated dog clutches. The power-operated dog clutch associated with the low and the top gear are used during downshifts and upshifts, respectively, to actuate a clutch assembly for synchronizing the speed of the input shaft and the selected gear prior to engagement of its corresponding dog clutch.
    Type: Application
    Filed: April 8, 2003
    Publication date: October 9, 2003
    Inventor: Fred C. Porter
  • Patent number: 6626787
    Abstract: A drive axle assembly for use in an all-wheel drive vehicle having a first hydraulic coupling operable to automatically transfer drive torque to a secondary driveline in response to slip of the primary driveline and a second hydraulic coupling operable to bias torque and limit slip between the wheels of the secondary driveline.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: September 30, 2003
    Assignee: New Venture Gear, Inc.
    Inventor: Fred C. Porter
  • Patent number: 6578692
    Abstract: An automated multi-speed transmission includes an engine clutch operable to establish a releasable drive connection between the engine and an input shaft, an output shaft adapted to transfer power to the driveline, and a synchromesh geartrain having a plurality of constant-mesh gearsets that can be selectively engaged to establish a plurality of forward and reverse speed ratios. The transmission also includes power-operated dog clutches for selectively engaging the constant-mesh gearsets, and a controller for controlling coordinated actuation of the engine clutch and the power-operated dog clutches. The power-operated dog clutch associated with the low and the top gear are used during downshifts and upshifts, respectively, to actuate a clutch assembly for synchronizing the speed of the input shaft and the selected gear prior to engagement of its corresponding dog clutch.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: June 17, 2003
    Assignee: New Venture Gear, Inc.
    Inventor: Fred C. Porter