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).
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Patent number: 7878933Abstract: 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: GrantFiled: June 25, 2009Date of Patent: February 1, 2011Assignee: MAGNA Powertrain USA, Inc.Inventors: Fred C. Porter, Todd Ekonen, Thomas C. Bowen
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Publication number: 20090258751Abstract: 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: ApplicationFiled: June 25, 2009Publication date: October 15, 2009Applicant: MAGNA POWERTRAIN USA, INC.Inventors: Fred C. Porter, Todd Ekonen, Thomas C. Bowen
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Patent number: 7568568Abstract: 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: GrantFiled: July 19, 2006Date of Patent: August 4, 2009Assignee: Magna Powertrain USA, Inc.Inventors: Fred C. Porter, Todd Ekonen, Thomas C. Bowen
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Patent number: 7395893Abstract: 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: GrantFiled: September 7, 2006Date of Patent: July 8, 2008Assignee: Magna Powertrain USA, Inc.Inventor: Fred C. Porter
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Patent number: 7125357Abstract: 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: GrantFiled: November 22, 2005Date of Patent: October 24, 2006Assignee: Magna Powertrain USA, Inc.Inventor: Fred C. Porter
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Patent number: 7004869Abstract: 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: GrantFiled: September 19, 2003Date of Patent: February 28, 2006Assignee: Magna Powertrain, Inc.Inventor: Fred C. Porter
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Patent number: 6966396Abstract: 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: GrantFiled: March 7, 2005Date of Patent: November 22, 2005Assignee: Magna Drivetrain of America, Inc.Inventors: John R. Forsyth, Fred C. Porter
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Patent number: 6942055Abstract: 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: GrantFiled: November 3, 2003Date of Patent: September 13, 2005Assignee: Magna Drivetrain of America, Inc.Inventors: John R. Forsyth, Fred C. Porter
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Patent number: 6814681Abstract: 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: GrantFiled: September 26, 2003Date of Patent: November 9, 2004Assignee: New Venture Gear, Inc.Inventor: Fred C. Porter
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Publication number: 20040129475Abstract: 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: ApplicationFiled: November 3, 2003Publication date: July 8, 2004Inventors: John R. Forsyth, Fred C. Porter
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Publication number: 20040116231Abstract: 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: ApplicationFiled: September 19, 2003Publication date: June 17, 2004Inventor: Fred C. Porter
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Publication number: 20040058773Abstract: 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: ApplicationFiled: September 26, 2003Publication date: March 25, 2004Inventor: Fred C. Porter
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Patent number: 6688446Abstract: 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: GrantFiled: April 8, 2003Date of Patent: February 10, 2004Assignee: New Venture Gear, Inc.Inventor: Fred C. Porter
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Patent number: 6672420Abstract: 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: GrantFiled: May 20, 2003Date of Patent: January 6, 2004Assignee: New Venture Gear, Inc.Inventor: Fred C. Porter
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Patent number: 6668961Abstract: 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: GrantFiled: December 6, 2002Date of Patent: December 30, 2003Assignee: New Venture Gear, Inc.Inventors: Thomas C. Bowen, Fred C. Porter
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Patent number: 6648785Abstract: 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: GrantFiled: December 5, 2001Date of Patent: November 18, 2003Assignee: New Venture Gear, Inc.Inventor: Fred C. Porter
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Publication number: 20030196844Abstract: 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: ApplicationFiled: May 20, 2003Publication date: October 23, 2003Inventor: Fred C. Porter
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Publication number: 20030188949Abstract: 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: ApplicationFiled: April 8, 2003Publication date: October 9, 2003Inventor: Fred C. Porter
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Patent number: 6626787Abstract: 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: GrantFiled: February 27, 2002Date of Patent: September 30, 2003Assignee: New Venture Gear, Inc.Inventor: Fred C. Porter
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Patent number: 6578692Abstract: 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: GrantFiled: December 17, 2001Date of Patent: June 17, 2003Assignee: New Venture Gear, Inc.Inventor: Fred C. Porter