John Scott Forsyth

US Patent:

6354173, Mar 12, 2002

Filed:

Feb 22, 2000

Appl. No.:

09/510633

Inventors:

Larry A. Pritchard - Macomb MI
John R. Forsyth - Romeo MI

Assignee:

New Venture Gear, Inc. - Troy MI

International Classification:

F16H 5702

US Classification:

74606R, 475206, 180248

Abstract:

A powertrain assembly includes a first housing defining a first longitudinal axis. The first housing also has an axially extending pilot. The powertrain assembly further includes a second housing defining a second longitudinal axis and an outer wall. The outer wall has a guide face formed on an inner surface. The pilot is disposed within the second housing and engages the guide face to align the first and second longitudinal axes. A fastener interconnects the second housing on the first housing.

US Patent:

6378391, Apr 30, 2002

Filed:

Oct 1, 2001

Appl. No.:

09/969250

Inventors:

John R. Forsyth - Romeo MI

Assignee:

New Venture Gear, Inc. - Troy MI

International Classification:

F16H 308

US Classification:

74331

Abstract:

A compact manual transaxle includes an input shaft having a fixed transfer gear, a reduction shaft having two reduction gears, one of which meshing with the transfer gear, a mainshaft having three input gears and an output shaft supporting three speed gears meshing with the three input gears. The transaxle further includes a pair of synchronizer clutches for establishing a direct and a reduction gearset flow path, and a pair of synchronizer clutches for establishing the forward gear speed ratios by selectively coupling the three speed gears to the output shaft. A reverse gear assembly is provided for establishing a reverse gear. A locking mechanism is provided for selectively inhibiting rotation of a carrier assembly of the reverse gear assembly so as to cause the output to be driven in an opposite direction relative to the input for providing a reverse gear.

US Patent:

6422103, Jul 23, 2002

Filed:

Jun 26, 2000

Appl. No.:

09/603029

Inventors:

John R. Forsyth - Romeo MI

Assignee:

New Venture Gear, Inc. - Troy MI

International Classification:

F16H 308

US Classification:

74331, 475207

Abstract:

A compact manual transaxle includes an input shaft having a fixed transfer gear, a reduction shaft having two reduction gears, one of which meshing with the transfer gear, a mainshaft having three input gears and an output shaft supporting three speed gears meshing with the three input gears. The transaxle further includes a pair of synchronizer clutches for establishing a direct and a reduction gearset flow path, and a pair of synchronizer clutches for establishing the forward gear speed ratios by selectively coupling the three speed gears to the output shaft. A reverse gear assembly is provided for establishing a reverse gear. A locking mechanism is provided for selectively inhibiting rotation of a carrier assembly of the reverse gear assembly so as to cause the output to be driven in an opposite direction relative to the input for providing a reverse gear.

US Patent:

6571654, Jun 3, 2003

Filed:

Dec 17, 2001

Appl. No.:

10/023307

Inventors:

John R. Forsyth - Romeo MI

Assignee:

New Venture Gear, Inc. - Troy MI

International Classification:

F16H 338

US Classification:

74339, 74333

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.

US Patent:

6672180, Jan 6, 2004

Filed:

Dec 17, 2001

Appl. No.:

10/023305

Inventors:

John R. Forsyth - Romeo MI

Assignee:

New Venture Gear, Inc. - Troy MI

International Classification:

F16H 338

US Classification:

74339, 74329

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.

US Patent:

6942055, Sep 13, 2005

Filed:

Nov 3, 2003

Appl. No.:

10/700257

Inventors:

John R. Forsyth - Romeo MI, US
Fred C. Porter - Beverly Hills MI, US

Assignee:

Magna Drivetrain of America, Inc. - Troy MI

International Classification:

B60K017/344

US Classification:

180249, 192 481, 475 86

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.

US Patent:

6966396, Nov 22, 2005

Filed:

Mar 7, 2005

Appl. No.:

11/074333

Inventors:

John R. Forsyth - Romeo MI, US
Fred C. Porter - Anguilla, KN

Assignee:

Magna Drivetrain of America, Inc. - Troy MI

International Classification:

B60K017/344

US Classification:

180249, 192 481, 475 86

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.

US Patent:

7490526, Feb 17, 2009

Filed:

Apr 17, 2007

Appl. No.:

11/736329

Inventors:

John R. Forsyth - Washington MI, US

Assignee:

Magna Powertrain USA, Inc. - Troy MI

International Classification:

F16H 3/08

US Classification:

74330, 74331

Abstract:

A dual-clutch powershift transmission for use in a motor vehicle having an engine and a driveline includes an output shaft adapted for connection to the driveline, first and second input shafts, a first engine clutch operable for establishing a releaseable drive connection between the engine and the first input shaft and a second engine clutch operable for establishing a releasable drive connection between the engine shaft and the second input shaft. A first constant-mesh gearset is driven by the first input shaft. A second constant-mesh gearset is driven by the second input shaft. A first shift clutch releasably engages the first gearset to establish a drive connection between the first input shaft and the output shaft. A second shift clutch releasably engages the second gearset to establish a drive connection between the second input shaft and the output shaft.