公开(公告)号：US20170097081A1

公开(公告)日：2017-04-06

申请号：US14873642

申请日：2015-10-02

Applicant: GM Global Technology Operations LLC

Inventor： Jeffrey N. Heaton

IPC: F16H48/42 ,  F16H57/04 ,  F16H57/023

CPC classification number: F16H48/42 ,  F16H57/023 ,  F16H57/037 ,  F16H57/0471 ,  F16H57/0483 ,  F16H2048/382 ,  F16H2048/423

Abstract: A vehicle differential assembly includes a differential housing including an outer surface and a driveshaft mounting end having a terminal end portion. A differential gear set is rotationally supported within the differential housing. A pinion gear is arranged in the differential housing. The pinion gear includes a head end drivingly connected to the differential gear set and a tail end extending through the driveshaft mounting end. A head bearing is arranged within the driveshaft mounting end. The head bearing supports the head end of the pinion gear. A tail bearing is supported by the outer surface of the differential housing. The tail bearing is configured and disposed to support the tail end of the pinion relative to the driveshaft mounting end.

公开(公告)号：US20180291979A1

公开(公告)日：2018-10-11

申请号：US15481040

申请日：2017-04-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xiaofeng Mao ,  Hai Xu ,  Jeffrey N. Heaton ,  Scott C. Mrdeza

IPC: F16F15/00 ,  F16F15/18 ,  F16F15/173 ,  F16F15/023 ,  F16F15/027

CPC classification number: F16F15/002 ,  F16F15/0235 ,  F16F15/0275 ,  F16F15/173 ,  F16F15/18 ,  F16F2222/06 ,  F16F2222/08 ,  F16F2222/12 ,  F16F2224/043 ,  F16F2224/045 ,  F16F2228/04 ,  F16F2230/183 ,  F16F2232/02 ,  F16F2236/08

Abstract: An active damping system for a driveline includes a prop shaft configured to transmit engine power from an engine to a load, a sealed damper housing, and an active damping fluid contained within the sealed damper housing. A viscosity of the active damping fluid is changeable based on a torsional vibration of the prop shaft. The active damping system further includes a piston fixed to a side of the prop shaft and in communication with the active damping fluid. The piston is configured to rotate about an axis of the prop shaft. The system further includes a viscosity changing unit in communication with the active damping fluid, and a controller operatively connected to the viscosity changing unit. The controller is configured to cause the viscosity changing unit to change a viscosity of the active damping fluid. The viscosity of the active damping fluid changes the torsional vibration.

公开(公告)号：US20190011013A1

公开(公告)日：2019-01-10

申请号：US15644052

申请日：2017-07-07

Applicant: GM Global Technology Operations LLC

Inventor： Scott C. Mrdeza ,  Xiaofeng Mao ,  Hai Xu ,  Jeffrey N. Heaton

IPC: F16F15/16 ,  B60K17/22 ,  F16F15/124 ,  F16F15/167 ,  F16F15/126 ,  F16F7/108 ,  F16F7/10

Abstract: A system includes a vibration damper coupled for rotation with a rotating body. The vibration damper includes one or more fluid pockets. A reactive fluid is arranged in the one or more fluid pockets. The reactive fluid is configured to undergo a property change upon being exposed to a selected force. A force producing mechanism is fixedly mounted relative to the vibration damper, the force producing mechanism being operable to selectively produce the selected force.

公开(公告)号：US10274040B2

公开(公告)日：2019-04-30

申请号：US15481040

申请日：2017-04-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xiaofeng Mao ,  Hai Xu ,  Jeffrey N. Heaton ,  Scott C. Mrdeza

IPC: F16F15/00 ,  F16F15/02 ,  F16F15/18 ,  F16F15/023 ,  F16F15/027 ,  F16F15/173

Abstract: An active damping system for a driveline includes a prop shaft configured to transmit engine power from an engine to a load, a sealed damper housing, and an active damping fluid contained within the sealed damper housing. A viscosity of the active damping fluid is changeable based on a torsional vibration of the prop shaft. The active damping system further includes a piston fixed to a side of the prop shaft and in communication with the active damping fluid. The piston is configured to rotate about an axis of the prop shaft. The system further includes a viscosity changing unit in communication with the active damping fluid, and a controller operatively connected to the viscosity changing unit. The controller is configured to cause the viscosity changing unit to change a viscosity of the active damping fluid. The viscosity of the active damping fluid changes the torsional vibration.

公开(公告)号：US10100912B2

公开(公告)日：2018-10-16

申请号：US14873642

申请日：2015-10-02

Applicant: GM Global Technology Operations LLC

Inventor： Jeffrey N. Heaton

IPC: F16H57/04 ,  F16H48/00 ,  F16H48/42 ,  F16H57/023 ,  F16H57/037 ,  F16H48/38

Abstract: A vehicle differential assembly includes a differential housing including an outer surface and a driveshaft mounting end having a terminal end portion. A differential gear set is rotationally supported within the differential housing. A pinion gear is arranged in the differential housing. The pinion gear includes a head end drivingly connected to the differential gear set and a tail end extending through the driveshaft mounting end. A head bearing is arranged within the driveshaft mounting end. The head bearing supports the head end of the pinion gear. A tail bearing is supported by the outer surface of the differential housing. The tail bearing is configured and disposed to support the tail end of the pinion relative to the driveshaft mounting end.

公开(公告)号：US11326683B2

公开(公告)日：2022-05-10

申请号：US16437536

申请日：2019-06-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hai Xu ,  Jeffrey N. Heaton ,  Scott M. Neher ,  Brian T. King ,  Syed M. Raza ,  Travis Bussell

IPC: F16H57/00 ,  F16H57/023 ,  F16H48/08 ,  B23F9/02 ,  B23P15/00 ,  F16H48/38

Abstract: A method for controlling a process for manufacturing a bevel gear includes forming, via a first process, a ring gear and determining a first set of parameters associated with the ring gear, and forming, via a second process, the pinion gear, and determining a second set of parameters associated with the pinion gear. The ring gear and the pinion gear are paired, and a single-flank test is executed on the paired ring gear and pinion gear to determine a third set of parameters. The paired ring gear and pinion gear are assembled into a final assembly, and an end-of-line noise/vibration analysis of the final assembly is executed. The noise/vibration analysis, the first set of parameters, the second set of parameters, and the third set of parameters are evaluated, and one of the first process, the second process, the pairing process, and the assembly process are adjusted based thereon.