公开(公告)号：US10895237B1

公开(公告)日：2021-01-19

申请号：US16511860

申请日：2019-07-15

Applicant: GM Global Technology Operations LLC

Inventor： Farzad Samie ,  Chunhao J. Lee ,  Lei Hao ,  Chandra S. Namuduri

IPC: F02N11/08

Abstract: An electric starter system is disclosed for use with an engine having a flywheel. The electric starter system includes a pinion gear and a solenoid device coupled to the pinion gear. The solenoid device is movable between a pre-engaged position when the pinion gear is moved into engagement with the flywheel and a disengaged position when the pinion gear is disengaged from the flywheel. A brushless starter motor is selectively connectable to the flywheel of the engine via the pinion gear during a requested engine start event. A latch mechanism is selectively engageable with the solenoid device. The latch mechanism is moveable between a latched position in which the solenoid device is mechanically held in the pre-engaged position and an unlatched position in which the solenoid device is released for movement to the disengaged position.

公开(公告)号：US20200325970A1

公开(公告)日：2020-10-15

申请号：US16382982

申请日：2019-04-12

Applicant: GM Global Technology Operations LLC

Inventor： Derek F. Lahr ,  Chunhao J. Lee ,  Farzad Samie ,  Dongxu Li ,  Dmitriy Bruder

IPC: F16H45/02 ,  F16D41/08 ,  F16D41/12 ,  F16D41/16 ,  B60W20/10 ,  B60W30/188 ,  F16H61/14

Abstract: Presented are clutch-type engine disconnect devices, methods for making/using such disconnect devices, and motor vehicles equipped with such disconnect devices. An engine disconnect device includes a notch plate, which has multiple notches and attaches to a torque converter, and a pocket plate, which has multiple pockets and attaches to an engine's crankshaft. A pawl is movably mounted within each notch; these pawls selectively engage the notches with the pockets. A notch plate insert is nested within each notch, supporting thereon one of the pawls. A selector plate interposed between the pocket and notch plates moves from a first position, to shift the pawls out of engagement with the pockets, and a second position, to move the notch plate inserts within the notches and allow the pawls to engage the notches with the pockets to thereby lock the notch plate to the pocket plate to rotate in unison with each other.

公开(公告)号：US10760624B1

公开(公告)日：2020-09-01

申请号：US16382994

申请日：2019-04-12

Applicant: GM Global Technology Operations LLC

Inventor： Farzad Samie ,  Derek F. Lahr ,  Dmitriy Bruder ,  Madhusudan Raghavan ,  Chunhao J. Lee ,  Dongxu Li

IPC: F16D41/08 ,  F16D41/04 ,  F16H41/04

Abstract: Presented are wedge-type engine disconnect devices, methods for making/using such disconnect devices, and motor vehicles equipped with such disconnect devices. An engine disconnect device includes an outer race that attaches to a torque converter's pump cover. The outer race's inner diameter (ID) surface has circumferentially spaced grooves. An inner race is concentrically aligned within the outer race and attaches to an engine's output shaft. The inner race's outer diameter (OD) surface has circumferentially spaced pockets. A wedge plate interposed between the inner and outer races has multiple circumferentially spaced ramps. Each ramp slidably mounts within one groove and one pocket. The wedge plate moves between an engaged position, whereat the ramps wedge between the ID and OD surfaces to thereby transfer torque between the inner and outer races, and a disengaged position, whereat the ramps unwedge to thereby free the inner race to rotate with respect to the outer race.

公开(公告)号：US10583728B2

公开(公告)日：2020-03-10

申请号：US15840411

申请日：2017-12-13

Applicant: GM Global Technology Operations LLC

Inventor： Derek F. Lahr ,  Farzad Samie ,  Chunhao J. Lee ,  Dongxu Li ,  Norman K. Bucknor

IPC: F16H45/02 ,  B60K6/26 ,  F04B23/04 ,  B60K6/38 ,  B60K6/405 ,  B60K6/485 ,  B60K17/02 ,  F04B17/05 ,  B60K6/48 ,  B60W10/02 ,  F02N11/04

Abstract: A powertrain includes an engine and a transmission. A vehicle includes a body structure and the powertrain supported by the body structure. The powertrain is configured to propel the body structure. The engine includes an output shaft, and the transmission includes an input member. The powertrain further includes a torque converter operable between the output shaft and the input member. The torque converter includes a pump and a turbine. The powertrain also includes a motor-generator operable as a motor and a generator. The input member of the transmission is connected to the turbine such that torque from the torque converter is transferrable to the input member. The input member of the transmission is coupled to the motor-generator such that torque is transferred between the input member and the motor-generator.

公开(公告)号：US10563744B2

公开(公告)日：2020-02-18

申请号：US16214888

申请日：2018-12-10

Applicant: GM Global Technology Operations LLC

Inventor： Derek F. Lahr ,  Chunhao J. Lee ,  Farzad Samie ,  Norman K. Bucknor ,  Dongxu Li

IPC: F16D41/12 ,  F16H45/02 ,  F16D41/08 ,  F16D41/16 ,  F16H41/24 ,  B60K6/40 ,  B60K6/20

Abstract: Disclosed are damper assemblies for engine disconnect devices, methods for making such damper assemblies, and motor vehicles with a disconnect device for coupling/decoupling an engine with a torque converter (TC). A disconnect clutch for selectively connecting an engine with a TC includes a pocket plate that movably mounts to the TC. The pocket plate includes pockets movably seating therein engaging elements that engage input structure of the TC and thereby lock the pocket plate to the TC. A selector plate moves between engaged and disengaged positions such that the engaging elements shift into and out of engagement with the TC input structure, respectively. A flex plate is attached to the engine's output shaft for common rotation therewith. A damper plate is attached to the pocket plate for common rotation therewith. Spring elements mate the damper and flex plates such that the damper plate is movably attached to the flex plate.

公开(公告)号：US20190376568A1

公开(公告)日：2019-12-12

申请号：US16001744

申请日：2018-06-06

Applicant: GM Global Technology Operations LLC

Inventor： Farzad Samie ,  Derek F. Lahr ,  Chunhao J. Lee

IPC: F16D41/08 ,  F16D41/069

Abstract: A selectable one-way clutch can be equipped in a vehicle powertrain assembly. The selectable one-way clutch can include a notch plate and a pocket plate. The pocket plate has a pocket, and the notch plate has a notch. A coupling mechanism is disposed in the pocket and is moveable in the pocket. The coupling mechanism is used to bring about engagement between the notch and pocket plates and, in an example, is a strut-type coupling mechanism. A pair of damper springs is disposed in the pocket. A selector plate is situated between the pocket plate and the notch plate. The selector plate includes a window.

公开(公告)号：US10473197B2

公开(公告)日：2019-11-12

申请号：US15615104

申请日：2017-06-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Derek F Lahr ,  Farzad Samie

IPC: F16D3/12 ,  F16H15/52 ,  F16F15/121 ,  F16F15/14 ,  F16F1/10 ,  F16F1/12

Abstract: A torque transfer mechanism includes an input member to receive an input torque from a propulsion source and an output member coupled to the input member to transfer the input torque to a driveline component. The torque transfer mechanism also includes a damping mechanism having at least one spring element to restrict relative rotation between the input member and the output member. wherein the at least one spring element defines a first spring rate corresponding to an initial range of travel that is less than a second spring rate corresponding to a subsequent range of travel.

公开(公告)号：US10337597B2

公开(公告)日：2019-07-02

申请号：US15587790

申请日：2017-05-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Farzad Samie ,  Derek F. Lahr ,  Chunhao J. Lee

IPC: F16H45/02 ,  F16D1/104 ,  F16D3/72 ,  F16D28/00 ,  F16D41/12 ,  F16H41/24 ,  F16D3/77 ,  F16D27/10 ,  F16D41/06 ,  F16D41/064 ,  F16D41/14 ,  F16H45/00 ,  F16D3/12 ,  F16D25/0638

Abstract: Disclosed are engine flexplates with integrated engine disconnects, methods for making and for using such flexplates, and motor vehicles with an engine flexplate having an integrated engine disconnect device. An engine flexplate assembly is disclosed for operatively coupling an engine to a hydrokinetic torque converter. The flexplate assembly includes a disk-shaped body with a central hub that rigidly attaches on the fore side thereof to the engine output shaft for common rotation therewith. A disconnect device, which is positioned on the aft side of the disk-shaped body, includes concentric inner and outer races. The outer race is rigidly attached to the disk-shaped body for common rotation therewith. The inner race rigidly attaches to the front cover of the TC housing for common rotation therewith. The disconnect device operatively disconnects the engine output shaft from the TC housing front cover when a torque transmitted therebetween reverses direction.

公开(公告)号：US10267376B2

公开(公告)日：2019-04-23

申请号：US15198239

申请日：2016-06-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Farzad Samie ,  Derek F. Lahr ,  Dmitriy Bruder

IPC: F16F15/121 ,  F16F15/123 ,  F16H25/18 ,  F16D3/12 ,  F16D3/56 ,  F16H41/24 ,  F16H45/02

Abstract: A torque transfer mechanism includes an input member to receive an input torque from a propulsion source, and an output member coupled to the input member to transfer the input torque to a driveline component. A multi-component damping mechanism is disposed between the input member and the output member which includes a first spring element cooperating with a second spring element to couple the input member to the output member. The first spring element defines a greater stiffness and shorter deflection relative to the second spring element.

公开(公告)号：US10260613B2

公开(公告)日：2019-04-16

申请号：US15617710

申请日：2017-06-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Derek F. Lahr ,  Farzad Samie ,  Chunhao J. Lee ,  Norman K. Bucknor ,  Dongxu Li

IPC: F16D41/08 ,  F16D41/16 ,  F16D41/12 ,  F16H45/02

Abstract: Disclosed are damper assemblies for engine disconnect devices, methods for making such damper assemblies, and motor vehicles with a disconnect device for coupling/decoupling an engine with a torque converter (TC). A disconnect clutch for selectively connecting an engine with a TC includes a pocket plate that movably mounts to the TC. The pocket plate includes pockets movably seating therein engaging elements that engage input structure of the TC and thereby lock the pocket plate to the TC. A selector plate moves between engaged and disengaged positions such that the engaging elements shift into and out of engagement with the TC input structure, respectively. A flex plate is attached to the engine's output shaft for common rotation therewith. A damper plate is attached to the pocket plate for common rotation therewith. Spring elements mate the damper and flex plates such that the damper plate is movably attached to the flex plate.