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公开(公告)号：US20130203548A1
公开(公告)日：2013-08-08
申请号：US13737074
申请日：2013-01-09
Applicant: GM Global Technology Operations LLC
Inventor： Edward W. Mellet , James M. Hart
IPC: F16H3/62
CPC classification number: F16H3/62 , F16H3/666 , F16H2200/0069 , F16H2200/201 , F16H2200/2025 , F16H2200/2048
Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include four clutches and three brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.
Abstract translation: 提供一种变速器，其具有输入构件，输出构件，四个行星齿轮组，多个联接构件和多个扭矩传递装置。 每个行星齿轮组包括第一，第二和第三构件。 扭矩传递装置包括四个离合器和三个可组合起动两个制动器的制动器，以建立多个前进档比和一个倒档传动比。
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公开(公告)号：US20250035205A1
公开(公告)日：2025-01-30
申请号：US18359404
申请日：2023-07-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Matthew James Laskaska , Chi Teck Lee , James M. Hart , Christopher Michael Kaminski , Randal W. Arndt
IPC: F16H57/021 , F16H57/023
Abstract: A number of variations disclosed may include a product which may include a carrier having piloting features for assembling multiple gear drives for use in an electric drive unit of a vehicle. A number of variations disclosed may include a method of assembling a portion of an electric drive unit utilizing a gear piloting carrier having piloting features for assembling multiple gear drives.
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公开(公告)号：US20240351416A1
公开(公告)日：2024-10-24
申请号：US18305132
申请日：2023-04-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chi Teck Lee , James M. Hart , Christopher Michael Kaminski , Favian Zavala
CPC classification number: B60K1/00 , B60K17/165 , B60K2001/001
Abstract: Compact electric drive units and vehicles with such drive units are provided. An exemplary electric drive unit includes an electric motor configured to provide an electric motor torque; an input differential configured to split the electric motor torque into a first path and a second path; a final drive gear on each path; a pinion gear on each path; and a rear transfer shaft assembly and a front transfer shaft assembly on each path. Further, each pinion gear is configured to transfer torque to a respective rear transfer shaft assembly and a respective front transfer shaft assembly, and the respective rear transfer and front transfer shaft assemblies are configured to transfer torque to the respective final drive gear.
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公开(公告)号：US20230064218A1
公开(公告)日：2023-03-02
申请号：US17460899
申请日：2021-08-30
Applicant: GM Global Technology Operations LLC
Inventor： Clinton E. Carey , James M. Hart , Daryl A. Wilton
IPC: F16H57/023 , F16H57/031 , F16H61/30 , F16H47/06 , B60K17/10
Abstract: A transmission system has a housing including a wall and a gear support extending from the wall. The gear support has an outer surface and an inner surface defining a passage. The outer surface includes a seal receiving portion and a seal support axially spaced from the seal receiving portion. A seal is positioned about the gear support at the seal receiving portion. A sleeve is arranged on the outer surface of the gear support between the wall and the seal and a pump drive gear is mounted on the gear support and is supported by the sleeve. The pump drive gear includes an outer toothed surface, an inner surface, and a bushing arranged on the inner surface, the bushing extending about the sleeve.
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公开(公告)号：US20210061085A1
公开(公告)日：2021-03-04
申请号：US16552652
申请日：2019-08-27
Applicant: GM Global Technology Operations LLC
Inventor： Edward W. Mellet , James M. Hart , Elizabeth l. Wooden
Abstract: A P2 transmission and engine assembly includes a transverse mounted transmission having: a transmission first end and a transmission second end oppositely positioned with respect to the transmission first end; and a transmission gearbox portion having a first cavity positioned at the second end. A torque converter is positioned at the transmission first end. An electric motor is positioned within the first cavity and is rotatably connected to the torque converter using a turbine shaft. A one-way clutch is connected to the turbine shaft and releasably connects the turbine shaft to the torque converter. The one-way clutch when disengaged disconnects the torque converter from the turbine shaft.
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Patent Agency Ranking
公开(公告)号：US20210031621A1
公开(公告)日：2021-02-04
申请号：US16526368
申请日：2019-07-30
Applicant: GM Global Technology Operations LLC
Inventor： James M. Hart , Daryl A. Wilton , Robert L. Moses
IPC: B60K17/346 , F16H61/686 , B60K23/08
Abstract: A drive torque transfer case is provided. The transfer case includes an input shaft, an output shaft, a gear assembly coupled to the input shaft, and a range clutch assembly coupled to the output shaft. The range clutch assembly includes a clutch member and a multi-piston actuator configured to receive a pressurized transmission fluid for selectively axially translating the clutch member to engage a component of the gear assembly for transmitting a drive torque from the input shaft to the output shaft. The multi-piston actuator includes an internal piston having a first annular surface area A1 and a third annular surface area A3, and an external piston having a second annular surface area A2 and a fourth annular surface area A4. The A1 and A2 are in hydraulic communication with a first hydraulic chamber, and A3 and A4 are in hydraulic communication with a second hydraulic chamber.
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公开(公告)号：US10473210B2
公开(公告)日：2019-11-12
申请号：US15239349
申请日：2016-08-17
Applicant: GM Global Technology Operations LLC
Inventor： Daryl A. Wilton , James M. Hart , Eric C. Sandstrom
Abstract: A transmission sealed low leak controls system includes a controls system having a first fluid for operation of the controls system provided by a first pump at a first pressure. A transmission input shaft is provided. A planetary gear set is connected to the transmission input shaft by a clutch assembly. A second pump provides a second fluid different from the first fluid for cooling and lubrication of the at least one clutch assembly at a second pressure lower than the first pressure. A torque converter is connected to the transmission input shaft. The second pump further provides the second fluid to the torque converter.
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公开(公告)号：US20180119752A1
公开(公告)日：2018-05-03
申请号：US15340144
申请日：2016-11-01
Applicant: GM Global Technology Operations LLC
Inventor： Daryl A. Wilton , James M. Hart , Ted R. Skrzycke
IPC: F16D25/0638 , F16D13/52 , F16D13/58
CPC classification number: F16D25/0638 , F16D13/52 , F16D13/58 , F16D2013/706 , F16H45/02 , F16H2045/0284
Abstract: A torque transferring transmission-drive system includes a first friction surface. A second friction surface is directed toward the first friction surface. A reaction plate is positioned between the first friction surface and the second friction surface. A piston is actuated by a fluid pressure to displace the first friction surface toward the second friction surface, frictionally engaging the reaction plate between the first friction surface and the second friction surface. At least one strap spring in a clutch engaged condition elastically compresses to allow the reaction plate to be frictionally engaged between the first friction surface and the second friction surface, and in a clutch disengaged condition the at least one strap spring elastically expands to create a clearance between the reaction plate and each of the first friction surface and the second friction surface.
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公开(公告)号：US20180119751A1
公开(公告)日：2018-05-03
申请号：US15340143
申请日：2016-11-01
Applicant: GM Global Technology Operations LLC
Inventor： Daryl A. Wilton , James M. Hart
IPC: F16D13/69 , F16D13/52 , F16D25/0638 , F16D13/58
CPC classification number: F16D25/0638 , F16D13/52 , F16D13/58 , F16D13/683 , F16D13/69
Abstract: A passive opening transmission clutch system includes a backing plate having multiple tab slots, each of the tab slots having a tapered wall. A first reaction plate has multiple first tapered spline teeth oriented transverse to a plane of the first reaction plate. The first tapered spline teeth are positioned at least partially in individual ones of the tab slots in a clutch disengaged condition. The first tapered spline teeth when displaced further into the tab slots and toward the backing plate define a clutch engaged condition. A first friction plate is in frictional contact with the first reaction plate in the clutch engaged condition, the first friction plate when rotated generating a rotational force on the first reaction plate. The rotational force acts against the first tapered spline teeth to induce the first reaction plate to slidably move away from the backing plate.
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公开(公告)号：US09581221B2
公开(公告)日：2017-02-28
申请号：US14685056
申请日：2015-04-13
Applicant: GM Global Technology Operations LLC
Inventor： Edward W. Mellet , James M. Hart , Daryl A. Wilton
IPC: F16H3/66
CPC classification number: F16H3/66 , F16H2200/006 , F16H2200/0069 , F16H2200/2012 , F16H2200/2046 , F16H2200/2097
Abstract: A transmission is provided having an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and a brake actuatable in combinations of four to establish a plurality of forward gear ratios and at least one reverse gear ratio.
Abstract translation: 提供一种变速器，其具有输入构件，输出构件，至少四个行星齿轮组，多个联接构件和多个扭矩传递装置。 每个行星齿轮组包括第一，第二和第三构件。 扭矩传递装置包括离合器和可四个可组合的制动器，以建立多个前进档比和至少一个倒档传动比。
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