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101.发明授权公开(公告)号：US11710993B2
公开(公告)日：2023-07-25
申请号：US17082555
申请日：2020-10-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony M. Coppola , Alireza Fatemi , Yew Sum Leong , Alan G. Holmes
Abstract: An electric machine includes a stator with stator slots securing therein electrically conductive windings. A rotor is rotatably mounted adjacent the stator and includes a stack of rotor laminates. Each laminate includes circumferentially spaced poles, each of which includes a magnet slot spaced from an insert slot. These laminate magnet slots cooperatively define the rotor's magnet slots. Likewise, the laminates' insert slots cooperatively define the rotor's insert slots. Magnets are mounted inside the rotor's magnet slots, and non-magnetic inserts are mounted inside the rotor's insert slots. One or more poles of each laminate includes a structural web that extends radially through the magnet and insert slots of that pole. Multiple poles of each rotor laminate lack a radially extending structural web. Each rotor laminate is rotated with respect to a neighboring rotor laminate such that each pole with a structural web axially aligns with a pole without a structural web.
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公开(公告)号：US20230151875A1
公开(公告)日：2023-05-18
申请号：US17455224
申请日：2021-11-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Shawn H. Swales , Chi Teck Lee , Alan G. Holmes , Hai Xu , Venu Gopal Ganti , Avinash Singh
CPC classification number: F16H3/32 , B60K1/00 , B60K2001/001 , F16H2200/0021
Abstract: Motor driven systems with optimized performance and efficiency are provided. A drive system includes a motor and a gear system coupled with the motor by a shaft. The gear system includes a pair of input gears disposed on the shaft, and a pair of transfer shafts including transfer gears meshing with the input gears. The gear system is configured to cancel axial, radial and/or tangential forces for minimized net force at the shaft.
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公开(公告)号：US20220376592A1
公开(公告)日：2022-11-24
申请号：US17324918
申请日：2021-05-19
Applicant: GM Global Technology Operations LLC
Inventor： Chengwu Duan , Alan G. Holmes , Jian Yao
Abstract: An axial flux motor drive unit for an automobile includes a stator defining a core, an output defining an axis of rotation, a first rotor, a second rotor, and a thrust bearing. The first rotor is rotatable about the axis of rotation and is coupled to the output and disposed relative to the stator to create a first air gap. The second rotor is rotatable about the axis of rotation and is coupled to the output and is disposed relative to the stator to create a second air gap. The thrust bearing is coupled to the output and supports axial loads that are substantially parallel to the axis of rotation, and the first rotor is still rotatable about the axis of rotation when the second rotor is inoperable, and the second rotor is still rotatable when the first rotor is inoperable.
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104.发明申请公开(公告)号：US20220131431A1
公开(公告)日：2022-04-28
申请号：US17082555
申请日：2020-10-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony M. Coppola , Alireza Fatemi , Yew Sum Leong , Alan G. Holmes
Abstract: An electric machine includes a stator with stator slots securing therein electrically conductive windings. A rotor is rotatably mounted adjacent the stator and includes a stack of rotor laminates. Each laminate includes circumferentially spaced poles, each of which includes a magnet slot spaced from an insert slot. These laminate magnet slots cooperatively define the rotor's magnet slots. Likewise, the laminates' insert slots cooperatively define the rotor's insert slots. Magnets are mounted inside the rotor's magnet slots, and non-magnetic inserts are mounted inside the rotor's insert slots. One or more poles of each laminate includes a structural web that extends radially through the magnet and insert slots of that pole. Multiple poles of each rotor laminate lack a radially extending structural web. Each rotor laminate is rotated with respect to a neighboring rotor laminate such that each pole with a structural web axially aligns with a pole without a structural web.
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公开(公告)号：US10730502B2
公开(公告)日：2020-08-04
申请号：US16242632
申请日：2019-01-08
Applicant: GM Global Technology Operations LLC
Inventor： Kris Sevel , Mindy L. Barth , Alan G. Holmes
IPC: G06F7/70 , B60W10/184 , B60W10/04 , B60W30/18
Abstract: A vehicle system including a propulsion system coupled to a drive wheel and a friction brake configured to apply braking torque to a vehicle wheel is described. Operation thereof includes an instruction set that is executable to monitor vehicle speed, vehicle grade, and an operator braking request, and execute instructions upon achieving a vehicle speed that is less than a threshold speed. The instructions include controlling, via the friction brake, the braking torque to achieve a desired vehicle speed, and determining an operator acceleration request and the vehicle grade. The controller determines a minimum vehicle grade-based operator acceleration request, and releases the friction brake only when the operator acceleration request is greater than the minimum vehicle grade-based operator acceleration request.
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Patent Agency Ranking
公开(公告)号：US20200216056A1
公开(公告)日：2020-07-09
申请号：US16242632
申请日：2019-01-08
Applicant: GM Global Technology Operations LLC
Inventor： Kris Sevel , Mindy L. Barth , Alan G. Holmes
IPC: B60W10/184 , B60W10/04 , B60W30/18
Abstract: A vehicle system including a propulsion system coupled to a drive wheel and a friction brake configured to apply braking torque to a vehicle wheel is described. Operation thereof includes an instruction set that is executable to monitor vehicle speed, vehicle grade, and an operator braking request, and execute instructions upon achieving a vehicle speed that is less than a threshold speed. The instructions include controlling, via the friction brake, the braking torque to achieve a desired vehicle speed, and determining an operator acceleration request and the vehicle grade. The controller determines a minimum vehicle grade-based operator acceleration request, and releases the friction brake only when the operator acceleration request is greater than the minimum vehicle grade-based operator acceleration request.
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公开(公告)号：US20200096069A1
公开(公告)日：2020-03-26
申请号：US16137605
申请日：2018-09-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alan G. Holmes
Abstract: The present disclosure provides a transmission clutch assembly having a drum, a brake band, a smart material band and an electrical circuit. The brake band substantially encircles the drum and includes first and second ends, a high friction inner surface, and a low friction outer surface. The smart material band includes a beginning end and a terminating end wherein the beginning end of the smart material band is coupled to the second end of the brake band while the terminating end of the smart material band is coupled to the first end of the brake band. The electrical circuit transfers an electrical current to the smart material band. The smart material band contracts when the electrical current is applied to the smart material band thereby drawing the first and second ends of the brake band closer and contracting the brake hand against the drum to restrict drum movement.
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公开(公告)号：US10300905B2
公开(公告)日：2019-05-28
申请号：US15608384
申请日：2017-05-30
Applicant: GM Global Technology Operations LLC
Inventor： Alan G. Holmes , Min-Joong Kim , Edward A. Rapa, Jr. , Brendan M. Conlon , Joseph R. Littlefield , Donald L. Dusenberry
IPC: B60W10/115 , F16H61/70 , B60L15/20 , F16H3/44 , B60L50/50
Abstract: An electric vehicle drive system includes an electric motor, first and second planetary gear sets, including sun gear, carrier and ring gear members, first and second output shafts, and a housing. The members of the first planetary gear set are connected with the electric motor, the first output shaft, and a member of the second planetary gear set. The members of the second planetary gear set are connected with the first planetary gear set, the housing, and the second output shaft. The first planetary gear set provides differential reduction and the second planetary gear set provides reversal and reduction. Optional clutches can provide the function of a limited slip differential and distribute torque preferentially to one output shaft or the other.
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公开(公告)号：US10036458B2
公开(公告)日：2018-07-31
申请号：US15334333
申请日：2016-10-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Joseph R. Littlefield , Alan G. Holmes
CPC classification number: F16H37/082 , B60K1/00 , B60K6/40 , B60K6/48 , B60K6/52 , B60K2001/001 , B60K2006/4833 , B60Y2200/92 , B60Y2400/73 , B60Y2400/80 , B60Y2400/82 , Y02T10/6221 , Y02T10/6265 , Y10S903/911 , Y10S903/916 , Y10S903/951
Abstract: A final drive assembly for a vehicle drive axle having first and second axle-shafts that are configured to rotate about a common first axis. The final drive assembly includes a first gear-set configured to be operatively connected to the first axle-shaft. The final drive assembly also includes a second gear-set configured to be operatively connected to the second axle-shaft. The final drive assembly additionally includes an electric motor configured to provide an electric motor torque input to each of the first and second gear-sets and arranged on a second axis that is parallel to the first axis.
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公开(公告)号：US20170136870A1
公开(公告)日：2017-05-18
申请号：US14939542
申请日：2015-11-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Joseph Ralph Littlefield , Pete R. Garcia , Alan G. Holmes
CPC classification number: B60K6/52 , B60K6/365 , B60K6/387 , B60K6/442 , B60K2006/381 , B60Y2200/92 , B60Y2400/73 , B60Y2400/82 , F16H3/725 , F16H37/02 , F16H2200/2007 , F16H2200/201 , F16H2200/2097 , Y02T10/6234 , Y02T10/6265 , Y10S903/911 , Y10S903/914 , Y10S903/916
Abstract: A powertrain includes an output member, and first and second simple planetary gear sets. The planetary gear sets each have a first, a second, and a third member including a sun gear, carrier, and ring gear member. The drive unit includes a single electric machine operable as a motor and having a rotor connected to rotate in unison with and drive the sun gear member of the first planetary gear set. An interconnecting member connects the second member of the first planetary gear set to rotate in unison with the first member of the second planetary gear set. The third member of the first planetary gear set or the second member of the second planetary gear set is continuously grounded to the stationary member or operatively connected to be driven by an engine. The third member of the second planetary gear set is continuously operatively connected to the output member.
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