公开(公告)号：US20180198352A1

公开(公告)日：2018-07-12

申请号：US15404433

申请日：2017-01-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. Perry ,  James G. Schroth ,  Sean R. Wagner

IPC: H02K15/03 ,  H02K1/27 ,  C23C8/26 ,  C23C8/28 ,  C23C8/50 ,  C23C8/38 ,  C21D7/06 ,  C21D9/00 ,  C21D6/00

Abstract: A method of forming a rotor includes isolating a bridge area of an electrical steel lamination. The bridge area is disposed between a first portion of the electrical steel lamination and a second portion of the electrical steel lamination that is adjacent to the first portion. Each of the first portion, the second portion, and the bridge area has an initial hardness, and the electrical steel lamination has an initial magnetic permeability. After isolating, the method includes hardening only the bridge area so that the bridge area has a treated hardness that is greater than the initial hardness. Concurrent to hardening, the method includes decreasing the initial magnetic permeability at only the bridge area.

公开(公告)号：US20170336287A1

公开(公告)日：2017-11-23

申请号：US15488763

申请日：2017-04-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sean R. Wagner ,  Thomas A. Perry ,  Scott W. Piper ,  Cheol W. Kim

IPC: G01M13/02 ,  G01D5/14 ,  G01R33/00 ,  F16H61/32

CPC classification number: G01M13/021 ,  F16H61/28 ,  F16H61/2815 ,  F16H61/36 ,  F16H2061/326 ,  F16H2063/423 ,  G01D5/145 ,  G01R33/0011

Abstract: A transmission range selection sensor includes a housing defining a bore extending along a central axis. A piston is slideably disposed within the bore. A magnet carrier is attached to and moveable with the piston. A magnet is supported by and moveable with the magnet carrier. A first magnetic sensor and a second magnetic sensor are supported by the housing and are spaced from each other along the central axis. A position of the magnet carrier along the central axis is determinable from a sensed magnetic flux from the first and second magnetic sensors. The sensor includes at least one magnetic flux concentrator attached to one of the magnet carrier or the housing. The flux concentrator is operable to concentrate the magnetic flux toward at least one of the first magnetic sensor or the second magnetic sensor depending upon a position of the magnet along the central axis.

公开(公告)号：US20170297137A1

公开(公告)日：2017-10-19

申请号：US15491376

申请日：2017-04-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. Perry ,  James G. Schroth ,  David R. Sigler

IPC: B23K11/20 ,  B23K35/30 ,  B23K9/30 ,  C22C9/00 ,  B23K9/235

CPC classification number: B23K11/20 ,  B23K1/0008 ,  B23K1/19 ,  B23K9/042 ,  B23K9/232 ,  B23K9/235 ,  B23K9/30 ,  B23K11/115 ,  B23K11/163 ,  B23K35/302 ,  B23K2101/006 ,  B23K2101/18 ,  B23K2101/34 ,  B23K2103/20 ,  C22C9/00

Abstract: A method of joining an aluminum workpiece and an adjacent overlapping steel workpiece by reaction metallurgical joining, and the resultant metallurgical joint formed between the two workpieces, are disclosed. The method involves compressing a reaction material located between the aluminum and steel workpieces and heating the reaction material momentarily to form a metallurgical joint that comprises bonding interface between the reaction material and the steel workpiece and a bonding interface between the reaction material and the aluminum workpiece. The reaction material is formulated to be able to interact with both aluminum and steel in order to establish the bonding interfaces of the metallurgical joint. Moreover, the practice of oscillating wire arc welding may be employed to deposit the reaction material in the form of a reaction material deposit onto the steel workpiece prior to assembling the steel and aluminum workpieces in a workpiece stack-up.

公开(公告)号：US09476948B2

公开(公告)日：2016-10-25

申请号：US14258743

申请日：2014-04-22

Applicant: GM Global Technology Operations LLC

Inventor： David T. Stark ,  Daniel J. Smith ,  Thomas A. Perry ,  Thomas Wolfgang Nehl

IPC: G01B7/14 ,  G01B7/30 ,  G01R33/00 ,  F16D21/06 ,  F16D25/08

CPC classification number: G01R33/0076 ,  F16D21/06 ,  F16D25/083 ,  F16D2300/18 ,  G01R33/0047

Abstract: A linear magnetic sensor shield system comprises first and second shield parts. The system may include first and second field sensor assemblies, each having field sensors disposed therein. The first shield part may be disposed adjacent to a first side of the first field sensor assembly, and the second shield part may be disposed adjacent to a second side of the second field sensor assembly. The shield parts may be formed of mu metal or a mu metal and steel composite, by of example. A torque transmitting device is also provided.

Abstract translation: 线性磁传感器屏蔽系统包括第一和第二屏蔽部分。 该系统可以包括第一和第二场传感器组件，每个具有设置在其中的场传感器。 第一屏蔽部分可以布置成与第一场传感器组件的第一侧相邻，并且第二屏蔽部分可以被布置为与第二场传感器组件的第二侧相邻。 屏蔽部件可以由例如mu金属或μ金属和钢复合材料形成。 还提供了扭矩传递装置。

公开(公告)号：US20160008912A1

公开(公告)日：2016-01-14

申请号：US14789260

申请日：2015-07-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： James G. Schroth ,  Thomas A. Perry

IPC: B23K11/02 ,  C22C9/00 ,  B23K11/18 ,  B23K35/30

CPC classification number: C22C9/00 ,  B23K11/115 ,  B23K11/16 ,  B23K11/185 ,  B23K11/34 ,  B23K35/302 ,  B23K2103/04 ,  B23K2103/10

Abstract: A method of joining a first metal workpiece substrate and a second metal workpiece substrate by way of reaction metallurgical joining involves passing a pulsating DC electrical current through the metal workpiece substrates and a reaction material disposed between confronting faying surfaces of the workpiece substrates. The electrical current comprises a plurality of current pulses that generally increase in applied current level.

Abstract translation: 通过反应冶金接合将第一金属工件基板和第二金属工件基板接合的方法包括使脉动DC电流通过金属工件基板和布置在工件基板的相对的接合表面之间的反应材料。 电流包括通常在施加的电流水平上增加的多个电流脉冲。