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    ARTICULATED SHIELD FOR A VEHICLE FRICTION BRAKE
    1.
    发明申请
    ARTICULATED SHIELD FOR A VEHICLE FRICTION BRAKE 审中-公开

    公开(公告)号：US20190360543A1

    公开(公告)日：2019-11-28

    申请号：US15987010

    申请日：2018-05-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Richard J. Skurkis ,  Paul W. Alexander ,  Anthony L. Smith ,  David Begleiter ,  Mark T. Riefe ,  Steven J. Weber

    IPC: F16D65/78

    Abstract: A shield assembly is employed for a friction brake used to decelerate a road wheel of a vehicle. The vehicle has a body with a first body end configured to face an incident ambient airflow, a second body end opposite of the first body end, and an underbody section spanning a distance between the first and second ends. The shield assembly includes a first shield component arranged proximate the brake and rotationally fixed relative to the vehicle body. The shield assembly also includes a second shield component operatively connected to the first shield component for shifting relative thereto. The shield assembly additionally includes an actuator employing a shape memory alloy element to shift the second shield component relative to the first shield component in response to a temperature of the brake to thereby direct at least a portion of the airflow to the brake and control temperature thereof.

    Brake rotor with decorative insert
    2.
    发明授权
    Brake rotor with decorative insert 有权

    公开(公告)号：US10378599B2

    公开(公告)日：2019-08-13

    申请号：US15643004

    申请日：2017-07-06

    Applicant: GM Global Technology Operations LLC

    Inventor： Christopher J. Mettrick ,  Mark T. Riefe ,  Michael L. Holly ,  James A. Webster ,  Michael J. Walker ,  Anil K. Sachdev

    IPC: F16D65/12 ,  B60R13/00 ,  F16D65/02

    Abstract: A brake rotor comprising a brake pad wear surface; a hat surface; and a decorative insert comprising an insert material, the decorative insert disposed on the brake pad wear surface, the hat surface, or both; wherein at least one of a friction coefficient between the decorative insert and a brake pad is substantially the same as a friction coefficient between the brake pad wear surface and the brake pad, a wear rate of the decorative insert is substantially the same as or greater than a wear rate of the brake pad wear surface, or a wear rate of the decorative insert is substantially the same as or greater than a wear rate of the hat surface; and at least a portion of the decorative insert is visible on the brake pad wear surface, the hat surface, or both.

    BRAKE ROTOR PROGNOSIS
    3.
    发明申请
    BRAKE ROTOR PROGNOSIS 审中-公开

    公开(公告)号：US20190017561A1

    公开(公告)日：2019-01-17

    申请号：US15651475

    申请日：2017-07-17

    Applicant: GM Global Technology Operations LLC

    Inventor： David B. Antanaitis ,  Mark T. Riefe ,  Matthew A. Robere

    IPC: F16D66/02 ,  B60T17/22

    Abstract: Technical solutions are described to for determining thickness of a vehicle brake rotor. An example method includes providing vehicle parameters that identify operating conditions of a vehicle, and using the vehicle parameters to determine work done by a brake of the vehicle as brake-work. Further, the method includes using the brake work to determine brake rotor temperature, and using the brake rotor temperature to determine brake rotor wear. The method further includes accumulating the brake rotor wear to provide an estimation of the thickness of the vehicle brake rotor.

    METHOD OF ESTIMATING BRAKE PAD WEAR AND VEHICLE HAVING A CONTROLLER THAT IMPLEMENTS THE METHOD
    7.
    发明申请
    METHOD OF ESTIMATING BRAKE PAD WEAR AND VEHICLE HAVING A CONTROLLER THAT IMPLEMENTS THE METHOD 有权
    估计制动踏板磨损的方法和具有实施方法的控制器的车辆

    公开(公告)号：US20160138665A1

    公开(公告)日：2016-05-19

    申请号：US14540048

    申请日：2014-11-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： David B. Antanaitis ,  Mark T. Riefe

    IPC: F16D66/02

    CPC classification number: F16D66/026 ,  B60Q1/00 ,  B60T17/22 ,  F16D66/027 ,  F16D2066/001 ,  F16D2066/006

    Abstract: A method of estimating brake pad wear includes determining required braking energy to be dissipated by a braking system as a fraction of total kinetic energy according to an energy partitioning model. The required braking energy is distributed to vehicle braking mechanisms according to a vehicle dynamics model. Rotor temperature of each brake rotor may be determined according to a rotor temperature model that utilizes the required braking energy and the distribution of the required braking energy, and determining brake pad wear of each brake pad according to a brake pad wear model that utilizes the rotor temperature and the distributed required braking energy. A first brake pad wear model is implemented under first operating conditions, and a second brake pad wear model under second operating conditions. The brake pad wear is indicated via a brake pad wear indicator output device. A vehicle has a controller that implements the method.

    Abstract translation: 估计刹车片磨损的方法包括根据能量分配模型确定要由制动系统消散的所需制动能量作为总动能的一部分。 所需的制动能量根据车辆动力学模型分配到车辆制动机构。 每个制动转子的转子温度可以根据利用所需制动能量和所需制动能量分布的转子温度模型来确定，并且根据利用转子的制动片磨损模型确定每个制动衬块的制动衬块磨损 温度和分布所需的制动能量。 在第一操作条件下实施第一制动片磨损模型，在第二操作条件下实施第二制动垫磨损模型。 刹车片磨损由刹车片磨损指示器输出装置指示。 车辆具有实施该方法的控制器。

    Thermally compensating cast-in-place torsion joint with improved axial stiffness
    8.
    发明授权
    Thermally compensating cast-in-place torsion joint with improved axial stiffness 有权
    热补偿现浇扭转接头，提高轴向刚度

    公开(公告)号：US09316276B2

    公开(公告)日：2016-04-19

    申请号：US14107432

    申请日：2013-12-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Richard M. Kleber ,  Tomasz Warzecha ,  Silviu A. Pepescu ,  Mark T. Riefe

    IPC: F16D65/12 ,  B22D19/00 ,  F16D65/02

    CPC classification number: F16D65/123 ,  B22D19/00 ,  B22D19/0081 ,  F16D65/128 ,  F16D2065/1316 ,  F16D2065/1328 ,  F16D2065/1356 ,  F16D2065/1376 ,  F16D2065/1388

    Abstract: A number of variations may include a brake disc may include a hub portion and a cheek portion. The hub portion may include a receiving flange for mechanically engaging the cheek portion. The cheek portion may include an upper cheek and a lower cheek connected and separated by a web, and an inner flange extending radially inward from the upper cheek to mechanically engage and communicate with the receiving flange of the hub portion such that the hub portion and the cheek portion form a single brake disc. The inner flange may include a at least one spline tooth circumferentially arranged around the inner flange and constructed and arranged to facilitate the mechanical engagement of the receiving flange and the inner flange.

    Abstract translation: 许多变型可以包括制动盘可以包括轮毂部分和脸颊部分。 毂部分可以包括用于机械地接合面颊部分的接收凸缘。 脸颊部分可以包括由腹板连接和分隔的上颊部和下颊部，以及从上颊部向内径向延伸的内凸缘，以与轮毂部分的接收凸缘机械接合并连通，使得轮毂部分和 脸颊部分形成单个制动盘。 内凸缘可以包括围绕内凸缘周向布置的至少一个花键齿，并被构造和布置成便于接收凸缘和内凸缘的机械接合。

    Ferrous workpiece and method of manufacture
    10.
    发明授权
    Ferrous workpiece and method of manufacture 有权

    公开(公告)号：US11231079B2

    公开(公告)日：2022-01-25

    申请号：US16509015

    申请日：2019-07-11

    Applicant: GM Global Technology Operations LLC

    Inventor： Henry Zhan ,  Jianfeng Wang ,  Michael L. Holly ,  Mark T. Riefe

    IPC: F16D65/10 ,  B60T1/06 ,  F16D65/12

    Abstract: A method for manufacturing a ferrous rotational member including the steps of turning a first portion of the friction surface at a sufficient feed rate to provide a first deformed layer on the first portion of the friction surface; fine turning a second portion of the friction surface at a sufficient feed rate to provide a second deformed layer on the second portion of the friction surface; burnishing the first and second portions of the friction surface to achieve a predetermined roughness; and nitrocarburizing the rotational member at a time and temperature sufficient for the diffusion of nitrogen atoms and carbon atoms through the deformed layer to form hardened casings having variable thickness. The ferrous rotational member may be that of a brake rotor having a hub surface and a friction surface, where the hub surface and friction surface have a variable thickness hardened casing.

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