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    Electric drive system including a stepper motor
    2.
    发明授权
    Electric drive system including a stepper motor 有权
    电驱动系统包括步进电机

    公开(公告)号：US06812663B2

    公开(公告)日：2004-11-02

    申请号：US10397449

    申请日：2003-03-26

    申请人： Dennis A. Kramer ,  Dale K. Bell ,  Clive Harrup ,  Mehmet S. Ciray ,  Silvio M. Yamada ,  Dean M. House ,  David K. Platner ,  Dale J. Eschenburg

    发明人： Dennis A. Kramer ,  Dale K. Bell ,  Clive Harrup ,  Mehmet S. Ciray ,  Silvio M. Yamada ,  Dean M. House ,  David K. Platner ,  Dale J. Eschenburg

    IPC分类号： H02K710

    CPC分类号： B60K7/0007 ,  B60K2007/0038 ,  B60K2007/0092 ,  B60L11/00 ,  B60L2220/44 ,  B60L2240/30

    摘要： A vehicle drive assembly includes an electric motor directly coupled to a rotatable member for driving a wheel, for example, without gear reduction assemblies between the motor output and the driven wheels. A multi-phase, high pulse current stepper motor is used as the motor in one example. A driven wheel is supported by a wheel mounting member in a conventional fashion. A rotatable member associated with the wheel mounting member is directly coupled to an output of the stepper motor. The stepper motor can selectively operate in several modes. A first mode provides driving torque to the vehicle wheels, a second mode provides a braking force and an optional third mode allows the stepper motor to serve as a parking brake.

    摘要翻译： 车辆驱动组件包括直接联接到用于驱动车轮的可旋转构件的电动机，例如，在电动机输出和从动轮之间没有齿轮减速组件。 在一个示例中，使用多相高脉冲电流步进电机作为电动机。 从动轮以常规方式由轮安装构件支撑。 与轮安装构件相关联的可旋转构件直接联接到步进电机的输出。 步进电机可以选择性地以多种方式工作。 第一模式向车轮提供驱动扭矩，第二模式提供制动力，并且可选的第三模式允许步进电机用作驻车制动器。

    Rotary motor using electrical linear actuators
    7.
    发明授权
    Rotary motor using electrical linear actuators 有权
    旋转电机采用电动线性执行机构

    公开(公告)号：US06794772B1

    公开(公告)日：2004-09-21

    申请号：US10413782

    申请日：2003-04-15

    申请人： Dale K. Bell ,  Dennis A. Kramer ,  Clive Harrup ,  Mehmet S. Ciray ,  Silvio M. Yamada ,  Dean M. House ,  David K. Platner ,  Dale J. Eschenburg

    发明人： Dale K. Bell ,  Dennis A. Kramer ,  Clive Harrup ,  Mehmet S. Ciray ,  Silvio M. Yamada ,  Dean M. House ,  David K. Platner ,  Dale J. Eschenburg

    IPC分类号： H02K706

    CPC分类号： H02K7/06 ,  Y10T74/18664

    摘要： An electric motor assembly is provided that includes a housing. A rotor is arranged in the housing and is rotatable about an axis. A vehicle wheel is coupled to the rotor. The rotor has an annular profile defining sinusoidal teeth and is generally concentric with the axis. The angle and number of oblique surfaces of the teeth and the diameter of the rotor, in part, define the speed and torque of the rotor. A plurality of electric linear actuators are arranged circumferentially about and generally parallel to the axis. The actuator includes shafts having ends that engage the profile. The shafts are movable between extended and retracted positions to rotate the rotor in a desired direction. A sensor detecting the position of the rotor and a controller may be used to effect the desired rotation.

    摘要翻译： 提供了包括壳体的电动机组件。 转子布置在壳体中并可围绕轴线旋转。 车轮联接到转子。 转子具有限定正弦齿的环形轮廓，并且与轴线大致同心。 齿的倾斜表面的角度和数量以及转子的直径部分地限定了转子的速度和转矩。 多个电动线性致动器围绕并且大致平行于轴线周向地布置。 致动器包括具有接合轮廓的端部的轴。 轴可在延伸位置和缩回位置之间移动，以使转子沿期望的方向旋转。 可以使用检测转子位置的传感器和控制器来实现期望的旋转。

    Planetary drive assembly with idlers for low floor vehicle
    9.
    发明授权
    Planetary drive assembly with idlers for low floor vehicle 有权
    行星传动组件，带低档车辆的惰轮

    公开(公告)号：US06755093B2

    公开(公告)日：2004-06-29

    申请号：US10059448

    申请日：2002-01-29

    申请人： John L. Bennett ,  Chihping Kuan ,  John K. Ma ,  William C. Sullivan ,  Edward J. Eshelman ,  Dean M. House ,  Tomaz Dopico Varela ,  Mark C. Smith

    发明人： John L. Bennett ,  Chihping Kuan ,  John K. Ma ,  William C. Sullivan ,  Edward J. Eshelman ,  Dean M. House ,  Tomaz Dopico Varela ,  Mark C. Smith

    IPC分类号： F16H5517

    CPC分类号： B60B35/002 ,  B60K17/046 ,  B60Y2200/1432 ,  F16H1/227 ,  Y10T74/1954 ,  Y10T74/19628 ,  Y10T74/19647 ,  Y10T74/19888

    摘要： A drive axle assembly for a low floor vehicle utilizes a single input gear assembly to drive a pair of laterally spaced wheel ends. The input gear assembly is positioned next to one of the wheel ends so that the vehicle floor can be lowered to facilitate passenger access to the vehicle. Each wheel end includes a gear reduction assembly with a ring gear rotatably mounted within a gear housing. A drive gear is operatively coupled to the input gear assembly and is in meshing engagement with the ring gear. The gear reduction assembly also includes an output or driven gear, which is larger than the drive gear, to provide the desired gear reduction. The driven gear is also in meshing engagement with the ring gear. A pair of idler gears is rotatably mounted within the gear housing and are in meshing engagement with both the drive and driven gear. The idler gears and drive gear do not have a common centerline. The assembly thus provides toothed contact via three gear sets combinations, which equalizes loading and eliminates the need for support bearings for the drive and driven gears.

    摘要翻译： 用于低地板车辆的驱动桥组件使用单个输入齿轮组件来驱动一对横向间隔开的轮端。 输入齿轮组件位于车轮端部之一旁边，使得可以降低车辆地板以便于乘客进入车辆。 每个车轮端部包括齿轮减速组件，其具有可旋转地安装在齿轮壳体内的齿圈。 驱动齿轮可操作地联接到输入齿轮组件并且与齿圈啮合。 齿轮减速组件还包括大于驱动齿轮的输出或从动齿轮，以提供所需的齿轮减速。 从动齿轮也与齿圈啮合。 一对空转齿轮可旋转地安装在齿轮箱内并与驱动齿轮和从动齿轮啮合。 空转齿轮和传动齿轮没有共同的中心线。 因此，该组件通过三个齿轮组合组合提供齿形接触，其均衡负载并且消除了用于驱动和从动齿轮的支撑轴承的需要。

    Brake drum cooling apparatus
    10.
    发明授权
    Brake drum cooling apparatus 有权
    制动鼓冷却装置

    公开(公告)号：US06698557B2

    公开(公告)日：2004-03-02

    申请号：US10228774

    申请日：2002-08-27

    申请人： Brian D. Hayes ,  Robert J. Martin, III ,  Dean M. House

    发明人： Brian D. Hayes ,  Robert J. Martin, III ,  Dean M. House

    IPC分类号： F16D5502

    CPC分类号： F16D65/827 ,  F16D65/10 ,  F16D2065/1332 ,  F16D2065/787

    摘要： A brake drum assembly includes an impeller and stator that help cool the brake drum. The impeller and stator combination are especially suited for low-speed vehicle operations. The impeller includes a plurality of impeller vanes formed about the circumference of the impeller that draw cooling air across the brake drum. The impeller is mounted to an external surface of the brake drum for rotation with the drum about an axis of rotation. The stator is held fixed with respect to the drum and includes a first portion that forms a circular band, which is positioned in an overlapping relationship to the impeller, and a second portion that is transverse to the first portion. The second portion extends radially inwardly toward the axis of rotation to form a vertical face. A plurality of stator vanes are formed within the vertical face that direct the airflow away from the brake drum toward an inboard direction that is generally parallel to the axis of rotation.

    摘要翻译： 制动鼓组件包括有助于冷却制动鼓的叶轮和定子。 叶轮和定子组合特别适用于低速车辆操作。 叶轮包括围绕叶轮的圆周形成的多个叶轮叶片，其将制冷气体横过制动鼓抽取。 叶轮安装到制动鼓的外表面上，以便随着滚筒绕旋转轴旋转。 定子相对于滚筒保持固定，并且包括形成与叶轮重叠关系的圆形带的第一部分和横向于第一部分的第二部分。 第二部分朝向旋转轴线径向向内延伸以形成垂直面。 在垂直面内形成多个定子叶片，其将气流从制动鼓朝向大致平行于旋转轴线的内侧方向引导。