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    SYSTEM AND METHOD FOR STEERING A MULTI-WHEEL DRIVE VEHICLE
    1.
    发明申请
    SYSTEM AND METHOD FOR STEERING A MULTI-WHEEL DRIVE VEHICLE 审中-公开
    用于转向多轮驱动车辆的系统和方法

    公开(公告)号：WO02060742A2

    公开(公告)日：2002-08-08

    申请号：PCT/US0200952

    申请日：2002-01-15

    Applicant: INVACARE CORP

    Inventor： STROTHMANN THOMAS

    IPC: B62D7/15 ,  B62D9/00 ,  B62D11/04 ,  B62D6/00 ,  B62D11/00

    CPC classification number: B62D9/00 ,  B60G2800/963 ,  B60W2710/20 ,  B62D7/1509 ,  B62D11/04

    Abstract: A system and method of controlling a multi-wheel drive vehicle is provided. The invention is preferably applicable to the steering of such a vehicle and determines the individual velocities for each wheel drive. In this regard, the invention includes two general steps. The first step includes determining the distance of each wheel drive and a vehicle velocity reference point from a turning reference point. The second step includes ratioing each wheel drive's distance from the turning reference point with the vehicle velocity reference point's distance from the turning reference point. The ratios are then applied to a vehicle velocity associated with the vehicle velocity reference point to determine the velocity of each respective wheel drive. Once determined, the velocities are output to each wheel drive.

    Abstract translation: 提供了一种控制多轮驱动车辆的系统和方法。 本发明优选地适用于这种车辆的转向并确定每个车轮驱动的单独速度。 在这方面，本发明包括两个一般步骤。 第一步包括确定每个车轮驱动器的距离和车辆速度参考点与转动参考点的距离。 第二步包括将每个车轮驱动器与转向参考点的距离与车速参考点距离转弯参考点的距离进行比较。 然后将这些比率应用于与车辆速度参考点相关联的车辆速度，以确定每个相应车轮驱动器的速度。 一旦确定，速度被输出到每个车轮驱动。

    ELECTRIC MOTOR AND BRAKE ASSEMBLY
    3.
    发明专利
    ELECTRIC MOTOR AND BRAKE ASSEMBLY 未知

    公开(公告)号：CA2802730C

    公开(公告)日：2015-08-04

    申请号：CA2802730

    申请日：2011-06-15

    Applicant: INVACARE CORP

    Inventor： PANDYA NIRAV ,  TUCKOWSKI THOMAS ,  JINDRA JOHN ,  BEKOSCKE ROBERT ,  WATERMAN GEORGE H ,  STROTHMANN THOMAS

    IPC: B60K7/00 ,  A61G5/04 ,  B60T1/06 ,  F16D51/20 ,  F16D65/22 ,  H02K7/102

    Abstract: A motor and brake assembly for use in a variety of conveyances, such as a motorized wheelchair. The assembly has a mounting member, a stator winding assembly, a brake assembly, hub rotatable about a central axis having a radially outer wall that surrounds the stator winding assembly and the brake assembly such that the stator winding assembly and the brake assembly are between the radially outer wall of the hub and the central axis, a rotor magnet assembly mounted to an inside of the radially outer wall of the hub. The stator winding is radially inward of the rotor magnet and the radially outer wall of the hub and the brake assembly can move the brake assembly between an engaged position and a disengaged position.

    METHOD AND APPARATUS FOR EMBEDDING MOTOR ERROR PARAMETER DATA IN A DRIVE MOTOR OF A POWER DRIVEN WHEELCHAIR
    4.
    发明专利
    METHOD AND APPARATUS FOR EMBEDDING MOTOR ERROR PARAMETER DATA IN A DRIVE MOTOR OF A POWER DRIVEN WHEELCHAIR 未知

    公开(公告)号：CA2836638C

    公开(公告)日：2015-07-21

    申请号：CA2836638

    申请日：2004-09-16

    Applicant: INVACARE CORP

    Inventor： WAKEFIELD THEODORE D II ,  STROTHMANN THOMAS ,  CURRAN NEAL JOSEPH

    IPC: A61G5/04 ,  A61G5/10 ,  H02P6/16 ,  H02P31/00

    Abstract: A drive motor assembly for a power driven wheelchair comprising: a stator housing for containing field coils of a stator of the motor assembly; at least one sensor disposed in the stator housing for sensing rotation of the motor; a memory storing motor error parameter data including data of errors of the at least one sensor, the memory being embedded in the stator housing; and a connection for accessing the error parameter data of the memory from the stator housing. The motor error parameter data may be accessed from the embedded memory of the drive motor by a programmed motor controller for use in controlling the drive motor. Also, the motor error parameter data may be embedded in the drive motor by the steps of: controlling the motor through at least one predetermined drive pattern; sensing motor rotation during the drive pattern and generating signals representative thereof, deriving error parameter data of the drive motor from the generated signals; programming a memory with the derived error parameter data; and embedding the memory in the drive motor.

    Electric motor and brake assembly
    5.
    发明专利
    Electric motor and brake assembly 未知

    公开(公告)号：AU2011268382B2

    公开(公告)日：2014-11-27

    申请号：AU2011268382

    申请日：2011-06-15

    Applicant: INVACARE CORP

    Inventor： PANDYA NIRAV ,  TUCKOWSKI THOMAS ,  JINDRA JOHN ,  BEKOSCKE ROBERT ,  WATERMAN GEORGE H ,  STROTHMANN THOMAS

    IPC: B60K1/00

    Abstract: A motor and brake assembly includes a mounting member. A stator winding assembly, a brake assembly, a hub, and a rotor magnet assembly. The stator winding assembly is mounted to the mounting member. The brake assembly is operably connected to the mounting member. The hub is rotatably coupled to the mounting member. The rotor magnet assembly is mounted to an inside of a radially outer wall of the hub. The brake assembly is operable to move a component of the brake assembly between an engaged position where the component engages the inside of the radially outer hub wall and a disengaged position where the component is spaced apart from the inside of the radially outer hub wall.

    METHOD AND APPARATUS FOR EMBEDDING MOTOR ERROR PARAMETER DATA IN A DRIVE MOTOR OF A POWER DRIVEN WHEELCHAIR
    6.
    发明专利
    METHOD AND APPARATUS FOR EMBEDDING MOTOR ERROR PARAMETER DATA IN A DRIVE MOTOR OF A POWER DRIVEN WHEELCHAIR 未知

    公开(公告)号：CA2540620C

    公开(公告)日：2014-02-25

    申请号：CA2540620

    申请日：2004-09-16

    Applicant: INVACARE CORP

    Inventor： WAKEFILED THEODORE D II ,  STROTHMANN THOMAS ,  CURRAN NEAL JOSEPH

    IPC: H02P6/00 ,  A61G5/04 ,  A61G5/10 ,  H02P6/16

    Abstract: A drive motor assembly for a power driven wheelchair comprises: a stator housing for containing field coils of a stator of the motor assembly; at least one sensor disposed in the stator housing for sensing rotation of the motor; a memory storing motor error parameter data including data of errors of the at least one sensor, the memory being embedded in the stator housing; and a connection for accessing the error parameter data of the memory from the stator housing. The motor error parameter data may be accessed from the embedded memory of the drive motor by a programmed motor controller for use in controlling the drive motor. Also, the motor error parameter data may be embedded in the drive motor by the steps of : controlling the motor through at least one predetermined drive pattern; sensing motor rotation during the drive pattern and generating signals representative thereof, deriving error parameter data of the drive motor from the generated signals; programming a memory with the derived error parameter data; and embedding the memory in the drive motor.

    Electric motor and brake assembly
    7.
    发明专利
    Electric motor and brake assembly 未知

    公开(公告)号：AU2011268382A1

    公开(公告)日：2013-01-31

    申请号：AU2011268382

    申请日：2011-06-15

    Applicant: INVACARE CORP

    Inventor： PANDYA NIRAV ,  TUCKOWSKI THOMAS ,  JINDRA JOHN ,  BEKOSCKE ROBERT ,  WATERMAN GEORGE H ,  STROTHMANN THOMAS

    IPC: B60K1/00

    Abstract: A motor and brake assembly includes a mounting member. A stator winding assembly, a brake assembly, a hub, and a rotor magnet assembly. The stator winding assembly is mounted to the mounting member. The brake assembly is operably connected to the mounting member. The hub is rotatably coupled to the mounting member. The rotor magnet assembly is mounted to an inside of a radially outer wall of the hub. The brake assembly is operable to move a component of the brake assembly between an engaged position where the component engages the inside of the radially outer hub wall and a disengaged position where the component is spaced apart from the inside of the radially outer hub wall.

    ELECTRIC MOTOR AND BRAKE ASSEMBLY
    8.
    发明专利
    ELECTRIC MOTOR AND BRAKE ASSEMBLY 未知

    公开(公告)号：CA2887919A1

    公开(公告)日：2011-12-22

    申请号：CA2887919

    申请日：2011-06-15

    Applicant: INVACARE CORP

    Inventor： PANDYA NIRAV ,  TUCKOWSKI THOMAS ,  JINDRA JOHN ,  BEKOSCKE ROBERT ,  WATERMAN GEORGE H ,  STROTHMANN THOMAS

    IPC: B60K7/00 ,  A61G5/04 ,  B60T1/06 ,  F16D51/20 ,  F16D65/22 ,  H02K7/102

    Abstract: A motor and brake assembly includes a mounting member. A stator winding assembly, a brake assembly, a hub, and a rotor magnet assembly. The stator winding assembly is mounted to the mounting member. The brake assembly is operably connected to the mounting member. The hub is rotatably coupled to the mounting member. The rotor magnet assembly is mounted to an inside of a radially outer wall of the hub. The brake assembly is operable to move a component of the brake assembly between an engaged position where the component engages the inside of the radially outer hub wall and a disengaged position where the component is spaced apart from the inside of the radially outer hub wall.

    MOTORIZED WHEELCHAIR
    9.
    发明专利
    MOTORIZED WHEELCHAIR 未知

    公开(公告)号：CA2677751C

    公开(公告)日：2015-10-27

    申请号：CA2677751

    申请日：2008-01-31

    Applicant: INVACARE CORP

    Inventor： STROTHMANN THOMAS ,  RICHEY JOSEPH B II

    IPC: A61G5/04 ,  B60L11/18 ,  B60L15/10 ,  B60L15/20 ,  B60L50/11

    Abstract: A motorized wheelchair includes left and right drive wheels, left and right motors, rate-of-turn sensor, first and second speed sensors, and controller arranged to combine signals from the sensors in a manner that detects drift. Alternatively, the motorized wheelchair includes left and right drive wheels, left and right motors, first and second rate-of- turn sensors, and controller arranged to combine signals from the sensors in a, manner that compensates for voltage offset errors. In another arrangement, the motorized wheelchair includes left and right drive wheels, left and right motors, first and second rate-of-tum sensors, input device, and controller arranged to combine signals from the sensors and input device in a manner that controls the motors using an integrated tum rate error. Several methods for controlling each wheelchair configuration are also provided. These methods process signals associated with desired, expected, or actual turn rate to determine if the wheelchair is off course.

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