发明名称 |
Motor assembly allowing output in multiple degrees of freedom |
摘要 |
A motor allowing multiple degrees of output freedom. The motor includes a stator having an interior surface forming at least a portion of a sphere or curved surface and first and second substantially orthogonally positioned stator coils wound on the interior surface. A rotor is fixed to the output shaft and movably supported adjacent the stator with an air gap disposed between the rotor and the stator. The rotor includes a plurality of magnets disposed thereon and is movable along the interior surface in directions defining at least first and second degrees of freedom. Upon energization of the first stator coil, a first magnetic field is established to force at least a first one of the magnets and the rotor in a direction in the first degree of freedom. Upon energization of the second stator coil, a second magnetic field is established to force at least a second one of the magnets and the rotor in a direction in the second degree of freedom. There is also provided a method of providing force feedback to joystick handle in response to manipulation of the handle by a user. The method includes: providing a motor consistent with the invention for driving the joystick; sensing a position of the joystick; and energizing at least one of the coils based on the sensed position to establish the feedback force against at least a first one of the magnets and the rotor.
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申请公布号 |
US6320284(B1) |
申请公布日期 |
2001.11.20 |
申请号 |
US19990470077 |
申请日期 |
1999.12.22 |
申请人 |
ENGINEERING MATTERS, INC. |
发明人 |
FONTANA RICHARD REMO;CORCORAN CHRISTOPHER J. |
分类号 |
G05G9/047;(IPC1-7):G05G9/047 |
主分类号 |
G05G9/047 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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