Motor drive feedback control for a child motion device
First Claim
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1. A child motion device comprising:
- a frame assembly configured to rest on a floor surface;
a child supporting device supported above the floor surface by the frame assembly;
a motor supported by the frame assembly;
a drive system coupled to the motor to produce movement of the child supporting device along a motion path comprising reciprocating strokes;
one or more sensors responsive to the movement to generate feedback information indicative of direction of the movement and indicative of position along the motion path; and
,a motor control circuit coupled to the sensor to determine a time interval, based on the feedback information, in which to apply power to the motor during each reciprocating stroke.
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Abstract
A child motion device includes a motor, a drive system coupled to the motor to produce movement along a motion path having reciprocating strokes, and a sensor responsive to the movement to generate feedback information indicative of the movement. The child motion device further includes a motor control circuit coupled to the sensor to determine, based on the feedback information, when to apply power to the motor during each reciprocating stroke. In some cases, the feedback information is indicative of a position of the motor such that the motor control circuit applies the power to the motor for a duration of time that begins after an end of each reciprocating stroke.
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Citations
28 Claims
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1. A child motion device comprising:
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a frame assembly configured to rest on a floor surface; a child supporting device supported above the floor surface by the frame assembly; a motor supported by the frame assembly; a drive system coupled to the motor to produce movement of the child supporting device along a motion path comprising reciprocating strokes; one or more sensors responsive to the movement to generate feedback information indicative of direction of the movement and indicative of position along the motion path; and
,a motor control circuit coupled to the sensor to determine a time interval, based on the feedback information, in which to apply power to the motor during each reciprocating stroke. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A child motion device comprising:
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a frame assembly; a support arm cantilevered from the frame assembly; a motor supported by the frame assembly; a drive system supported by the frame assembly and coupled to the support arm and the motor to produce movement of the support arm along a motion path comprising reciprocating strokes; one or more sensors responsive to the movement to generate feedback information indicative of direction of the movement and indicative of position along the motion path; and a motor control circuit coupled to the sensor to determine a time interval, based on the feedback information, in which to apply power to the motor during each reciprocating stroke. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification