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US 2014/0312824 A1Published application
Servomotor Control Systems and Methods
AssigneeHorizon Hobby, LLC
InventorPaul Beard
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Abstract
Systems and methods for controlling servomotors are described herein. Servomotor controllers and related control circuitry are configured to generate control signals for controlling the servomotor. The control signals include directional control signals to control the rotational direction and position of the servomotor, and power control signals control the rotational speed and/or torque of the servomotor.
Claims20
A radio-controlled (RC) vehicle comprising:
- a servomotor comprising a servomotor shaft;
- and
- a servomotor controller configured to generate one or more control signals for controlling the servomotor, wherein at least one of the control signals is a power control signal based at least in part on:
- (i) a rotational speed of the servomotor based at least in part on a back electromotive force measured at the servomotor, and (ii) a rotational direction of the servomotor.
1 more element
A system comprising:
- a servomotor comprising a servomotor shaft;
- and
- control circuitry configured to generate one or more control signals for controlling the servomotor and a rotational position of the servomotor shaft, wherein the one or more control signals are based at least in part on:
- (i) servomotor braking caused by shorting two terminals of an H-bridge circuit configured to control a rotational speed and a rotational direction of the servomotor;
- (ii) a servomotor rotational speed based at least in part on a back electromotive force measured at the servomotor, and (iii) a servomotor rotational direction.
2 more elements
A method of controlling a servomotor comprising a servomotor shaft, the method comprising:
- determining a present rotational direction of the servomotor;
- determining a present rotational speed of the servomotor based at least in part on a back electromotive force measured at the servomotor;
- determining a present rotational velocity of the servomotor based at least in part on the determined rotational speed and determined rotational direction;
- generating at least one power control signal for controlling an amount of current applied to the servomotor based at least in part on the determined rotational velocity;
- and
- applying at least one servomotor control signal to the servomotor based at least in part on the at least one power control signal.
3 more elements
Dependencies are inferred from the claim text.