Closed-loop steering control mechanism
First Claim
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1. A closed-loop steering control mechanism for a remote-controlled toy comprising a steering controller, a steering mechanism and a position sensing device wherein:
- said steering mechanism comprises movable parts which can cause the said toy to steer between first and second extreme steering positions,said steering controller comprises means for controlling said steering mechanism to steer to a plurality of pre-determined steering positions between the said first and second extreme steering positions in a response to a signal received from a remote controller,said position sensing device comprises a plurality of position identifying means corresponding to the said pre-determined steering positions,each said position identifying means is characterised by a unique position-identifying signal, said position sensing device further comprises means for selectively picking up the position identifying signal which corresponds to the instantaneous steering position, andsaid steering controller further comprises means for receiving said position identifying signal, thereby determining the instantaneous steering position, comparison means for comparing said instantaneous steering position with a selected pre-determined steering position, and means for generating a steering output signal dependent on the result of said comparison.
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Abstract
A simple, low-cost but efficient closed-loop steering control mechanism for a remote-controlled toy which can be utilised to quickly steer a mobile toy to a plurality of pre-determined steering orientations by comparing feedback signals from the steering mechanism with a two-component reference signal which is unique for each specific steering position and is generated by a steering controller in response to instructions from a remote controller.
11 Citations
13 Claims
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1. A closed-loop steering control mechanism for a remote-controlled toy comprising a steering controller, a steering mechanism and a position sensing device wherein:
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said steering mechanism comprises movable parts which can cause the said toy to steer between first and second extreme steering positions, said steering controller comprises means for controlling said steering mechanism to steer to a plurality of pre-determined steering positions between the said first and second extreme steering positions in a response to a signal received from a remote controller, said position sensing device comprises a plurality of position identifying means corresponding to the said pre-determined steering positions, each said position identifying means is characterised by a unique position-identifying signal, said position sensing device further comprises means for selectively picking up the position identifying signal which corresponds to the instantaneous steering position, and said steering controller further comprises means for receiving said position identifying signal, thereby determining the instantaneous steering position, comparison means for comparing said instantaneous steering position with a selected pre-determined steering position, and means for generating a steering output signal dependent on the result of said comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A steering control mechanism for controlling a remote-controlled toy comprising a steering controller, a steering mechanism and a position sensing device wherein:
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said steering mechanism can be controlled to steer in a plurality of pre-determined positions between first and second extreme steering position, said steering controller controls said steering mechanism to steer to a designated steering position, and said steering controller comprises means to damp the steering motion at the instant at which the steering mechanism transits from a non-designated steering position to a designated steering position. - View Dependent Claims (10, 11, 12, 13)
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Specification