SYSTEM AND METHOD FOR DETERMINING THE POSITION OF A MOVING PART DRIVEN BY AN ELECTRIC MOTOR
First Claim
1. A system for determining the position of a moving part driven by an electric motor, comprising:
- a single position sensor, coupled to the electric motor and configured to detect an incremental amount of movement thereof;
a direction switching arrangement, configured to control a current direction of movement of the electric motor; and
a control unit, coupled to the single position sensor and the direction switching arrangement, and configured, at each incremental amount of movement detected by the single position sensor, to determine a current position of the moving part based on a previous position thereof and the current direction of movement controlled by the direction switching arrangement.
1 Assignment
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Accused Products
Abstract
A system for determining the position of a moving part driven by an electric motor: a single position sensor, coupled to the electric motor, incrementally detects an amount of movement thereof; a direction switching arrangement controls a direction of movement of the electric motor; and a control unit, coupled to the single position sensor and the direction switching arrangement, at each incremental amount of movement detected by the single position sensor, determines a current position of the moving part based on a previous position thereof and the current direction of movement controlled by the direction switching arrangement.
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Citations
20 Claims
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1. A system for determining the position of a moving part driven by an electric motor, comprising:
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a single position sensor, coupled to the electric motor and configured to detect an incremental amount of movement thereof; a direction switching arrangement, configured to control a current direction of movement of the electric motor; and a control unit, coupled to the single position sensor and the direction switching arrangement, and configured, at each incremental amount of movement detected by the single position sensor, to determine a current position of the moving part based on a previous position thereof and the current direction of movement controlled by the direction switching arrangement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for determining the position of a moving part driven by an electric motor, the method comprising:
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incrementally detecting an amount of movement of the electric motor, by a single position sensor coupled thereto; providing an indication related to a current direction of movement of the electric motor, based on an operating status of a direction switching arrangement, configured to control a direction of movement of the electric motor; and at each incremental amount of movement detected by the single position sensor, determining a current position of the moving part based on a previous position thereof and the current direction of movement controlled by the direction switching arrangement. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification