Position control method by motor drive and control unit
First Claim
1. A position control method by motor drive comprising:
- rotating a rotor of said motor drive according to the given target opening, and detecting the opening of a movable vane by an encoder, said motor opening and shutting a passage of an intake air pipe to a turbo charger of an automobile by the movable vane, andcontrolling the movable vane in the passage of said intake air pipe to reach the target opening,whereinthe rotational position of the motor drive is controlled to a stop position in the direction where said movable vane is closed, and a stop position in the direction where said movable vane is opened, andthe motor drive is controlled so that the passage of the intake air pipe becomes the target opening by setting said stop position as an operation reference position of said motor drive, and setting between said stop positions as driving dynamic range of said motor.
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Accused Products
Abstract
A position control method by motor drive including of rotating a rotor of the motor drive according to the given target opening, and detecting the opening of a movable vane by an encoder, the motor drive opening and shutting a passage of an intake air pipe to a turbo charger of the automobile by the movable vane, and controlling the movable vane in the passage of the intake air pipe so that it reaches the target opening. The rotational position of the motor drive is controlled to the stop position in the direction where the movable vane is closed and the stop position in the direction where the movable vane is opened. The motor drive is controlled so that the passage of the intake air pipe becomes the target opening by setting the stop position as an operation reference position of the motor drive, and setting between the stop positions as the driving dynamic range motor drive.
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Citations
23 Claims
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1. A position control method by motor drive comprising:
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rotating a rotor of said motor drive according to the given target opening, and detecting the opening of a movable vane by an encoder, said motor opening and shutting a passage of an intake air pipe to a turbo charger of an automobile by the movable vane, and controlling the movable vane in the passage of said intake air pipe to reach the target opening, wherein the rotational position of the motor drive is controlled to a stop position in the direction where said movable vane is closed, and a stop position in the direction where said movable vane is opened, and the motor drive is controlled so that the passage of the intake air pipe becomes the target opening by setting said stop position as an operation reference position of said motor drive, and setting between said stop positions as driving dynamic range of said motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A position control unit by motor drive comprising:
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a control unit including an interface circuit, a central processing unit and a motor driver which drives a motor drive according to a target opening signal; and a motor rotational position detecting unit provided on an output shaft of the motor; and an adjustable link united with the output shaft of the motor drive, which controls opening and shutting of a movable vane in an intake air pipe to a turbocharger of an automobile according to the revolution of the motor drive; wherein said motor is rotated to the stop position of said turbo charger in a direction where the intake air pipe is shut and the stop position in a direction where the intake air pipe is opened by the motor drive, and the position between said stop positions is set as an operation reference position when said motor works. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification