Control device for actuator, actuator, valve driving device and control method for actuator
First Claim
1. A control device for an actuator, the actuator including a shaft for adjusting a degree of opening of an object to be driven which is mounted in a vehicle, a motor for causing the shaft to reciprocate in an axial direction, and a position sensor for detecting a position of the shaft, the control device controlling the motor to move the shaft to a new position based on feedback control, comprising:
- a feedback controller to perform feedback control on the actuator by using a reference position in the axial direction of the shaft in such a way that the position of the shaft detected by the position sensor gets close to a target position; and
a position learner to, when an operation of an engine of the vehicle is not obstructed and when the vehicle is travelling in a period during which the engine is operating, learn the reference position.
1 Assignment
0 Petitions
Accused Products
Abstract
A control device for an actuator learns a reference position of a shaft when the operation of the engine of a vehicle is not obstructed in a period during which the engine is operating, and performs feedback control by using the reference position learned thereby in such a way that the position of the shaft detected by a position sensor gets close to a target position.
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Citations
8 Claims
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1. A control device for an actuator, the actuator including a shaft for adjusting a degree of opening of an object to be driven which is mounted in a vehicle, a motor for causing the shaft to reciprocate in an axial direction, and a position sensor for detecting a position of the shaft, the control device controlling the motor to move the shaft to a new position based on feedback control, comprising:
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a feedback controller to perform feedback control on the actuator by using a reference position in the axial direction of the shaft in such a way that the position of the shaft detected by the position sensor gets close to a target position; and a position learner to, when an operation of an engine of the vehicle is not obstructed and when the vehicle is travelling in a period during which the engine is operating, learn the reference position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control method for an actuator including a shaft for adjusting a degree of opening of an object to be driven which is mounted in a vehicle, a motor for causing the shaft to reciprocate in an axial direction, and a position sensor for detecting a position of the shaft, the method for controlling the motor to move the shaft to a new position based on feedback control, comprising:
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in a feedback controller of a control device, performing feedback control on the actuator by using a reference position in the axial direction of the shaft in such a way that the position of the shaft detected by the position sensor gets close to a target position, and in a position learner of the control device, learning the reference position when an operation of an engine of the vehicle is not obstructed and when the vehicle is traveling in a period during which the engine is operating.
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Specification