Control device for actuator, actuator, valve driving device and abnormality detecting method for actuator
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-031/04
F16K-037/00
F02D-013/02
H02K-011/21
H02P-029/024
F02B-037/18
F02D-041/22
F16K-001/16
H02K-007/06
F16K-031/52
F16K-001/20
F16K-031/44
F02D-041/04
출원번호
US-0540741
(2015-04-06)
등록번호
US-10234056
(2019-03-19)
국제출원번호
PCT/JP2015/060742
(2015-04-06)
국제공개번호
WO2016/162924
(2016-10-13)
발명자
/ 주소
Kawamura, Satoshi
Hatano, Kenta
출원인 / 주소
Mitsubishi Electric Corporation
대리인 / 주소
Birch, Stewart, Kolasch & Birch, LLP
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
A control device for a WG actuator includes a feedback control unit for performing feedback control on the WG actuator in such a way that the position of a shaft detected by a position sensor gets close to a target position, and an abnormality detecting unit for providing an instruction to move the
A control device for a WG actuator includes a feedback control unit for performing feedback control on the WG actuator in such a way that the position of a shaft detected by a position sensor gets close to a target position, and an abnormality detecting unit for providing an instruction to move the shaft in an axial direction for the feedback control unit, and for detecting an abnormality in the WG actuator on the basis of a result of a movement of the shaft, the movement being detected by the position sensor while the feedback control unit performs the instruction.
대표청구항▼
1. A control device for an actuator, the actuator including a shaft, a motor for causing the shaft to make a reciprocating motion in an axial direction, and a position sensor for detecting a position of the shaft, the control device comprising: a feedback controller to perform feedback control on th
1. A control device for an actuator, the actuator including a shaft, a motor for causing the shaft to make a reciprocating motion in an axial direction, and a position sensor for detecting a position of the shaft, the control device comprising: a feedback controller to perform feedback control on the actuator in such a way that an actual position of the shaft detected by the position sensor gets close to a target position; andan abnormality detector to provide an instruction to move the shaft in the axial direction for the feedback controller, and to determine an abnormality in the actuator on a basis of a result of a movement of the shaft prior to use of the actuator, the movement being detected by the position sensor while the feedback controller performs the instruction,wherein the actuator drives an object to be driven by using the reciprocating motion in the axial direction of the shaft,the abnormality detector further determines, as a range in which the shaft is moved in the axial direction, a range of the target position in which the shaft is normally used, within a movable range of the object to be driven, and,the abnormality detector controls the actuator in the determined range. 2. The control device for the actuator according to claim 1, wherein the motor has a conductive path which is rotated integrally with a rotor, and a brush which is pressed onto the conductive path, and the abnormality detector sets a range within which the shaft is moved in an axial direction to a range within which the rotor makes one or more rotations. 3. The control device for the actuator according to claim 2, wherein the abnormality detector repeats the movement in an axial direction of the shaft multiple times. 4. The control device for the actuator according to claim 1, wherein the actuator is mounted in a vehicle, and the abnormality detector performs detection of an abnormality in the actuator when an engine of the vehicle is started or stopped. 5. A driving device comprising: the actuator and the control device according to claim 1. 6. A valve driving device comprising: the actuator and the control device according to claim 1; anda valve that is driven by the reciprocating motion in the axial direction of the shaft. 7. An abnormality detecting method for an actuator, the abnormality detecting method being used by a control device that performs feedback control on the actuator having a shaft, a motor for causing the shaft to make a reciprocating motion in an axial direction, and a position sensor for detecting a position of the shaft, in such a way that an actual position of the shaft detected by the position sensor gets close to a target position, and driving, by the actuator, an object to be driven by using the reciprocating motion in the axial direction of the shaft;by the control device, moving the shaft in the axial direction;determining an abnormality in the actuator on a basis of a result of a movement of the shaft prior to sue of the actuator, the movement being detected by the position sensor during the movement of the shaft;determining, as a range in which the shaft is moved in the axial direction, a range of the target position in which the shaft is normally used, within a movable range of the object to be driven; andcontrolling the actuator in the determined range.
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이 특허에 인용된 특허 (3)
Bendig Lothar (Ludwigsburg DEX), Electronically controlled combustion air mixing valve for internal combustion engines.
Seethaler, Rudolf; Lamprecht, Martin, Method for calibration of a sensor on a rotational actuator device for control of a gas exchange valve in an internal combustion engine.
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