Asymmetric control system for a sensorless and brushless electric motor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02P-023/12
H02P-001/04
출원번호
UP-0916917
(2006-06-07)
등록번호
US-7750585
(2010-07-26)
우선권정보
EP-05012654(2005-06-13)
국제출원번호
PCT/EP2006/062965
(2006-06-07)
§371/§102 date
20071212
(20071212)
국제공개번호
WO06/134047
(2006-12-21)
발명자
/ 주소
Schwarzkopf, Johannes
출원인 / 주소
Siemens VDO Automotive AG
대리인 / 주소
Westman, Champlin & Kelly, P.A.
인용정보
피인용 횟수 :
3인용 특허 :
12
초록▼
A particularly high level of performance in a sensorless, electronically commutated multiphase electric motor can be achieved, wherein for one full cycle at least, one motor phase is controlled in an asymmetrical manner relative to a further motor phase by controlling a commutation angle of one moto
A particularly high level of performance in a sensorless, electronically commutated multiphase electric motor can be achieved, wherein for one full cycle at least, one motor phase is controlled in an asymmetrical manner relative to a further motor phase by controlling a commutation angle of one motor phase by reduction relative to a corresponding commutation angle of the other motor phase. Alternatively or in addition, according to the aforementioned method, at least one motor phase is asymmetrically controlled by reduction by self-reference for a full cycle, a commutation angle being controlled by reduction relative to a preceding or subsequent commutation angle or the size of the intermediate angles between two commutation angles being varied, the reduced commutation angle always being preceded or followed by a measurement angle within which the relevant motor phase is switched at zero current for detecting the rotor position by measuring the counter-electromotive force.
대표청구항▼
What is claimed is: 1. A method for the commutation of the motor phases of a multi-phase electric motor, comprising the steps of: controlling for one full cycle at least one motor phase in such a manner relative to a further motor phase that a commutation angle of one motor phase is controlled in a
What is claimed is: 1. A method for the commutation of the motor phases of a multi-phase electric motor, comprising the steps of: controlling for one full cycle at least one motor phase in such a manner relative to a further motor phase that a commutation angle of one motor phase is controlled in a shortened way with respect to a corresponding commutation angle of the other motor phase, and controlling for one full cycle at least one motor phase in such a manner that a commutation angle is controlled in a shortened way with respect to a preceding or subsequent commutation angle and that intermediate angles of different sizes between two commutation angles are provided, wherein the shortened commutation angle is preceded or followed by a measurement angle within which the relevant motor phase is switched at zero current for detecting a rotor position by measuring the counter-electromotive force. 2. The method according to claim 1, wherein the shortened commutation angle is from 120° to 165° and wherein the corresponding unshortened commutation angle is from 150° to 170° . 3. The method according to claim 1, wherein exactly one commutation angle is controlled in a shortened way per full electric cycle. 4. The method according to claim 1, wherein with bipolar commutation of the electric motor each motor phase is controlled with exactly one shortened commutation angle and exactly one unshortened commutation angle per full cycle, wherein only the commutation angle associated with the lower or the upper half-waves of the bipolar control are shortened. 5. The method according to claim 1, wherein with bipolar commutation both commutation angles of a phase are controlled in a shortened way compared with the corresponding commutation angles of the or each other phase. 6. The method according to claim 1, wherein the electric motor is operated with advanced ignition. 7. A device for the commutation of the motor phases of a multi-phase electric motor, comprising a converter circuit for commutation of the motor phases and comprising a control unit which is constructed for controlling the converter circuit according to the method of claim 1. 8. A method for the commutation of the motor phases of a multi-phase electric motor, comprising the steps of: controlling for one full cycle at least one motor phase in such a manner relative to a further motor phase that a commutation angle of one motor phase is controlled in a shortened way with respect to a corresponding commutation angle of the other motor phase, or controlling for one full cycle at least one motor phase in such a manner that a commutation angle is controlled in a shortened way with respect to a preceding or subsequent commutation angle or that intermediate angles of different sizes between two commutation angles are provided, wherein the shortened commutation angle is preceded or followed by a measurement angle within which the relevant motor phase is switched at zero current for detecting a rotor position by measuring the counter-electromotive force. 9. The method according to claim 8, wherein the shortened commutation angle is from 120° to 165° and wherein the shortened commutation angle is from 150° to 170° . 10. The method according to claim 8, wherein exactly one commutation angle is controlled in a shortened way per full electric cycle. 11. The method according to claim 8, wherein with bipolar commutation of the electric motor each motor phase is controlled with exactly one shortened commutation angle and exactly one shortened commutation angle per full cycle, wherein only the commutation angle associated with the lower or the upper half-waves of the bipolar control are shortened. 12. The method according to claim 8, wherein with bipolar commutation both commutation angles of a phase are controlled in a shortened way compared with the corresponding commutation angles of the or each other phase. 13. The method according to claim 8, wherein the electric motor is operated with advanced ignition. 14. A device for the commutation of the motor phases of a multi-phase electric motor, comprising a converter circuit for commutation of the motor phases and comprising a control unit which is constructed for controlling the converter circuit according to the method of claim 8. 15. A method for the commutation of the motor phases of a multi-phase electric motor, comprising the steps of: controlling for one full cycle at least one motor phase in such a manner relative to a further motor phase that a commutation angle of one motor phase is controlled in a shortened way with respect to a corresponding commutation angle of the other motor phase, or controlling for one full cycle at least one motor phase in such a manner that a commutation angle is controlled in a shortened way with respect to a preceding or subsequent commutation angle and that intermediate angles of different sizes between two commutation angles are provided, wherein the shortened commutation angle is preceded or followed by a measurement angle within which the relevant motor phase is switched at zero current for detecting a rotor position by measuring the counter-electromotive force. 16. The method according to claim 15, wherein the shortened commutation angle is from 120° to 165° and wherein the corresponding shortened commutation angle is from 150° to 170° . 17. The method according to claim 15, wherein exactly one commutation angle is controlled in a shortened way per full electric cycle. 18. The method according to claim 15, wherein with bipolar commutation of the electric motor each motor phase is controlled with exactly one shortened commutation angle and exactly one shortened commutation angle per full cycle, wherein only the commutation angle associated with the lower or the upper half-waves of the bipolar control are shortened. 19. The method according to claim 15, wherein with bipolar commutation both commutation angles of a phase are controlled in a shortened way compared with the corresponding commutation angles of the or each other phase. 20. The method according to claim 15, wherein the electric motor is operated with advanced ignition. 21. A device for the commutation of the motor phases of a multi-phase electric motor, comprising a converter circuit for commutation of the motor phases and comprising a control unit which is constructed for controlling the converter circuit according to the method of claim 15.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (12)
Boyd John H. ; Duncan Gerald,NZX ; Perry Michael Thomas George,NZX, Brushless DC motor control.
Viti Marco,ITX ; Boscolo Michele,ITX ; Salina Alberto,ITX, Detection of instantaneous position of the rotor of a brushless DC motor driven in a tripolar mode.
Sood Pradeep K. (St. Louis MO) Skinner james L. (Florissant MO) Petty Douglas M. (Clayton MO), Method and apparatus of operating a dynamoelectric machine using DC bus current profile.
Buzan Forrest T. ; Lansberry Geoffrey B. ; Szolusha Keith D., Motor vehicle alternator having a single voltage sensor and a half-wave controlled rectifier bridge for increasing output.
Maeda, Hirohito; Ikeda, Motonobu; Yagi, Satoshi; Shimatani, Keisuke; Hashimoto, Masafumi, Motor control method, motor control device, fan device, compressor, and pump device.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.