Title:
電動機の誤動作を検出するための方法および装置
Document Type and Number:
Japanese Patent JP2014504144
Kind Code:
A
Abstract:
A method for detecting the malfunction in a three-phase synchronous electric machine by modulating variables. Two variables, which influence the torque of the electric machine are modulated. The first variable represents the q component of the stator current. The second variable represents the rotor flux. The variables are modulated by superimposing on their base signals, a test signal. Under faultless operation of the machine, there is no effect caused by the modulated variables on an electrical or magnetic parameter of the machine. When the modulated variables cause an effect on an electrical or magnetic parameter of the machine, a fault condition is detected.
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Inventors:
Falkenstein, Jens-Werner
Application Number:
JP2013550784A
Publication Date:
February 13, 2014
Filing Date:
December 07, 2011
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
H02P29/00; H02P27/06
Domestic Patent References:
| JP2004096979A | 2004-03-25 | |||
| JP2009183062A | 2009-08-13 | |||
| JP2009001055A | 2009-01-08 | |||
| JPH08123553A | 1996-05-17 | |||
| JP2006050803A | 2006-02-16 | |||
| JP2007501597A | 2007-01-25 | |||
| JPH08123553A | 1996-05-17 | |||
| JP2007501597A | 2007-01-25 | |||
| JP2006050803A | 2006-02-16 | |||
| JP2010081664A | 2010-04-08 | |||
| JP2009006985A | 2009-01-15 |
Foreign References:
| US20100320953A1 | 2010-12-23 |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Yamazaki Kosaku
Takahiko Ieari
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Yamazaki Kosaku
Takahiko Ieari