Title:
MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/093711
Kind Code:
A1
Abstract:
An anomaly detector determines whether or not the absolute value of a detected first electric current value Ix_hp and/or the absolute values of second electric current values Ix_lp exceed a first threshold I1 that is set corresponding to the limit value (±Ilim) of the electric current detection. The anomaly detector also determines whether or not the absolute value of a phase current value Ix thus detected is less than a second threshold I2 that is set corresponding to "0 (zero)." In the case of a phase that fulfills both of these two determination conditions, a determination is made that a sensor anomaly (a stiction anomaly) has occurred in the relevant phase.
Inventors:
ITO, Takehiro (5-8 Minamisemba 3-chome, Chuo-ku, Osaka-sh, Osaka 02, 〒5428502, JP)
Application Number:
JP2012/050144
Publication Date:
July 12, 2012
Filing Date:
January 06, 2012
Export Citation:
Assignee:
JTEKT CORPORATION (5-8 Minamisemba 3-chome, Chuo-ku Osaka-sh, Osaka 02, 〒5428502, JP)
株式会社ジェイテクト (〒02 大阪府大阪市中央区南船場三丁目５番８号 Osaka, 〒5428502, JP)
株式会社ジェイテクト (〒02 大阪府大阪市中央区南船場三丁目５番８号 Osaka, 〒5428502, JP)
International Classes:
H02P6/12; B62D5/04; B62D6/00; H02P29/00; B62D101/00; B62D119/00
Attorney, Agent or Firm:
UENO, Hideki (UPSC UENO PATENT OFFICE, 1-28-1-901 Higashi-Ikebukuro, Toshima-k, Tokyo 13, 〒1700013, JP)
Claims: