Title:
【発明の名称】ロータ位置検出手段の異常検出装置及び異常検出方法並びにモータ制御装置
Document Type and Number:
Japanese Patent JP3331753
Kind Code:
B2
Abstract:
An abnormality detecting system, for detecting an abnormality in a rotor position detector for detecting a magnetic pole position of a motor, includes a speed calculator for calculating the speed of the motor, and an abnormality detector for detecting an abnormality in the rotor position detector. A method for detecting an abnormality in rotor position includes calculating a instantaneous speed and average speed of the motor, judging whether or not the absolute value of a difference between the instantaneous speed and the average speed is greater than a set value, and, when it has been judged that the absolute value of the difference therebetween is greater than the set value, detecting an abnormality in the rotor position detecting means. A motor control system includes the rotor position detector, torque instruction value detector, a PWM signal control device, an inverter, the speed calculator, the abnormality detector, and a PW signal interrupter.
Inventors:
Hiroyuki Kojima
Akira Suzuki
Yutaka Hotta
Akira Suzuki
Yutaka Hotta
Application Number:
JP15996194A
Publication Date:
October 07, 2002
Filing Date:
July 12, 1994
Export Citation:
Assignee:
Aisin AW Co., Ltd.
International Classes:
H02P6/12; B60L3/00; B60L11/18; G01R31/28; (IPC1-7): H02P6/12
Domestic Patent References:
| JP6178586A | ||||
| JP530642A | ||||
| JP354394A | ||||
| JP613397U |
Attorney, Agent or Firm:
Kawai Makoto (1 person outside)