Title:
MOTOR CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2016208776
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a motor control system capable of continuing the control of a motor even when it is not possible to detect currents of a specific phase.SOLUTION: The motor control system includes: arithmetic parts 101a to 101c for performing a first arithmetic operation for calculating d-axis currents Id1 and q-axis currents Iq1 of a motor on the basis of U-phase currents and V-phase currents, a second arithmetic operation for calculating d-axis currents Id2 and q-axis currents Iq2 of the motor on the basis of V-phase currents and W-phase currents and a third arithmetic operation for calculating d-axis currents Id3 and q-axis currents Iq3 of the motor on the basis of the U-phase currents and the W-phase currents; a comparison and determination unit 120 for setting the d-axis currents and q-axis currents which satisfy a predetermined quantitative value among the calculated d-axis currents Id1 to Id3 and q-axis currents Iq1 to Iq3 as a normal value, and for setting the d-axis currents and q-axis currents which do not satisfy the predetermined quantitative value as an abnormal value, and for selecting the normal value to control the motor; and a motor control circuit board.SELECTED DRAWING: Figure 2
Inventors:
NAGANO MASAHARU
Application Number:
JP2015091053A
Publication Date:
December 08, 2016
Filing Date:
April 28, 2015
Export Citation:
Assignee:
CALSONIC KANSEI CORP
International Classes:
H02P21/00; H02P27/04; H02P29/00
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu
Iwa Saki Kokuni
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu