Title:
DEVICE FOR CONTROLLING ELECTRIC MOTOR AND METHOD FOR CONTROLLING ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2013/137146
Kind Code:
A1
Abstract:
This device for controlling an electric motor is provided with: an electric motor constant generation unit that generates an electric motor constant with temperature as a parameter; a current control unit that generates a current command value for the electric motor on the basis of the electric motor constant and a torque command value; a voltage phase control unit that calculates a torque estimate value for the electric motor on the basis of a torque computation formula, and executes a voltage phase control mode that performs a feedback operation on the voltage phase on the basis of the deviation between the torque estimate value and the torque command value; and a control mode switch that switches to the voltage phase control mode in a high rotation region for performing weak magnetic flux control. In calculating the torque estimate value, an electric motor constant common to generating the current command value in the current control mode is used.
Inventors:
SHOUJI MITSUHIRO (JP)
Application Number:
PCT/JP2013/056484
Publication Date:
September 19, 2013
Filing Date:
March 08, 2013
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
H02P21/00; H02P21/05; H02P21/14; H02P21/16; H02P21/18; H02P21/22; H02P21/24; H02P23/04; H02P23/14; H02P23/28; H02P27/04; H02P27/08
Foreign References:
| JP2007159368A | 2007-06-21 | |||
| JP2010200430A | 2010-09-09 | |||
| JP2002369598A | 2002-12-20 | |||
| JPH0951700A | 1997-02-18 | |||
| JP2007159368A | 2007-06-21 |
Other References:
See also references of EP 2827493A4
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
Masaki Goto (JP)
Masaki Goto (JP)
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