Title:
Construction machinery provided with a motor controlling device and it
Document Type and Number:
Japanese Patent JP6226565
Kind Code:
B2
Abstract:
There is provided a motor controller capable of suppressing the rotation of a motor at the time of discharging an electric accumulator, and a construction machine provided with the motor controller. A motor controller (10) is provided with a current controller (1) for controlling an electric current supplied from an electric accumulator (E) to a motor (M), and a rotation detector (2) for detecting the rotation of the motor (M). The current controller (1) supplies only a d-axis current to the motor (M) according to a discharge command. If the rotation of the motor (M) is detected by the rotation detector (2) at the time of discharging the electric accumulator (E), the current controller (1) controls the d-axis current so as to suppress the rotation of the motor (M).
Inventors:
Takeshi Tomisaki
Yuichi Hamaguchi
Takeo Ito
Nakazumi Akira
Yusuke Uemura
Yuichi Hamaguchi
Takeo Ito
Nakazumi Akira
Yusuke Uemura
Application Number:
JP2013113580A
Publication Date:
November 08, 2017
Filing Date:
May 30, 2013
Export Citation:
Assignee:
Sinfonia Technology Co., Ltd.
Kobelco Construction Machinery Co., Ltd.
Kobelco Construction Machinery Co., Ltd.
International Classes:
H02P6/12; H02P6/06; H02P6/08; H02P6/17; H02P6/28; H02P21/22
Domestic Patent References:
| JP2007244070A | ||||
| JP2009108551A | ||||
| JP2009052339A |
Attorney, Agent or Firm:
Suzuki Kazuaki