Title:
An electromotive drive and a method for controlling the same
Document Type and Number:
Japanese Patent JP6230749
Kind Code:
B2
Abstract:
Provided is an electric drive device which controls a current supplied to coils during normal operation so as to be less than a current limit value when normal, which is determined from heat generating properties and heat radiating properties of a thermally coupled body that includes the coils and an inverter circuit. When an abnormality in each group or each phase of the coils and the inverter circuit is detected, the supply of current to all phases of a group suffering an abnormality in the coils, or to a phase that is not capable of continuous operation, is stopped or reduced; and the limit value of the current supplied to a coil that is capable of continuous operation is reset to a current limit value in the event of abnormality, which is larger than the current limit value when normal, within the range of improvement of the heat generating properties of the thermally coupled body due to the stopping or reduction of the supply of current.
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Inventors:
Akira Furukawa
Yu Kawano
Yu Kawano
Application Number:
JP2017501560A
Publication Date:
November 15, 2017
Filing Date:
February 23, 2015
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02P29/028; H02P25/22; H02P27/04
Domestic Patent References:
| JP2013236486A | ||||
| JP3953932B2 | ||||
| JP2011098625A | ||||
| JP2014027770A | ||||
| JP2014143841A |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Yoshiyuki Tamura
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Yoshiyuki Tamura