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Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/032260
Kind Code:
A1
Abstract:
[Problem] To suppress load on a power supply for supplying power supply current to an electric motor even if variation in load occurs. [Solution] In the motor control device, an estimated value of power supply current supplied from a power supply BT to an inverter circuit 23 is calculated by a first calculation logic, and a torque limit value is obtained by a second calculation logic using the power supply current estimated value as a variable (parameter). A current command value is then calculated on the basis of the torque limit value, and a drive signal for an electric motor 15 is generated using a phase voltage command value obtained by converting the current command value.

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Inventors:
YOKOZUKA TAKUYA (JP)
ENDO SHUJI (JP)
NAKANE HAJIME (JP)
Application Number:
PCT/JP2019/031651
Publication Date:
February 13, 2020
Filing Date:
August 09, 2019
Export Citation:
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Assignee:
NIDEC ELESYS CORP (JP)
NIDEC CORP (JP)
International Classes:
H02P21/06; B62D6/00; H02P21/13; H02P27/06; B62D119/00; B62D137/00
Foreign References:
JP2017103918A2017-06-08
JP2005073381A2005-03-17
JP2009119899A2009-06-04
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