Title:
INVERTER DRIVING DEVICE, ELECTRIC BRAKE DEVICE AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
Japanese Patent JP2017055608
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an inverter driving device and an electric-driven system that can detect, with high accuracy, the offset amount of a current detection circuit for detecting motor current by using DC bus current without increasing the number of components, enhance the detection accuracy of the motor current by compensating for the detected offset amount, and properly control the motor.SOLUTION: An inverter driving device which controls the operation of an inverter device for converting DC power supplied from a power source and outputting three-phase AC power to a motor, detects DC bus current flowing between the power source and the inverter device, calculates an offset current component to be superimposed on a detection value obtained when two-phase current values out of three-phase AC current calculated based on the detection value of the DC bus current are substantially coincident with each other, and controls the operation of the inverter device based on a current value obtained by compensating for the offset current component.SELECTED DRAWING: Figure 1
Inventors:
SENOO MASAHIRO
YASUJIMA TOSHIYUKI
AOYANAGI SHIGEHISA
HARA TAKAFUMI
KASHIMA TOKUMI
KATO KAZU
YASUJIMA TOSHIYUKI
AOYANAGI SHIGEHISA
HARA TAKAFUMI
KASHIMA TOKUMI
KATO KAZU
Application Number:
JP2015179056A
Publication Date:
March 16, 2017
Filing Date:
September 11, 2015
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
H02P6/16
Domestic Patent References:
| JP2012105417A | 2012-05-31 | |||
| JP2008160915A | 2008-07-10 | |||
| JP2007159348A | 2007-06-21 | |||
| JP2004023920A | 2004-01-22 |
Attorney, Agent or Firm:
Yuji Toda