Title:
VEHICLE POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/021007
Kind Code:
A1
Abstract:
[Problem] To provide a vehicle power conversion device in which silence inside and outside a vehicle can be improved by suppressing electromagnetic noise.
[Solution] The vehicle power conversion device of an embodiment controls a plurality of AC electric motors mounted on a motor mounting base and used for running a vehicle and is equipped with a plurality of inverter circuits and a plurality of control units. The inverter circuits supply three-phase AC power to corresponding AC electric motors among the plurality of AC electric motors. The control units generate control signals for on/off controlling a plurality of switching elements of said inverter circuits and perform PWM controls on corresponding inverter circuits among the plurality of inverter circuits. Said control units perform the PWM controls on said corresponding inverter circuits by using the control signals generated using carrier waves having mutually different phases, wherein the phase difference between said carrier waves is based on the number of said AC electric motors mounted on said motor mounting base.
Inventors:
TAKAGI TAKASHI (JP)
Application Number:
PCT/JP2014/070751
Publication Date:
February 11, 2016
Filing Date:
August 06, 2014
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
H02P5/74; B60L9/16; H02M7/48
Foreign References:
| JPH06165307A | 1994-06-10 | |||
| JP2012222847A | 2012-11-12 | |||
| JP2009268265A | 2009-11-12 | |||
| JP2005160185A | 2005-06-16 | |||
| JP2002051566A | 2002-02-15 |
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Katsunuma Hirohito (JP)
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