Title:
MOTOR CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/125591
Kind Code:
A3
Abstract:
A motor control system (100) include an inverter (30) configured to convert boosted direct-current electric power output from a boost converter (20) to alternating-current electric power and supply the alternating-current electric power to an alternating current motor (40), and a control unit (60) configured to adjust boosted voltage of the boost converter (20). The control unit (60) includes an optimal boosted voltage map (67) which defines optimal boosted voltage for operating the alternating current motor (40) with a required number of revolutions and required torque, and a boosted voltage changing program (68) that sets boosted voltage (direct-current high voltage VH) of the boost converter (20) to a voltage which is higher than an optimal boosted voltage VHs when the carrier frequency Fc is a predetermined threshold value Fc0 or lower.
Inventors:
OI SHOHEI (JP)
Application Number:
PCT/JP2015/052782
Publication Date:
January 14, 2016
Filing Date:
January 23, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
H02P27/08
Foreign References:
| US20130249451A1 | 2013-09-26 | |||
| US20090230901A1 | 2009-09-17 | |||
| US20100026217A1 | 2010-02-04 |
Attorney, Agent or Firm:
YKI PATENT ATTORNEYS (Kichijoji-Honcho Musashino-sh, Tokyo 04, JP)
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