Title:
CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/044937
Kind Code:
A1
Abstract:
This control device (30) is applied to a system (100) provided with: a rotating electric machine (10) in which any of a plurality of winding patterns can be switched to a winding to be energized; and an inverter (20) connected to a DC power supply (40) and energizing the winding to be energized by turning on and off switches (22, 23) provided in each phase. The control device is provided with: a parameter acquiring unit for acquiring a parameter having a correlation with the amplitude of an induced voltage of the rotating electric machine; a control unit for controlling the inverter so as to satisfy a switching condition that the amplitude and phase of the equivalent waveform of an applied voltage applied from the inverter to the winding to be energized coincides with the amplitude and phase of an induced voltage generated in the winding to be energized; a winding switching unit which, when the switching condition is satisfied, switches the winding to be energized; and a storage unit (32) into which a map is stored in which the duty ratios of the switches and the parameter are made to correspond to each other. The control unit controls the inverter on the basis of the map and the parameter.
Inventors:
FUWA YASUHIRO (JP)
Application Number:
PCT/JP2019/030294
Publication Date:
March 05, 2020
Filing Date:
August 01, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02P25/18; H02P27/08
Foreign References:
| JP2013062888A | 2013-04-04 | |||
| JP2015091166A | 2015-05-11 | |||
| JP2013238152A | 2013-11-28 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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