Title:
ROTARY ELECTRIC MACHINE CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/168869
Kind Code:
A1
Abstract:
A control unit (1): determines that a contactor (9) is in open state on the basis of a voltage (Vdc) across a smoothing capacitor (4) and an electric current (Ib) flowing through a DC power source (6); when a rotational speed is greater than or equal to a speed threshold value (ωth), controls both inverters (10) through shutdown control and puts both contactors (9) into open state; after the rotational speed falls below the speed threshold value (ωth), controls an inverter (10) on the failure side through active short circuit control and drives an inverter (10) on the normal side by a discharge torque (TQ1) of the smoothing capacitor (4); and, after an abnormal voltage state is resolved, controls a normal contactor (9) into closed state and drives a rotary electric machine (80) by one inverter (10).
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Inventors:
SAHA SUBRATA (JP)
Application Number:
PCT/JP2022/004060
Publication Date:
August 11, 2022
Filing Date:
February 02, 2022
Export Citation:
Assignee:
AISIN CORP (JP)
International Classes:
H02P25/22; H02M7/48; H02M7/493
Foreign References:
| JP2016123223A | 2016-07-07 | |||
| JP2016181947A | 2016-10-13 | |||
| JP2014192950A | 2014-10-06 |
Other References:
See also references of EP 4220938A4
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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