Invention Grant
- Patent Title: Rotating electric machine control device
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Application No.: US15195638Application Date: 2016-06-28
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Publication No.: US09935567B2Publication Date: 2018-04-03
- Inventor: Akira Takesaki , Nobuyori Nakajima
- Applicant: DENSO CORPORATION
- Applicant Address: JP Kariya, Aichi-pref.
- Assignee: DENSO CORPORATION
- Current Assignee: DENSO CORPORATION
- Current Assignee Address: JP Kariya, Aichi-pref.
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: JP2015-133703 20150702
- Main IPC: H02P21/00
- IPC: H02P21/00 ; H02P7/32 ; H02P6/10 ; H02P21/05 ; B60K6/365

Abstract:
A rotating electric machine control device includes: a q-axis PI controller calculating a pre-restriction q-axis voltage instruction value based on a q-axis voltage detection value and a q-axis current instruction value; a first q-axis restricter calculating a post-restriction q-axis voltage instruction value by restricting the pre-restriction q-axis voltage instruction value, for an excess of output exceeding a maximum outputtable voltage V_max; a correction value calculator calculating a q-axis correction value that has a reverse phase of a ripple current of a q-axis current; and a corrector correcting the post-restriction q-axis voltage instruction value with the q-axis correction value. In such manner, even when the pre-restriction q-axis voltage instruction value is saturated, a ripple current is reduced, thereby reducing a sound and/or a vibration caused by the ripple current.
Public/Granted literature
- US20170005600A1 ROTATING ELECTRIC MACHINE CONTROL DEVICE Public/Granted day:2017-01-05
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