Invention Application
- Patent Title: MOTOR CONTROL UNIT AND ELECTRIC POWER STEERING APPARATUS EQUIPPED WITH THE SAME
-
Application No.: US16613831Application Date: 2018-06-12
-
Publication No.: US20200180682A1Publication Date: 2020-06-11
- Inventor: Hiroaki TAKASE , Ryo MINAKI , Hideki SAWADA , Takayoshi SUGAWARA
- Applicant: NSK Ltd.
- Applicant Address: JP Tokyo
- Assignee: NSK Ltd.
- Current Assignee: NSK Ltd.
- Current Assignee Address: JP Tokyo
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2623e674 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2db59277
- International Application: PCT/JP2018/022338 WO 20180612
- Main IPC: B62D5/04
- IPC: B62D5/04 ; H02P21/16
Abstract:
A vector-control type motor control unit that calculates dq-axes control assist command values, calculates dq-axes current command values from the dq-axes control assist command values, converts the dq-axes current command values into 3-phase duty command values, and drives and controls a 3-phase brushless motor by an inverter of a PWM control, wherein a dead time compensation of the inverter is performed by calculating 3-phase dead time reference compensation values based on a motor rotational angle which is phase-corrected by using the dq-axes current command values, calculating dead time compensation values by processing the 3-phase dead time reference compensation values by a gain and a sign, and adding the dead time compensation values to dq-axes voltage command values or 3-phase voltage command values.
Information query
IPC分类:
