Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2004-12-12
2008-10-28
Masih, Karen (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S434000, C318S803000, C318S813000
Reexamination Certificate
active
07443131
ABSTRACT:
A control device for electric power steering apparatus, in which when torque ripples at the time of the rotation of a motor is reduced by simple arithmetic, smooth and safe assist limitation is performed without deteriorating steering feeling, is provided. For this reason, in the control device for electric power steering apparatus adopting a vector control system for applying an assist force of a motor to a steering system, a phase delay according to an angular velocity is obtained, a corrected electric angle is calculated by adding the phase delay to an electric angle, and generation of a current command value in the vector control is compensated based on the corrected electric angle.
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Endo Shuji
Kobayashi Hideyuki
Ta CaoMinh
Masih Karen
NSK Ltd.
NSK Steering Systems Co., Ltd.
Sughrue & Mion, PLLC
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