Title:
A correcting method of resolver offset
Document Type and Number:
Japanese Patent JP6122604
Kind Code:
B2
Abstract:
Disclosed is a technique of correcting a resolver offset by measuring and correcting an offset of a resolver assembled to a motor of an eco-friendly vehicle in an accurate and simple way. The offset measurement process includes, after completing the assembly of a resolver a resolver to a motor, rotating the motor by using a rotation device able to transfer a rotation force to the motor, setting a voltage instruction and current-controlling the motor according to the voltage instruction, and obtaining a d-axis current and a q-axis current, which are feedback currents, during the current-control of the motor. Then when the system is in a steady state, a resolver offset ({tilde over (θ)}) is calculated from the d-axis current and the q-axis current by using {tilde over (θ)}=tan−1(d-axis current/q-axis current).
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Inventors:
Direction
Gold and tin
Gold and tin
Application Number:
JP2012228195A
Publication Date:
April 26, 2017
Filing Date:
October 15, 2012
Export Citation:
Assignee:
HYUNDAI MOTOR COMPANY
International Classes:
H02P21/00; H02P21/22; B60L50/15; B60L50/16; H02P6/06; H02P6/08; H02P6/16; H02P6/17; H02P6/28; H02P27/04; H02P27/08
Domestic Patent References:
| JP2001008486A | ||||
| JP2010148324A | ||||
| JP2010148271A |
Attorney, Agent or Firm:
Kyosei International Patent Office
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