Title:
MOTOR-DRIVEN POWER STEERING DEVICE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2005/081397
Kind Code:
A1
Abstract:
There is provided a motor-driven power steering device control device for suppressing motor vibration and noise caused by the torque ripple occurring when the motor is subjected to field-weakening control or based on the motor circulating current. For this, by actually measuring the relationship between the basic correction current and the rotor position capable of suppressing the torque ripple generated when the field-weakening control is executed or the torque ripple based on the motor circulating current, the basic correction current is adjusted by considering the field-weakening current intensity, the rotor angular velocity, or the electric angle of the circulating current. The adjusted correction current is added to the original current instruction value to control the motor output torque.
Inventors:
KOBAYASHI HIDEYUKI (JP)
Application Number:
PCT/JP2005/003228
Publication Date:
September 01, 2005
Filing Date:
February 21, 2005
Export Citation:
Assignee:
NSK LTD (JP)
NSK STEERING SYS CO LTD (JP)
KOBAYASHI HIDEYUKI (JP)
NSK STEERING SYS CO LTD (JP)
KOBAYASHI HIDEYUKI (JP)
International Classes:
B62D6/00; B62D5/04; H02P21/00; H02P21/05; H02P21/06; H02P21/22; H02P23/04; H02P25/026; H02P27/08; B62D103/00; B62D119/00; B62D137/00; (IPC1-7): H02P21/00
Foreign References:
| JP2001018822A | 2001-01-23 | |||
| JP2002223582A | 2002-08-09 |
Attorney, Agent or Firm:
Agata, Yuzo (Akasaka 2-Chome Minato-K, Tokyo 52, JP)
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