Title:
電動パワーステアリング装置
Document Type and Number:
Japanese Patent JP6652204
Kind Code:
B2
Abstract:
[Problem] An object of the present invention is to provide an electric power steering apparatus of a vector control system that compensates a dead time of an inverter without tuning operation, improves a distortion of a current waveform and a responsibility of a current control, and suppresses a sound, a vibration and a ripple. [Means for solving the problem] The present invention is the electric power steering apparatus of the vector control system that calculates dq-axes steering-assist command values based on at least a steering torque, calculates dq-axes current command values from the dq-axes steering-assist command values, converts the dq-axes current command values into 3-phase duty command values, driving-controls a 3-phase brushless motor by an inverter of a PWM control, and applies an assist torque to a steering system of a vehicle, wherein dead time reference compensation values are calculated based on a motor rotational angle, wherein dead time compensation of the inverter is performed by adding dead time compensation values in which the dead time reference compensation values are processed by using a gain, a sign and the like, to dq-axes voltage command values or to 3-phase voltage command values.
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Inventors:
Hiroaki Takase
Ryo Minaki
Hideki Sawada
Takayoshi Sugawara
Ryo Minaki
Hideki Sawada
Takayoshi Sugawara
Application Number:
JP2019009200A
Publication Date:
February 19, 2020
Filing Date:
January 23, 2019
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
B62D6/00; H02P21/05; H02M7/48; H02P6/10
Domestic Patent References:
| JP2011188633A | ||||
| JP2008086083A | ||||
| JP2010183702A | ||||
| JP2008254633A | ||||
| JP2012231615A |
Attorney, Agent or Firm:
Yuzo Agata