Title:
電動パワーステアリング装置
Document Type and Number:
Japanese Patent JP4932558
Kind Code:
B2
Abstract:
A motor-driven power steering apparatus (1) is provided with a sub control system (40) including a map memory means (41) storing a first window time setting map M1 and a second window time setting map M2 in which a window time is set shorter, a window time setting map selecting means (44) selecting the first window time setting map M1 at a time when a torque change amount dT and a current change amount dIm are both smaller than respective predetermined change amounts, and selecting the second window time setting map M2 in the other cases, a window time deciding means (45) collating a point coordinate of a combination of a steering torque and a motor current with the selected window time setting map so as to decide a window time, and a motor drive stop determining means (46) determining the motor drive stop in the case that the point coordinate exists in a region corresponding to the decided window time for the window time, and when a motor drive stop determining means (46) determines the motor drive stop, the drive of the motor (24) controlled so as to be driven by a main control system (30) is stopped.
Inventors:
Akihiro Tamaki
Application Number:
JP2007078202A
Publication Date:
May 16, 2012
Filing Date:
March 26, 2007
Export Citation:
Assignee:
Showa Corporation
International Classes:
B62D6/00; B62D5/04; B62D101/00; B62D119/00; B62D137/00
Domestic Patent References:
| JP3418098B2 | ||||
| JP5112251A | ||||
| JP200651937A | ||||
| JP200651912A | ||||
| JP2003335251A |
Attorney, Agent or Firm:
Nozomi Gangwon
Nakamura Kun
Nakamura Kun