Title:
STEERING CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/181948
Kind Code:
A1
Abstract:
Provided is a steering control device that can determine a friction transition state accurately without employing road surface counterforce torque, and adjust the hysteresis width of steering torque freely and stably. This steering control device comprises: an assist command value correction means (14) that, on the basis of a result of a friction transition state determination means (13), corrects a basic assist command value so as to increase the hysteresis width of steering torque at the time of turnabout steering; and a current drive means (10) that drives a motor (5) in accordance with an assist correction value such that the current of the motor matches a current value based on the basic assist command value. The friction transition state determination means (13) determines a friction transition state by integrating a derivative value of a steering shaft counterforce torque with an integrator (17) that has a function of limiting the derivative value at predetermined upper and lower limit values.
Inventors:
TODA TAIZO (JP)
ENDO MASAYA (JP)
KIMPARA YOSHIHIKO (JP)
OGAWA KENJI (JP)
ENDO MASAYA (JP)
KIMPARA YOSHIHIKO (JP)
OGAWA KENJI (JP)
Application Number:
PCT/JP2014/064409
Publication Date:
December 03, 2015
Filing Date:
May 30, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B62D6/00; B62D101/00; B62D119/00
Foreign References:
| JP2010274822A | 2010-12-09 | |||
| JP2013056632A | 2013-03-28 | |||
| JP2013249043A | 2013-12-12 |
Other References:
See also references of EP 3150463A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
Masuo Oiwa (JP)
Masuo Oiwa (JP)
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