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Title:
ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/063367
Kind Code:
A1
Abstract:
 In order to enable a steering wheel to be easily operated both during normal times and when an abnormality has occurred, this electric power steering device is provided with an electric motor 2 having two wound coils, and a control unit 1 having two control systems for respectively supplying control signals to the wound coils of the electric motor 2. When an abnormality has occurred in one wound coil of the electric motor 2 or in one system in the control unit 1, the supply current to the wound coil where the abnormality has occurred is cut to zero, and the electric motor 2 is driven by supplying the prescribed supply current needed during regular times to the other wound coil. During normal drive times when no abnormalities have occurred, the electric motor 2 is driven such that the supply current is shared between the two wound coils.

Inventors:
ASAO YOSHIHITO (JP)
MORI AKIHIKO (JP)
Application Number:
PCT/JP2014/078054
Publication Date:
April 28, 2016
Filing Date:
October 22, 2014
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B62D5/04; H02P29/00; B62D6/00
Foreign References:
JP3839358B22006-11-01
JP2014043122A2014-03-13
JPH09107602A1997-04-22
JP2011234517A2011-11-17
Other References:
See also references of EP 3210850A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
Masuo Oiwa (JP)
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