VEHICLE STEERING DEVICE

WIPO Patent Application WO/2014/104253

A1

A vehicle steering device (101) is provided with: a turning unit (3) which has a first motor (332) and a second motor (342) for turning that have an electric characteristic set in common with each other, and turns steered wheels (30a, 30b) according to the operation of a steering wheel (1); a first current sensor (332A) which detects a first current value flowing through the first motor (332); a second current sensor (342A) which detects a second current value flowing through the second motor (342); and an abnormality diagnosis unit (79a, 79b, 79c). The abnormality diagnosis unit (79a, 79b, 79c) diagnoses the turning unit (3) as being abnormal when the deviation between the first and second current values detected by the first and second current sensors (332A, 342A), respectively, exceeds a predetermined threshold. For example, when some kind of abnormality has occurred in the current detection unit (332A, 342A) for detecting the magnitude of a current flowing through the motor for turning (332, 342), the occurrence of the abnormality is rapidly diagnosed.

SHIMIZU YASUO (JP)
IKEGAYA MANABU (JP)
YONEDA ATSUHIKO (JP)
MIYOSHI TAKASHI (JP)
ONIWA YOSHIHIRO (JP)

PCT/JP2013/085002

July 03, 2014

December 26, 2013

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HONDA MOTOR CO LTD (JP)

B62D5/04; B62D6/00; F16D41/06; F16D41/08; B62D101/00; B62D111/00; B62D113/00; B62D119/00; B62D137/00

JP2008221916A	2008-09-25
JP2010149678A	2010-07-08
JP2005008073A	2005-01-13
JP2002225733A	2002-08-14
JP2005082057A	2005-03-31
JP2010195251A	2010-09-09
JP2010076692A	2010-04-08
JP2008273419A	2008-11-13

ISONO Michizo (JP)
Michizo Isono (JP)

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