Title:
SENSOR-EQUIPPED AXLE UNIT INTEGRAL WITH IN-WHEEL MOTOR
Document Type and Number:
WIPO Patent Application WO/2008/035455
Kind Code:
A1
Abstract:
A sensor-equipped axle unit integral with an in-wheel motor, with which control
of vehicle body attitude stability of an automobile driven by a motor can be accurately
performed. This is achieved by highly sensitively measuring forces directed
in the three axis directions perpendicular to each other and acting from a contact
point between a drive wheel and a road surface, with the force measurement based
on conditions of a structural element relating to a stop of drive of the automobile.
A hub bearing (A), an electric motor (B), a reduction gear (C), and a brake (D)
are coaxially arranged on the center axis (O) of the drive wheel (70). The axle
unit has sensors (80, 81, 82) for measuring forces (Fx, Fy, Fz) directed in the
three axis directions perpendicular to each other and acting from a contact point
between the drive wheel and the road surface, where the force measurement is based
on conditions of at least one structural element out of hub bearing (A), an electric
motor (B), a reduction gear (C), and a brake (D). The result of the measurement
is used for control of a suspension, an ABS, etc.
Inventors:
AKAMATSU YOSHINOBU (JP)
Application Number:
PCT/JP2007/000930
Publication Date:
March 27, 2008
Filing Date:
August 29, 2007
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
AKAMATSU YOSHINOBU (JP)
AKAMATSU YOSHINOBU (JP)
International Classes:
B60K7/00; B60B35/18; B60G17/019; B60L15/20; F16D65/18; B60G17/015
Foreign References:
| JP2005069897A | 2005-03-17 | |||
| JP2005007914A | 2005-01-13 | |||
| JPH05332401A | 1993-12-14 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (10-2 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, JP)
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