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Title:
ROAD SURFACE CONDITION DETECTION SYSTEM, ACTIVE SUSPENSION SYSTEM, ANTI-LOCK BRAKE SYSTEM, AND SENSOR UNIT FOR THE ROAD SURFACE CONDITION DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2006/095429
Kind Code:
A1
Abstract:
A road surface condition detection system capable of quickly and accurately detecting road surface conditions in vehicle traveling, an active suspension system and an anti-lock brake system that use the road surface condition detection system, and a sensor unit for the road surface condition detection system. A sensor unit (100) is provided on a rotating body of a rotation mechanism section of a wheel, and the sensor unit (100) has an acceleration sensor for detecting acceleration occurring in the direction of rotation of the wheel as the wheel rotates. A signal of the detected acceleration is received by a monitor device (200), the received signal is compared to a variation pattern of an acceleration signal for each road surface condition, which pattern is previously stored in a storage section (250), to specify the conditions of a road surface, and information on the specified conditions is outputted. Drive control of the active suspension system and the anti-lock brake system is made based on the information on the road surface conditions.

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Inventors:
HATTORI YUTAKA (JP)
HATANO YASUO (JP)
Application Number:
PCT/JP2005/004232
Publication Date:
September 14, 2006
Filing Date:
March 10, 2005
Export Citation:
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Assignee:
YOKOHAMA RUBBER CO LTD (JP)
HATTORI YUTAKA (JP)
HATANO YASUO (JP)
International Classes:
B60R16/02; B60C23/00; B60G17/00; B60G17/015; G01P15/12; G08C17/02; (IPC1-7): B60R16/02; B60C23/00; B60G17/00; B60G17/015; G01P15/12; G08C17/02
Foreign References:
JP2005029142A2005-02-03
JP2004237881A2004-08-26
JP2001163202A2001-06-19
JP2001247026A2001-09-11
JP2001163211A2001-06-19
Attorney, Agent or Firm:
Yoshida, Kiyotaka (15-10 Toranomon 1-chom, Minato-ku Tokyo 01, JP)
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