Title:
ABNORMALITY DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/038626
Kind Code:
A1
Abstract:
Provided is an abnormality detection device with improved failure detection accuracy of a brake system. A brake ECU (17) (abnormality detection device) is equipped with: an operation amount acquisition unit (17a) for acquiring a measurement value of a stroke; a hydraulic pressure acquisition unit (17b) for acquiring a measurement value of a reaction hydraulic pressure correlating to the stroke; an operation direction determination unit (17c) for determining an operation direction from outputs of a stroke sensor (11c) and a pressure sensor (25b); a failure detection range switching unit (17d) for switching, in accordance with the operation direction, a failure detection range for detection of a failure of a hydraulic braking force generation device (A); and a failure determination unit (17e) for determining a failure of the hydraulic braking force generation device (A) from the failure detection range switched by the failure detection range switching unit (17d), the measurement value of the stroke, and the measurement value of the reaction hydraulic pressure.
Inventors:
OKANO TAKAHIRO (JP)
KAMIYA YUSUKE (JP)
KOMAZAWA MASAAKI (JP)
OKAWA TAKESHI (JP)
KAMIYA YUSUKE (JP)
KOMAZAWA MASAAKI (JP)
OKAWA TAKESHI (JP)
Application Number:
PCT/JP2016/074825
Publication Date:
March 09, 2017
Filing Date:
August 25, 2016
Export Citation:
Assignee:
ADVICS CO LTD (JP)
TOYOTA MOTOR CO LTD (JP)
TOYOTA MOTOR CO LTD (JP)
International Classes:
B60T17/22; B60T11/18
Foreign References:
| JP2007283836A | 2007-11-01 | |||
| JP2007216773A | 2007-08-30 |
Attorney, Agent or Firm:
KOBAYASHI Osamu et al. (JP)
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