Title:
DEVICE AND METHOD FOR DETERMINING ABNORMALITY OF FRONT/REAR ACCELERATION SENSOR
Document Type and Number:
WIPO Patent Application WO/2012/140763
Kind Code:
A1
Abstract:
The present invention relates to a device and method for determining abnormality of a front/rear acceleration sensor used to detect the front/rear acceleration of a vehicle for vehicle driving control. According to the present invention, the front/rear acceleration of the vehicle detected by the front/rear acceleration sensor is calculated as an integrated value, and whether the front/rear acceleration sensor is abnormal is determined based on the integrated value and a vehicle speed obtained from the speeds of vehicle wheels. If the vehicle speed obtained from the speeds of the vehicle wheels is zero and a state in which an increase rate of the detected front/rear acceleration of the vehicle is equal to or lower than an increase rate reference value continues for a calculation start reference time period or longer, calculation of the integrated value is started.
Inventors:
SAITO TAKASHI (JP)
ITABASHI KAIJI (JP)
ITABASHI KAIJI (JP)
Application Number:
PCT/JP2011/059262
Publication Date:
October 18, 2012
Filing Date:
April 14, 2011
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
SAITO TAKASHI (JP)
ITABASHI KAIJI (JP)
SAITO TAKASHI (JP)
ITABASHI KAIJI (JP)
International Classes:
B60T8/88; B60W50/02; G01P7/00; G01P21/00
Domestic Patent References:
| WO2005064350A1 | 2005-07-14 |
Foreign References:
| JP2003063375A | 2003-03-05 | |||
| JPH11295337A | 1999-10-29 | |||
| JPH11190741A | 1999-07-13 |
Attorney, Agent or Firm:
PROSPEC PATENT FIRM (JP)
Patent business corporation Pros Peck patent firm (JP)
Patent business corporation Pros Peck patent firm (JP)
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Claims: