Title:
加速度センサの脱落判定方法及び加速度センサの脱落判定装置
Document Type and Number:
Japanese Patent JP6567471
Kind Code:
B2
Abstract:
A method and an apparatus configured to acquire, as acceleration information, a peak level a k which is a magnitude of a peak on a positive side or a negative side of an acceleration signal in a tire circumferential direction or a tire width direction detected by an acceleration sensor, or a peak interval b k which is a time interval between peaks, or acquire the peak level a k or the peak interval b k of a differential acceleration signal in a tire radial direction obtained by differentiating the acceleration signal in the tire radial direction; calculate ratios P k , Q k of a difference between the acquired acceleration information a k , b k and average values A k-1 of the acceleration information to the average values; and determine that the acceleration sensor is detached from the inside of the tire when the calculated ratio P k , Q k exceeds a preset threshold value K p , K q by multiple times successively.
Inventors:
Go Masago
Kazuo Hayashi
Kazuo Hayashi
Application Number:
JP2016131055A
Publication Date:
August 28, 2019
Filing Date:
June 30, 2016
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
G01P21/00
Domestic Patent References:
| JP2004299536A | ||||
| JP2005182570A |
Foreign References:
| WO2001068416A1 | ||||
| US20140007683 |
Attorney, Agent or Firm:
Junichi Miyazono
Miyazono Yasuo
Miyazono Yasuo