Title:
ストラドルドビークル用駆動系異常判定装置、及びストラドルドビークル
Document Type and Number:
Japanese Patent JP7139512
Kind Code:
B2
Abstract:
Provided is a drive train abnormality determination device and a straddled vehicle, capable of determining an abnormality of a drive train with a simple configuration. The drive train abnormality determination device for a straddled vehicle includes: an angle signal output unit that periodically outputs an angle signal in accordance with rotation of a rotator included in the drive train of the straddled vehicle; a rotator rotation speed fluctuation physical quantity acquisition unit that acquires a physical quantity related to a fluctuation in the rotation speed of the rotator, based on a signal from the angle signal output unit; a rough road determination unit that determines whether or not a distribution state or pattern based on the rotator rotation speed fluctuation physical quantity acquired by the rotator rotation speed fluctuation physical quantity acquisition unit satisfies a predetermined rough road condition; a continuity determination unit that determines whether or not a state where a result of the determination by the rough road determination unit indicating that the rough road condition is satisfied is continuing; and a drive train abnormality determination unit that determines that the drive train has an abnormality if the continuity determination unit determines that the result of the determination by the rough road determination unit is continuing.
Inventors:
Kazuki Iwamoto
Hisashi Kinoshita
Nobuyuki Kawashima
Hisashi Kinoshita
Nobuyuki Kawashima
Application Number:
JP2021504853A
Publication Date:
September 20, 2022
Filing Date:
February 17, 2020
Export Citation:
Assignee:
YAMAHA HATSUDOKI KABUSHIKI KAISHA
International Classes:
F02D45/00; F02B77/08
Domestic Patent References:
| JP5312085A | ||||
| JP2008037255A | ||||
| JP2014084840A |
Foreign References:
| WO2017208757A1 |
Attorney, Agent or Firm:
Patent Service Corporation Tas Meister