{
  "$type": "site.standard.document",
  "description": "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…",
  "path": "/patents/1414547",
  "publishedAt": "2024-01-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D29/02",
    "YAMAHA MOTOR CO LTD [JP]"
  ],
  "textContent": "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.",
  "title": "DRIVE TRAIN ABNORMALITY DETERMINATION DEVICE FOR STRADDLED VEHICLE, AND STRADDLED VEHICLE"
}