{
  "$type": "site.standard.document",
  "description": "An automatic transmission apparatus includes a transmission mechanism, an actuator arranged to rotate a shift drum, and a control device. The control device includes a determining unit arranged to detect a state of a straddle-type vehicle and to determine whether the straddle-type vehicle is in a…",
  "path": "/patents/978479",
  "publishedAt": "2014-02-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60W20/30",
    "YAMAHA MOTOR CO LTD [JP]"
  ],
  "textContent": "An automatic transmission apparatus includes a transmission mechanism, an actuator arranged to rotate a shift drum, and a control device. The control device includes a determining unit arranged to detect a state of a straddle-type vehicle and to determine whether the straddle-type vehicle is in a first state in which an engaging force between the transmission gears is estimated to be equal to or greater than a predetermined value or in a second state in which the engaging force is estimated to be less than the predetermined value; a first gear shifting control unit arranged and programmed to control the actuator so that, if in the first state, the rotational speed of the shift drum becomes a first rotational speed; and a second gear shifting control unit arranged and programmed to control the actuator so that, if in the second state, the rotational speed of the shift drum becomes a second rotational speed that is lower than the first rotational speed.",
  "title": "Automatic transmission apparatus and straddle-type vehicle equipped with the apparatus"
}