{
  "$type": "site.standard.document",
  "description": "A speed change control apparatus (30) for a work vehicle (1) includes a hydraulic continuously variable speed transmission (8) that performs speed change on power input from an engine (7) by changing a trunnion shaft angle based on a depressing amount of a speed change pedal (22) and outputs the…",
  "path": "/patents/937040",
  "publishedAt": "2016-09-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60K17/28",
    "ISEKI AGRICULT MACH [JP]"
  ],
  "textContent": "A speed change control apparatus (30) for a work vehicle (1) includes a hydraulic continuously variable speed transmission (8) that performs speed change on power input from an engine (7) by changing a trunnion shaft angle based on a depressing amount of a speed change pedal (22) and outputs the power, a pedal position detector (321) that detects a pedal position responsive to the depressing amount of the speed change pedal (22), and a control unit (32) that controls a number of revolutions of the engine (7) and the trunnion shaft angle of the hydraulic continuously variable speed transmission (8) based on a detection value of the pedal position detector (321). The control unit (32) performs control so that the trunnion shaft angle is maximized at a second pedal position (P2) set to a position shallower than a first pedal position (P1) at which the number of revolutions of the engine (7) is maximized by a depressing operation of the speed change pedal (22).",
  "title": "SPEED CHANGE CONTROL APPARATUS FOR WORK VEHICLE"
}