{
  "$type": "site.standard.document",
  "description": "To provide a drive control system for a working vehicle, which can prevent engine stall with certainty even when a large load suddenly acts on a vehicle-mounted engine and which is also excellent in environment friendly performance. When a vehicle speed of a wheel loader (1) is determined to be not…",
  "path": "/patents/979411",
  "publishedAt": "2014-01-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60W30/1884",
    "HITACHI CONSTRUCTION MACHINERY [JP]"
  ],
  "textContent": "To provide a drive control system for a working vehicle, which can prevent engine stall with certainty even when a large load suddenly acts on a vehicle-mounted engine and which is also excellent in environment friendly performance. When a vehicle speed of a wheel loader (1) is determined to be not higher than a reference value (Yes) in step S4 and a forward/reverse command means (40) is determined to have been switchingly operated (Yes) in step S5, the routine advances to step S6 where an increment N of engine speed according to an engine load factor is determined. In step S7, the increment N of engine speed is then added to a target engine speed Na corresponding to a depression stroke of an accelerator pedal (38), the thus-determined Na=Na+N is set as a new target engine speed Na, and a target engine speed command i1 is sent to an engine controller (37).",
  "title": "DRIVE CONTROL DEVICE FOR WORK VEHICLE"
}