{
  "$type": "site.standard.document",
  "description": "The hybrid constructions machine has an engine rotation speed sensor A to detect a rotation speed NE of an engine an engine state determination unit B to determine the state of output torque TE of the engine a load torque estimation unit C to calculate load torque TP of a hydraulic pump and an…",
  "path": "/patents/1152375",
  "publishedAt": "2015-12-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "E02F9/2075",
    "Hitachi Construction Machinery Co., Ltd."
  ],
  "textContent": "The hybrid constructions machine has an engine rotation speed sensor A to detect a rotation speed NE of an engine an engine state determination unit B to determine the state of output torque TE of the engine a load torque estimation unit C to calculate load torque TP of a hydraulic pump and an engine assistance limiting unit E to, when the rotation speed NE detected with the engine rotation speed sensor A is equal to or greater than a rotation speed N0, and the engine state determination unit B determines that the output torque TE of the engine has not become minimum torque Tmin, or the load torque TP calculated with the load torque estimation unit C is lower than torque T limit motive-power assistance with the motor generator to the engine",
  "title": "HYBRID CONSTRUCTION MACHINE"
}