{
  "$type": "site.standard.document",
  "description": "A disclosed hybrid-type construction machine includes a generator part (12) configured to generate electric energy by the driving force of an engine (11); an inverter (18A) configured to control the generator part (12); an electric power accumulator (120) configured to accumulate the electric…",
  "path": "/patents/999947",
  "publishedAt": "2012-07-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L50/40",
    "SUMITOMO HEAVY INDUSTRIES [JP]"
  ],
  "textContent": "A disclosed hybrid-type construction machine includes a generator part (12) configured to generate electric energy by the driving force of an engine (11); an inverter (18A) configured to control the generator part (12); an electric power accumulator (120) configured to accumulate the electric energy generated by the generator part (12); a DC bus located between the generator part (12) and the electric power accumulator (120); and a converter (100) configured to control a voltage of the DC bus, wherein when the electric power accumulator (120) having approximately zero electric energy is charged the inverter (18A) of the generator part is not controlled, and a reference value of a voltage command for the DC bus to charge the electric power accumulator is set to be smaller than an induced voltage of the generator part (12).",
  "title": "Hybrid-type construction machine"
}