{
  "$type": "site.standard.document",
  "description": "A transportation refrigeration system is provided and includes a trailer refrigeration unit (TRU), a battery to provide electricity for the TRU, an electrical system and a controller. The electrical system includes a direct current (DC) bus electrically interposed between the battery and the TRU…",
  "path": "/patents/1382017",
  "publishedAt": "2026-05-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/3211",
    "Carrier Corporation"
  ],
  "textContent": "A transportation refrigeration system is provided and includes a trailer refrigeration unit (TRU), a battery to provide electricity for the TRU, an electrical system and a controller. The electrical system includes a direct current (DC) bus electrically interposed between the battery and the TRU. The electrical system further includes an inverter and a boost converter disposed on the DC bus. The controller includes a memory unit storing first, second and third efficiency tables for the TRU, the inverter and the boost converter, respectively, and a processor. The processor sets an operational target for the TRU and achieves the operational target by controlling the inverter and the boost converter according to a voltage of the battery, the first, second and third efficiency tables and real-time operating conditions.",
  "title": "OPTIMAL BUS VOLTAGE AND SWITCHING FREQUENCY STRATEGY"
}