{
  "$type": "site.standard.document",
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  "description": "A motor/generator (20) is provided with plural groups of coils (6), and inverters (30) supplying a polyphase AC current converted from a DC current to each group of coils (6) in response to pulse width modulation signals output by a microprocessor (25, 35). The microprocessor (25, 35) is programmed…",
  "path": "/patents/1112711",
  "publishedAt": "2001-05-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L3/0023",
    "NISSAN MOTOR [JP]"
  ],
  "textContent": "A motor/generator (20) is provided with plural groups of coils (6), and inverters (30) supplying a polyphase AC current converted from a DC current to each group of coils (6) in response to pulse width modulation signals output by a microprocessor (25, 35). The microprocessor (25, 35) is programmed to prevent increases in high frequency components in the polyphase AC current by controlling a specific inverter (30) to stop supplying the polyphase AC current (S20), when a load on the motor /generator is smaller than a reference load (S12). As a result, energy conversion efficiency of the motor/generator at low loads is improved.",
  "title": "Controller and control method for motor/generator"
}