{
  "$type": "site.standard.document",
  "description": "A vehicle powertrain has a first electrical machine with first power electronics, a second electrical machine with second power electronics, and a transmission connected between the electrical machines and an output. In symmetrical operation, the first and the second electrical machine are operated…",
  "path": "/patents/1407169",
  "publishedAt": "2026-06-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L15/2054",
    "ZF Friedrichshafen AG"
  ],
  "textContent": "A vehicle powertrain has a first electrical machine with first power electronics, a second electrical machine with second power electronics, and a transmission connected between the electrical machines and an output. In symmetrical operation, the first and the second electrical machine are operated with an equal torque and torque gradient. When executing a shift non-symmetrical operation, the first and the second electrical machines are operated with different torque and/or torque gradient. During a symmetrical operation if it is detected that a shift with a non-symmetrical operation is to be executed, the symmetrical operation is exited prior to executing the shift to provide a mode in which the electrical machine operated with higher torque and/or torque gradient, is operated with limited torque and/or torque gradient to reduce a temperature of the electrical machine and the associated power electronics operated with a higher torque and/or torque gradient.",
  "title": "Method and control device for operating a vehicle driveline"
}