{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "Example embodiments presented herein are directed towards a method, a vehicle and a unit for improving positioning accuracy of an autonomous vehicle driving on a road, the unit comprising: a first computation unit configured to compute a first position of the vehicle on the road at a time T1, where…",
  "path": "/patents/932960",
  "publishedAt": "2016-12-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/1652",
    "VOLVO CAR CORP [SE]"
  ],
  "textContent": "Example embodiments presented herein are directed towards a method, a vehicle and a unit for improving positioning accuracy of an autonomous vehicle driving on a road, the unit comprising: a first computation unit configured to compute a first position of the vehicle on the road at a time T1, where the computation is performed using data from at least an inertial measurement unit (IMU); a second computation unit configured to compute a second position of the vehicle on the road at the time T1, where the computation is performed using data from at least one external sensor and a map; a comparison unit configured to compute a position difference between the computed first position and the computed second position; a correction unit configured to correct an error parameter of at least the IMU, where the error parameter is used for correcting a third position of the vehicle computed by the first computation unit at a time T2 with the computed position difference at time T1, if the second computation unit is unable to compute a fourth position of the vehicle at the time T2.",
  "title": "A UNIT AND METHOD FOR IMPROVING POSITIONING ACCURACY"
}