{
  "$type": "site.standard.document",
  "description": "The present invention achieves a technique that makes it possible to estimate a ground contact load of a vehicle with sufficiently high accuracy. A ground contact load estimation device () acquires a wheel angular speed, a steady load, and an inertia load of a vehicle, uses the steady load and the…",
  "path": "/patents/1312031",
  "publishedAt": "2022-03-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60W40/13",
    "HITACHI ASTEMO, LTD."
  ],
  "textContent": "The present invention achieves a technique that makes it possible to estimate a ground contact load of a vehicle with sufficiently high accuracy. A ground contact load estimation device () acquires a wheel angular speed, a steady load, and an inertia load of a vehicle, uses the steady load and the inertia load to cause a first gain calculation section () to calculate a first gain, multiplies a variation in wheel angular speed by a second gain so as to cause a tire effective radius variation calculation section () to calculate a tire effective radius variation, and multiplies the tire effective radius variation by the first gain so as to estimate a road surface load.",
  "title": "GROUND LOAD ESTIMATION DEVICE, CONTROL DEVICE, AND GROUND LOAD ESTIMATION METHOD"
}