{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "Provided is an electric brake device that can prevent a pad wear from progressing beyond its limit, and can estimate the wear of the friction pad without an increase in cost and space. The electric brake device includes: an electric motor (2); a brake rotor (5); a friction pad (6); a linear motion…",
  "path": "/patents/931482",
  "publishedAt": "2017-02-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/741",
    "NTN TOYO BEARING CO LTD [JP]"
  ],
  "textContent": "Provided is an electric brake device that can prevent a pad wear from progressing beyond its limit, and can estimate the wear of the friction pad without an increase in cost and space. The electric brake device includes: an electric motor (2); a brake rotor (5); a friction pad (6); a linear motion mechanism (4); a braking force command section (26a); a braking force estimation section (30); a motor rotation angle detector (28); and a controller (7). The controller (7) is provided with a pad wear amount estimation section (37) configured to estimate a wear amount of the friction pad (6) at a present time by comparing a correlation between the motor rotation angle detected by the motor rotation angle detector (28) and the braking force obtained by the braking force estimation section (30) with a defined correlation between a motor rotation angle and a braking force when the friction pad (6) is unworn.",
  "title": "ELECTRIC BRAKE DEVICE"
}