{
  "$type": "site.standard.document",
  "description": "To provide an electrically powered brake system capable of performing a control of the braking force appropriate to a particular wheel rotational speed with high response and capable of being simplified in structure with no need to employ any hydraulic equipment and the related pipe lines, the…",
  "path": "/patents/1084390",
  "publishedAt": "2004-09-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/741",
    "NTN TOYO BEARING CO LTD [JP]"
  ],
  "textContent": "To provide an electrically powered brake system capable of performing a control of the braking force appropriate to a particular wheel rotational speed with high response and capable of being simplified in structure with no need to employ any hydraulic equipment and the related pipe lines, the electrically powered brake system includes an actuating unit (18) including a brake wheel (16) mounted on a vehicle wheel (1) and brake pieces (17) frictionally engageable with the brake wheel (16). A drive unit (19) is operable to translate a rotary output of an electric drive motor (20) into a rectilinear reciprocating motion by means of a ball screw mechanism (23), which rectilinear reciprocating motion is transmitted to the brake pieces (17) as a braking force. An operating unit (32) is operable to control the electric drive motor (20) according to manipulation of an operating member (31) such as, for example, a brake pedal. An anti-skid control device (35) is provided for regulating the braking force, exerted by the electric drive motor (20), in dependence on the number of revolutions of the vehicle wheel (1) during a braking effected by manipulation of the operating member (31). For a rotation detector (36) for detecting the number of revolutions of the vehicle wheel (1), the rotation detector (36) including a magnetic encoder (37) and a sensor (38) is employed, said magnetic encoder (37) being mounted on a rotating side member (5) of a wheel support bearing assembly (2) for supporting the vehicle wheel (1).",
  "title": "Electrically powered brake system"
}