{
  "$type": "site.standard.document",
  "description": "The invention relates to a parking brake device for a vehicle, preferably for a commercial vehicle, comprising at least one spring accumulator brake cylinder (3); an electrically controllable first valve device (4) which is designed to initiate venting and/or aeration of the at least one spring…",
  "path": "/patents/955954",
  "publishedAt": "2015-11-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/26",
    "MAN TRUCK & BUS AG [DE]"
  ],
  "textContent": "The invention relates to a parking brake device for a vehicle, preferably for a commercial vehicle, comprising at least one spring accumulator brake cylinder (3); an electrically controllable first valve device (4) which is designed to initiate venting and/or aeration of the at least one spring accumulator brake cylinder (3) in dependence on an electrical control signal. The parking brake device further comprises a switchable second valve device (5), having a pneumatic control input (7) and an electrical control input (8), which is designed to initiate venting of the at least one spring accumulator brake cylinder (3) when a pneumatic pressure at the pneumatic control input (7) is present that is less than a predetermined threshold value, and when no electrical current is available at the electrical control input (8).",
  "title": "Electric parking brake for a vehicle"
}