{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "Electrohydraulic braking device for a motor vehicle comprises wheel brakes (1a-1d), a braking command device (7) operated by the driver, a hydraulic accumulator (3), a switchable valve arrangement hydraulically coupled between the hydraulic accumulator and the wheel brakes, a control device…",
  "path": "/patents/1093057",
  "publishedAt": "2003-09-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T13/686",
    "VOLKSWAGEN AG [DE]"
  ],
  "textContent": "Electrohydraulic braking device for a motor vehicle comprises wheel brakes (1a-1d), a braking command device (7) operated by the driver, a hydraulic accumulator (3), a switchable valve arrangement hydraulically coupled between the hydraulic accumulator and the wheel brakes, a control device supplying the wheel brakes with braking pressure depending on an electrically and/or electronically determined position of the braking command device through actuation of the valve arrangement, and a main brake cylinder (12) operated by the braking command device and hydraulically coupled to the wheel brakes via the valve arrangement. A hydraulic connection via the valve arrangement between the main brake cylinder and the wheel brakes in a de-activated state is opened to transfer brake pressure from the main cylinder to the wheel brakes on failure of the control device. In the de-activated state a connection to the hydraulic accumulator to increase braking force is opened by the brake pressure. Preferred Features: The switching valve (22) is a pressure-regulating valve, a differential pressure valve, or a check valve.",
  "title": "Electrohydraulic brake device for a vehicle"
}