{
  "$type": "site.standard.document",
  "description": "A controlled brake apparatus (10) and method of operating a brake apparatus utilize a pre-charge circuit (88) connected directly between the fluid reservoir (16) of a master cylinder (12) of the apparatus (10) and the inlet (42) of a controlled braking pump (40), to thereby direct pre-charge flow…",
  "path": "/patents/1090751",
  "publishedAt": "2004-01-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T8/267",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "A controlled brake apparatus (10) and method of operating a brake apparatus utilize a pre-charge circuit (88) connected directly between the fluid reservoir (16) of a master cylinder (12) of the apparatus (10) and the inlet (42) of a controlled braking pump (40), to thereby direct pre-charge flow and pressure to the controlled braking pump inlet (42) in a parallel circuit relationship to a primary hydraulic circuit (22), rather than in a series flow arrangement through the primary hydraulic circuit (22) as was the case in prior brake systems. By feeding the pre-charge pressure and flow to the inlet (42) of the controlled braking pump (40) in this parallel circuit manner, components of the pre-charge circuit (88), such as a prime valve (78) and its associated check valve (84) are not exposed to braking pressure and can be made significantly smaller, lighter and at lower cost. The brake apparatus may also include a pre-charge pump (58) driven by the same motor (54) used for driving the controlled braking pump (40).",
  "title": "Brake system for a vehicle having an integral precharge pump"
}