Vehicle brake fluid control device has vacuum elimination line connected to secondary circuit formed from part of line between pressure reducing valve and reservoir, and part of circulation line between reservoir and pump

摘要

The vehicle brake fluid control device has a vacuum elimination line (A3) connected to a secondary circuit which is formed from a part of a pressure reducing line (B) between a pressure reducing valve (21,22) and the reservoir (20), and a part of a circulation line (C) between the reservoir and the pump (19). A first control valve (23) is provided in the vacuum elimination line and controls the flow of brake fluid through it. The vacuum elimination line is connected to a section in which the brake fluid is basically at atmospheric pressure or positive pressure.