ABS HYDRAULIC BRAKE SYSTEM

摘要

ABS hydraulic brake systems which operate on the recirculation principle during an ABS operation, form a closed system. This means that no pressurised medium can get into the brake circuits from the reservoir during an ABS operation. In order to ensure reliable braking even if there is leakage into the brake circuits, the invention proposes that a reserve reservoir (11) should be provided and connected to the vacuum side of the recirculating pump (8) only if a travel sensor (20) signals that the main cylinder (1) is nearly exhausted. Various embodiments pertain to different ways of filling the reserve reservoir (11).