Method and control device for reducing at least one brake pressure in at least one wheel brake cylinder of a vehicle brake system

摘要

The invention relates to a method and a control device (10) for reducing at least one brake pressure in at least one wheel brake cylinder (18) of a vehicle brake system by opening at least one wheel outlet valve (14) associated with the at least one wheel brake cylinder (18) in such a way that brake fluid flows via the at least one open brake Radauslassventil (14) from the at least one wheel brake cylinder (18) flows, and by opening at least one high-pressure switching valve (16) via which the at least one Radauslassventil (14) directly or indirectly connected to a driver-actuated and / or motorized brake pressure build-up device (22a, 22b) is, simultaneously or temporally overlapping with the opening of the at least one Radauslassventils (14) such that the at least one open Radauslassventil (14) from the at least one wheel brake cylinder (18) flowing brake fluid via the at least one opened high-pressure switching valve (16) flows into the driver-actuatable and / or motorized brake pressure build-up device (22a, 22b) with a pressure present therein below the respective brake pressure in the at least one wheel brake cylinder (18).