Electrodes - a pneumatic spring memory a regularity of the direction of a motor vehicle with erratic pressure increase in the brake release

摘要

The present invention relates to an electropneumatic spring memory means a direction (1) of a motor vehicle, which includes means for producing electric brake actuation signals, which at least the states ‘ brake application ’ and ‘ ’ brake release, represent the brake actuation signals to a received electronic control device (8), a of the control electronics (8) as a function of the activation signals controlled electropneumatic valve means (10) as well as at least one pneumatically actuated spring brake cylinder, wherein the electropneumatic valve means (10) by connecting the at least one spring brake cylinder with a compressed-air supply (12) is vented or through a connection to a pressure sink (3) is evacuated of air, and wherein a by the electronic control device (8) — canceling any a maximum of ventilation state of the electropneumatic valve device (10), there is, in which the electropneumatic valve means (10) a maximum flow cross section between the compressed-air supply (12) and the at least one spring brake cylinder releases.According to the invention, it is provided that the electronic control device (8) is formed that, in the case of a during the travel of the vehicle were carried out a change of state of of ‘ brake application ’ in ‘ ’ of release of the electromagnetic valve device (10) of the electronic control device (8) as long as in the maximum ventilation state is controlled until the pressure in the at least one spring brake cylinder starting from an output pressure value below a first gradient abruptly to a higher first, but is still below a the spring brake cylinder lying completely dissolving brake pressure release pressure value is increased and, after reaching the first pressure value is controlled in a state in which the pressure in the at least one spring brake cylinder starting from the first pressure value is below a second, with respect to the first gradient small gradient of the invention, to assume a part of the release position or fully release position with respect to the first pressure value to a higher second pressure value is increased.