Beschreibung:
Abstract Based on the structural principle of the existing two-position anti-skid valve for urban rail vehicles, the valve has been modified to increase the pressure maintaining position based on the original only brake position and release position, so as to upgrade to the three-position anti-skid valve. As the pressure-maintaining position is added, the maximum braking force shall be kept as far as possible under the premise of anti-skid control of the train, so as to shorten the braking distance and ensure driving safety.