HYDRAULIC CIRCUIT FOR CONTROLING SBW-TYPE ELECTRONIC PARKING ASSEMBLY

摘要

The present invention relates to an electronic parking system. Provided is a hydraulic circuit controlling an SBW-type parking structure, which is capable of preventing a parking gear and a parking pole from being coupled to each other when a hydraulic system malfunctions during the driving of a vehicle and which comprises: a decompression valve receiving line pressure through a line pressure flow path; a parking piston receiving constant hydraulic pressure, which is decompressed by the decompression valve, through a decompression flow path; an on/off solenoid receiving the constant hydraulic pressure through a first branch hydraulic path branching off from the decompression flow path; and a control valve receiving the constant hydraulic pressure through a second branch hydraulic path branching off from the decompression flow path.