The invention relates to an active hydraulic brake system of a tramcar. The system comprises a hydraulic unit, an energy accumulator, an active brake cylinder and a control system. Compared with the existing hydraulic brake system, in a load circuit of the system, one path of outlet of the energy accumulator is connected into the brake cylinder through an electromagnetic valve, a proportional pressure reducing valve and a second filter. According to the invention, the connection way between the energy accumulator and the brake cylinder in the existing hydraulic brake system is changed. When a braking instruction is unavailable for the tramcar, the electromagnetic valve is electrified, an oil path between the energy accumulator and an oil tank is cut off, so that energy loss caused by leakage of pressure oil in the energy accumulator and error output of brake power by the active brake cylinder are avoided, and the stability of the braking system is improved.
Active hydraulic brake system of tramcar
2015-10-07
Patent
Electronic Resource
English
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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