The invention discloses a brake release control circuit and control method of a metro vehicle brake system, the brake release control circuit comprises an EBCU power control line and a relay, the relay comprises a coil K1 and a conversion type contact group; the coil K1 is connected between a positive electrode and a negative electrode of an EBCU power supply through an EBCU power supply control line, a movable contact of the conversion type contact group is connected with a brake release signal output interface, a first static contact of the conversion type contact group is connected with a signal output interface of the EBCU, and a second static contact of the conversion type contact group is connected with an emergency loop power supply signal output interface; and when the coil K1 is not electrified, the movable contact of the conversion type contact group is normally closed at the second static contact. According to the invention, the EBCU can output correct brake release signals under the conditions of normal operation and abnormal fault power loss, and rescue accidents caused by abnormal traction blocking are avoided.
本发明公开了一种地铁车辆制动系统制动缓解控制电路和控制方法,包括EBCU电源控制线和继电器,所述继电器包括线圈K1和转换型触点组;所述线圈K1通过EBCU电源控制线连接于EBCU电源的正负极之间,转换型触点组的动触点与制动缓解信号输出接口连接,转换型触点组的第一静触点与EBCU的信号输出接口连接,转换型触点组的第二静触点与紧急环路电源信号输出接口连接;线圈K1未通电时,转换型触点组的动触点常闭合于第二静触点。本发明能使EBCU在正常运行和异常故障失电情况下均能输出正确的制动缓解信号,避免异常牵引封锁引起救援事故的发生。
Brake release control circuit and control method of metro vehicle brake system
一种地铁车辆制动系统制动缓解控制电路和控制方法
2022-04-29
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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