城轨车辆电气控制系统（双语）-停放制动监视.pptx

Parking brake monitoring

停放制动监视

停放制动监视

Parking brake monitoring

As the brake cylinder pressure will leak and decline to zero gradually due to pipeline

when the train is powered off and parks, in the case of (air compressor powers off,

and stops working) no pressure air supplement, the train will lose braking force.

Vehicle parking brake is different from the braking effect of the vehicle during

running. Vehicle parking brake is realized by spring force. Under normal

的情况下，逐步下降到零，使车辆失去制动力。车辆停放制动不同于车辆运行中的制动作用，它是

采用弹簧力来产生制动作用的。在正常情况下，弹簧力的大小不随时间而变化，由此获得的制动力

能要能满足列车较长时间断电停放的要求。弹簧停放制动缸充气时，停放制动缓解；弹簧停放制动

缸排气时，停放制动施加；并且还需附加有手动缓解功能。

停放制动监视

Parking brake monitoring

Parking brake and air brake are of two different natures. Parking brake is a passive

brake, of which braking force is generated by the spring. It adopts the braking

method “release braking while inflate, launch braking while exhaust”. The parking

brake is only launched when the train is stationary to prevent the train from slipping.

Parking brake can ensure that the train in AW3 load conditions could steadily top on

用充气时停放制动缓解、排气时停放制动施加的制动方式。停放制动仅在列车静止时使用，防止列

车溜车。停放制动可保证列车在AW3载荷的工况下稳定的停在坡度不超过35‰的坡道上。停放制

动由车辆控制电路控制并由控制电路和控制系统同时监控。列车停车时，如果停放制动未缓解，列

车将禁止牵引。如果在运行过程中控制系统监测到停放制动施加，列车将封锁牵引。