Rail car braking system and its emergency redundant path detection method

Abstract

The invention discloses a railway locomotive braking system which comprises a control module, a main air pipe, a train pipe, an action pipe, a comparison valve, a brake cylinder and a brake cylinder pipe communicating between the comparison valve and the brake cylinder, wherein a distribution valve passage and an emergency redundant passage are connected in parallel between the main air pipe and the comparison valve; the distribution valve passage is sequentially provided with a plug valve, a distribution valve, a first switching valve and an air-electric linkage valve in the air flow direction; the emergency redundant passage is sequentially provided with a pressure regulating valve, a second switching valve and an electromagnetic valve in the air flow direction; and the brake cylinder pipe is sequentially provided with a first test opening and an air pressure sensor in the air flow direction. The railway locomotive braking system can accurately and efficiently detect the fault of theemergency redundant passage. The invention further discloses an emergency redundant passage detection method based on the rail locomotive braking system.

Description

technical field [0001] The invention relates to the technical field of failure detection of supporting components of a rail locomotive braking system, in particular to a rail locomotive braking system. The invention also relates to an emergency redundant path detection method based on the rail locomotive braking system. Background technique [0002] In a general rail locomotive braking system, the function of the emergency redundant channel is to transmit the total air pressure limited by the pressure regulating valve to the braking system on the emergency redundant channel by triggering emergency braking when the channel of the distribution valve fails. In the cylinder pipe, it achieves the function of redundancy of the brake cylinder pipeline to ensure the stable operation of the vehicle braking system. [0003] Since the distribution valve passage and the emergency redundant passage of the existing rail locomotive braking system share the same brake cylinder sensor, when...

AI Technical Summary

Problems solved by technology

[0003] Since the distribution valve passage and the emergency redundant passage of the existing rail locomotive braking system share the same brake cylinder sensor, when it is necessary to detect the failure of the emergency redundant passage, the distribution valve passage is usually cut off. Determine whether the emergency redundant path is normal. However, this detection method is cumbersome and inconvenient to operate, and the operation efficiency is low, which adversely affects the safe and efficient operation of the braking system.

Images