Method for controlling air source system for railway vehicle

Abstract

The invention provides a method for controlling an air source system for a railway vehicle. The method comprises the following steps that: a local control unit, which corresponds to a compartment of a compressor, is arranged in the railway vehicle, acquires first information of the compartment and transmits the information to a central control unit of the railway vehicle through a vehicle network; the local control unit receives a control message for controlling on and off of the compressor according to the first information and second information transmitted by other compartments, wherein the control message is returned by the central control unit through the vehicle network; and the local control unit, which corresponds to the compartment of the compressor arranged in the railway vehicle, controls on and off of the compressor according to the control message. By the method for controlling the air source system for the railway vehicle, the compressors distributed at different positions of a train are controlled uniformly; airpipe pressure of the train is guaranteed precisely; impact on power supply of the train is reduced; and service life of the compressor is prolonged.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle braking, and in particular relates to a control method of an air source system for rail vehicles. Background technique [0002] Compressed air is widely used in various equipment of rail vehicles, such as doors, toilets, air suspension, bow lifts, etc. The most important application is as a power source for air friction braking. Because air friction braking is currently used by almost all rail vehicles, it is related to the safety of vehicle operation, so the air source system occupies a very important position on rail vehicles. The core component of the air source system is the air compressor. The control of the compressor is the guarantee for the safe operation of the train. [0003] In the prior art, the local control unit corresponding to the compartment equipped with the compressor monitors whether the air duct pressure deviates from the normal range through the pressure sensor in the c...

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Problems solved by technology

[0003] In the prior art, the local control unit corresponding to the compartment equipped with the compressor monitors whether the air duct pressure deviates from the normal range through the pressure sensor in the compartment, and if the pressure is too low, starts the compressor in the compartment, but If the compressors in different carriages start at the same time, the generated starting current will be large, which will have an impact on the power supply system in the train. If the pressure is too high, the compressor will be turned off. If the air duct pressure is short due to train braking If the interior decreases, the local control unit will start the compressor again in a short time, and it is possible that the compressors in the cabin will start at the same time again, so that all the compressors will work continuously for a long time

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