Compressor control method and device and railway vehicle

Abstract

The invention discloses a compressor control method. The compressor control method comprises the steps that a total wind pressure change rate and a total wind pressure value are acquired; and when thetotal wind pressure change rate is within a first preset range and the total wind pressure value is within a second preset range, starting of a corresponding compressor is controlled. According to the compressor control method, based on the judgment of the total wind pressure value, meanwhile, starting control over the compressor is carried out when the change rate of the total wind cylinder pipepressure value is within the first preset range, the variation tendency of the pressure value can be foresaw in advance according to the change rate of the pressure value, and therefore the energy consumption situation of air compressing can be pre-judged, the corresponding compressor is started to work in advance, more compressed air is stored for the vehicle, and the wind demand when vehicle load change is relatively large, the pressure change rate is accelerated and the pressure is reduced relatively quickly can be met.

Description

technical field [0001] The present invention relates to the technical field of compressors, and more specifically, to a compressor control method and device. Furthermore, the present application also relates to a rail vehicle comprising the compressor control device described above. Background technique [0002] Urban rail subway trains are generally composed of multiple vehicles, and two sets of air compressors are installed for the air source of the braking system and the air spring supply. The train control system will start a single compressor or two compressors at the same time according to the pressure value of the total air cylinder, and the pressure values ​​are set according to industry standards. In normal operation, the traditional compressor opening control method can meet the operation requirements of the vehicle. [0003] The traditional control method for turning on the air compressor of subway vehicles is: when the total air pressure is lower than 7.0bar, s...

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Problems solved by technology

[0004] However, in a specific time period of a special line, such as rush hour, the vehicle load can vary by up to 80%, resulting in a sharp increase in the compressed air consumption of the air spring, making it difficult for the traditional compressor opening control method to meet the vehicle's wind demand. need

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