A rail transit co 2 Refrigerant air conditioning control method

Abstract

The invention discloses a CO2 refrigerant air-conditioning control method for rail traffic. The method comprises the steps that a control unit receives outside fresh air temperature, wind supply temperature in a wind channel and wind return temperature in a compartment collected by a collecting unit in real time; the control unit determines the target temperature according to the outside fresh airtemperature, and the target temperature is determined and adjusted according to the target temperature and the wind return temperature; an action execution unit selects to enter a pre-cooling / preheating mode, an automatic mode, a refrigerating mode, a heating mode or a ventilating mode according to the outside fresh air temperature and the target temperature, and the temperature under the pre-cooling / preheating mode, the automatic mode, the refrigerating mode, the heating mode or the ventilating mode is adjusted. According to the track CO2 refrigerant air-conditioning control method, precisecontrol over the temperature in a track vehicle passenger room can be achieved, smooth change of the temperature is achieved, and comfortable riding experience is brought to passengers.

Description

technical field [0001] The invention relates to the field of locomotive air conditioners, in particular to a CO 2 Refrigerant air conditioning control method. Background technique [0002] With the development of modern technology, the air-conditioning system has been widely used in the rail transit industry as a necessary supporting equipment to improve passenger comfort; the air-conditioning control system is the core of the air-conditioning system, once a problem occurs, it will seriously affect the reliability and reliability of the entire vehicle. safety. Traditional refrigerant air-conditioning systems have been used for many years, and the control methods have been relatively perfect and mature, but CO 2 The operating pressure of refrigerant air conditioners is relatively high, and it is almost blank in China to use them in rail transit vehicle air conditioners. Therefore, how to apply CO in the field of rail transit 2 Refrigerant air-conditioning improves the eff...

AI Technical Summary

Problems solved by technology

The current control methods are all traditional refrigerant control methods, and the rail transit field uses CO 2 There is no mature control theory for air conditioning control methods, CO 2 Refrigerant air conditioning control method is not accurate enough

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