In-vehicle pressure fluctuation valve fan cooperative active control system based on big data

Abstract

The invention discloses a large data-based cooperative active control system for pressure fluctuation valves and fans in vehicles, which belongs to the field of control technology. The big data-based in-vehicle pressure fluctuation valve fan cooperative active control system detects the position, speed, and pressure signals inside and outside the train of the high-speed train in real time through the sensor module, and converts the collected signal through the signal acquisition and processing module and transmits it to the The control module based on big data, the control module based on big data matches the measured signals inside and outside the vehicle with the historical signals, calls out the valve and fan control signals of the same historical tunnel section in the database for identification and processing, and corrects them through the control algorithm to obtain the corrected Valve and fan control signals are sent to the valve and fan through the analog output module. By adjusting the valve opening and fan frequency to change the pressure in the high-speed train, the effect of controllable automatic adjustment can be well realized and the control cost can be saved. .

Description

technical field [0001] The invention belongs to the field of control technology, and in particular relates to a large data-based cooperative active control system for pressure fluctuation valves and fans in vehicles. Background technique [0002] In recent years, with the further speed up of my country's high-speed trains, many aerodynamic effects that are not obvious when high-speed trains run at low speeds have begun to appear, and people's requirements for train ride comfort are getting higher and higher. Rapidity and comfort are the themes of high-speed train development at present. Due to the increase in speed and the high-speed train is not a completely enclosed space, when the train passes through the tunnel at high speed, due to the impact of the airtight gap and the ventilation system, the outside of the train will be violent. The fluctuating tunnel waves are transmitted into the car, causing pressure changes in the car. The instantaneous large pressure change in th...

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Problems solved by technology

[0003] At present, these traditional passive control and active control methods of vehicle interior pressure are mainly to suppress pressure changes in the vehicle, but in the vehicle interior pressure protection system, when valves and fans act alone as actuators, they can only ensure that the vehicle interior pressure is at a certain level. Fluctuations within the range, does not completely eliminate pressure fluctuations in the car

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