WO2022127140A1

WO2022127140A1 - Rail transit vehicle and ventilation control method and system therefor

Info

Publication number: WO2022127140A1
Application number: PCT/CN2021/110815
Authority: WO
Inventors: 李杨; 曹文祥; 林建鹯; 刘烁埼; 张�浩
Original assignee: 中车株洲电力机车有限公司
Priority date: 2020-12-15
Filing date: 2021-08-05
Publication date: 2022-06-23
Also published as: CN112498388A; CN112498388B

Abstract

Provided are a rail transit vehicle and a control method and system therefor. The rail transit vehicle comprises a cab (9) and a passenger compartment (10); the cab (9) is partitioned from the passenger compartment by means of a middle partition wall (1); a partition wall door (2) is mounted on the middle partition wall; a first grille (3) is mounted on the partition wall door; a second grille (13) is mounted on an air channel opening of the cab (9); and each vane (5) of the first grille and the second grille is connected, by means of a transmission mechanism, to a driving device for controlling the grilles to be opened or closed. When the external pressure of a train fluctuates violently, the cab in the train is partitioned from the passenger compartment while the internal space of the train is completely partitioned from the external environment of the train, such that the air tightness of the cab is improved; when a fire occurs in the cab and the passenger compartment in the vehicle independently or occurs in the cab and the passenger compartment simultaneously, linkage opening and closing of an air return grille on the partition wall door, an air supply grille of the air channel opening of the cab, an air inlet valve of an air conditioner fresh air device, and an exhaust valve of a waste exhaust device are implemented, such that flame and poison gas can be prevented from spreading and diffusing, poison gas exhaust is promoted, and the life safety of passengers and drivers is protected to the greatest extent.

Description

Rail transit vehicle and its ventilation control method and control system

technical field

The invention relates to the field of rail traffic, in particular to a rail traffic vehicle, a control method and a control system thereof.

Background technique

The rail transit vehicle includes a driver's cab and a passenger room. The driver's cab and the passenger room are separated by an intermediate partition wall, and a partition door is set on the intermediate partition wall; The air flow is realized; the air duct opening of the cab (the air duct opening is set above the partition wall and runs through the cab and the passenger room) is provided with an air supply grille, which is convenient for the ventilation of the cab. The driver's cab may not be provided with an independent air conditioner (including a fresh air device) and a waste exhaust device, or an independent air conditioner (including a fresh air device) and a waste exhaust device (the fresh air device of the air conditioner can ventilate the driver's cab and exhaust air through the intake valve) The device discharges the exhaust gas from the cab through the exhaust valve). The passenger room is equipped with an air-conditioning fresh air device, a waste exhaust device, etc. to achieve ventilation.

Nowadays, people have higher and higher requirements for the comfort and safety of rail vehicles. On the one hand, when a vehicle with poor airtightness passes through a tunnel opening or a tunnel air shaft, due to the introduction of the external pressure wave into the vehicle, it is easy to cause ear swelling and tinnitus, especially for drivers who work in the driver's cab for a long time. , this phenomenon will cause hearing damage. Therefore, how to improve the airtight performance of the driver's cab, reduce the damage to the driver's physiological health caused by air pressure fluctuations, and ensure the comfort of the ride needs to be considered in the design of the vehicle. On the other hand, when a fire breaks out in the car, how to prevent the spread and spread of flames and poisonous gas, promote the discharge of poisonous gas, and protect the life safety of passengers and drivers to the greatest extent should also be considered in the design of the vehicle.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a rail transit vehicle and a ventilation control method and control system thereof to improve the airtight performance of the driver's cab and reduce the damage to the driver's physiological health caused by air pressure fluctuations.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a rail transit vehicle, including a driver's cab and a passenger compartment; the driver's cab and the passenger compartment are separated by an intermediate partition wall; the intermediate partition wall is installed There is a partition door; the partition door is provided with a first grille; air is supplied from the passenger room to the driver's cab through an air duct between the driver's cab and the passenger room; The grille; the first grille and the second grille are provided with vanes; each vane is connected with a drive device for controlling the opening or closing of the vane through a transmission mechanism.

In the present invention, the grille is designed to be closed, and when the pressure wave with drastic changes in the outside world is introduced into the vehicle, the driving device can drive the grille to close (the grille closing means that all the blades of the grille are closed), thereby improving the driver's performance. The airtight performance of the chamber can reduce the damage to the driver's physiological health caused by air pressure fluctuations.

A smoke detector and a temperature sensor are installed in the driver's cab and the passenger compartment; both the smoke detector and the temperature sensor are electrically connected with the train control system. It is convenient to detect whether there is a fire in the car.

A pressure sensing device is installed in the driver's cab and/or the passenger compartment. It is convenient to detect the pressure signal in the car.

The present invention also provides a control method for the above-mentioned rail transit vehicle, the method comprising: when the total time constant of the part of the driver's cab is greater than the total time constant of the part of the passenger compartment (the total time constant of the driver's cab/cab All parts of the cab/passenger compartment are equivalent to one part, and the pressure relief test is carried out with the volume of the driver's cab/passenger compartment as the volume of the air tightness test of the components. The body volume is the total volume, and the calculated time constant) closes the first grille and the second grille to improve the air tightness of the cab.

The parts that require air tightness in the cab part (in the case of the cab with independent air conditioner and waste discharge device, the parts requiring air tightness are the hood, cab door, evacuation door, cab window, cab Windshield, driver's cab air conditioner (including air conditioner fresh air device), driver's cab waste discharge device, etc.; if the driver's cab does not have an independent air conditioner and waste discharge device, the components that require air tightness are the hood, driver's cab door, The total time constant of evacuation door, driver's cab window, driver's cab windshield, etc.) is greater than the air-tight parts of the passenger compartment (through passage, passenger compartment door, passenger compartment window, passenger room air conditioner (including air conditioner fresh air device), passenger compartment waste On the premise of the total time constant of the exhaust device, etc.), the cab is separated from the passenger cab, which can effectively improve the airtight performance of the cab.

The method of the present invention further includes: when the rate of change of the pressure in the vehicle exceeds a set threshold, or when the vehicle control system receives the pressure wave protection instruction sent by the ground signal system, controlling the intake valve of the fresh air device in the passenger room and the exhaust of the waste exhaust device The valve, the first grille, and the second grille are closed at the same time. Further reduce the damage to the driver's physical health caused by air pressure fluctuations.

The method of the present invention also includes: when the rate of change of the pressure in the vehicle does not exceed the set threshold, and the vehicle control system does not receive the pressure wave protection command sent by the pressure wave sensor device or the ground signal system, simultaneously opening the first grille and the second grille The grille, the intake valve of the fresh air unit in the passenger compartment and the exhaust valve of the exhaust device in the passenger compartment. Keep the interior of the car ventilated to ensure the comfort of passengers and riding.

When a fire is detected in the driver's cab or the passenger's cab alone, or a fire occurs in the driver's cab and the passenger's cab at the same time, the first grille, the second grille, the intake valve of the fresh air device of the passenger room air conditioner and the exhaust valve of the exhaust device of the passenger room are controlled at the same time. opening and closing.

If the driver's cab does not have an independent air-conditioning fresh air device and a waste exhaust device, if the alarm signal (fire alarm signal) of the driver's cab and the passenger compartment is detected, the first grille, the second grille, and the passenger room waste exhaust device will be controlled to exhaust. The valve is opened, and the intake valve of the fresh air device in the passenger compartment is closed; if only the alarm signal of the driver's cab is detected, the first grille and the second grille are controlled to close, the intake valve of the fresh air device in the passenger compartment, and the exhaust valve of the exhaust device in the passenger compartment are controlled. Open; if only the alarm signal of the passenger compartment is detected, the intake valve of the first grille, the second grille and the fresh air device in the passenger compartment will be controlled to be closed, and the exhaust valve of the waste exhaust device of the passenger compartment will be opened;

When the driver's cab is equipped with independent air conditioner (including fresh air device) and waste discharge device, if only the alarm signal of the driver's cab is detected, the intake valve of the first grille, the second grille and the fresh air device of the driver's cab will be controlled to close. The intake valve of the fresh air device in the passenger compartment, the exhaust valve of the exhaust exhaust device in the passenger compartment, and the exhaust valve of the exhaust exhaust device in the driver's cab are opened; if only the alarm signal of the passenger compartment is detected, the first grille, the second grille and the exhaust valve of the passenger compartment fresh air device will be controlled. The intake valve is closed, the exhaust valve of the exhaust device in the passenger compartment, the intake valve of the fresh air device in the cab, and the exhaust valve of the exhaust device in the cab are opened.

In the present invention, the smoke sensor and the temperature sensor can send the detected signals to the train control system, and the train control system can judge whether a fire has occurred according to the signals of the smoke sensor and/or the temperature sensor.

The present invention also provides a rail transit vehicle control system comprising computer equipment configured or programmed to perform the steps of the above method.

Compared with the prior art, the present invention has the following beneficial effects:

1. The present invention can not only completely isolate the internal space of the train from the external environment of the train, but also isolate the driver's cab from the passenger cab, so as to improve the airtight performance of the driver's cab;

2. When a fire occurs in the driver's cab and the passenger's cab alone, or the driver's cab and the passenger's cab are on fire at the same time, the first grille, the second grille, the air intake valve of the air conditioning fresh air device and the exhaust valve of the waste exhaust device can be realized. The linkage opening and closing can prevent the spread and spread of flames and poisonous gas, promote the discharge of poisonous gas, and protect the life safety of passengers and drivers to the greatest extent.

Description of drawings

Figure 1 is a sectional view of the driver's cab;

Figure 2 is a schematic structural diagram of the opening and closing mechanism of the air supply/return air grill;

Figure 3 is a top view of the driver's cab without independent air conditioning and waste discharge;

Fig. 4 is the top view of the cab with independent air conditioner and waste discharge according to the embodiment of the present invention;

FIG. 5 is a schematic diagram of no independent air conditioner and waste discharge control in a driver's cab according to an embodiment of the present invention;

6 is a schematic diagram of an independent air conditioner and waste discharge control in a driver's cab according to an embodiment of the present invention;

Fig. 7 is the control flow chart of no independent air conditioner and waste discharge in the driver's cab according to the embodiment of the present invention;

FIG. 8 is a flow chart of the control of independent air conditioning and waste discharge in the driver's cab according to the embodiment of the present invention.

Detailed ways

As shown in FIGS. 1 to 4 , the rail transit vehicle in Embodiment 1 of the present invention includes a driver's cab 9 and a passenger compartment 10 ; the driver's cab and the passenger compartment are separated by an intermediate partition wall 1 ; a partition wall 1 is installed on the intermediate partition wall 1 Wall door 2; a first grille 3 (return grille) is installed on the partition door 2; air is supplied from the passenger compartment to the driver's cab through the air duct 4 between the driver's cab and the passenger compartment; the air duct is in the A second grille 13 (air supply grille) is installed on the air duct set in the driver's cab; blades are provided on the first grille and the second grille, and each blade is connected to the blade 5 through a transmission mechanism. Open or close the drive unit connection.

As shown in Figure 2, the transmission mechanism includes a plurality of transmission shafts 8, one end of each transmission shaft is connected to a blade 5 of the grille, and the other end of the transmission shaft is connected to the output shaft of the motor 7, which drives the blades to open or close under the drive of the motor.

As shown in Figures 3 and 4, a sensor device 11 capable of sensing the rate of change of pressure inside the train is installed in the train (driver's cab and/or passenger compartment), or the train is equipped to receive and transmit the pressure wave protection command sent by the ground signal system ( The pressure wave protection instruction means that when the train runs to a certain point (the train passing through this point will generate a large pressure change rate in the train), the ground signal system at this point sends the train to close the fresh air valve and waste discharge valve. control commands) capabilities (eg TCMS).

As shown in FIG. 3 and FIG. 4 , a smoke detector and a temperature sensor 12 are installed in both the driver's cab and the passenger compartment.

The smoke detectors, temperature sensors, and pressure sensing devices are all electrically connected to the train control system.

As shown in Figure 3, independent air conditioners (including fresh air devices) and waste discharge devices may not be installed in the driver's cab, but the second grille set on the air ducts of the driver's cab can be used as the air conditioners of the driver's cabs (including the fresh air devices), The first grille set on the partition door is used as the waste discharge device of the driver's cab (exhaust gas is transported to the passenger compartment, and discharged out of the car through the passenger compartment waste discharge device); of course, an independent air conditioner (including a fresh air device) can also be installed in the driver's cab. and waste discharge device, as shown in Figure 4.

Embodiment 2 of the present invention is shown in FIGS. 5 to 8 .

Under the structure of FIG. 3 , when the control system issues a control command (open or close), the first grille, the second grille, the intake valve of the fresh air device in the passenger compartment, and the exhaust valve of the exhaust device in the passenger compartment act.

When the smoke and temperature fire detector detects a separate fire in the driver's cab and the passenger compartment, or a fire occurs in the driver's cab and the passenger compartment at the same time, it will send out three different alarm messages to the pressure wave/fire control system, the pressure wave/fire control system Sending out different control commands to simultaneously control the opening and closing of the first grille, the second grille, the intake valve of the air conditioning fresh air device and the exhaust valve of the waste exhaust device.

As shown in Figure 7, when the smoke and temperature fire detector detects a fire, if the driver's cab and the passenger compartment alarm at the same time, the control system controls the first grille, the second grille, and the exhaust valve of the passenger room waste discharge device to open. The intake valve of the fresh air unit in the passenger compartment is closed. If the driver's cab and the passenger's cab do not alarm at the same time, and only the driver's cab alarms, the first grille and the second grille will be controlled to close, and the intake valve of the fresh air device in the passenger compartment and the exhaust valve of the passenger's waste exhaust device will be opened; Control the intake valve of the first grille, the second grille and the fresh air device in the passenger compartment to close, and the exhaust valve of the exhaust device in the passenger compartment to open.

When the pressure change rate in the vehicle exceeds the set threshold, or when the vehicle control system receives the pressure wave protection command sent by the ground signal system, the control system controls the first grille, the second grille, the intake valve of the fresh air device in the passenger compartment, The exhaust valve in the passenger compartment is closed. Otherwise, control the first grille, the second grille, the intake valve of the fresh air device in the passenger compartment, and the exhaust valve of the exhaust device in the passenger compartment to open.

Under the structure of Figure 4, when the control system issues a control command (open or close), the first grille, the second grille, the intake valve of the fresh air device in the passenger compartment, the exhaust valve of the exhaust exhaust device in the passenger compartment, and the fresh air device in the driver's cab The intake valve of the cab and the exhaust valve of the exhaust device of the cab are activated.

As shown in Figure 8, when the smoke and temperature fire detector detects a fire, if the driver's cab and the passenger compartment alarm at the same time, the control system controls the first grille, the second grille, the exhaust valve of the passenger room waste discharge device, The exhaust valve of the cab waste discharge device 15 is opened, and the intake valve of the passenger compartment fresh air device and the intake valve of the cab fresh air device 14 are closed.

If the driver's cab and the passenger's cab do not alarm at the same time, and only the driver's cab alarms, the first grille, the second grille, and the intake valve of the driver's cab fresh air device are controlled to close, and the intake valve of the passenger's fresh air device and the exhaust device of the passenger room are exhausted. Valve, cab exhaust device exhaust valve open. If only the passenger compartment alarms, control the first grille, the second grille, the intake valve of the fresh air device in the passenger compartment to close, the exhaust valve of the exhaust device in the passenger compartment, the intake valve of the fresh air device in the driver's cab, and the exhaust of the exhaust device in the driver's cab. The valve is open.

When the pressure change rate in the vehicle exceeds the set threshold, or when the vehicle control system receives the pressure wave protection command sent by the ground signal system, it controls the first grille, the second grille, the intake valve of the fresh air device in the passenger compartment, and the passenger compartment. The exhaust valve of the exhaust device, the intake valve of the cab fresh air device, and the exhaust valve of the cab exhaust device are closed; otherwise, control the first grille, the second grille, the intake valve of the fresh air device in the passenger compartment, and the exhaust valve of the passenger compartment. The exhaust valve of the device, the intake valve of the cab fresh air device, and the exhaust valve of the cab exhaust device are opened.

In this embodiment, when the rate of change of the pressure in the vehicle exceeds one or several set thresholds (according to requirements or related standards, generally less than 0.5kPa/1s and/or 0.8kPa/3s), or when the train receives When the pressure wave protection command is sent by the ground signal system, that is, the train will reach the position where the pressure change rate exceeds the standard (this position is preset according to the demand or relevant standard requirements through the pressure change rate in the car, and the pressure change rate is generally less than 0.5kPa/ 1s and/or 0.8kPa/3s), the pressure wave/fire control system (ie, the control system) sends a control command to close the intake valve, waste exhaust valve, first grille, and second grille of the fresh air device at the same time.

When the pressure change rate in the vehicle does not exceed the set threshold, or when the ground signal system no longer sends pressure wave protection commands, the pressure wave/fire control system can control the intake air of the first grille, the second grille, and the fresh air device in the passenger compartment. The valve and the exhaust valve of the passenger compartment exhaust are opened at the same time.

The pressure wave/fire control system has the highest priority for the alarm signal sent by the heat and smoke detector.

The driver's cab is equipped with independent air conditioner (including fresh air device) and waste exhaust. In theory, the intermediate partition door can be designed as a fully enclosed type, but considering that the independent air conditioner (including fresh air device) and waste exhaust in the cab may fail, so In the embodiment of the present invention, the first grille and the second grille are provided regardless of whether the driver's cab has independent air conditioner (including fresh air device) and waste discharge and the cab does not have independent air conditioner (including fresh air device) and waste discharge.

In Embodiment 3 of the present invention, the train is equipped with a pressure wave/fire control system, which can receive the pressure signal of the pressure wave sensor device or the protection signal of the ground information system, and can simultaneously control the first grille, the second grille, the air conditioner Opening and closing of the intake valve of the fresh air unit and the exhaust valve of the waste exhaust unit. The pressure wave/fire control system can receive the alarm information of the smoke and temperature fire detectors, and can simultaneously control the opening of the first grille, the second grille, the intake valve of the air conditioning fresh air device and the exhaust valve of the waste exhaust device. close.

The following proves that the airtight performance of the cab can be improved by partitioning the cab from the passenger cab.

The airtightness of the whole vehicle is composed of the airtightness of each component. According to the static time constant method, the vehicle time constant τ (the time constant is an index used to measure the sealing performance) and the time constant of each component τ _i (i=1 , 2, ..., n) is similar to the parallel impedance law, such as formula (1):

The unique time constant τ _i value of each component for the vehicle volume can be obtained by the mutual conversion of the equivalent leakage area and the static time constant. Under different test conditions, the equivalent leakage area conversion coefficient of the same component is a _i , then the component τ _i can be calculated according to formula (2):

In the formula, V' is the volume of the sealing cavity in the air-tightness test of the component; t' is the time required for the air-tightness test of the component to drop from Δp ₁ ' to Δp ₂ '; V is the vehicle volume; Δp ₁ is the initial inside and outside the vehicle air-tightness test Pressure difference; Δp ₂ is the internal and external pressure difference at the end of the air tightness test of the whole vehicle; Δp ₁ ′ is the initial internal and external pressure difference of the component air tightness test _;

Here, the vehicle body volume is set as V _z , the vehicle time constant calculated by the vehicle body volume V _z is τ _z , the vehicle body time constant is τ _zv , and some parts of the passenger compartment (including the through passage, the passenger compartment door) , passenger compartment windows, passenger compartment air conditioners, passenger compartment waste discharge, etc.) the total time constant is τ _kb , some parts of the driver's cab (including the hood, the driver's cab door, the evacuation door, the driver's cab window, the driver's cab windshield, the driver's cab air conditioner) , cab waste discharge; or including hood, cab door, evacuation door, cab window, cab windshield) the total time _constant is τ _sb ; The time constant of the passenger compartment under the calculation of the volume V _k is τ _k , the time constant of the passenger compartment is τ _kv , and the total time constant of some parts of the passenger compartment (including the through passage, the passenger compartment door, the passenger compartment window, the passenger compartment air conditioner, the passenger compartment waste discharge, etc.) is τ _kb ′; the volume of the cab part is V _s , the time constant of the cab calculated by the volume V _s of the passenger cab part is τ _s , the time constant of the cab part is τ _sv , and the part of the cab is τ sv . (including hood, cab door, evacuation door, cab window, cab windshield, cab air conditioner, cab waste; or including hood, cab door, evacuation door, cab window, driver windshield) and the total time constant is τ _sb ′. According to formula (1), we have:

In order to simplify the calculation, it is assumed that the pressure drop parameters selected for all pressure _relief tests are the same, and the equivalent _leakage area conversion coefficient is 1; Let the pressure relief time of the part of the cab body be t _sv ; let the total pressure relief time of some parts of the passenger compartment (including the passageway, the passenger compartment door, the passenger compartment window, the passenger compartment air conditioner, the passenger compartment waste discharge, etc.) be t _kb , and the test volume be V _kb ; Set some parts of the driver's cab (including the hood, driver's cab door, evacuation door, driver's cab window, driver's cab windshield, driver's cab air conditioner, driver's cab waste row; The total pressure relief time is t _sb and the test volume is V _sb . According to formula (2), we have:

In formula (2) to formula (8):

Convert equations (6) to (8) into:

Divide equation (10) by equation (11):

Since t _zv =t _kv =t _sv , if we can compare the molecular part in formula (13)

with denominator part

The size of τ _z and τ _k can be deduced.

Convert formula (14) into:

Divide equation (16) by equation (15):

Substitute V _z =V _k +V _s into equation (17):

Comparing the magnitudes of V _k V _sb t _kb and V _z V _kb t _sb in equation (18), since V _k is smaller than V _z , and

therefore,

It can be seen that when the total time constant τ _kb of some parts of the passenger compartment (including the through passage, passenger compartment door, passenger compartment window, passenger compartment air conditioner, passenger compartment waste discharge, etc.) When the total time constant τ _sb of the window, cab windshield, cab air conditioner, cab waste discharge, etc.) is reversed to formula (13), it can be seen that the passenger cab time constant τ _k is smaller than the vehicle time constant τ _z .

In the same way, it can be inferred from equations (11) and (12) that when the total time constant τ _kb of some parts of the passenger compartment (including the through passage, the passenger compartment door, the passenger compartment window, the passenger compartment air conditioner, the passenger compartment waste discharge, etc.) is smaller than that of the driver’s cab part Components (including hood, cab door, evacuation door, cab window, cab windshield, cab air conditioner, cab waste; or including hood, cab door, evacuation door, cab window, When the total time constant τ _sb of the cab windshield), the cab time constant τ _s is greater than the vehicle time constant τ _z .

Through the above reasoning, it can be seen that some components in the cab (including hood, cab door, evacuation door, cab window, cab windshield, cab air conditioner, cab waste discharge; or including hood, cab door, etc. , evacuation door, driver's cab window, driver's cab windshield) total time constant is greater than the total time constant of some parts of the passenger compartment (including through passage, passenger compartment door, passenger compartment window, passenger compartment air conditioner, passenger compartment waste row, etc.) The driver's cab is separated from the passenger cab, which can effectively improve the air-tight performance of the driver's cab.

Claims

A rail transit vehicle includes a driver's cab and a passenger room; the driver's cab and the passenger room are separated by an intermediate partition wall; a partition door is installed on the intermediate partition wall; A grille; a second grille is arranged on the air duct of the driver's cab; it is characterized in that the first grille and the second grille are provided with blades; each of the blades is connected by a transmission mechanism and a driving device connect.
The rail transit vehicle according to claim 1, wherein a smoke detector and a temperature sensor are installed in the driver's cab and the passenger compartment; and both the smoke detector and the temperature sensor are electrically connected to a train control system.
The rail transit vehicle according to claim 1 or 2, wherein a pressure sensing device is installed in the driver's cab and/or the passenger compartment.
A method for controlling ventilation of rail transit vehicles, characterized in that the method comprises:

When the total time constant of the part of the cab is greater than the total time constant of the part of the passenger compartment, close the first grille on the partition door and the second grille on the cab air duct;

Wherein, the first grille and the second grille are provided with vanes; each of the vanes is connected with a drive device for controlling the opening or closing of the vane through a transmission mechanism.
The method for controlling ventilation of rail transit vehicles according to claim 4, wherein the parts of the driver's cab are a hood, a driver's cab door, an evacuation door, a driver's cab window, a driver's cab windshield, a driver's cab air conditioner, Cab waste disposal device; or, some parts of the cab are hood, cab door, evacuation door, cab window, cab windshield; some parts of the cab are through passage, cab door, cab car Windows, guest room air conditioners, and guest room waste disposal devices.
The rail transit vehicle ventilation control method according to claim 4, further comprising: when the rate of change of the pressure in the vehicle exceeds a set threshold, or when the vehicle control system receives the pressure wave protection instruction sent by the ground signal system, Control the intake valve of the fresh air device in the passenger compartment, the exhaust valve of the exhaust device in the passenger compartment, the first grille on the partition door, and the second grille on the air duct opening of the driver's cab to close at the same time.
The rail transit vehicle ventilation control method according to any one of claims 4 to 6, further comprising: when the pressure change rate in the vehicle does not exceed a set threshold, or the ground signal system does not send a pressure wave protection command, simultaneously Open the intake valve of the passenger compartment fresh air device, the exhaust valve of the passenger compartment exhaust device, the first grille and the second grille.
The ventilation control method for a rail transit vehicle according to any one of claims 4 to 6, wherein if an alarm signal of the driver's cab and the passenger compartment is detected, the first grille, the second grille, and the waste discharge device in the passenger room are controlled to discharge. The air valve is opened, and the intake valve of the fresh air device in the passenger room is closed; if only the alarm signal of the driver's cab is detected, the first grille and the second grille are controlled to close, and the intake valve of the fresh air device in the passenger room and the exhaust device in the passenger room are exhausted. The valve is opened; if only the alarm signal of the passenger room is detected, the intake valve of the first grille, the second grille and the fresh air device of the passenger room will be controlled to close, and the exhaust valve of the waste discharge device of the passenger room will be opened;

Or, if only the alarm signal of the driver's cab is detected, the first grille, the second grille, the intake valve of the driver's cab fresh air device are controlled to close, the intake valve of the passenger's fresh air device, the exhaust valve of the passenger's waste exhaust device, The exhaust valve of the exhaust device in the cab is opened; if only the alarm signal in the passenger compartment is detected, the intake valve of the first grille, the second grille and the fresh air device in the passenger compartment will be controlled to close, and the exhaust valve of the exhaust device in the passenger compartment and the fresh air in the cab will be controlled. The intake valve of the device and the exhaust valve of the cab waste exhaust device are opened.
A rail transit vehicle ventilation control system, characterized in that it comprises computer equipment; the computer equipment is configured or programmed to perform the steps of the method of any one of claims 4-8.