A rail transit vehicle door emergency unlocking control circuit and method

Abstract

The present invention discloses a rail transit vehicle door emergency unlocking control circuit, including an emergency unlocking request circuit, a train signal control circuit, an emergency unlocking permission circuit and an emergency unlocking request relay EURR; wherein, one end of the emergency unlocking request circuit is connected to one end of the train signal control circuit, and the other end of the emergency unlocking request circuit is connected to the emergency unlocking request relay EURR; the other end of the train signal control circuit is connected to one end of the emergency unlocking permission circuit; the present invention also discloses a rail transit vehicle door emergency unlocking control method. The present invention is extended to all urban rail vehicles through specific scenario application requirements, and can safely and reliably control a three-speed emergency unlocking device; compared with traditional emergency unlocking control, it has multiple alarm modes and adopts a parallel circuit, and each handle does not interfere with each other, preventing mutual influence in the series mode.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit vehicle control circuits, and in particular to a rail transit vehicle door emergency unlocking control circuit and method. Background Art

[0002] As a way to open the door in an emergency, the control circuit of the door emergency unlocking includes an emergency unlocking request circuit and an emergency traction permission circuit. According to the three positions of the emergency unlocking device near the door leaf (reset position, request position, unlock position), the request circuit and permission circuit are extended.

[0003] At present, there are two types of emergency unlocking control circuits for conventional urban rail vehicles. One type does not have an independent emergency unlocking circuit, and the door status judgment depends only on the door interlocking circuit. The other type is an old-type emergency unlocking control circuit, in which the emergency unlocking request circuit is connected in series with the normally closed contacts of the emergency unlocking device request position of the entire vehicle, so that the relay is in a normally energized state. When an emergency unlocking request occurs, the circuit is disconnected to make the relay lose power. The biggest problem with this circuit is that the front end needs to have a front relay contact (such as an activation relay or a wake-up relay), which is easy to misreport the circuit status when the end is changed or the contact fails. On the other hand, the entire circuit is always in a energized state, and any contact failure will cause the circuit to lose power, which is not conducive to vehicle operation. In addition, the old-type emergency unlocking allows insufficient circuit conditions and cannot take into account various situations. Therefore, a new type of emergency unlocking control circuit is urgently needed to solve the above shortcomings.

[0004] A complete set of processing procedures is also needed for the processing of emergency unlocking requests after they are fed back to TCMS and ATC. The driver or OCC is prompted to perform corresponding operations and intelligent processing is performed at the same time. Therefore, it is urgent to propose a processing strategy to solve this problem.

[0005] For example, Chinese patent number CN108082199B discloses a passenger compartment door monitoring system for urban rail vehicles, including a passenger compartment door closed monitoring circuit and a passenger compartment door emergency unlocking monitoring circuit, the passenger compartment door closed monitoring circuit and the passenger compartment door emergency unlocking monitoring circuit are independent of each other, and the monitoring output ends of the passenger compartment door closed monitoring circuit and the passenger compartment door emergency unlocking monitoring circuit are both electrically connected to the input end of the train controller; the passenger compartment door closed monitoring circuit and the passenger compartment door emergency unlocking monitoring circuit are independent of each other, and the emergency unlocking request signal does not affect the passenger compartment door closed monitoring circuit, so that the train reduces faults caused by passenger mis-triggering during actual operation, and improves train availability, reliability and safety. However, the monitoring system is actually a door interlocking circuit monitoring, and the monitoring part belongs to an old-fashioned series circuit, and there is no control loop or post-TCMS push solution.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0007] In view of the problems in the related art, the present invention proposes a rail transit vehicle door emergency unlocking control circuit and method to overcome the above technical problems existing in the existing related art.

[0008] To this end, the specific technical solution adopted by the present invention is as follows:

[0009] According to one aspect of the present invention, there is provided a rail transit vehicle door emergency unlocking control circuit, comprising an emergency unlocking request circuit, a train signal control circuit, an emergency unlocking permission circuit and an emergency unlocking request relay EURR;

[0010] Among them, one end of the emergency unlocking request circuit is connected to one end of the train signal control circuit, and the other end of the emergency unlocking request circuit is connected to the emergency unlocking request relay EURR;

[0011] The other end of the train signal control circuit is connected to one end of the emergency unlocking permission circuit.

[0012] Further, the emergency unlocking request circuit includes a plurality of pairs of left emergency unlocking devices EUESX_L and right emergency unlocking devices EUESX_R;

[0013] Among them, the left emergency unlocking device EUESX_L and the right emergency unlocking device EUESX_R are alternately connected in parallel between the train signal control circuit and the emergency unlocking permission circuit.

[0014] Furthermore, the left emergency unlocking device EUESX_L and the right emergency unlocking device EUESX_R both have three adjustment positions, namely, a reset position, a request position and an unlock position.

[0015] Further, the train signal control circuit includes an input voltage of DC110V, a circuit protection circuit breaker EURCB, a right circuit protection circuit breaker EUACB_R, a left circuit protection circuit breaker EUACB_L, a right door emergency unlocking button REUPB, a left door emergency unlocking button LEUPB, a left zero speed relay ZVR1, a right zero speed relay ZVR2, a left carrier relay COR1, a right carrier relay COR2, a left cut-off relay ATCISR_L, a right cut-off relay ATCISR_R, a left door-keeping relay MDCR_L1, a left door-keeping relay MDCR_L2, a right door-keeping relay MDCR_R1 and a right door-keeping relay MDCR_R1;

[0016] The input voltage DC110V is connected to one end of the circuit protection circuit breaker EURCB, one end of the right circuit protection circuit breaker EUACB_R and one end of the left circuit protection circuit breaker EUACB_L in sequence, and the other end of the circuit protection circuit breaker EURCB is connected in parallel to one end of a plurality of left emergency unlocking devices EUESX_L and a plurality of right emergency unlocking devices EUESX_R;

[0017] The other end of the left circuit protection breaker EUACB_L is respectively connected to one end of the left carrier relay COR1 and one end of the left door closing relay MDCR_L1, the other end of the left carrier relay COR1 is connected to one end of the left door emergency unlocking button LEUPB, the other end of the left door closing relay MDCR_L1 is connected to one end of the left door closing relay MDCR_L2, the other end of the left door emergency unlocking button LEUPB and the other end of the left door closing relay MDCR_L2 are both connected to one end of the left cut-off relay ATCISR_L, and the other end of the left cut-off relay ATCISR_L is connected to one end of the left zero speed relay ZVR1;

[0018] The other end of the right circuit protection breaker EUACB_R is respectively connected to one end of the right carrier relay COR2 and one end of the right door closing relay MDCR_R2, the other end of the right carrier relay COR2 is connected to one end of the right door emergency unlocking button REUPB, the other end of the right door closing relay MDCR_R2 is connected to one end of the right door closing relay MDCR_R2, the other end of the right door emergency unlocking button REUPB and the other end of the right door closing relay MDCR_R2 are both connected to one end of the right cut-off relay ATCISR_R, and the other end of the right cut-off relay ATCISR_R is connected to one end of the right zero speed relay ZVR2.

[0019] Further, the emergency unlocking enabling circuit includes a plurality of pairs of left door controllers and right door controllers;

[0020] The other end of the left zero-speed relay ZVR1 is respectively connected in parallel with a plurality of left door controllers, and the other end of the right zero-speed relay ZVR2 is respectively connected in parallel with a plurality of right door controllers.

[0021] Furthermore, the left zero speed relay ZVR1 and the left door controller, as well as the right zero speed relay ZVR2 and the right door controller are connected to the train control monitoring system (TCMS).

[0022] Furthermore, the emergency unlocking request relay EURR includes twelve contacts, namely A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, and D3;

[0023] Among them, A1, B1, C1 and D1 are connected to the train control monitoring system (TCMS), and A2, B2, C2 and D2 are connected to the train signal control system (ATC).

[0024] According to another aspect of the present invention, there is also provided a rail transit vehicle door emergency unlocking control method, the method comprising the following steps:

[0025] S1. The passenger opens the emergency unlocking device of any door to the request position and sends an emergency unlocking request message;

[0026] S2, the Operation Control Center (OCC) controls the train and sends an emergency unlocking permission command to the door controller;

[0027] S3. The passenger moves the emergency unlocking device to the unlocking position to open the train door.

[0028] Furthermore, the passenger opens the emergency unlocking device of any door to the request position, and sending the emergency unlocking request information includes the following steps:

[0029] S11, the circuit protection circuit breaker EURCB, the right circuit protection circuit breaker EUACB_R and the left circuit protection circuit breaker EUACB_L are closed to keep the circuit connected;

[0030] S12: The passenger opens the left emergency unlocking device EUESX_L or the right emergency unlocking device EUESX_R of any door to the request position and sends an emergency unlocking request message;

[0031] S13, after the emergency unlocking request relay EURR is turned on, the contact is closed, and the emergency unlocking request information is fed back to the train signal control system (ATC) and the train control monitoring system (TCMS);

[0032] S14: The train sends an alarm and the Operation Control Center (OCC) confirms whether to send an evacuation order.

[0033] Furthermore, the operation control center (OCC) controls the train and sends an emergency unlocking permission command to the door controller, including the following steps:

[0034] S21. When the operation control center (OCC) determines to issue an evacuation command, if the train signal control system is normal, the door closing relay signal is set to 0. At this time, if the train is at zero speed, the emergency unlocking permission command is sent to each door controller;

[0035] S22. When the train signal control system (ATC) is in a fault state, under the condition of zero train speed, the driver presses the emergency traction permission button on the driver's console, and the emergency unlock permission command is sent to each door controller.

[0036] The beneficial effects of the present invention are: it can be promoted to all urban rail vehicles through specific scenario application needs, and the three-speed emergency unlocking device can be safely and reliably controlled; compared with the traditional emergency unlocking control, two optimizations are achieved: 1. It has multiple alarm modes and adopts parallel circuits, and the handles do not interfere with each other, preventing mutual influence in the series mode; 2. It has the linkage of the TCMS (train control monitoring system) system, and the screen is pushed in time, and the passenger can only move the request position to the emergency unlocking position after confirmation, so as to ensure the safety and health of the train and crew members. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 is a circuit schematic diagram of a rail transit vehicle door emergency unlocking control circuit according to an embodiment of the present invention;

[0039] Figure 2 It is a schematic diagram of an emergency unlocking request circuit in an emergency unlocking control circuit for a rail transit vehicle door according to an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of a train signal control circuit in a rail transit vehicle door emergency unlocking control circuit according to an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of an emergency unlocking permission circuit in an emergency unlocking control circuit for a rail transit vehicle door according to an embodiment of the present invention;

[0042] Figure 5 This is a schematic diagram of screen push information in a rail transit vehicle door emergency unlocking control circuit according to an embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of an emergency unlocking request relay EURR in a rail transit vehicle door emergency unlocking control circuit according to an embodiment of the present invention;

[0044] Figure 7 The present invention is a flow chart of a rail transit vehicle door emergency unlocking control method according to an embodiment of the present invention.

[0045] In the figure:

[0046] 1. Emergency unlocking request circuit; 2. Train signal control circuit; 3. Emergency unlocking permission circuit; 4. Emergency unlocking request relay EURR. DETAILED DESCRIPTION

[0047] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0048] According to one embodiment of the present invention, a rail transit vehicle door emergency unlocking control circuit is provided. Figure 1-6 As shown, it includes an emergency unlocking request circuit 1, a train signal control circuit 2, an emergency unlocking permission circuit 3 and an emergency unlocking request relay EURR4;

[0049] Among them, one end of the emergency unlocking request circuit 1 is connected to one end of the train signal control circuit 2, and the other end of the emergency unlocking request circuit 1 is connected to the emergency unlocking request relay EURR4; the other end of the train signal control circuit 2 is connected to one end of the emergency unlocking permission circuit 3.

[0050] In one embodiment, the emergency unlocking request circuit 1 comprises a plurality of pairs of left emergency unlocking devices EUESX_L and right emergency unlocking devices EUESX_R;

[0051] Among them, the left emergency unlocking device EUESX_L and the right emergency unlocking device EUESX_R are alternately connected in parallel between the train signal control circuit 2 and the emergency unlocking permission circuit 3.

[0052] In one embodiment, the left emergency unlocking device EUESX_L and the right emergency unlocking device EUESX_R both have three adjustment positions, namely, a reset position, a request position and an unlocking position.

[0053] In one embodiment, the train signal control circuit 2 includes an input voltage DC110V, a circuit protection circuit breaker EURCB, a right circuit protection circuit breaker EUACB_R, a left circuit protection circuit breaker EUACB_L, a right door emergency unlock button REUPB, a left door emergency unlock button LEUPB, a left zero speed relay ZVR1, a right zero speed relay ZVR2, a left carrier relay COR1, a right carrier relay COR2, a left cut-off relay ATCISR_L, a right cut-off relay ATCISR_R, a left door closing relay MDCR_L1, a left door closing relay MDCR_L2, a right door closing relay MDCR_R1 and a right door closing relay MDCR_R1;

[0054] The input voltage DC110V is connected to one end of the circuit protection circuit breaker EURCB, one end of the right circuit protection circuit breaker EUACB_R and one end of the left circuit protection circuit breaker EUACB_L in sequence, and the other end of the circuit protection circuit breaker EURCB is connected in parallel to one end of a plurality of the left emergency unlocking devices EUESX_L and a plurality of the right emergency unlocking devices EUESX_R;

[0055] The other end of the left circuit protection breaker EUACB_L is respectively connected to one end of the left carrier relay COR1 and one end of the left door closing relay MDCR_L1, the other end of the left carrier relay COR1 is connected to one end of the left door emergency unlocking button LEUPB, the other end of the left door closing relay MDCR_L1 is connected to one end of the left door closing relay MDCR_L2, the other end of the left door emergency unlocking button LEUPB and the other end of the left door closing relay MDCR_L2 are both connected to one end of the left cut-off relay ATCISR_L, and the other end of the left cut-off relay ATCISR_L is connected to one end of the left zero speed relay ZVR1;

[0056] The other end of the right circuit protection breaker EUACB_R is respectively connected to one end of the right carrier relay COR2 and one end of the right door closing relay MDCR_R2, the other end of the right carrier relay COR2 is connected to one end of the right door emergency unlocking button REUPB, the other end of the right door closing relay MDCR_R2 is connected to one end of the right door closing relay MDCR_R2, the other end of the right door emergency unlocking button REUPB and the other end of the right door closing relay MDCR_R2 are both connected to one end of the right cut-off relay ATCISR_R, and the other end of the right cut-off relay ATCISR_R is connected to one end of the right zero speed relay ZVR2.

[0057] In one embodiment, the emergency unlocking enabling circuit 3 includes a plurality of pairs of left door controllers and right door controllers;

[0058] The other end of the left zero-speed relay ZVR1 is respectively connected in parallel with a plurality of the left door controllers, and the other end of the right zero-speed relay ZVR2 is respectively connected in parallel with a plurality of the right door controllers.

[0059] In one embodiment, the ZVR2 and the right door controller are both connected to a train control monitoring system (TCMS).

[0060] In one embodiment, the emergency unlocking request relay EURR4 includes twelve contacts A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, and D3;

[0061] A1, B1, C1 and D1 are connected to the train control monitoring system (TCMS), and A2, B2, C2 and D2 are connected to the train signal control system (ATC).

[0062] According to another embodiment of the present invention, Figure 7 As shown, a rail transit vehicle door emergency unlocking control method is also provided, the method comprising the following steps:

[0063] S1. The passenger opens the emergency unlocking device of any door to the request position and sends an emergency unlocking request message, including the following steps:

[0064] S11, the circuit protection circuit breaker EURCB, the right circuit protection circuit breaker EUACB_R and the left circuit protection circuit breaker EUACB_L are closed to keep the circuit connected;

[0065] S12: The passenger opens the left emergency unlocking device EUESX_L or the right emergency unlocking device EUESX_R of any door to the request position and sends an emergency unlocking request message;

[0066] S13, after the emergency unlocking request relay EURR4 is turned on, the contact is closed, and the emergency unlocking request information is fed back to the train signal control system (ATC) and the train control monitoring system (TCMS);

[0067] S14: The train sends an alarm and the Operation Control Center (OCC) confirms whether to send an evacuation order.

[0068] S2. The operation control center (OCC) controls the train and sends an emergency unlocking permission command to the door controller, including the following steps:

[0069] S21. When the operation control center (OCC) determines to issue an evacuation command, if the train signal control system is normal, the door closing relay signal is set to 0. At this time, if the train is at zero speed, an emergency unlocking permission command is sent to each door controller;

[0070] S22. When the train signal control system (ATC) is in a fault state, under the condition of zero train speed, the driver presses the emergency traction permission button on the driver's console, and the emergency unlock permission command is sent to each door controller.

[0071] S3. The passenger adjusts the emergency unlocking device to the unlocking position to open the train door.

[0072] In actual operation, when the emergency unlocking device is operated to the request position, the normally open contact of the limit switch at the request position will be closed. At this time, the emergency unlocking request relay EURR4 will be energized, and the emergency unlocking request signal will be fed back to the on-board network (TCMS) (train control monitoring system) and the on-board ATC (signaling system) system. At this time, if the train overlaps with the platform area, emergency braking will be performed. If the train completely exceeds the platform area, the train will continue to run, and the "emergency unlocking request" signal will be used as an alarm signal to alarm in the driver's cab and OCC. If the OCC confirms that the passengers are in an emergency, the evacuation mode will be triggered, the train will stop in the section, and the handle in the emergency unlocking device can be turned to the unlocking position.

[0073] The emergency unlocking permission control circuit is divided into two circuits: ATC control and non-ATC control. It can be automatically controlled by the vehicle signal setting, or it can be manually controlled by the driver pressing a button when the ATC system fault is eliminated. It can realize the function of issuing an emergency unlocking permission command to the door controller, so that the emergency unlocking switch can be turned to the unlocking position.

[0074] In addition, the linkage control strategy of this emergency unlocking control circuit is: operate the emergency unlocking device to the unlocking position, and actuate the limit switch at the locking device. The door controller collects the information of the emergency unlocking device operation, and sends the signal to the TCMS (train control monitoring system) through the MVB (multi-function vehicle bus) network, so that the unlocking door information is displayed on the DDU (digital display unit). In addition, the door emergency unlocking information is sent to the PIS (passenger information system) through the TCMS for interlocking with the video surveillance system CCTV (video surveillance system). At this time, the door does not apply closing force, and the door emergency unlocking information is displayed on the display screen in the driver's cab. At this time, the door safety interlocking circuit is disconnected, the traction is blocked, and the train cannot start.

[0075] If the emergency unlocking device is accidentally opened to the unlocking position at a non-zero speed or the signal control car does not set the keep door closed signal to 0, the door motor will continue to apply the closing force for 5 minutes to prevent the door from being opened.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rail transit vehicle door emergency unlocking control circuit, characterized in that: It includes an emergency unlocking request circuit (1), a train signal control circuit (2), an emergency unlocking permission circuit (3) and an emergency unlocking request relay EURR (4); Wherein, one end of the emergency unlocking request circuit (1) is connected to one end of the train signal control circuit (2), and the other end of the emergency unlocking request circuit (1) is connected to the emergency unlocking request relay EURR (4); The other end of the train signal control circuit (2) is connected to one end of the emergency unlocking permission circuit (3); The emergency unlocking request circuit (1) comprises a plurality of pairs of left emergency unlocking devices EUESX_L and right emergency unlocking devices EUESX_R; The left emergency unlocking device EUESX_L and the right emergency unlocking device EUESX_R are alternately connected in parallel in sequence between the train signal control circuit (2) and the emergency unlocking permission circuit (3).

2. A rail transit vehicle door emergency unlocking control circuit according to claim 1, characterized in that: The left emergency unlocking device EUESX_L and the right emergency unlocking device EUESX_R both have three adjustment positions, namely, a reset position, a request position and an unlock position.

3. A rail transit vehicle door emergency unlocking control circuit according to claim 2, characterized in that: The train signal control circuit (2) comprises an input voltage of DC110V, a circuit protection circuit breaker EURCB, a right circuit protection circuit breaker EUACB_R, a left circuit protection circuit breaker EUACB_L, a right door emergency unlocking button REUPB, a left door emergency unlocking button LEUPB, a left zero speed relay ZVR1, a right zero speed relay ZVR2, a left carrier relay COR1, a right carrier relay COR2, a left cut-off relay ATCISR_L, a right cut-off relay ATCISR_R, a left door closing relay MDCR_L1, a left door closing relay MDCR_L2, a right door closing relay MDCR_R1 and a right door closing relay MDCR_R2; The input voltage DC110V is connected to one end of the circuit protection circuit breaker EURCB, one end of the right circuit protection circuit breaker EUACB_R and one end of the left circuit protection circuit breaker EUACB_L in sequence, and the other end of the circuit protection circuit breaker EURCB is connected in parallel to one end of a plurality of the left emergency unlocking devices EUESX_L and a plurality of the right emergency unlocking devices EUESX_R; The other end of the left circuit protection breaker EUACB_L is respectively connected to one end of the left carrier relay COR1 and one end of the left door closing relay MDCR_L1, the other end of the left carrier relay COR1 is connected to one end of the left door emergency unlocking button LEUPB, the other end of the left door closing relay MDCR_L1 is connected to one end of the left door closing relay MDCR_L2, the other end of the left door emergency unlocking button LEUPB and the other end of the left door closing relay MDCR_L2 are both connected to one end of the left cut-off relay ATCISR_L, and the other end of the left cut-off relay ATCISR_L is connected to one end of the left zero speed relay ZVR1; The other end of the right circuit protection breaker EUACB_R is respectively connected to one end of the right carrier relay COR2 and one end of the right door closing relay MDCR_R2, the other end of the right carrier relay COR2 is connected to one end of the right door emergency unlocking button REUPB, the other end of the right door closing relay MDCR_R2 is connected to one end of the right door closing relay MDCR_R2, the other end of the right door emergency unlocking button REUPB and the other end of the right door closing relay MDCR_R2 are both connected to one end of the right cut-off relay ATCISR_R, and the other end of the right cut-off relay ATCISR_R is connected to one end of the right zero speed relay ZVR2.

4. A rail transit vehicle door emergency unlocking control circuit according to claim 3, characterized in that: The emergency unlocking enabling circuit (3) comprises a plurality of pairs of left door controllers and right door controllers; The other end of the left zero-speed relay ZVR1 is respectively connected in parallel with a plurality of the left door controllers, and the other end of the right zero-speed relay ZVR2 is respectively connected in parallel with a plurality of the right door controllers.

5. A rail transit vehicle door emergency unlocking control circuit according to claim 4, characterized in that: The left zero-speed relay ZVR1 and the left door controller, as well as the right zero-speed relay ZVR2 and the right door controller are connected to the train control monitoring system.

6. A rail transit vehicle door emergency unlocking control circuit according to claim 5, characterized in that: The emergency unlocking request relay EURR (4) includes twelve contacts A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, D3; A1, B1, C1 and D1 are connected to the train control monitoring system, and A2, B2, C2 and D2 are connected to the train signal control system.

7. A rail transit vehicle door emergency unlocking control method, used for realizing the rail transit vehicle door emergency unlocking control circuit described in claim 6, characterized in that: The method comprises the following steps: S1. The passenger opens the emergency unlocking device of any door to the request position and sends an emergency unlocking request message; S2, the operation control center controls the train and sends an emergency unlocking permission command to the door controller; S3. The passenger adjusts the emergency unlocking device to the unlocking position to open the train door.

8. A rail transit vehicle door emergency unlocking control method according to claim 7, characterized in that: The passenger opens the emergency unlocking device of any door to the request position, and sending the emergency unlocking request information includes the following steps: S11, the circuit protection circuit breaker EURCB, the right circuit protection circuit breaker EUACB_R and the left circuit protection circuit breaker EUACB_L are closed to keep the circuit connected; S12: The passenger opens the left emergency unlocking device EUESX_L or the right emergency unlocking device EUESX_R of any door to the request position and sends an emergency unlocking request message; S13, after the emergency unlocking request relay EURR (4) is turned on, the contact is closed, and the emergency unlocking request information is fed back to the train signal control system and the train control monitoring system; S14: The train sends an alarm and the operation control center confirms whether to send an evacuation order.

9. A rail transit vehicle door emergency unlocking control method according to claim 8, characterized in that: The operation control center controls the train and sends an emergency unlocking permission command to the door controller, including the following steps: S21, when the operation control center determines to issue an evacuation command, if the train signal control system is normal, the door closing relay signal is set to 0. At this time, if the train is at zero speed, an emergency unlocking permission command is sent to each door controller; S22. When the train signal control system is in a fault state, under the condition of zero train speed, the driver presses the emergency traction permission button on the driver's console, and the emergency unlocking permission command is sent to each door controller.

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