Rail vehicle door control circuit and rail vehicle

Abstract

The application provides a rail vehicle door control circuit and a rail vehicle. The circuit comprises a door enabling operation module, a door opening operation module, a door closing operation module, a door selection switch, a left door controller and a right door controller. The door enabling operation module comprises a left enabling switch and a right enabling switch connected in parallel. The left enabling switch is connected to the left door controller, and the right enabling switch is connected to the right door controller. The door opening operation module comprises a left door opening switch and a right door opening switch connected in parallel. The left door opening switch is connected to the left door controller, and the right door opening switch is connected to the right door controller. The door selection switch comprises an interlocked door selection first contact and a door selection second contact. The door selection first contact is connected in series with the left enabling switch, and the door selection second contact is connected in series with the right enabling switch. The application solves the defect that the rail vehicle door is prone to misoperation and causes the opposite door to be opened in the prior art, and realizes safe opening and closing of the rail vehicle door.

Description

Technical Field

[0001] This invention relates to the field of train door control technology, and more particularly to a rail vehicle door control circuit and a rail vehicle. Background Technology

[0002] Platform screen doors (PSM) are systems installed along the edges of station platforms on rail transit lines, providing a controlled passageway between the platform's public area and the rail vehicles. The system includes sliding doors, emergency doors, and end doors on the platform. These doors open or close in conjunction with the train's doors as it enters the station, providing a passageway for passengers to board and alight. The use of PSMs effectively separates the public area on the platform from the trackside space, preventing safety hazards such as people falling onto the tracks and reducing driver anxiety when entering the station. This significantly improves the waiting environment, enhances train operation safety, and also reduces operating costs.

[0003] With the rapid development of the rail transit industry, people have increasingly higher requirements for the safety of rail transit vehicles, and the requirements for rail vehicle door control are becoming more stringent. It is necessary to prevent accidental opening of doors on the opposite side, which could lead to passengers falling out, while also ensuring that train doors can open quickly in special circumstances, such as in the event of a device malfunction, to avoid disrupting normal train operation. How to design a rail vehicle door control circuit to safely and reliably control the opening and closing of doors is a problem that urgently needs to be solved. Summary of the Invention

[0004] This invention provides a rail vehicle door control circuit to solve the defect in the prior art where rail vehicle doors are easily misoperated, causing the opposite door to open accidentally, and to achieve safe opening and closing of rail vehicle doors.

[0005] This invention provides a rail vehicle door control circuit, comprising: a door enabling operation module, a door opening operation module, a door closing operation module, a door selection switch, a left door controller, and a right door controller, wherein the door enabling operation module, the door opening operation module, and the door closing operation module are connected in parallel.

[0006] The door enabling operation module includes a left enabling switch and a right enabling switch connected in parallel. The left enabling switch is connected to the left door controller, and the right enabling switch is connected to the right door controller.

[0007] The door opening operation module includes a left door opening switch and a right door opening switch connected in parallel. The left door opening switch is connected to the left door controller, and the right door opening switch is connected to the right door controller.

[0008] The door selection switch includes an interlocked door selection first contact and a door selection second contact. The door selection first contact is connected in series with the left enable switch, and the door selection second contact is connected in series with the right enable switch.

[0009] The door closing operation module is used to send left door closing signals and right door closing signals to the left door controller and the right door controller respectively;

[0010] The left door controller opens the vehicle's left door after simultaneously receiving a left enable signal sent by the left enable switch closing and a left open door signal sent by the left open door switch closing. The right door controller opens the vehicle's right door after simultaneously receiving a right enable signal sent by the right enable switch closing and a right open door signal sent by the right open door switch closing.

[0011] According to a rail vehicle door control circuit provided by the present invention, the door closing operation module includes a left door closing switch and a right door closing switch connected in parallel, the left door closing switch being connected to the left door controller and the right door closing switch being connected to the right door controller;

[0012] The left door controller closes the left door of the vehicle after receiving a left door closing signal sent by the left door closing switch, and the right door controller closes the right door of the vehicle after receiving a right door closing signal sent by the right door closing switch.

[0013] According to a rail vehicle door control circuit provided by the present invention, the door selection switch further includes: an interlocked door selection third contact and a door selection fourth contact, the door selection third contact being connected in parallel with a left door closing switch, the door selection fourth contact being connected in parallel with a right function switch, the door selection first contact and the door selection fourth contact being interlocked, and the door selection second contact and the door selection third contact being interlocked.

[0014] According to a rail vehicle door control circuit provided by the present invention, a forced door opening switch is further included, the forced door opening switch including an interlocked forced door opening first contact and a forced door opening second contact, the forced door opening first contact being connected in parallel with a door enabling operation module, and the forced door opening second contact being connected in series with a door closing operation module.

[0015] According to a rail vehicle door control circuit provided by the present invention, the first contact for forced door opening is a normally open contact, and the second contact for forced door opening is a normally closed contact.

[0016] According to a rail vehicle door control circuit provided by the present invention, the left enable switch, right enable switch, left door open switch, right door open switch, left door close switch and right door close switch are all push-button switches.

[0017] According to the present invention, a rail vehicle door control circuit further includes a zero-speed relay module, which is connected in series with a door enable operation module, and the zero-speed relay module is turned on when the rail vehicle is stationary.

[0018] According to a rail vehicle door control circuit provided by the present invention, the zero-speed relay module includes a zero-speed relay contact and a zero-speed bypass switch connected in parallel, wherein the zero-speed relay contact is closed when the vehicle is stationary.

[0019] According to a rail vehicle door control circuit provided by the present invention, the zero-speed bypass switch is a normally open contact.

[0020] The present invention also provides a rail vehicle, including the rail vehicle door control circuit described in any of the above claims.

[0021] This invention provides a rail vehicle door control circuit that ensures accurate door opening by requiring the door controller to simultaneously receive both an enable signal and an open signal from the corresponding side. Furthermore, the invention incorporates a door selection switch within the door enable operation module. The first and second doors of this switch are interlocked; when one side's contact is closed, the other side's contact must be open. The first door selection contact is connected in series with the left enable switch, and the second door selection contact is connected in series with the right enable switch. This ensures that opening a single door on one side only activates either the left or right enable switch branch. Even if the enable switch on the opposite side is accidentally closed, the door controller on the opposite side will not receive an enable signal, preventing accidental opening of the opposite door. This invention overcomes the shortcomings of existing rail vehicle doors, which are prone to accidental opening of the opposite door, thus achieving safe opening and closing of rail vehicle doors. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the rail vehicle door control circuit provided by the present invention.

[0024] Reference numerals in the attached diagram: Door enable operation module 1, Left enable switch 11, Right enable switch 12, Door opening operation module 2, Left door opening switch 21, Right door opening switch 22, Door closing operation module 3, Left door closing switch 31, Right door closing switch 32, Door selection switch 4, Door selection first contact 41, Door selection second contact 42, Door selection third contact 43, Door selection fourth contact 44, Forced door opening switch 5, Forced door opening first contact 51, Forced door opening second contact 52, Zero-speed relay module 6, Zero-speed relay contact 61, Zero-speed bypass switch 62, Left door controller 7, Right door controller 8, Circuit breaker 9, Main control relay contact 10. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0026] The following is combined Figure 1 The first embodiment of the present invention describes a rail vehicle door control circuit.

[0027] This embodiment of a rail vehicle door control circuit includes: a door enabling operation module 1, a door opening operation module 2, a door closing operation module 3, a door selection switch 4, a left door controller 7, and a right door controller 8, wherein the door enabling operation module 1, the door opening operation module 2, and the door closing operation module 3 are connected in parallel.

[0028] The door enabling operation module 1 includes a left enabling switch 11 and a right enabling switch 12 connected in parallel. The left enabling switch 11 is connected to the left door controller 7, and the right enabling switch 12 is connected to the right door controller 8.

[0029] The door opening operation module 2 includes a left door opening switch 21 and a right door opening switch 22 connected in parallel. The left door opening switch 21 is connected to the left door controller 7, and the right door opening switch 22 is connected to the right door controller 8.

[0030] The door selection switch 4 includes an interlocked door selection first contact 41 and a door selection second contact 42. The door selection first contact 41 is connected in series with the left enable switch 11, and the door selection second contact 42 is connected in series with the right enable switch 12.

[0031] The door closing operation module 3 is used to send left closing signals and right closing signals to the left door controller 7 and the right door controller 8 respectively.

[0032] The left door controller 7 opens the left door of the vehicle after simultaneously receiving the left enable signal sent by the left enable switch 11 closing and the left open door signal sent by the left open door switch 21 closing. The right door controller 8 opens the right door of the vehicle after simultaneously receiving the right enable signal sent by the right enable switch 12 closing and the right open door signal sent by the right open door switch 22 closing.

[0033] like Figure 1As shown, the rail vehicle door control circuit includes a door enabling operation module 1, a door opening operation module 2, a door closing operation module 3, a door selection switch 4, a left door controller 7, a right door controller 8, a forced door opening switch 5, and a zero-speed relay module 6. Among them, the door enabling operation module 1, the door opening operation module 2, and the door closing operation module 3 are connected in parallel.

[0034] The door enabling operation module 1 includes a left enabling switch 11 and a right enabling switch 12 connected in parallel. The left door opening switch 21 is connected to the left door controller 7, and the right door opening switch 22 is connected to the right door controller 8.

[0035] The door opening operation module 2 includes a left door opening switch 21 and a right door opening switch 22 connected in parallel. The left door opening switch 21 is connected to the left door controller 7, and the right door opening switch 22 is connected to the right door controller 8.

[0036] The door closing operation module 3 includes a left door closing switch 31 and a right door closing switch 32 connected in parallel. The left door closing switch 31 is connected to the left door controller 7, and the right door closing switch 32 is connected to the right door controller 8.

[0037] The door selection switch 4 is a rotary switch, including interlocked door selection first contact 41 and door selection second contact 42, as well as interlocked door selection third contact 43 and door selection fourth contact 44. Door selection first contact 41 is connected in series with the left enable switch 11, door selection second contact 42 is connected in series with the right enable switch 12, door selection third contact 43 is connected in parallel with the left close switch 31, and door selection fourth contact 44 is connected in parallel with the right function switch. Furthermore, door selection first contact 41 and door selection fourth contact 44 are interlocked, and door selection second contact 42 and door selection third contact 43 are interlocked.

[0038] The forced door opening switch 5 is a rotary switch, including an interlocked forced door opening first contact 51 and forced door opening second contact 52. The forced door opening first contact 51 is connected in parallel with the door enabling operation module 1, and the forced door opening second contact 52 is connected in series with the door closing operation module 3. Furthermore, the forced door opening first contact 51 is a normally open contact, and the forced door opening second contact 52 is a normally closed contact.

[0039] The zero-speed relay module 6 is connected in series with the door enable operation module 1. The zero-speed relay module 6 is turned on when the rail vehicle is stationary. Specifically, the zero-speed relay module 6 includes a zero-speed relay contact 61 and a zero-speed bypass switch 62 connected in parallel. The zero-speed relay contact 61 is closed when the vehicle is stationary. Furthermore, the zero-speed bypass switch 62 is a normally open contact.

[0040] The left-side door controller 7 and the right-side door controller 8 are electronic door controllers, used to control the opening and closing of the left-side door and the right-side door of the rail vehicle, respectively. In this embodiment, the left-side door controller 7 opens the left-side door of the vehicle after simultaneously receiving a left enable signal sent by the closed left enable switch 11 and a left open door signal sent by the closed left door open switch 21; the right-side door controller 8 opens the right-side door of the vehicle after simultaneously receiving a right enable signal sent by the closed right enable switch 12 and a right open door signal sent by the closed right door open switch 22; the left-side door controller 7 closes the left-side door of the vehicle after receiving a left close door signal sent by the closed left door close switch 31; and the right-side door controller 8 closes the right-side door of the vehicle after receiving a right close door signal sent by the closed right door close switch 32.

[0041] This embodiment provides a rail vehicle door control circuit that ensures accurate door opening by requiring the door controller to simultaneously receive both an enable signal and an open signal from the corresponding side. Furthermore, the invention incorporates a door selection switch 4 within the door enable operation module. The door selection first contact 41 and door selection second contact 42 of the switch 4 are interlocked; that is, when the contact on one side is closed, the contact on the other side must be open. The door selection first contact 41 is connected in series with the left enable switch 11, and the door selection second contact 42 is connected in series with the right enable switch 12. This ensures that opening a single door on one side only activates either the left or right enable switch branch. Even if the enable switch on the other side is accidentally closed, the door controller on the other side will not receive an enable signal, preventing accidental opening of the opposite door. This invention solves the problem of accidental opening of opposite doors in existing rail vehicle technology, achieving safe opening and closing of rail vehicle doors.

[0042] In this embodiment, the door closing operation module 3 includes a left door closing switch 31 and a right door closing switch 32 connected in parallel. The left door closing switch 31 is connected to the left door controller 7, and the right door closing switch 32 is connected to the right door controller 8.

[0043] The left door controller 7 closes the left door of the vehicle after receiving the left door closing signal sent by the left door closing switch 31, and the right door controller 8 closes the right door of the vehicle after receiving the right door closing signal sent by the right door closing switch 32.

[0044] Compared to the dual-safety mechanism that requires the door controller to receive both the enable signal and the door opening signal simultaneously during the door opening process, the door controller only needs to receive the corresponding door closing signal to close the corresponding side door during the door closing process. This simplifies the door closing procedure and improves the operational efficiency of rail vehicles while ensuring their safety.

[0045] The door selection switch 4 further includes: an interlocked door selection third contact 43 and a door selection fourth contact 44, wherein the door selection third contact 43 is connected in parallel with the left door closing switch 31, the door selection fourth contact 44 is connected in parallel with the right function switch, the door selection first contact 41 and the door selection fourth contact 44 are interlocked, and the door selection second contact 42 and the door selection third contact 43 are interlocked.

[0046] The door selection first contact 41 and the door selection fourth contact 44 are interlocked, and the door selection second contact 42 and the door selection third contact 43 are interlocked. That is, the door selection first contact 41 and the door selection fourth contact 44 are closed or opened at the same time, and the door selection second contact 42 and the door selection third contact 43 are interlocked to be closed or opened at the same time. Based on the interlocking of the first contact 41 and the second contact 42 of the door selection, when the door controller on this side is engaged, the door controller on the other side will necessarily be disengaged. For example, if the first contact 41 of the door selection switch 4 is closed, then the fourth contact 44 of the door selection will be closed, and the second contact 42 and the third contact 43 of the door selection will be disengaged. At this time, the left door can be opened by sending a left enable signal and a left open signal to the left door controller 7. At the same time, since the fourth contact 44 of the door selection is also closed, the right door close switch 32 is short-circuited, and the right door controller 8 will continuously receive the right close signal. At this time, even if the right door controller 8 abnormally receives the right enable signal and the right open signal, the right door will not be opened. Ultimately, this ensures that the right door will not be opened accidentally while the left door is opened, further ensuring the safe opening and closing of the doors.

[0047] In this embodiment, it also includes: a forced door opening switch 5, which includes an interlocked forced door opening first contact 51 and a forced door opening second contact 52. The forced door opening first contact 51 is connected in parallel with the door enabling operation module 1, and the forced door opening second contact 52 is connected in series with the door closing operation module 3.

[0048] When circuits or switches malfunction, the enable and door opening signals cannot be transmitted to the corresponding door controllers, preventing the rail vehicle from opening its doors normally. Without identifying and repairing the fault, it is necessary to forcefully and quickly open the doors to avoid disrupting normal vehicle operation. By setting a forced door opening switch 5, the interlocked first contact 51 of the forced door opening is connected in parallel with the door enable operation module 1, and the second contact 52 of the forced door opening is connected in series with the door closing operation module 3. When forced door opening is required, the first contact 51 of the forced door opening is closed, and the second contact 52 of the forced door opening is opened, short-circuiting both the left enable switch 11 and the right enable switch 12. Both the left door controller 7 and the right door controller 8 receive enable signals. Closing the left door opening switch 21 or the right door opening switch 22 directly opens the corresponding side door. Simultaneously, the left door closing switch 31 and the right door closing switch 32 are both disconnected, rendering the closure of the left door closing switch 31 and the right door closing switch 32 ineffective, preventing the doors from closing accidentally.

[0049] In this embodiment, the first contact 51 for forced door opening is a normally open contact, and the second contact 52 for forced door opening is a normally closed contact.

[0050] The first contact 51 for forced door opening is set to a normally open contact, and the second contact 52 for forced door opening is set to a normally closed contact. Under normal circumstances, the first contact 51 is open and the second contact 52 is closed, allowing the door to open and close according to the normal procedure. In the event of forced door opening, the first contact 51 is closed and the second contact 52 is open, ensuring that the door can be opened quickly.

[0051] In this embodiment, the left enable switch 11, the right enable switch 12, the left door open switch 21, the right door open switch 22, the left door close switch 31, and the right door close switch 32 are all push-button switches.

[0052] The signal transmission is controlled by a push-button switch, which has the advantages of fast response speed and stable signal transmission function.

[0053] In this embodiment, a zero-speed relay module 6 is also included. The zero-speed relay module 6 is connected in series with the gate enable operation module 1. The zero-speed relay module 6 is turned on when the rail vehicle is stationary.

[0054] The door enable operation module 1 is connected in series with the zero-speed relay module 6. The zero-speed relay module 6 is turned on when the rail vehicle is stationary, so that the door enable operation module 1 can send signals normally when the rail vehicle is stationary, ensuring safety when the door is opened.

[0055] In this embodiment, the zero-speed relay module 6 includes a zero-speed relay contact 61 and a zero-speed bypass switch 62 connected in parallel. The zero-speed relay contact 61 closes when the vehicle is stationary.

[0056] The zero-speed relay module 6 includes a zero-speed relay contact 61 and a zero-speed bypass switch 62 connected in parallel. The zero-speed relay contact 61 closes when the vehicle is stationary to ensure safety when opening the door. Furthermore, considering that in the event of a zero-speed relay failure, the zero-speed bypass switch 62 can be closed to short-circuit the zero-speed relay, ensuring normal door opening.

[0057] In this embodiment, the zero-speed bypass switch 62 is a normally open contact.

[0058] The zero-speed bypass switch 62 is a rotary switch. Under normal circumstances, the zero-speed bypass switch 62 is a normally open contact. When the zero-speed relay fails, the zero-speed bypass switch 62 is operated to the forced position, and the normally open contact closes to open the door normally.

[0059] The working principle of this embodiment is as follows:

[0060] Under normal door opening and closing conditions:

[0061] When circuit breaker 9 closes, the vehicle is put into main control, main control relay contact 10 closes, the vehicle stops, and zero-speed relay contact 61 closes.

[0062] With door selector switch 4 in the left door position, door selector first contact 41 and door selector fourth contact 44 are closed. Operating left enable switch 11 closes, and left door controller 7 receives the left enable signal. Operating left open switch 21 closes, and left door controller 7 receives the left open signal. At this time, the left door of the vehicle is open. Operating right enable switch 12 and right open switch 22 at this time has no effect. Operating left close switch 31 closes, and left door controller 7 receives the left close signal. At this time, the left door of the vehicle is closed.

[0063] With door selector switch 4 in the right door position, door selector second contact 42 and door selector third contact 43 are closed. Operating right enable switch 12 closes, and right door controller 8 receives the right enable signal. Operating right open switch 22 closes, and right door controller 8 receives the right open signal. At this time, the right door of the vehicle is open. Operating left enable switch 11 and left open switch 21 at this time has no effect. Operating right close switch 32 closes, and right door controller 8 receives the right close signal. At this time, the right door of the vehicle is closed.

[0064] In the event of a zero-speed relay failure:

[0065] If the zero-speed relay contact 61 malfunctions, place the zero-speed bypass switch 62 in the forced position. At this time, the normally open contact of the zero-speed bypass switch 62 will close. Then, follow the above procedure to open and close the door.

[0066] In situations where it is necessary to force the door to open:

[0067] When the forced door opening switch 5 is placed in the forced position, the first contact 51 of the forced door opening is closed and the second contact 52 of the forced door opening is open. Both the left door controller 7 and the right door controller 8 receive the enable signal. The corresponding side door can be opened directly by closing the left door opening switch 21 or the right door opening switch 22. At this time, closing the left door closing switch 31 and the right door closing switch 32 will have no effect.

[0068] Accordingly, the second embodiment of the present invention also provides a rail vehicle, including the rail vehicle door control circuit described above.

[0069] The rail vehicle provided in this embodiment, by employing the aforementioned rail vehicle door control circuit, is also capable of safely opening and closing the rail vehicle doors.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rail vehicle door control circuit, characterized in that, include: The system includes a door enabling operation module, a door opening operation module, a door closing operation module, a door selection switch, a left-side door controller, and a right-side door controller. The door enabling operation module, the door opening operation module, and the door closing operation module are connected in parallel. The door enabling operation module includes a left enabling switch and a right enabling switch connected in parallel. The left enabling switch is connected to the left door controller, and the right enabling switch is connected to the right door controller. The door opening operation module includes a left door opening switch and a right door opening switch connected in parallel. The left door opening switch is connected to the left door controller, and the right door opening switch is connected to the right door controller. The door selection switch includes an interlocked door selection first contact and a door selection second contact. The door selection first contact is connected in series with the left enable switch, and the door selection second contact is connected in series with the right enable switch. The door closing operation module is used to send left door closing signals and right door closing signals to the left door controller and the right door controller respectively; The left door controller opens the left door of the vehicle after simultaneously receiving the left enable signal sent by the left enable switch closing and the left door open signal sent by the left door open switch closing. The right door controller opens the right door of the vehicle after simultaneously receiving the right enable signal sent by the right enable switch closing and the right door open signal sent by the right door open switch closing. The door selection switch further includes: an interlocked third door selection contact and a fourth door selection contact, wherein the third door selection contact is connected in parallel with the left door closing switch, the fourth door selection contact is connected in parallel with the right function switch, the first door selection contact and the fourth door selection contact are interlocked, and the second door selection contact and the third door selection contact are interlocked.

2. The rail vehicle door control circuit according to claim 1, characterized in that, The door closing operation module includes a left door closing switch and a right door closing switch connected in parallel. The left door closing switch is connected to the left door controller, and the right door closing switch is connected to the right door controller. The left door controller closes the left door of the vehicle after receiving a left door closing signal sent by the left door closing switch, and the right door controller closes the right door of the vehicle after receiving a right door closing signal sent by the right door closing switch.

3. The rail vehicle door control circuit according to claim 1, characterized in that, Also includes: A forced door opening switch includes an interlocked forced door opening first contact and a forced door opening second contact. The forced door opening first contact is connected in parallel with a door enabling operation module, and the forced door opening second contact is connected in series with a door closing operation module.

4. The rail vehicle door control circuit according to claim 3, characterized in that, The first contact for forced door opening is a normally open contact, and the second contact for forced door opening is a normally closed contact.

5. The rail vehicle door control circuit according to claim 2, characterized in that, The left enable switch, right enable switch, left door open switch, right door open switch, left door close switch, and right door close switch are all push-button switches.

6. The rail vehicle door control circuit according to any one of claims 1 to 5, characterized in that, It also includes a zero-speed relay module, which is connected in series with the gate enable operation module, and the zero-speed relay module is turned on when the rail vehicle is stationary.

7. The rail vehicle door control circuit according to claim 6, characterized in that, The zero-speed relay module includes a zero-speed relay contact and a zero-speed bypass switch connected in parallel. The zero-speed relay contact closes when the vehicle is stationary.

8. The rail vehicle door control circuit according to claim 7, characterized in that, The zero-speed bypass switch has a normally open contact.

9. A rail vehicle, characterized in that, include: The rail vehicle door control circuit as described in any one of claims 1 to 8.

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