CN112878819A

CN112878819A - Vehicle door emergency unlocking device, control method and railway vehicle

Info

Publication number: CN112878819A
Application number: CN202110077968.4A
Authority: CN
Inventors: 王田农; 韩庆军; 王延翠; 田庆; 陈波
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-06-01
Anticipated expiration: 2041-01-20
Also published as: CN112878819B

Abstract

The invention provides an emergency unlocking device for a vehicle door, a control method and a railway vehicle. The emergency unlocking device for the vehicle door comprises: the system comprises a door lock, a door controller and a controller; the door lock comprises a locking position for locking the door lock, a request bit for sending an unlocking request instruction to the door controller and an unlocking bit for unlocking the door lock; the gate controller is used for sending an unlocking request signal to the controller and receiving a signal sent by the controller; the controller is used for acquiring an unlocking feedback signal based on the unlocking request signal and judging. According to the vehicle door emergency unlocking device, the control method and the rail vehicle, the function of controlling whether passengers are allowed to unlock emergently is realized through the cab, and potential safety hazards caused by misoperation of the passengers and operation of the vehicle door emergency unlocking device by lawless persons to open the vehicle door are avoided.

Description

Vehicle door emergency unlocking device, control method and railway vehicle

Technical Field

The invention relates to the technical field of railway vehicles, in particular to an emergency unlocking device for a vehicle door, a control method and a railway vehicle.

Background

The traditional train door emergency unlocking device only comprises two gears of a normal position and an unlocking position, and a passenger can rotate the door emergency unlocking device to the unlocking position by himself or herself without considering potential safety hazards caused by misoperation of the passenger and illegal persons operating the door emergency unlocking device to open the door.

Disclosure of Invention

The invention provides a vehicle door emergency unlocking device, which is used for solving the defects that a vehicle door is opened due to misoperation of passengers and operation of a vehicle door emergency locking device by a lawless person in a rail vehicle in the prior art, and realizing that whether a vehicle door opening request is allowed or not is controlled by a cab in the running of the rail vehicle, so that potential safety hazards caused by misoperation of the passengers and operation of the vehicle door emergency unlocking device by the lawless person to open the vehicle door are avoided.

The invention further provides a control method of the vehicle door emergency unlocking device, which is used for solving the defects that the vehicle door is opened by the vehicle door emergency unlocking device operated by passengers and lawless persons in the prior art, realizing the function of controlling whether the passengers are allowed to unlock the vehicle door emergently by a cab, and avoiding potential safety hazards caused by the passengers operating by mistake and the lawless persons operating the vehicle door emergency unlocking device to open the vehicle door.

The invention further provides the railway vehicle.

According to a first aspect of the present invention, there is provided a vehicle door emergency unlocking device comprising: the system comprises a door lock, a door controller and a controller;

the door lock comprises a locking position for locking the door lock, a request bit for sending an unlocking request instruction to the door controller and an unlocking bit for unlocking the door lock;

the gate controller is used for sending an unlocking request signal to the controller and receiving a signal sent by the controller;

the controller is used for acquiring an unlocking feedback signal based on the unlocking request signal and judging.

According to one embodiment of the invention, the door lock comprises: the rotary switch, the trigger part, the rotating shaft and the limit switch;

the rotary switch drives the trigger part to trigger the limit switch through the rotating shaft;

the limit switch is connected with the gate controller;

when the rotary switch is suspended to the request position, the trigger part triggers the limit switch to send an unlocking request instruction to the door controller;

when the rotary switch hovers to the unlocking position, the trigger part triggers the limit switch to send an unlocking starting instruction to the door controller.

Specifically, the present embodiment provides an implementation manner of a door lock, so as to solve a defect that a passenger can rotate a door emergency unlocking device to an unlocking position by himself/herself in the prior art, and achieve the effect of obtaining an unlocking request of a door by setting a request position and the unlocking position, and whether to permit unlocking according to actual conditions.

According to an embodiment of the invention, the door lock further comprises: the rotary switch is arranged on one side of the shell; the trigger part and the limit switch are arranged on the shell opposite to the other side of the rotary switch.

Specifically, the present embodiment provides another implementation of a door lock, in which the housing is arranged to integrate the emergency unlocking device of the vehicle door, the trigger part and the limit switch are arranged on the other side of the relative rotation switch, and the trigger part and the rotation switch are connected through the rotating shaft.

According to an embodiment of the invention, the housing is provided with a recess, the rotary switch being arranged in the recess.

Particularly, the embodiment provides another implementation manner of the door lock, and the groove is formed in the housing, so that the rotary switch is accommodated, and the problem that the rotary switch is located outside the housing and is scratched is avoided.

According to an embodiment of the invention, the door lock further comprises: the locking mechanism comprises a first locking hook, a second locking hook and a locking mechanism;

the first lock hook is connected with the rotary switch through the rotating shaft;

the second lock hook is connected with the locking mechanism;

the locking mechanism is connected with the shell and used for realizing buckling of the first locking hook and the second locking hook.

Specifically, the present embodiment provides another implementation of a door lock, and the locking and unlocking of the emergency unlocking device for a vehicle door are realized by providing a first locking hook, a second locking hook and a locking mechanism.

In an application scenario, the locking mechanism is an electromagnet, and the first locking hook and the second locking hook are buckled and opened through power-on and power-off.

According to an embodiment of the invention, the door lock further comprises: the support structure comprises a first support plate and a second support plate, wherein the first support plate and the second support plate are connected to form an L-shaped support structure;

wherein the first support plate is connected with the shell;

the second supporting plate is arranged in parallel to the axial direction of the rotating shaft;

the locking mechanism is connected with the second supporting plate and drives the second lock hook to be matched with the first lock hook along the radial direction of the rotating shaft.

Specifically, the present embodiment provides another door lock embodiment, which provides a mounting plane for the locking mechanism by providing the first support plate and the second support plate, and also makes the arrangement of the emergency unlocking device for the vehicle door more reasonable.

According to an embodiment of the invention, the door lock further comprises: the device comprises a first limiting plate, a second limiting plate and a third limiting plate;

the first limiting plate is connected with the shell;

the second limiting plate is connected with the first limiting plate and is connected towards one side far away from the shell;

the third limiting plate is connected with the second limiting plate and is arranged in parallel with the first limiting plate;

the first limiting plate, the second limiting plate and the third limiting plate surround to form an accommodating cavity for accommodating the first lock hook and the triggering part.

Particularly, this embodiment provides still an embodiment of lock, through setting up first limiting plate, second limiting plate and third limiting plate, provides the mounted position for limit switch, also provides the mode of using for trigger part and limit switch's cooperation.

According to an embodiment of the invention, the limit switch comprises: the unlocking device comprises a first limit used for sending an unlocking request instruction and a second limit used for sending an unlocking starting instruction.

Specifically, the present embodiment provides an implementation manner of a limit switch, and by setting a first limit and a second limit, an unlocking request instruction and an unlocking start instruction are sent to a door controller.

According to one embodiment of the invention, the trigger is a cam;

wherein the trigger part includes: first wheel and second wheel:

the first wheel body is used for triggering the first limit;

the second wheel body is used for triggering the second limiting position.

Specifically, the present embodiment provides an implementation manner of the triggering portion, and the first wheel and the second wheel are arranged to realize the cooperation with the first limit and the second limit, so as to realize the transmission of the unlocking request signal and the unlocking start signal.

According to a second aspect of the present invention, there is provided a control method of a vehicle door emergency unlocking device, comprising:

the gate controller acquires an unlocking request instruction of the door lock at a request position and sends an unlocking request signal to the controller;

the controller continuously acquires an unlocking feedback signal based on the unlocking request signal and judges the unlocking feedback signal;

responding to the unlocking feedback of the unlocking feedback signal to be negative, the controller sends an unlocking prohibition signal to the door controller, the door controller keeps the locking state of the door lock based on the unlocking prohibition signal, and the door lock is adjusted to be locked;

and if the unlocking feedback responding to the unlocking feedback signal is yes, the controller generates a control decision based on the operation parameters of the rail vehicle and executes the control decision.

According to an embodiment of the present invention, the step of acquiring, by the gate controller, an unlocking request command of the door lock at a request bit and sending an unlocking request signal to the controller specifically includes:

responding to the obtained unlocking request signal, and obtaining and judging the state parameters of the door lock by the door controller;

responding to the condition that the door lock is in a locking state, the door controller sends an unlocking request signal to the controller;

and responding to the situation that the door lock is in an unlocking state, and sending an unlocking request signal to the controller after the door controller adjusts the door lock to a locking state.

Specifically, the present embodiment provides an implementation manner for determining the door lock state parameter according to the acquired unlocking request signal, and by acquiring the door lock state in advance, the problem that the vehicle door is opened due to the misoperation of the vehicle door by the passenger is avoided.

It should be noted that, when the door lock is in the request position, it is described that the vehicle door is operated at this time, and then the door lock state is judged, so that the situation that the vehicle door is opened when the door lock is adjusted to the unlock position and the door lock is in the unlock state, and corresponding potential safety hazards and the like are brought about is avoided.

According to an embodiment of the present invention, if the unlocking feedback in response to the unlocking feedback signal is yes, the step of generating a control decision based on a rail vehicle operation parameter by the controller and executing the control decision specifically includes:

in response to the fact that the obtained unlocking feedback is yes, the controller obtains a speed parameter of the rail vehicle as the running parameter and judges the speed parameter;

responding to the unlocking feedback of the speed parameter feedback to be negative, the controller sends an unlocking prohibition signal to the door controller, the door controller keeps the locking state of the door lock based on the unlocking prohibition signal, and the door lock is adjusted to the locking position;

and responding to the unlocking feedback of the speed parameter feedback, namely, the controller acquires and judges the position parameter of the rail vehicle.

Specifically, the embodiment provides an implementation method for acquiring and judging the speed parameter of the rail vehicle according to feedback of the state parameter of the door lock, and after the feedback of unlocking permission is received, the speed parameter of the rail vehicle is acquired and judged, the setting mainly highlights the dominant position of a cab in the whole operation and control, and when the door lock is in a request position, the cab is requested to be judged preferentially, so that the problem of communication resource waste caused by the fact that the door lock is in the request position due to the situation of misoperation of passengers and the like is solved.

In one application scenario, the unlocking feedback result of the speed parameter feedback takes whether the running speed of the rail vehicle is zero as a judgment standard, and if the running speed of the rail vehicle is zero, the judgment is yes, and otherwise the judgment is no.

In another application scenario, the unlocking feedback result of the speed parameter feedback is determined by taking whether the running speed of the rail vehicle is lower than a preset running speed as a determination standard, and if the running speed of the rail vehicle is lower than the preset running speed, the determination is yes, otherwise, the determination is no.

According to an embodiment of the present invention, if the unlocking feedback in response to the speed parameter feedback is yes, the step of acquiring and determining the position parameter of the rail vehicle by the controller specifically includes:

in response to the fact that the unlocking feedback fed back by the position parameter is negative, the controller sends an unlocking prohibition signal to the door controller, the door controller keeps the locking state of the door lock based on the unlocking prohibition signal, and the door lock is adjusted to the locking position;

and responding to the unlocking feedback of the position parameter feedback, wherein the controller sends a request passing signal to the door controller, and the door controller opens the unlocking position of the door lock based on the request passing signal and keeps the locking state of the door lock.

Specifically, the embodiment provides an implementation manner for acquiring and judging the position parameters of the rail vehicle according to the feedback of the speed parameters of the rail vehicle, and after the running speed of the rail vehicle is judged, the relative position of the rail vehicle in a running section is judged, so as to know whether the unlocking position of the door lock can be unlocked at this time.

In one application scenario, for a rail vehicle running in a section, a door emergency unlocking request is operated, the vehicle is not braked to stop emergently, and the train runs to the next station to stop and open the door.

In another application scenario, for a train started from a station, a door emergency unlocking request is operated, the train is triggered to brake emergently when the running distance is less than half of the train, and the train continues to run after the running distance exceeds half of the train.

According to an embodiment of the present invention, after the step of generating a control decision based on the operation parameters of the rail vehicle and executing the control decision by the controller in response to the unlocking feedback signal is yes, the method further includes:

in response to the door lock not being adjusted to the unlocked position within a preset execution time, the door controller adjusts the door lock to the locked position and maintains the locked state of the door lock.

Specifically, the embodiment provides an implementation manner of corresponding operations after a control decision is executed, and the execution time after the control decision is generated is monitored, so that the door lock is ensured to be restored to the working state after the door lock meets a request and the reasonable operation time.

In one application scenario, when the passenger repeatedly turns and restores the handle in a short time, the controller considers that an unlocking request is issued upon receiving the first request signal, and does not process the unlocking request in a certain time period thereafter.

According to an embodiment of the present invention, in the step of continuously acquiring and determining the unlocking feedback signal based on the unlocking request signal, the method specifically further includes:

and in response to the unlocking feedback of the unlocking feedback signal within the preset feedback time being vacant, the controller generates the control decision based on the operation parameters of the rail vehicle and executes the control decision.

Specifically, the present embodiment provides an implementation manner in which the unlocking feedback of the unlocking feedback signal is absent, and when the driver fails to process the request in time due to some circumstances or the driver cannot process the unlocking request, the unlocking request can still be responded.

It should be noted that the unlocking feedback is empty, which means that the unlocking feedback about the unlocking feedback signal is not received within the preset feedback time.

According to an embodiment of the present invention, the preset feedback time is between 30 seconds and 120 seconds.

According to an embodiment of the invention, the method further comprises:

and responding to the power failure of the controller and/or the door controller, opening an unlocking position of the door lock, and continuously keeping the door lock in a locking state.

Specifically, the present embodiment provides an implementation mode of power failure of the controller and/or the door controller, when the controller and/or the door controller is powered off, in order to ensure smooth opening of the door of the rail vehicle, the unlocking position of the door lock is opened, so as to facilitate escape of passengers in an emergency.

According to a third aspect of the invention, a rail vehicle is provided with the door emergency unlocking device, or the control method of the door emergency unlocking device is adopted when the door emergency unlocking is executed.

One or more technical solutions in the present invention have at least one of the following technical effects: according to the vehicle door emergency unlocking device, the control method and the rail vehicle, the function of controlling whether passengers are allowed to unlock emergently is realized through the cab, and potential safety hazards caused by misoperation of the passengers and operation of the vehicle door emergency unlocking device by lawless persons to open the vehicle door are avoided.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the arrangement of the emergency unlocking device for the vehicle door provided by the invention;

FIG. 2 is a schematic view of a door lock of the emergency unlocking apparatus for a vehicle door according to the present invention;

FIG. 3 is a second schematic structural view of a door lock of the emergency door unlocking device of the present invention;

fig. 4 is a third schematic structural view of a door lock in the emergency unlocking device for a vehicle door provided by the invention;

FIG. 5 is a fourth schematic view of the structure of the door lock in the emergency unlocking device for the vehicle door provided by the present invention;

FIG. 6 is a fifth schematic view of the door lock of the emergency unlocking device for vehicle door provided by the present invention;

FIG. 7 is a sixth schematic view showing the structure of a door lock in the emergency release device for a vehicle door according to the present invention;

FIG. 8 is a logic flow diagram of a control method of the emergency unlocking device for the vehicle door provided by the invention.

Reference numerals:

10. a door lock; 11. A rotary switch; 12. A trigger section;

121. a first wheel body; 122. A second wheel body; 13. A rotating shaft;

14. limit switch 141, first limit 142, second limit

15. Casing 151, recess 152, first backup pad

153. A second support plate; 154. A first limit plate; 155. A second limiting plate;

156. a third limiting plate; 16. A first latch hook; 17. A second latch hook;

18. a locking mechanism; 20. A gate controller; 30. A controller;

40. a driver's cab; 50. A carriage; 60. A lock position;

70. a request bit; 80. And unlocking the bit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Fig. 1 is a schematic diagram of the arrangement of the emergency unlocking device for the vehicle door provided by the invention. Fig. 1 mainly shows the application of the emergency unlocking device for the vehicle door in the railway vehicle, and as can be seen from fig. 1, a controller 30 is arranged in a cab 40, and a door controller 20 and a door lock 10 connected with the door controller 20 are arranged in a carriage 50.

It should be noted that fig. 1 only shows one car 50, and in practical applications, there may be multiple cars, and only one of them is shown for the convenience of viewing.

It should also be noted that fig. 1 merely illustrates the connection relationship, and does not represent the serial connection between the controller 30 and each of the gaters 20.

Fig. 2 to 7 are schematic structural views of a door lock 10 in the emergency door unlocking device according to the present invention. Fig. 2 to 7 show a schematic structural diagram of a door lock 10, and as can be seen from fig. 2, a lock bit 60, a request bit 70 and an unlock bit 80 are provided on the door lock 10, wherein the lock bit 60 is a normal operating position of the door lock 10, and when a knob of the door lock 10 is rotated to the request bit 70, an unlock request signal is sent to the door controller 20, at this time, the door lock 10 is still in a locked state, and the unlock bit 80 is in a closed state, that is, the knob of the door lock 10 can only reach the request bit 70, but cannot be rotated to the unlock bit 80 for unlocking the door lock 10.

Further, when the doorcontroller 20 obtains the corresponding operation of allowing unlocking, the unlocking position 80 of the door lock 10 is released, and the knob of the door lock 10 can be rotated from the request position 70 to the unlocking position 80 for corresponding operation.

FIG. 8 is a logic flow diagram of a control method of the emergency unlocking device for the vehicle door provided by the invention. Fig. 8 is mainly used for illustrating a control flow of the emergency unlocking method for the vehicle door according to the present invention.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In some embodiments of the present invention, as shown in fig. 1 to 7, the present invention provides a vehicle door emergency unlocking apparatus, including: door lock 10, door controller 20 and controller 30; the door lock 10 includes a lock bit 60 for locking the door lock 10, a request bit 70 for transmitting an unlock request instruction to the doorkeeper 20, and an unlock bit 80 for unlocking the door lock 10; the gate controller 20 is used for sending an unlocking request signal to the controller 30 and receiving a signal sent by the controller 30; the controller 30 is configured to obtain an unlocking feedback signal based on the unlocking request signal and perform a determination.

In detail, the invention provides a vehicle door emergency unlocking device, which is used for solving the defects that the vehicle door is opened due to misoperation of passengers and operation of a vehicle door emergency locking device by a lawless person in the prior art of a railway vehicle.

In some possible embodiments of the invention, the door lock 10 comprises: a rotary switch 11, a trigger part 12, a rotating shaft 13 and a limit switch 14; the rotary switch 11 drives the trigger part 12 to trigger the limit switch 14 through the rotating shaft 13; the limit switch 14 is connected with a gate controller 20; when the rotary switch 11 hovers to the request position 70, the trigger part 12 triggers the limit switch 14 to send an unlocking request instruction to the door controller 20; when the rotary switch 11 hovers to the unlocking position 80, the trigger part 12 triggers the limit switch 14 to send an unlocking start instruction to the door controller 20.

Specifically, the present embodiment provides an implementation manner of a door lock 10, so as to solve the defect that a passenger can rotate a door emergency unlocking device to an unlocking position 80 by himself in the prior art, and by setting the request position 70 and the unlocking position 80, the door unlocking request is obtained, and whether unlocking is permitted or not can be performed according to actual conditions.

In some possible embodiments of the invention, the door lock 10 further comprises: a housing 15, the rotary switch 11 is arranged at one side of the housing 15; the trigger 12 and the limit switch 14 are provided on the other side of the housing 15 with respect to the rotary switch 11.

Specifically, the present embodiment provides another embodiment of the door lock 10, in which the housing 15 is provided to integrate the door emergency unlocking device, the trigger 12 and the limit switch 14 are provided on the other side of the relative rotation switch 11, and the trigger 12 and the rotation switch 11 are connected through the rotation shaft 13.

In some possible embodiments of the invention, the housing 15 is provided with a recess 151, and the rotary switch 11 is provided in the recess 151.

Specifically, the present embodiment provides another embodiment of the door lock 10, and the groove 151 is provided on the housing 15, so that the rotary switch 11 is accommodated, and the problem that the rotary switch 11 is located outside the housing 15 and causes scratch is avoided.

In some possible embodiments of the invention, the door lock 10 further comprises: a first latch hook 16, a second latch hook 17, and a locking mechanism 18; wherein, the first latch hook 16 is connected with the rotary switch 11 through the rotating shaft 13; the second locking hook 17 is connected with the locking mechanism 18; a locking mechanism 18 is connected to the housing 15 for engaging the first locking hook 16 with the second locking hook 17.

Specifically, the present embodiment provides another embodiment of the door lock 10, and the first locking hook 16, the second locking hook 17 and the locking mechanism 18 are arranged to lock and unlock the emergency unlocking device of the vehicle door.

In one application scenario, the locking mechanism 18 is an electromagnet, and the first locking hook 16 and the second locking hook 17 are locked and unlocked by being powered on and off.

In some possible embodiments of the invention, the door lock 10 further comprises: the first support plate 152 and the second support plate 153, wherein the first support plate 152 and the second support plate 153 are connected to form an L-shaped support structure; wherein the first supporting plate 152 is connected with the housing 15; the second support plate 153 is disposed parallel to the axial direction of the rotating shaft 13; the locking mechanism 18 is connected to the second support plate 153, and drives the second locking hook 17 to engage with the first locking hook 16 along the radial direction of the rotating shaft 13.

Specifically, the present embodiment provides another embodiment of the door lock 10, which provides a mounting plane for the locking mechanism 18 by providing the first support plate 152 and the second support plate 153, and also makes the arrangement of the emergency unlocking device for the vehicle door more reasonable.

In some possible embodiments of the invention, the door lock 10 further comprises: a first stopper plate 154, a second stopper plate 155, and a third stopper plate 156; the first stopper plate 154 is connected to the housing 15; the second limit plate 155 is connected with the first limit plate 154 and connected towards the side far away from the shell 15; the third stopper plate 156 is connected to the second stopper plate 155 and arranged in parallel with the first stopper plate 154; wherein the first, second and

third retainer plates

154, 155 and 156 enclose an accommodating cavity that accommodates the first latch hook 16 and the trigger 12.

Specifically, the present embodiment provides another embodiment of the door lock 10, which provides an installation position for the limit switch 14 and an application manner for the cooperation of the trigger 12 and the limit switch 14 by providing the first limit plate 154, the second limit plate 155 and the third limit plate 156.

In some possible embodiments of the invention, the limit switch 14 comprises: a first limit 141 for transmitting an unlock request command and a second limit 142 for transmitting an unlock start command.

Specifically, the present embodiment provides an implementation of the limit switch 14, which realizes the transmission of the unlocking request command and the unlocking start command to the door controller 20 by setting the first limit 141 and the second limit 142.

In some possible embodiments of the invention, the trigger 12 is a cam; wherein, trigger part 12 includes: first wheel 121 and second wheel 122: the first wheel body 121 is used for triggering the first limit 141; the second wheel 122 is used for triggering the second limit 142.

Specifically, the present embodiment provides an embodiment of the triggering portion 12, which implements the engagement with the first limit 141 and the second limit 142 by arranging the first wheel 121 and the second wheel 122, and implements the transmission of both the unlocking request signal and the unlocking start signal.

In some embodiments of the present invention, as shown in fig. 1 to 8, the present invention provides a control method of the above vehicle door emergency unlocking device, including:

the door controller 20 acquires an unlocking request instruction that the door lock 10 is located at the request position 70, and sends an unlocking request signal to the controller 30;

the controller 30 continuously acquires an unlocking feedback signal based on the unlocking request signal and performs judgment;

in response to the unlocking feedback of the unlocking feedback signal being no, the controller 30 sends an unlocking prohibition signal to the door controller 20, the door controller 20 maintains the locking state of the door lock 10 based on the unlocking prohibition signal, and adjusts the door lock 10 to the locking position 60;

the unlock feedback in response to the unlock feedback signal is yes, the controller 30 generates a control decision based on the rail vehicle operating parameters and executes the control decision.

In detail, the invention also provides a control method of the vehicle door emergency unlocking device, which is used for solving the defects that the vehicle door is opened by misoperation of passengers and operation of the vehicle door emergency unlocking device by lawless persons in the prior art, realizing the function of controlling whether the passengers are allowed to unlock the vehicle door in an emergency or not by a cab, and avoiding potential safety hazards caused by misoperation of the passengers and operation of the vehicle door emergency unlocking device by lawless persons to open the vehicle door.

In some possible embodiments of the present invention, the step of obtaining, by the gate controller 20, an unlocking request command of the door lock 10 at the request bit 70 and sending an unlocking request signal to the controller 30 specifically includes:

in response to the acquired unlocking request signal, the gate controller 20 acquires the state parameters of the door lock 10 and makes a judgment;

in response to the door lock 10 being in the locked state, the door controller 20 sends an unlocking request signal to the controller 30;

in response to the door lock 10 being in the unlocked state, the door controller 20 sends an unlocking request signal to the controller 30 after adjusting the door lock 10 to the locked state.

Specifically, the present embodiment provides an implementation manner for determining the state parameters of the door lock 10 according to the acquired unlocking request signal, and by acquiring the state of the door lock 10 in advance, the problem that the door is opened due to the misoperation of the door by the passenger is avoided.

It should be noted that when the door lock 10 is in the request position 70, it is described that the vehicle door is operated at this time, and then the state of the door lock 10 is determined, so as to avoid that the door lock 10 is adjusted to the unlock position 80 while the door lock 10 is in the unlock state, and the corresponding potential safety hazard is brought about.

In some possible embodiments of the present invention, if the unlocking feedback in response to the unlocking feedback signal is yes, the step of generating a control decision based on the operation parameter of the rail vehicle by the controller 30 and executing the control decision specifically includes:

in response to the obtained unlocking feedback being yes, the controller 30 obtains a speed parameter of the rail vehicle as an operation parameter and performs judgment;

in response to the unlocking feedback of the speed parameter feedback being no, the controller 30 sends an unlocking prohibition signal to the doorcontroller 20, the doorcontroller 20 maintains the locking state of the door lock 10 based on the unlocking prohibition signal, and adjusts the door lock 10 to the locking position 60;

the unlock feedback in response to the speed parameter feedback is yes, and the controller 30 acquires and judges the position parameter of the rail vehicle.

In particular, the present embodiment provides an implementation of obtaining and determining a speed parameter of a rail vehicle based on feedback of a status parameter of the door lock 10, after receiving the feedback of allowing unlocking, the speed parameter of the rail vehicle is acquired and judged, the arrangement mainly highlights the dominant position of the cab 40 in the whole operation and control, and when the door lock 10 is in the request position 70, the driver's cab 40 is preferentially requested to make a judgment, so as to avoid the problem of communication resource waste caused by the situation that the door lock 10 is in the request position 70 due to misoperation of passengers and the like, for example, if the door lock 10 is in the request position 70, the acquisition of the speed parameter is preferentially triggered, this may cause the system to make a corresponding determination each time the door lock 10 is mishandled to the request bit 70, and corresponding resources are occupied, and the situation is frequently caused by misoperation or malicious operation of passengers.

In some possible embodiments of the present invention, if the unlocking feedback in response to the speed parameter feedback is yes, the step of acquiring and determining the position parameter of the rail vehicle by the controller 30 specifically includes:

in response to the unlocking feedback of the position parameter feedback being no, the controller 30 sends an unlocking prohibition signal to the doorcontroller 20, the doorcontroller 20 maintains the locked state of the door lock 10 based on the unlocking prohibition signal, and adjusts the door lock 10 to the locked position 60;

the unlocking feedback in response to the position parameter feedback is yes, the controller 30 sends a request pass signal to the doorkeeper 20, and the doorkeeper 20 opens the unlocking position 80 of the door lock 10 based on the request pass signal and maintains the locking state of the door lock 10.

Specifically, the embodiment provides an implementation manner of obtaining and judging the position parameter of the rail vehicle according to the feedback of the speed parameter of the rail vehicle, after the running speed of the rail vehicle is judged, the relative position of the rail vehicle in the running section is judged, and then whether the unlocking bit 80 of the door lock 10 can be unlocked or not is known.

In some possible embodiments of the present invention, after the controller 30 generates a control decision based on the operation parameter of the rail vehicle and executes the control decision, the unlocking feedback in response to the unlocking feedback signal is yes, the method further includes:

in response to the door lock 10 not being adjusted to the unlock position 80 within the preset execution time, the doorcontroller 20 adjusts the door lock 10 to the lock position 60 and maintains the locked state of the door lock 10.

Specifically, the present embodiment provides an implementation manner of corresponding operations after executing a control decision, which monitors the execution time after the control decision is generated, and ensures that the door lock 10 is restored to the working state after the request and the reasonable operation time are met.

In one application scenario, when the passenger repeatedly turns and restores the handle in a short time, the controller 30 recognizes that an unlocking request is issued upon receiving the first request signal, and does not process the unlocking request in a certain time period thereafter.

In some possible embodiments of the present invention, the step of continuously acquiring and determining the unlocking feedback signal based on the unlocking request signal by the controller 30 specifically includes:

in response to the unlock feedback of the unlock feedback signal being empty within the preset feedback time, the controller 30 generates a control decision based on the rail vehicle operating parameters and executes the control decision.

In some possible embodiments of the present invention, the predetermined feedback time is between 30 seconds and 120 seconds.

In some possible embodiments of the invention, the method further comprises:

in response to a loss of power to controller 30 and/or door operator 20, unlock position 80 of door lock 10 is opened and door lock 10 continues to remain locked.

Specifically, the present embodiment provides an implementation mode of power loss of the controller 30 and/or the door controller 20, and when power loss occurs to the controller 30 and/or the door controller 20, in order to ensure smooth opening of the doors of the rail vehicle, the unlocking position 80 of the door lock 10 is opened, so as to facilitate escape of passengers in an emergency.

In some embodiments of the invention, the present invention provides a rail vehicle, which has the above-mentioned door emergency unlocking device, or when performing door emergency unlocking, adopts the above-mentioned control method of the door emergency unlocking device.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. An emergency door unlocking device, comprising: the system comprises a door lock, a door controller and a controller;

2. The vehicle door emergency unlocking apparatus as claimed in claim 1, wherein the door lock includes: the rotary switch, the trigger part, the rotating shaft and the limit switch;

the limit switch is connected with the gate controller;

3. The vehicle door emergency unlocking apparatus as claimed in claim 2, wherein the door lock further comprises: the rotary switch is arranged on one side of the shell; the trigger part and the limit switch are arranged on the shell opposite to the other side of the rotary switch.

4. A vehicle door emergency release apparatus as claimed in claim 3, wherein said housing is provided with a recess, and said rotary switch is disposed in said recess.

5. The vehicle door emergency unlocking apparatus as claimed in claim 3, wherein the door lock further comprises: the locking mechanism comprises a first locking hook, a second locking hook and a locking mechanism;

the second lock hook is connected with the locking mechanism;

6. The vehicle door emergency unlocking apparatus as claimed in claim 5, wherein said door lock further comprises: the support structure comprises a first support plate and a second support plate, wherein the first support plate and the second support plate are connected to form an L-shaped support structure;

wherein the first support plate is connected with the shell;

7. The vehicle door emergency unlocking apparatus as claimed in claim 5, wherein said door lock further comprises: the device comprises a first limiting plate, a second limiting plate and a third limiting plate;

the first limiting plate is connected with the shell;

8. The emergency door unlocking device as claimed in claim 7, wherein the limit switch comprises: the unlocking device comprises a first limit used for sending an unlocking request instruction and a second limit used for sending an unlocking starting instruction.

9. The vehicle door emergency unlocking device according to claim 8, wherein the triggering portion is a cam;

wherein the trigger part includes: first wheel and second wheel:

the first wheel body is used for triggering the first limit;

the second wheel body is used for triggering the second limiting position.

10. A control method of the vehicle door emergency unlocking apparatus according to any one of claims 1 to 9, comprising:

11. The method as claimed in claim 10, wherein the step of the door controller obtaining an unlocking request command that the door lock is in a request position and sending an unlocking request signal to the controller includes:

12. The method as claimed in claim 11, wherein the step of generating the control decision based on the operation parameter of the rail vehicle and executing the control decision by the controller in response to the unlocking feedback signal is as follows:

13. The method as claimed in claim 12, wherein the step of obtaining and determining the position parameter of the rail vehicle by the controller in response to the unlocking feedback of the speed parameter feedback is yes, and specifically comprises:

14. The method as claimed in claim 13, wherein the step of the controller generating a control decision based on the operation parameters of the rail vehicle and executing the control decision is followed by the step of the controller generating an unlocking feedback signal in response to the unlocking feedback signal as yes, and further comprising:

15. The method for controlling the emergency unlocking device for the vehicle door according to any one of claims 10 to 14, wherein the step of continuously acquiring the unlocking feedback signal based on the unlocking request signal and performing the judgment by the controller further includes:

16. The method for controlling an emergency unlocking device of a vehicle door according to any one of claims 10 to 14, further comprising:

17. A rail vehicle having a door emergency unlocking apparatus according to any one of claims 1 to 9, or a control method of a door emergency unlocking apparatus according to any one of claims 10 to 16 when performing emergency unlocking of a door.