Train working mode switching control system and control method thereof

Abstract

The invention discloses a train working mode switching control system, which is characterized in that two physical switching switches, namely a switching mode selection switch and a direction selection switch, are arranged on each of a first section and a tail section of a train, and each switching mode selection switch is provided with three gear positions, switching instruction signals for the vehicle to enter the automatic mode, the limited manual mode and the full-manual mode are sent to the train ATC; each direction selection switch is provided with three gear positions, and switching instruction signals of manual forward, default 0 and manual backward are sent to the ATC in the limited manual mode.

Description

Technical Field

[0001] The present invention relates to the technical field of train control. Background Art

[0002] Existing APM trains can perform mode switching in full-automatic mode, restricted manual mode, and full-manual mode. For example, in the published document with the publication number CN108128330A, the publication date of June 8, 2018, and the patent name "A processing method for switching the driving mode of a rail transit train", the disclosed method includes: obtaining train status information after the train enters the co-management area, where the co-management area is an overlapping area of different train operation systems; according to the train status information and a preset trigger condition, obtaining a second driving mode corresponding to the operation system to be switched of the first driving mode of the train; if a confirmation action for the second driving mode of the operation system to be switched is received, switching the first driving mode to the second driving mode. The processing method for switching the driving mode of a rail transit train provided by the embodiments of the present invention obtains the second driving mode corresponding to the first driving mode of the train through train status information and a preset trigger condition, realizing seamless switching of the driving mode of the train operation system.

[0003] However, for a multi-car train with a similar method, when the direction is selected at the current end and the driver needs to perform a reverse operation, the driver needs to first switch the current end mode to the full-automatic mode, then walk to the other end to perform mode conversion and then perform traction operation to achieve reversing. This design is not conducive to the driver of a multi-car train to control the train, and the mode selection control needs to be optimized. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to implement a control system that can more conveniently control the manual operation of a train and ensure the safety of control.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A train working mode switching control system. Two physical switching switches are provided on both the first car and the last car of the train, namely a switching mode selection switch and a direction selection switch. The switching mode selection switches each have three gear positions, respectively sending switching instruction signals for the vehicle to enter the automatic mode, restricted manual mode, and full-manual mode to the train ATC; the direction selection switches each have three gear positions, respectively sending switching instruction signals for manual forward, default 0, and manual backward to the ATC in the restricted manual mode.

[0006] The three gear positions of the switching mode selection switch are AUTO, Manual ATP, and FULL, corresponding to three operation modes of the vehicle automatic mode, restricted manual mode, and full-manual mode respectively.

[0007] The three gears of the direction selection switch are RM-F, RM-R, and the default invalid position 0, corresponding to the three modes of manual forward, manual backward, and default 0 in the restricted manual mode respectively.

[0008] The switching mode selection switches are all equipped with physical key locking structures.

[0009] The physical key locking structures on the first car and the last car both output status signals to the ATC, which are used to control that only the first unlocked physical key locking structure is in an effective state.

[0010] The control method based on the train working mode switching control system:

[0011] When the switching mode selection switches of the first car and the last car are both in the AUTO position, the vehicle is in the full-automatic mode;

[0012] When the switching mode selection switches of the first car or the last car are both in the FULL position, the vehicle ATC will receive the automatic / manual VATC digital input, and the vehicle is in the full-manual mode

[0013] When the switching mode selection switches of the first car or the last car are both in the Manual ATP position, the vehicle ATC will receive the restricted manual VATC digital input, and the vehicle is in the restricted manual mode

[0014] When the vehicle is in the restricted manual mode, if the direction selection switch of the first car is placed in RM-F, the train will move forward in front of the first car when the traction handle is operated;

[0015] When the vehicle is in the restricted manual mode, if the direction selection switch of the first car is placed in RM-R, the train will move backward behind the first car when the traction handle is operated.

[0016] When the vehicle is in the restricted manual mode, if the direction selection switch of the last car is placed in RM-F, the train will move forward in front of the last car when the traction handle is operated;

[0017] When the vehicle is in the restricted manual mode, if the direction selection switch of the last car is placed in RM-R, the train will move backward behind the last car when the traction handle is operated.

[0018] The switching mode selection switch of the first car can only be activated when the physical key locking structure in the first car is unlocked, and the switching mode selection switch of the last car can only be activated when the physical key locking structure in the last car is unlocked.

[0019] When the physical key locking structure of the first car is unlocked, if the physical key locking structure of the last car has been unlocked first, the physical key locking structure of the first car can only be unlocked and take effect after the physical key locking structure of the last car is locked again;

[0020] When the physical key locking structure of the last car is unlocked, if the physical key locking structure of the first car has been unlocked first, the physical key locking structure of the last car can only be unlocked and take effect after the physical key locking structure of the first car.

[0021] When the mode selection switch is in the Manual ATP position, the vehicle enters the restricted manual driving mode. In this mode, the train safety is the responsibility of the ATC system, the train is manually driven by the driver, and the train speed limit is determined by the ATC system.

[0022] When the mode selection switch is in the FULL position, the vehicle enters the full manual driving mode. The train has no ATC protection and is completely manually controlled by the driver. The speed limit of the vehicle in this mode is 8 km / h.

[0023] The advantage of the present invention is that on the basis of the original APM mode selection function, a forward restricted manual mode and a backward restricted manual mode are newly added, so that in the restricted manual mode, multi - formation vehicles can operate the vehicle forward and backward at the current end. Brief Description of the Drawings

[0024] The following briefly describes the content expressed in each drawing in the specification of the present invention:

[0025] Figure 1 It is the circuit logic diagram of the train working mode switching control system. Detailed Embodiments

[0026] The following, with reference to the drawings, through the description of the embodiments, the detailed embodiments of the present invention, such as the shapes, structures of the various components involved, the mutual positions and connection relationships between the various parts, the functions and working principles of each part, the manufacturing process and the operation and use methods, etc., are further described in detail to help those skilled in the art have a more complete, accurate and in - depth understanding of the inventive concept and technical solution of the present invention.

[0027] Mode selection control principle: By operating the mode selection switch and the direction selection switch, the ATC receives different digital signals provided by the mode switch interface circuit to perform vehicle mode switching.

[0028] The mode switch interface circuit provides the following signals to the VATC:

[0029] a) Automatic / manual mode input signal

[0030] b) RM_A and RM_B input signals

[0031] c) RMF_A, RMF_B, RMR_A and RMR_B input signals

[0032] Design of the mode selection switch and the direction selection switch:

[0033] 1. Mode Select Switch

[0034] The mode select switch has three positions: AUTO, Manual ATP, and FULL, corresponding to three operating modes of the vehicle: automatic, restricted manual mode, and full manual mode. The mode definitions are as follows:

[0035] Automatic Mode: When the mode select switch is in the AUTO position, the vehicle enters the automatic mode. In the automatic mode, the vehicle operates automatically under the control of the ATC system without manual operation.

[0036] Restricted Manual Mode: When the mode select switch is in the Manual ATP position, the vehicle enters the restricted manual driving mode. In this mode, the train safety is the responsibility of the ATC system, the train is manually driven by the driver, and the train speed limit is determined by the ATC system.

[0037] Full Manual Mode: When the mode select switch is in the FULL position, the vehicle enters the full manual driving mode. In this mode, the train has no ATC protection and is completely manually controlled by the driver. The speed limit of the vehicle in this mode is 8 km / h.

[0038] The mode select switch has the following characteristics:

[0039] a. The default position is the AUTO position;

[0040] b. The driver needs to insert the key to operate the manual activation switch;

[0041] c. When the manual activation switch at one end has a key inserted and this switch is rotated away from the AUTO position, the manual activation switch at the other end is locked. The driver can insert the key into the manual activation switch at the other end but cannot operate the switch.

[0042] 4. The key can only be removed when the manual activation switch is in the AUTO position.

[0043] 2. Direction Select Switch

[0044] The direction select switch is set on the manual controller. It can only be operated when the mode select switch is in the Manual ATP Mode position. The direction select switch has three positions: Manual Forward (RM-F), Manual Backward (RM-R), and the default invalid position 0, corresponding to manual forward, manual backward, and default 0 in the restricted manual mode respectively.

[0045] The design circuit diagram of the APM vehicle mode selection is as Figure 1 shown. Abbreviation definitions

[0046] KS1: A1 Car Mode Selection Switch

[0047] KS2: A2 Car Mode Selection Switch

[0048] KS3: A1 Car Direction Selection Switch

[0049] KS4: A2 Car Direction Selection Switch

[0050] RM: Restricted Manual Mode

[0051] RMF: Restricted Manual Mode Forward

[0052] RMR: Restricted Manual Mode Reverse

[0053] The following table defines the combinations of 8 driving modes through the different high and low level signals received by the ATC via the mode selection circuit. Any other combination will be regarded as an unknown mode or a fault.

[0054]

[0055] Remark:

[0056] "1" - High Level Voltage

[0057] "0" - Low Level Voltage

[0058] Taking the APM project at Hong Kong Airport as an example, when the driver operates the mode selection switch, the train will automatically switch to different modes as follows:

[0059] If the mode selection switches of the manual controllers of Car A and Car B are placed in the AUTO position, the vehicle is in the full automatic mode.

[0060] If the mode selection switch of the manual controller of either Car A or Car B is placed in the full manual position, the vehicle ATC will receive the automatic / manual VATC digital input, and the vehicle is in the full manual mode.

[0061] If the mode selection switch of the manual controller of either Car A or Car B is placed in the restricted manual position, the vehicle ATC will receive the restricted manual VATC digital input, and the vehicle is in the restricted manual mode.

[0062] If the mode selection switch of the manual controller of Car A is placed in the restricted manual position and the direction selection switch is placed in the restricted manual forward position, the VATC will receive the RMF_A digital input. At this time, when operating the traction handle for traction, the train will move forward in the direction of Car A.

[0063] If the mode selection switch of the manual controller of Car A is placed in the restricted manual position and the direction selection switch is placed in the restricted manual backward position, VATC will receive the RMR_A digital input. At this time, when the traction handle is operated for traction, the train will reverse in the opposite direction of Car A.

[0064] If the mode selection switch of the manual controller of Car B is placed in the restricted manual position and the direction selection switch is placed in the restricted manual forward position, VATC will receive the RMF_B digital input. At this time, when the traction handle is operated for traction, the train will move forward in the direction of Car B.

[0065] If the mode selection switch of the manual controller of Car B is placed in the restricted manual position and the direction selection switch is placed in the restricted manual backward position, VATC will receive the RMR_B digital input. At this time, when the traction handle is operated for traction, the train will reverse in the opposite direction of Car B.

[0066] The design of the above train mode selection control method and system realizes the following functions:

[0067] 1. The driver can switch the mode through the switch on the manual controller.

[0068] 2. The mode selection has a self-locking function to prevent the driver from misoperating.

[0069] 3. The driver can operate the train to move forward and reverse at the current end.

[0070] On the basis of the original APM mode selection function, the restricted manual mode forward and the restricted manual mode backward are added, so that in the restricted manual mode, multiple formation vehicles can be operated to move forward and backward at the current end.

[0071] The present invention has been described exemplarily in combination with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A train operating mode switching control system, characterized in that: The first car and the last car of the train are each equipped with two physical switching switches, namely the switching mode selection switch and the direction selection switch. The switching mode selection switch is each equipped with three gear positions, which respectively send switching command signals to the train ATC for the vehicle to enter automatic mode, limited manual mode and full manual mode; the direction selection switch is each equipped with three gear positions, which respectively send switching command signals of manual forward, default 0 and manual backward to the ATC in the limited manual mode.

2. The train operating mode switching control system according to claim 1, characterized in that: The three gear positions of the switching mode selection switch are AUTO, Manual ATP, and FULL, which correspond to the three operating modes of the vehicle, namely, automatic mode, limited manual mode, and full manual mode.

3. The train operating mode switching control system according to claim 2 is characterized in that: The three gears of the direction selection switch are RM-F, RM-R, and the default invalid position is 0, which respectively correspond to the three modes of manual forward, manual backward, and default 0 in the limited manual mode.

4. The train operating mode switching control system according to claim 1, 2 or 3, characterized in that: The switching mode selection switches are all equipped with a physical key locking structure.

5. The train operating mode switching control system according to claim 4, characterized in that: The physical key locking structures on the first car and the last car both output status signals to the ATC, which are used to control only the physical key locking structure that is unlocked first to be in a valid state.

6. A control method for a train operating mode switching control system according to any one of claims 1 to 5, characterized in that: When the mode selection switches of the first and last cars are both in the AUTO position, the vehicle is in full automatic mode; When the mode selector switch of the first or last car is in FULL position, the vehicle ATC will receive the automatic / manual VATC digital input, and the vehicle is in full manual mode. When the mode selector switches of the first or last car are both in the Manual ATP position, the vehicle ATC will receive the limited manual VATC digital input and the vehicle is in limited manual mode. When the train is in restricted manual mode, if the direction selector switch of the first car is set to RM-F, the train moves forward in front of the first car when the traction handle is operated; When the vehicle is in restricted manual mode, if the direction selection switch of the first car is set to RM-R, the train will move backward to the rear of the first car when the traction handle is operated. When the train is in restricted manual mode, if the direction selector switch of the last car is set to RM-F, the train moves forward in front of the last car when the traction handle is operated; When the vehicle is in restricted manual mode, if the direction selection switch of the last car is set to RM-R, the train will move backwards to the rear of the last car when the traction handle is operated.

7. The control method according to claim 6, characterized in that: The mode switching selection switch of the first car can only be activated when the physical key locking structure in the first car is unlocked, and the mode switching selection switch of the last car can only be activated when the physical key locking structure in the last car is unlocked.

8. The control method according to claim 7, characterized in that: When the physical key locking structure of the first car is unlocked, if the physical key locking structure of the last car has been unlocked first, the physical key locking structure of the first car can only be unlocked and take effect after the physical key locking structure of the last car is unlocked; When the physical key locking structure of the last car is unlocked, if the physical key locking structure of the first car has been unlocked first, the physical key locking structure of the last car can only be unlocked and take effect after the physical key locking structure of the first car is unlocked.

9. The control method according to claim 6, characterized in that: When the mode selection switch is in the Manual ATP position, the vehicle enters the restricted manual driving mode. In this mode, the ATC system is responsible for the train safety, the train is manually driven by the driver, and the train speed limit is determined by the ATC system; When the mode selection switch is in the FULL position, the vehicle enters full manual driving mode. The train has no ATC protection and is completely manually controlled by the driver. In this mode, the vehicle speed limit is 8km / h.

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