CN112141166A - Motor train unit safety loop bypass system - Google Patents
Motor train unit safety loop bypass system Download PDFInfo
- Publication number
- CN112141166A CN112141166A CN202011013653.5A CN202011013653A CN112141166A CN 112141166 A CN112141166 A CN 112141166A CN 202011013653 A CN202011013653 A CN 202011013653A CN 112141166 A CN112141166 A CN 112141166A
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- safety loop
- loop
- contact
- safety
- bypass switch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/0081—On-board diagnosis or maintenance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/124—Brakes for railway vehicles coming into operation in case of accident, derailment or damage of rolling stock or superstructure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A safety loop bypass system of a motor train unit relates to the technical field of motor train unit safety, and aims to solve the problems that after an existing safety loop is abnormally powered off, a fault point cannot be quickly found, the motor train unit is caused to stay in an operating line for a long time, the operating order is seriously influenced, and the like; one end of the first bypass switch is connected with a warning device in a safety loop control circuit of the master control vehicle, and the other end of the first bypass switch is connected with one end of a control contact point of the safety loop, wherein ATP is connected in series in the safety loop control circuit of the master control vehicle; one end of the second bypass switch is connected with the other end of a control contact of the ATP series connection in the safety loop control circuit of the master control vehicle; by closing the first bypass switch and/or the second bypass switch, the emergency closing of the safety loop in case of failure is realized, and the system avoids unnecessary loss of passengers caused by the late train.
Description
Technical Field
The invention relates to the technical field of motor train unit safety, in particular to a motor train unit safety loop bypass system.
Background
In order to ensure the application safety of the motor train unit, the motor train unit is provided with a safety loop capable of triggering emergency braking, the safety loop is powered off under an emergency condition, the emergency braking is triggered quickly, and the motor train unit can be stopped in the shortest time to ensure the safety. When the motor train unit operates, the relays of all nodes in the safety loop and the line connection part are in fault, the safety loop is possibly abnormally powered off, emergency braking of the motor train unit is triggered, and normal relief cannot be achieved, so that the motor train unit operates at a later point.
The existing motor train unit safety loop has the defects that the electric elements and the wires penetrate through the whole train, the number of nodes is large, and after the safety loop is abnormally powered off, a fault point cannot be quickly found, so that the motor train unit is detained in an operating line for a long time, and the operating order is seriously influenced.
The invention aims to quickly repair the fault through the safety loop bypass system under the condition, ensure the normal operation of a train set, solve the problem that the motor train unit causes serious operation late under the condition of abnormal power failure of the safety loop, and play an important role in improving the social order and the operation performance of the motor train unit.
Disclosure of Invention
The invention provides a safety loop bypass system and a control method for a motor train unit, aiming at solving the problems that after the existing safety loop is abnormally powered off, a fault point cannot be quickly found, the motor train unit is retained in an operating line for a long time, the operating order is seriously influenced and the like.
A motor train unit safety loop bypass system comprises a main control vehicle safety loop control circuit and a bypass system, wherein the bypass system comprises a first bypass switch and a second bypass switch;
one end of the first bypass switch is connected with a warning device in a safety loop control circuit of the master control vehicle, and the other end of the first bypass switch is connected with one end of a control contact point of the safety loop, wherein ATP is connected in series in the safety loop control circuit of the master control vehicle; one end of the second bypass switch is connected with the other end of a control contact of the ATP series connection in the safety loop control circuit of the master control vehicle; by closing the first bypass switch and/or the second bypass switch, emergency closing during the failure of the safety loop is realized, so that the emergency brake of the vehicle can be relieved and the vehicle can be used continuously.
The invention has the beneficial effects that: the safety loop bypass system is a system capable of instantly bypassing the safety loop, and can quickly establish the safety loop in a mode of bypassing the safety loop fault node after the safety loop of the motor train unit is abnormally disconnected due to equipment fault, so that the usability of the motor train unit is improved, the normal operation of a motor train unit is ensured, and unnecessary loss of passengers caused by late train is avoided.
The motor train unit is designed according to the principle of fault guiding safety in the whole motor train unit, a safety loop is arranged for guaranteeing the driving safety of a train, the safety loop can rapidly trigger emergency braking to stop after being disconnected to ensure the safety of passengers, and due to the fact that more equipment related to the driving safety exist, the equipment can be disconnected with the safety loop, and the safety loop is possibly abnormally disconnected due to equipment faults when the stability of the driving equipment is considered, so that the stopping late point of the train is finally caused, and unnecessary loss is caused to the passengers on the trip due to the late point of the train.
Drawings
FIG. 1 is a schematic diagram of a safety loop bypass system of a motor train unit applied to a tail-car power supply safety loop;
FIG. 2 is a schematic diagram of a safety loop bypass system of a motor train unit applied to a power supply safety loop of a primary train.
In the figure: 1. a safety loop relay; 2. a driver alert device; 3. a network control contact for controlling the security loop; 4. the brake handle triggers a contact of the loop which is powered off; 5. an emergency brake button; 6. the ATP is connected in series with a control contact in a safety loop; 7. the parking brake monitoring loop is connected in series with a contact in the safety loop; 8. monitoring contacts connected in series in a safety loop by lateral acceleration; 9. and (4) a power supply.
Detailed Description
In a first embodiment, the embodiment is described with reference to fig. 1 and fig. 2, and a motor train unit safety loop bypass system includes a main control vehicle safety loop control circuit a and a bypass system B; the bypass system B comprises a first bypass switch 10, a second bypass switch 11, a first network IO module, a second network IO module and a priority power supply;
in the embodiment, the safety loop control circuit A of the master control vehicle comprises a safety loop relay 1, a driver alert device 2, a network control contact 3 for controlling a safety loop, a contact 4 for triggering the loop to lose power by a brake handle, an emergency brake button 5, a control contact 6 for connecting ATP in series in the safety loop, a contact 7 for connecting a parking brake monitoring loop in series in the safety loop, a contact 8 for monitoring transverse acceleration in series in the safety loop and a power supply 9;
one end of the first bypass switch 10 is connected with the alert device 2, and the other end is connected with one end of a control contact 6 of which the ATP is connected in series in the safety loop; one end of the second bypass switch 11 is connected with the other end of the control contact 6 of the ATP series connection in the safety loop; by closing the first bypass switch 10 and/or the second bypass switch 11, an emergency closing in case of a safety loop failure is realized, so that the vehicle can relieve emergency braking and continue to be used.
The other end of the second bypass switch 11 is connected with a priority power supply, and the first network IO module and the second network IO module are respectively connected with the first bypass switch 10 and the second bypass switch 11.
The safety loop relay 1 is connected with a driver alert device 2, the driver alert device 2 is connected with one end of a network control contact 3 for controlling a safety loop, the other end of the network control contact 3 for controlling the safety loop is connected with one end of a contact 4 for triggering a loop to lose power, the other end of the contact 4 for triggering the loop to lose power is connected with an emergency brake button 5, the emergency brake button 5 is connected with a control contact 6 for connecting ATP in series in the safety loop, and the control contact 6 for connecting ATP in series in the safety loop is connected with a contact 7 in the safety loop, a contact 8 for monitoring transverse acceleration in series in the safety loop and a power supply 9 in other vehicle-saving safety loop control circuits.
In the embodiment, the safety loop relay 1 executes an emergency braking function after the safety loop is powered off; the driver alert device 2 triggers the safety loop to lose power after the driver does not operate for a long time and judges that the vehicle group is not monitored by people; the network control contact 3 for controlling the safety loop can be used for a network system to self-define and trigger the condition of power loss of the safety loop; the brake handle triggers the contact 4 of the safety loop which is powered off to be used for the brake handle to execute the operation of breaking the safety loop; the emergency brake button 5 is used for the driver to execute emergency braking through the button; the control contact 6 of the ATP series-connected in the safety loop is used for emergency braking of a railway signal department through remote control of the motor train unit; the parking brake monitoring loop is connected with a contact 7 in the safety loop in series, and the contact is used for triggering the safety loop to lose power when the parking brake is abnormally applied; a contact 8 which is used for monitoring the transverse acceleration and is connected in series in the safety loop is used for alarming the transverse acceleration and controlling the safety loop to lose power to trigger emergency braking; the power supply 9 provides dc power for the safety loop.
In the safety loop bypass system described in this embodiment, the safety loop is divided into two parts for bypassing, in order to give control right to the ATP device and ensure signal control safety of the motor train unit, and a control contact point where the ATP device is connected in series in the safety loop is provided between the two parts of the safety loop, for example, an ATP fault is isolated only by ATP.
In this embodiment, the safety loop bypass system is internally provided with a first network IO module and a second network IO module for outputting network feedback signals, a network signal feedback can be provided simultaneously during switching action through a multi-contact switch, a high-level signal is transmitted to the network system of the motor train unit, corresponding programs are programmed in the network system to make corresponding logic rules, a driver is prompted by a popup screen to give information such as that the first bypass switch of the safety loop has completed a bypass function, the driver is informed to operate according to relevant regulations (including information such as speed limit and other methods of emergency braking), and corresponding network control functions such as automatic speed limit can be made.
In the embodiment, 3 nodes are taken in the safety loop of the master control car to respectively lead out wires, and 3 wires are used in total, wherein 1 wire is a connecting wire of a first bypass switch and the alertness device 2, 1 wire is a connecting wire of a control contact of the first bypass switch and the ATP which are connected in series in the safety loop, and 1 wire is a connecting wire of a control contact of a second bypass switch and the ATP which are connected in series in the safety loop; the 3 leads are connected in a safety loop bypass system, two bypass switches are arranged in the safety loop bypass system, and the two parts of the safety loop can be bypassed respectively by closing the switches, so that the purpose of quickly repairing the safety loop is achieved.
Under the condition that the safety loop has an abnormal power loss fault, two switches in the safety loop bypass system are closed respectively or simultaneously, the effect of a fault part circuit in the bypass safety loop is achieved, the safety loop is repaired quickly, meanwhile, the safety loop after bypassing still retains the ATP function of railway signal centralized control, and the safety of the motor train unit running on line can be guaranteed.
The safety loop bypass system is suitable for safety loops configured by different motor train units. The safety loop of the motor train unit is divided into two power supply modes, namely a safety loop for supplying power to a tail train and a safety loop for supplying power to a head train. As shown in fig. 1, the safety loop for supplying power to the tail car is provided with a power supply 9 arranged on the tail car and a safety loop relay 1 arranged on the head car. The schematic diagram of the safety loop for supplying power to the head car is shown in fig. 2, the power supply is arranged on the head car, the safety loop relay is arranged on the tail car, and the same function can be realized only by changing the external wire connection of the safety loop bypass system.
In combination with the safety loop bypass system in fig. 1, taking a safety loop powered by a tail car as an example, when an electrical element or a cable connection point where an ATP is connected in series between control contacts 6 (here, an upper cable plug of 6 in fig. 1) in the safety loop is failed to cause abnormal power loss of the safety loop, a fault circuit bypass function can be realized by closing a first bypass switch in the figure, wherein the control contacts 3 of the safety loop are controlled by a network control contact 1, a brake handle trigger loop power loss contact 4, an emergency brake button 5 and the ATP are connected in series;
when the safety loop is abnormally powered off due to the fact that the contact 7 in the safety loop, the contact 8 in the safety loop and the power supply 9 are connected in series in the transverse acceleration monitoring mode, and the electric element or cable connection part fails, the fault circuit can be bypassed by closing the second bypass switch.
When the safety loop is abnormally de-energized due to a fault occurring at an electrical element or cable connection in fig. 1, which means that ATP in fig. 1 is connected in series between the control contact 6 (lower cable plug) in the safety loop to the power supply 9, a fault circuit bypass function can be realized by closing the second bypass switch.
In the embodiment, when the emergency braking parking is triggered when the power failure of the safety loop occurs during the running of the motor train unit, if the vehicle diagnosis system does not prompt any information except for displaying the power failure of the safety loop, a driver judges that the power failure of the safety loop is caused by self faults through a checking process, the driver can close the first bypass switch or the second bypass switch in sequence at the moment to determine that the safety loop is closed again, and the motor train unit can continue to run according to relevant railway regulations after the emergency braking is relieved.
Claims (5)
1. The utility model provides a EMUs safety loop bypass system, includes main control car safety loop control circuit (A) and bypass system (B), characterized by: the bypass system (B) further comprises a first bypass switch (10) and a second bypass switch (11);
one end of the first bypass switch (10) is connected with a warning device (2) in a safety loop control circuit of the master control vehicle, and the other end of the first bypass switch is connected with one end of a control contact (6) of the safety loop, wherein ATP is connected in series in the safety loop control circuit of the master control vehicle;
one end of the second bypass switch (11) is connected with the other end of a control contact (6) of the safety loop, wherein ATP is connected in series in the safety loop control circuit of the master control vehicle; by closing the first bypass switch and/or the second bypass switch, emergency closing during the failure of the safety loop is realized, so that the emergency brake of the vehicle can be relieved and the vehicle can be used continuously.
2. The motor train unit safety loop bypass system according to claim 1, wherein: the power supply system is characterized by further comprising a first network IO module, a second network IO module and a priority power supply, the other end of the second bypass switch (11) is connected with the priority power supply, and the first network IO module and the second network IO module are connected with the first bypass switch (10) and the second bypass switch (11) respectively.
3. The motor train unit safety loop bypass system according to claim 1, wherein: the main control car safety loop control circuit (A) comprises a safety loop relay (1), a driver alert device (2), a network control contact (3) for controlling a safety loop, a brake handle trigger loop power-off contact (4), an emergency brake button (5), an ATP control contact (6) connected in series in the safety loop, a parking brake monitoring loop contact (7) connected in series in the safety loop, a transverse acceleration monitoring contact (8) connected in series in the safety loop and a power supply (9);
the safety loop relay (1) is connected with a driver alert device (2), the driver alert device (2) is connected with one end of a network control contact (3) for controlling a safety loop, the other end of the network control contact (3) for controlling the safety loop is connected with one end of a contact (4) for triggering the loop to lose power, the other end of the contact (4) for triggering the loop to lose power is connected with an emergency brake button (5), the emergency brake button (5) is connected with a control contact (6) of ATP series connection in the safety loop, and the control contact (6) of ATP series connection in the safety loop is connected with a contact (7) of safety loop in other car-saving safety loop control circuits, a contact (8) of transverse acceleration monitoring series connection in the safety loop and a power supply (9).
4. The motor train unit safety loop bypass system according to claim 1, wherein: the safety loop of the motor train unit is divided into a safety loop for tail car power supply and a safety loop for head car power supply.
5. The motor train unit safety loop bypass system according to claim 4, wherein: when a safety loop for supplying power to the tail car is adopted, the power supply (9) is arranged on the tail car, and the safety loop relay (1) is arranged on the head car;
when a safety loop for supplying power to the head car is adopted, a power supply source (9) is arranged on the head car and is connected with a warning device (2), and a safety loop relay (1) is arranged on the tail car and is connected with a contact (8) which is connected with a transverse acceleration monitor in series in the safety loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013653.5A CN112141166B (en) | 2020-09-24 | 2020-09-24 | Motor train unit safety loop bypass system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011013653.5A CN112141166B (en) | 2020-09-24 | 2020-09-24 | Motor train unit safety loop bypass system |
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| CN112141166A true CN112141166A (en) | 2020-12-29 |
| CN112141166B CN112141166B (en) | 2021-11-12 |
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| CN202011013653.5A Active CN112141166B (en) | 2020-09-24 | 2020-09-24 | Motor train unit safety loop bypass system |
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Cited By (2)
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| CN112918510A (en) * | 2021-03-23 | 2021-06-08 | 中车青岛四方机车车辆股份有限公司 | Train control circuit, train and train control method |
| CN115416724A (en) * | 2022-11-03 | 2022-12-02 | 中车工业研究院(青岛)有限公司 | EMUs barrier detects and control circuit, system |
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| CN115416724A (en) * | 2022-11-03 | 2022-12-02 | 中车工业研究院(青岛)有限公司 | EMUs barrier detects and control circuit, system |
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| CN112141166B (en) | 2021-11-12 |
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