Emergency braking circuit of rail vehicle

Abstract

The present application provides an emergency braking circuit for a rail vehicle, which is a detachable chassis type rail vehicle. The emergency braking circuit includes: a master controller ready relay on the first end car, a master controller ready relay on the second end car, a master controller ready relay under the first end car, a master controller ready relay under the second end car, a car body not separated relay, an emergency braking trigger condition contact, and a no emergency braking relay. The present application establishes a correct emergency braking circuit through the master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the car body not separated relay, the emergency braking trigger condition contact, and the no emergency braking relay, and realizes the emergency braking of the detachable chassis type rail vehicle.

Description

Technical Field

[0001] This application relates to the technical field of rail transit, and particularly to an emergency braking circuit for a rail vehicle. Background Art

[0002] A separable chassis type rail vehicle is a vehicle in which the car body and the chassis can be separated and the chassis can operate independently, and according to different passenger demands, the operation mode of "chassis + personalized car body" can be realized. At present, there is no application of the form in which the car body and the chassis of rail vehicles at home and abroad can be separated. The operator only needs to purchase a certain number of chassis, and on the premise of ensuring the traffic volume, customize personalized car bodies according to the characteristics of its own line to meet the requirements of the typical characteristics and uniqueness of the operator's city.

[0003] In order to ensure safety and reliability, the emergency braking circuit is designed on the principle of "failure to safe". This circuit incorporates various unsafe factors that affect the safe operation of the vehicle, namely various triggering conditions for emergency braking, into the circuit, and can trigger emergency braking through an emergency braking button. To further improve safety and reliability, the triggering conditions and the emergency braking button are incorporated in both the positive and negative poles. Traditional rail vehicles do not have the function of separating the car body from the chassis and the chassis operating independently, so they do not have the function of triggering emergency braking through the emergency braking button of the controller under the vehicle either. Therefore, it is necessary to design an emergency braking circuit scheme for separable chassis type rail vehicles. Summary of the Invention

[0004] In order to perform emergency braking on a separable chassis type rail vehicle, this application provides an emergency braking circuit for a rail vehicle.

[0005] The rail vehicle is a separable chassis type rail vehicle, and the emergency braking circuit includes:

[0006] The master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the car body not separated relay, the emergency braking trigger condition contact, and the no emergency braking relay;

[0007] The master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the emergency braking trigger condition contact, and the no emergency braking relay are all in a connected state;

[0008] The car body not separated relay is in a non-connected state.

[0009] Optionally, the one-end vehicle upper controller ready relay, two-end vehicle upper controller ready relay, car body not separated relay, one-end vehicle lower controller ready relay, two-end vehicle lower controller ready relay, emergency braking trigger condition contact, and no emergency braking relay are connected in sequence.

[0010] Optionally, the one-end vehicle upper controller ready relay, two-end vehicle upper controller ready relay, one-end vehicle lower controller ready relay, two-end vehicle lower controller ready relay, car body not separated relay, and emergency braking trigger condition contact each include two sets of contacts;

[0011] The two sets of contacts of the one-end vehicle upper controller ready relay, two-end vehicle upper controller ready relay, one-end vehicle lower controller ready relay, two-end vehicle lower controller ready relay, and emergency braking trigger condition contact are all in a connected state;

[0012] The two sets of contacts of the car body not separated relay are all in a non-connected state.

[0013] Optionally, one set of contacts of the one-end vehicle upper controller ready relay, one set of contacts of the two-end vehicle upper controller ready relay, one set of contacts of the car body not separated relay, one set of contacts of the one-end vehicle lower controller ready relay, one set of contacts of the two-end vehicle lower controller ready relay, one set of contacts of the emergency braking trigger condition contact, and one end of the no emergency braking relay are connected in sequence;

[0014] The other set of contacts of the one-end vehicle upper controller ready relay, the other set of contacts of the two-end vehicle upper controller ready relay, the other set of contacts of the car body not separated relay, the other set of contacts of the one-end vehicle lower controller ready relay, the other set of contacts of the two-end vehicle lower controller ready relay, the other set of contacts of the emergency braking trigger condition contact, and the other end of the no emergency braking relay are connected in sequence.

[0015] Optionally, the emergency braking circuit further includes: one-end vehicle upper controller, two-end vehicle upper controller, one-end vehicle lower controller, two-end vehicle lower controller.

[0016] Optionally, a first emergency braking button is integrated in the one-end vehicle upper controller;

[0017] A second emergency braking button is integrated in the two-end vehicle upper controller;

[0018] A third emergency braking button is integrated in the one-end vehicle lower controller;

[0019] A fourth emergency braking button is integrated in the two-end vehicle lower controller.

[0020] Optionally, in the manual driving mode, one or more of the upper master controllers on the first end car, the upper master controllers on the second end car, the lower master controllers on the first end car, and the lower master controllers on the second end car are connected to the emergency braking circuit.

[0021] Optionally, when the upper master controller on the first end car is connected to the emergency braking circuit, the upper master controller on the first end car is in parallel with the upper master controller ready relay on the first end car, and the upper master controller ready relay on the first end car is in a disconnected state when in parallel;

[0022] When the upper master controller on the second end car is connected to the emergency braking circuit, the upper master controller on the second end car is in parallel with the upper master controller ready relay on the second end car, and the upper master controller ready relay on the second end car is in a disconnected state when in parallel;

[0023] When the lower master controller on the first end car is connected to the emergency braking circuit, the lower master controller on the first end car is in parallel with the lower master controller ready relay on the first end car, and the lower master controller ready relay on the first end car is in a disconnected state when in parallel;

[0024] When the lower master controller on the second end car is connected to the emergency braking circuit, the lower master controller on the second end car is in parallel with the lower master controller ready relay on the second end car, and the lower master controller ready relay on the second end car is in a disconnected state when in parallel.

[0025] Optionally, each of the first emergency braking button, the second emergency braking button, the third emergency braking button, and the fourth emergency braking button includes two sets of contacts;

[0026] When the upper master controller on the first end car is connected to the emergency braking circuit, one set of contacts of the first emergency braking button is in parallel with one set of contacts of the upper master controller ready relay on the first end car, and one set of contacts of the upper master controller ready relay on the first end car is in a disconnected state, and the other set of contacts of the first emergency braking button is in parallel with the other set of contacts of the upper master controller ready relay on the first end car, and the other set of contacts of the upper master controller ready relay on the first end car is in a disconnected state;

[0027] When the upper master controller on the second end car is connected to the emergency braking circuit, one set of contacts of the second emergency braking button is in parallel with one set of contacts of the upper master controller ready relay on the second end car, and one set of contacts of the upper master controller ready relay on the second end car is in a disconnected state, and the other set of contacts of the second emergency braking button is in parallel with the other set of contacts of the upper master controller ready relay on the second end car, and the other set of contacts of the upper master controller ready relay on the second end car is in a disconnected state;

[0028] When the lower controller at the first end is connected to the emergency braking circuit, a set of contacts of the third emergency braking button is in parallel with a set of contacts of the readiness relay of the lower controller at the first end, and a set of contacts of the readiness relay of the lower controller at the first end is in an unconnected state; another set of contacts of the third emergency braking button is in parallel with another set of contacts of the readiness relay of the lower controller at the first end, and another set of contacts of the readiness relay of the lower controller at the first end is in an unconnected state;

[0029] When the lower controller at the second end is connected to the emergency braking circuit, a set of contacts of the fourth emergency braking button is in parallel with a set of contacts of the readiness relay of the lower controller at the second end, and a set of contacts of the readiness relay of the lower controller at the second end is in an unconnected state; another set of contacts of the fourth emergency braking button is in parallel with another set of contacts of the readiness relay of the lower controller at the second end, and another set of contacts of the readiness relay of the lower controller at the second end is in an unconnected state.

[0030] Optionally, the upper controller at the first end, the upper controller at the second end, the readiness relay of the upper controller at the first end, and the readiness relay of the upper controller at the second end are located in the carriage;

[0031] The lower controller at the first end, the lower controller at the second end, the readiness relay of the lower controller at the first end, the readiness relay of the lower controller at the second end, the carriage non-separation relay, the emergency braking trigger condition contact, and the no-emergency braking relay are located on the chassis.

[0032] The present application provides an emergency braking circuit for a rail vehicle, and the rail vehicle is a separable chassis type rail vehicle. The emergency braking circuit includes: a readiness relay of the upper controller at the first end, a readiness relay of the upper controller at the second end, a readiness relay of the lower controller at the first end, a readiness relay of the lower controller at the second end, a carriage non-separation relay, an emergency braking trigger condition contact, and a no-emergency braking relay. The readiness relay of the upper controller at the first end, the readiness relay of the upper controller at the second end, the readiness relay of the lower controller at the first end, the readiness relay of the lower controller at the second end, the emergency braking trigger condition contact, and the no-emergency braking relay are all in a connected state; the carriage non-separation relay is in an unconnected state.

[0033] The present application establishes a correct emergency braking circuit through the readiness relay of the upper controller at the first end, the readiness relay of the upper controller at the second end, the readiness relay of the lower controller at the first end, the readiness relay of the lower controller at the second end, the carriage non-separation relay, the emergency braking trigger condition contact, and the no-emergency braking relay, and realizes the emergency braking of the separable chassis type rail vehicle.

[0034] In addition, in one implementation, the connection relationships of the ready relay of the master controller on the first end car, the ready relay of the master controller on the second end car, the car body not separated relay, the ready relay of the master controller under the first end car, the ready relay of the master controller under the second end car, the emergency braking trigger condition contact, and the no emergency braking relay are defined, and the circuit structure details for performing emergency braking on the separable chassis type rail vehicle are defined.

[0035] In addition, in one implementation, the actual number of contacts of the ready relay of the master controller on the first end car, the ready relay of the master controller on the second end car, the ready relay of the master controller under the first end car, the ready relay of the master controller under the second end car, the car body not separated relay, and the emergency braking trigger condition contact are limited, and the circuit structure details for performing emergency braking on the separable chassis type rail vehicle are defined.

[0036] In addition, in one implementation, the connection relationship of two sets of contacts is limited, and the circuit structure details for performing emergency braking on the separable chassis type rail vehicle are defined.

[0037] In addition, in one implementation, the emergency braking circuit is further improved. It further includes: the master controller on the first end car, the master controller on the second end car, the master controller under the first end car, and the master controller under the second end car, and the circuit structure details for performing emergency braking on the separable chassis type rail vehicle are defined.

[0038] In addition, in one implementation, it is further defined that the master controller integrates an emergency braking button, and further the circuit structure details for performing emergency braking on the separable chassis type rail vehicle are defined.

[0039] In addition, in one implementation, the connection relationship between the master controller and the emergency braking circuit in the manual driving mode is defined, and further the circuit structure details for performing emergency braking on the separable chassis type rail vehicle are defined.

[0040] In addition, in one implementation, when the master controller is inserted into the emergency braking circuit, the connection relationship between the master controller and the ready relay of the master controller is limited, and further the circuit structure details for performing emergency braking on the separable chassis type rail vehicle are defined.

[0041] In addition, in one implementation, the connection relationship between the contacts of the emergency braking button and the contacts of the ready relay of the master controller is limited, and further the circuit structure details for performing emergency braking on the separable chassis type rail vehicle are defined.

[0042] In addition, in one implementation, the relationships between the master controller on the first end of the carbody, the master controller on the second end of the carbody, the master controller under the first end of the carbody, the master controller under the second end of the carbody, the ready relay of the master controller on the first end of the carbody, the ready relay of the master controller on the second end of the carbody, the ready relay of the master controller under the first end of the carbody, the ready relay of the master controller under the second end of the carbody, the carbody separation not relay, the emergency braking trigger condition contact, and the no emergency braking relay and the carbody and the chassis are defined, thereby clarifying the circuit implementation details for performing emergency braking on a detachable chassis type rail vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0044] Figure 1 is a schematic diagram of an emergency braking circuit for a rail vehicle provided by an embodiment of the present application;

[0045] Figure 2 is another schematic diagram of an emergency braking circuit for a rail vehicle provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the following further describes the exemplary embodiments of the present application in detail with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than an exhaustive list of all embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0047] In the process of implementing the present application, the inventor found that in order to ensure safety and reliability, the emergency braking circuit is designed based on the principle of "fail-safe". This circuit incorporates various unsafe factors that affect the safe operation of the vehicle, namely various trigger conditions for emergency braking, into the circuit, and can trigger emergency braking through the emergency braking button. To further improve safety and reliability, the trigger conditions and the emergency braking button are both incorporated in the positive and negative bipolar circuits. Traditional rail vehicles do not have the function of detachable carbody and chassis and independent operation of the chassis, so they do not have the function of triggering emergency braking through the emergency braking button of the master controller under the vehicle. Therefore, it is necessary to design an emergency braking circuit scheme for detachable chassis type rail vehicles.

[0048] Based on this, the present application provides an emergency braking circuit for a rail vehicle, which is a detachable chassis type rail vehicle. The emergency braking circuit includes: a master controller ready relay on the first end car, a master controller ready relay on the second end car, a master controller ready relay under the first end car, a master controller ready relay under the second end car, a car body not separated relay, an emergency braking trigger condition contact, and a no emergency braking relay. The master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the emergency braking trigger condition contact, and the no emergency braking relay are all in a connected state; the car body not separated relay is in a non-connected state. The present application establishes a correct emergency braking circuit through the master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the car body not separated relay, the emergency braking trigger condition contact, and the no emergency braking relay, realizing the emergency braking of the detachable chassis type rail vehicle.

[0049] The emergency braking circuit for a rail vehicle provided in this embodiment is for the emergency braking circuit of a detachable chassis type rail vehicle. The emergency braking circuit includes: a master controller ready relay on the first end car, a master controller ready relay on the second end car, a master controller ready relay under the first end car, a master controller ready relay under the second end car, a car body not separated relay, an emergency braking trigger condition contact, and a no emergency braking relay.

[0050] Among them, the master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the emergency braking trigger condition contact, and the no emergency braking relay are all in a connected state; the car body not separated relay is in a non-connected state. That is to say, when the master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the emergency braking trigger condition contact, and the no emergency braking relay are powered on, they are all in a connected state; when the car body not separated relay is powered on, it is in a non-connected state.

[0051] Among them, the master controller ready relay on the first end car, the master controller ready relay on the second end car, the car body not separated relay, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the emergency braking trigger condition contact, and the no emergency braking relay are connected in sequence.

[0052] In addition, in specific implementation, the master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the car body not separated relay, and the emergency braking trigger condition contact all include two sets of contacts;

[0053] The two sets of contacts of the upper controller ready relay at the first end car, the upper controller ready relay at the second end car, the lower controller ready relay at the first end car, the lower controller ready relay at the second end car, and the emergency brake trigger condition contacts are all in the connected state; the two sets of contacts of the car body separation relay are all in the unconnected state.

[0054] One set of contacts of the upper controller ready relay at the first end car, one set of contacts of the upper controller ready relay at the second end car, one set of contacts of the car body separation relay, one set of contacts of the lower controller ready relay at the first end car, one set of contacts of the lower controller ready relay at the second end car, one set of contacts of the emergency brake trigger condition contacts, and one end of the no emergency brake relay are connected in sequence.

[0055] The other set of contacts of the upper controller ready relay at the first end car, the other set of contacts of the upper controller ready relay at the second end car, the other set of contacts of the car body separation relay, the other set of contacts of the lower controller ready relay at the first end car, the other set of contacts of the lower controller ready relay at the second end car, the other set of contacts of the emergency brake trigger condition contacts, and the other end of the no emergency brake relay are connected in sequence.

[0056] In addition, the upper controller ready relay at the first end car and the upper controller ready relay at the second end car are located in the car body. The lower controller ready relay at the first end car, the lower controller ready relay at the second end car, the car body separation relay, the emergency brake trigger condition contacts, and the no emergency brake relay are located on the chassis.

[0057] As Figure 1 shown, the upper controller ready relay K01 at the first end car includes group A contacts and group B contacts, the upper controller ready relay K02 at the second end car includes group A contacts and group B contacts, the lower controller ready relay K03 at the first end car includes group A contacts and group B contacts, the lower controller ready relay K04 at the second end car includes group A contacts and group B contacts, the car body separation relay K05 includes group A contacts and group B contacts, and the emergency brake trigger condition contacts K06 includes group A contacts and group B contacts.

[0058] The A-group contacts of the upper controller ready relay K01 at the first end, the A-group contacts of the upper controller ready relay K02 at the second end, the A-group contacts of the car body non-separation relay K05, the A-group contacts of the lower controller ready relay K03 at the first end, the A-group contacts of the lower controller ready relay K04 at the second end, the A-group contacts of the emergency braking trigger condition contact K06, and one end of the no-emergency braking relay K07 are connected in sequence. Moreover, the A contact of the upper controller ready relay K01 at the first end is also connected to the positive pole #101 of the power supply circuit located in the car body, and the A-group contacts of the car body non-separation relay K05 are also connected to the positive pole #101 of the power supply circuit located in the chassis.

[0059] When the A-group contacts of the upper controller ready relay K01 at the first end, the A-group contacts of the upper controller ready relay K02 at the second end, the A-group contacts of the car body non-separation relay K05, the A-group contacts of the lower controller ready relay K03 at the first end, the A-group contacts of the lower controller ready relay K04 at the second end, and the A-group contacts of the emergency braking trigger condition contact K06 are powered on, they are all in a connected state.

[0060] The B-group contacts of the upper controller ready relay K01 at the first end, the B-group contacts of the upper controller ready relay K02 at the second end, the B-group contacts of the car body non-separation relay K05, the B-group contacts of the lower controller ready relay K03 at the first end, the B-group contacts of the lower controller ready relay K04 at the second end, the B-group contacts of the emergency braking trigger condition contact K06, and the other end of the no-emergency braking relay K07 are connected in sequence. Moreover, the B contact of the upper controller ready relay K01 at the first end is also connected to the negative pole #100 of the power supply circuit located in the car body, and the B-group contacts of the car body non-separation relay K05 are also connected to the positive pole #100 of the power supply circuit located in the chassis.

[0061] When the B-group contacts of the upper controller ready relay K01 at the first end, the B-group contacts of the upper controller ready relay K02 at the second end, the B-group contacts of the car body non-separation relay K05, the B-group contacts of the lower controller ready relay K03 at the first end, the B-group contacts of the lower controller ready relay K04 at the second end, and the B-group contacts of the emergency braking trigger condition contact K06 are powered on, they are all in a connected state.

[0062] Through Figure 1 The emergency braking circuit of the rail vehicle shown can achieve emergency braking in the automatic driving mode of the separable chassis type rail vehicle.

[0063] In order to achieve emergency braking in the manual driving mode, the emergency braking circuit further includes: a controller.

[0064] For example, the emergency braking circuit further includes: the upper controller on the first end car, the upper controller on the second end car, the lower controller on the first end car, and the lower controller on the second end car.

[0065] And an emergency braking button is integrated in the controller.

[0066] For example, a first emergency braking button is integrated in the upper controller on the first end car.

[0067] A second emergency braking button is integrated in the upper controller on the second end car.

[0068] A third emergency braking button is integrated in the lower controller on the first end car.

[0069] A fourth emergency braking button is integrated in the lower controller on the second end car.

[0070] In the manual driving mode, one or more of the upper controller on the first end car, the upper controller on the second end car, the lower controller on the first end car, and the lower controller on the second end car are inserted into the emergency braking circuit, that is, one or more of the upper controller on the first end car, the upper controller on the second end car, the lower controller on the first end car, and the lower controller on the second end car are connected to the emergency braking circuit.

[0071] When the upper controller on the first end car is connected to the emergency braking circuit, the upper controller on the first end car is in parallel with the ready relay of the upper controller on the first end car, and when in parallel, the ready relay of the upper controller on the first end car is in a disconnected state. That is to say, when the upper controller on the first end car is inserted into the emergency braking circuit, the ready relay of the upper controller on the first end car loses power, and at this time, the ready relay of the upper controller on the first end car is in a disconnected state.

[0072] When the upper controller on the second end car is connected to the emergency braking circuit, the upper controller on the second end car is in parallel with the ready relay of the upper controller on the second end car, and when in parallel, the ready relay of the upper controller on the second end car is in a disconnected state. That is to say, when the upper controller on the second end car is inserted into the emergency braking circuit, the ready relay of the upper controller on the second end car loses power, and at this time, the ready relay of the upper controller on the second end car is in a disconnected state.

[0073] When the lower controller on the first end car is connected to the emergency braking circuit, the lower controller on the first end car is in parallel with the ready relay of the lower controller on the first end car, and when in parallel, the ready relay of the lower controller on the first end car is in a disconnected state. That is to say, when the lower controller on the first end car is inserted into the emergency braking circuit, the ready relay of the lower controller on the first end car loses power, and at this time, the ready relay of the lower controller on the first end car is in a disconnected state.

[0074] When the lower controller at the second end is connected to the emergency braking circuit, the lower controller at the second end is in parallel with the lower controller ready relay at the second end. And when they are in parallel, the lower controller ready relay at the second end is in a disconnected state. That is to say, when the lower controller at the second end is inserted into the emergency braking circuit, the lower controller ready relay at the second end loses power, and at this time, the lower controller ready relay at the second end is in a disconnected state.

[0075] In addition, the first emergency braking button, the second emergency braking button, the third emergency braking button, and the fourth emergency braking button all include two sets of contacts.

[0076] When the upper controller at the first end is connected to the emergency braking circuit, one set of contacts of the first emergency braking button is in parallel with one set of contacts of the upper controller ready relay at the first end, and one set of contacts of the upper controller ready relay at the first end is in a disconnected state. The other set of contacts of the first emergency braking button is in parallel with the other set of contacts of the upper controller ready relay at the first end, and the other set of contacts of the upper controller ready relay at the first end is in a disconnected state. That is to say, when the upper controller at the first end is inserted into the emergency braking circuit, one set of contacts of the first emergency braking button is in parallel with one set of contacts of the upper controller ready relay at the first end, and the upper controller ready relay at the first end loses power, that is, one set of contacts of the upper controller ready relay at the first end is in a disconnected state. The other set of contacts of the first emergency braking button is in parallel with the other set of contacts of the upper controller ready relay at the first end, and the other set of contacts of the upper controller ready relay at the first end is in a disconnected state.

[0077] When the upper controller at the second end is connected to the emergency braking circuit, one set of contacts of the second emergency braking button is in parallel with one set of contacts of the upper controller ready relay at the second end, and one set of contacts of the upper controller ready relay at the second end is in a disconnected state. The other set of contacts of the second emergency braking button is in parallel with the other set of contacts of the upper controller ready relay at the second end, and the other set of contacts of the upper controller ready relay at the second end is in a disconnected state. That is to say, when the upper controller at the second end is inserted into the emergency braking circuit, one set of contacts of the second emergency braking button is in parallel with one set of contacts of the upper controller ready relay at the second end, and the upper controller ready relay at the second end loses power, and one set of contacts of the upper controller ready relay at the second end is in a disconnected state. The other set of contacts of the second emergency braking button is in parallel with the other set of contacts of the upper controller ready relay at the second end, and the other set of contacts of the upper controller ready relay at the second end is in a disconnected state.

[0078] When the lower controller at one end of the car is connected to the emergency braking circuit, a set of contacts of the third emergency braking button is in parallel with a set of contacts of the lower controller ready relay at one end of the car, and a set of contacts of the lower controller ready relay at one end of the car is in an unconnected state. Another set of contacts of the third emergency braking button is in parallel with another set of contacts of the lower controller ready relay at one end of the car, and another set of contacts of the lower controller ready relay at one end of the car is in an unconnected state. That is to say, when the lower controller at one end of the car is inserted into the emergency braking circuit, a set of contacts of the third emergency braking button is in parallel with a set of contacts of the lower controller ready relay at one end of the car, and the lower controller ready relay at one end of the car loses power, a set of contacts of the lower controller ready relay at one end of the car is in an unconnected state. Another set of contacts of the third emergency braking button is in parallel with another set of contacts of the lower controller ready relay at one end of the car, and another set of contacts of the lower controller ready relay at one end of the car is in an unconnected state.

[0079] When the lower controller at the other end of the car is connected to the emergency braking circuit, a set of contacts of the fourth emergency braking button is in parallel with a set of contacts of the lower controller ready relay at the other end of the car, and a set of contacts of the lower controller ready relay at the other end of the car is in an unconnected state. Another set of contacts of the fourth emergency braking button is in parallel with another set of contacts of the lower controller ready relay at the other end of the car, and another set of contacts of the lower controller ready relay at the other end of the car is in an unconnected state. That is to say, when the lower controller at the other end of the car is inserted into the emergency braking circuit, a set of contacts of the fourth emergency braking button is in parallel with a set of contacts of the lower controller ready relay at the other end of the car, and the lower controller ready relay at the other end of the car loses power, a set of contacts of the lower controller ready relay at the other end of the car is in an unconnected state. Another set of contacts of the fourth emergency braking button is in parallel with another set of contacts of the lower controller ready relay at the other end of the car, and another set of contacts of the lower controller ready relay at the other end of the car is in an unconnected state.

[0080] In addition, the upper controller at one end of the car and the upper controller at the other end of the car are located in the carriage. The lower controller at one end of the car and the lower controller at the other end of the car are located on the chassis.

[0081] That is to say, the emergency braking circuit at this time includes: the upper controller on the first car end, the upper controller on the second car end, the lower controller on the first car end, the lower controller on the second car end, the upper controller ready relay on the first car end, the upper controller ready relay on the second car end, the lower controller ready relay on the first car end, the lower controller ready relay on the second car end, the car body non-separation relay, the emergency braking trigger condition contact, and the no-emergency braking relay. Among them, the upper controller on the first car end, the upper controller on the second car end, the upper controller ready relay on the first car end, and the upper controller ready relay on the second car end are located in the car body. The lower controller on the first car end, the lower controller on the second car end, the lower controller ready relay on the first car end, the lower controller ready relay on the second car end, the car body non-separation relay, the emergency braking trigger condition contact, and the no-emergency braking relay are located on the chassis.

[0082] As Figure 2 shown (the controllers within the dashed box are connected to the circuit in the manual driving mode and not inserted in the fully automatic driving mode. When the manual driving mode is required, insert the controller at the corresponding position for vehicle driving operation), at this time, the upper controller A01 on the first car end includes group A contacts and group B contacts, the upper controller A02 on the second car end includes group A contacts and group B contacts, the upper controller ready relay K01 on the first car end includes group A contacts and group B contacts, the upper controller ready relay K02 on the second car end includes group A contacts and group B contacts, the lower controller A03 on the first car end includes group A contacts and group B contacts, the lower controller A04 on the second car end includes group A contacts and group B contacts, the lower controller ready relay K03 on the first car end includes group A contacts and group B contacts, the lower controller ready relay K04 on the second car end includes group A contacts and group B contacts, the car body non-separation relay K05 includes group A contacts and group B contacts, and the emergency braking trigger condition contact K06 includes group A contacts and group B contacts.

[0083] In the manual driving mode, one or more of the upper controller A01 on the first car end, the upper controller A02 on the second car end, the lower controller A03 on the first car end, and the lower controller A04 on the second car end are connected to the emergency braking circuit, that is, one or more of the upper controller A01 on the first car end, the upper controller A02 on the second car end, the lower controller A03 on the first car end, and the lower controller A04 on the second car end are inserted into the emergency braking circuit.

[0084] For example, in the manual driving mode, the master controller A01 at the first end car is connected to the emergency braking circuit (i.e., the master controller A01 at the first end car is inserted into the emergency braking circuit). At this time, the A-group contacts of the master controller A01 at the first end car are in parallel with the A-group contacts of the master controller ready relay K01 at the first end car. At this moment, the master controller ready relay K01 at the first end car loses power, and the A-group contacts of the master controller ready relay K01 at the first end car are in a disconnected state. One end of the parallel connection is connected to the positive pole #101 of the power supply circuit located in the carriage, and the other end is successively connected to the A-group contacts of the master controller ready relay K02 at the second end car, the A-group contacts of the carriage non-separation relay K05 (the other end of the A-group contacts of the carriage non-separation relay K05 is connected to the positive pole #101 of the power supply circuit located in the chassis), the A-group contacts of the master controller ready relay K03 under the first end car, the A-group contacts of the master controller ready relay K04 under the second end car, the A-group contacts of the emergency braking trigger condition contact K06, and one end of the no-emergency braking relay K07. The B-group contacts of the master controller A01 at the first end car are in parallel with the B-group contacts of the master controller ready relay K01 at the first end car. At this time, the B-group contacts of the master controller ready relay K01 at the first end car are in a disconnected state. One end of the parallel connection is connected to the negative pole #100 of the power supply circuit located in the carriage, and the other end is successively connected to the B-group contacts of the master controller ready relay K02 at the second end car, the B-group contacts of the carriage non-separation relay K05 (the other end of the B-group contacts of the carriage non-separation relay K05 is connected to the negative pole #100 of the power supply circuit located in the chassis), the B-group contacts of the master controller ready relay K03 under the first end car, the B-group contacts of the master controller ready relay K04 under the second end car, the B-group contacts of the emergency braking trigger condition contact K06, and the other end of the no-emergency braking relay K07.

[0085] For another example, in the manual driving mode, when the master controller A02 on the second end car inserts into the emergency braking circuit, at this time, the A-group contacts of the master controller A02 on the second end car are in parallel with the A-group contacts of the master controller ready relay K02 on the second end car. At this time, the master controller ready relay K02 on the second end car loses power, and the A-group contacts of the master controller ready relay K02 on the second end car are in an unconnected state. One end of the parallel connection is connected to one end of the A-group contacts of the master controller ready relay K02 on the first end car (the other end of the A-group contacts of the master controller ready relay K02 on the first end car is connected to the positive pole #101 of the power supply circuit located in the carriage), and the other end is successively connected to the A-group contacts of the carriage non-separation relay K05 (the other end of the A-group contacts of the carriage non-separation relay K05 is connected to the positive pole #101 of the power supply circuit located in the chassis), the A-group contacts of the master controller ready relay K03 under the first end car, the A-group contacts of the master controller ready relay K04 under the second end car, the A-group contacts of the emergency braking trigger condition contact K06, and one end of the no-emergency braking relay K07. The B-group contacts of the master controller A02 on the second end car are in parallel with the B-group contacts of the master controller ready relay K02 on the second end car. At this time, the B-group contacts of the master controller ready relay K02 on the second end car are in an unconnected state. One end of the parallel connection is connected to one end of the B-group contacts of the master controller ready relay K02 on the first end car (the other end of the B-group contacts of the master controller ready relay K02 on the first end car is connected to the negative pole #100 of the power supply circuit located in the carriage), and the other end is successively connected to the B-group contacts of the carriage non-separation relay K05 (the other end of the B-group contacts of the carriage non-separation relay K05 is connected to the negative pole #100 of the power supply circuit located in the chassis), the B-group contacts of the master controller ready relay K03 under the first end car, the B-group contacts of the master controller ready relay K04 under the second end car, the B-group contacts of the emergency braking trigger condition contact K06, and the other end of the no-emergency braking relay K07.

[0086] For another example, in the manual driving mode, if the controller A03 under the first-end car inserts into the emergency braking circuit, at this time, the group A contacts of the controller A03 under the first-end car are in parallel with the group A contacts of the ready relay K03 of the controller on the first-end car. At this time, the ready relay K03 of the controller on the first-end car loses power, and the group A contacts of the ready relay K03 of the controller on the first-end car are in an unconnected state. One end of the parallel connection is sequentially connected to the group A contacts of the emergency braking trigger condition contact K06 and one end of the no-emergency braking relay K07, and the other end of the parallel connection is sequentially connected to the group A contacts of the ready relay K04 of the controller under the second-end car, the group A contacts of the car body non-separation relay K05 (the other end of the group A contacts of the car body non-separation relay K05 is connected to the positive pole #101 of the power supply circuit located on the chassis), the group A contacts of the ready relay K02 of the controller on the second-end car, and the group A contacts of the ready relay K01 of the controller on the first-end car. Among them, the other end of the group A contacts of the ready relay K01 of the controller on the first-end car is connected to the positive pole #101 of the power supply circuit located in the car body. The group B contacts of the controller A03 under the first-end car are in parallel with the group B contacts of the ready relay K03 of the controller on the first-end car. At this time, the group B contacts of the ready relay K03 of the controller on the first-end car are in an unconnected state. One end of the parallel connection is sequentially connected to the group B contacts of the emergency braking trigger condition contact K06 and the other end of the no-emergency braking relay K07, and the other end of the parallel connection is sequentially connected to the group B contacts of the ready relay K04 of the controller under the second-end car, the group B contacts of the car body non-separation relay K05 (the other end of the group B contacts of the car body non-separation relay K05 is connected to the negative pole #100 of the power supply circuit located on the chassis), the group B contacts of the ready relay K02 of the controller on the second-end car, and the group B contacts of the ready relay K01 of the controller on the first-end car. Among them, the other end of the group B contacts of the ready relay K01 of the controller on the first-end car is connected to the negative pole #100 of the power supply circuit located in the car body.

[0087] For another example, in the manual driving mode, the lower controller A04 at the second end inserts into the emergency braking circuit. At this time, the A-group contacts of the lower controller A04 at the second end are in parallel with the A-group contacts of the upper controller ready relay K04 at the second end. At this time, the upper controller ready relay K03 at the second end loses power, and the A-group contacts of the upper controller ready relay K04 at the second end are in an unconnected state. One end of the parallel connection is sequentially connected to the A-group contacts of the lower controller A03 at the first end, the A-group contacts of the emergency braking trigger condition contact K06, and one end of the no-emergency braking relay K07. The other end of the parallel connection is sequentially connected to the A-group contacts of the car body separation relay K05 (the other end of the A-group contacts of the car body separation relay K05 is connected to the positive electrode #101 of the power supply circuit located on the chassis), the A-group contacts of the upper controller ready relay K02 at the second end, and the A-group contacts of the upper controller ready relay K01 at the first end. Among them, the other end of the A-group contacts of the upper controller ready relay K01 at the first end is connected to the positive electrode #101 of the power supply circuit located in the car body. The B-group contacts of the lower controller A04 at the second end are in parallel with the B-group contacts of the upper controller ready relay K04 at the second end. At this time, the B-group contacts of the upper controller ready relay K04 at the second end are in an unconnected state. One end of the parallel connection is sequentially connected to the B-group contacts of the lower controller A03 at the first end, the B-group contacts of the emergency braking trigger condition contact K06, and one end of the no-emergency braking relay K07. The other end of the parallel connection is sequentially connected to the B-group contacts of the car body separation relay K05 (the other end of the B-group contacts of the car body separation relay K05 is connected to the negative electrode #100 of the power supply circuit located on the chassis), the B-group contacts of the upper controller ready relay K02 at the second end, and the B-group contacts of the upper controller ready relay K01 at the first end. Among them, the other end of the B-group contacts of the upper controller ready relay K01 at the first end is connected to the negative electrode #100 of the power supply circuit located in the car body.

[0088] Through Figure 2 The emergency braking circuit of the rail vehicle shown can achieve emergency braking in the manual driving mode of a separable chassis type rail vehicle.

[0089] The emergency braking circuit of the rail vehicle provided in this embodiment can achieve the emergency braking function of a separable rail vehicle. That is, in this embodiment, a correct emergency braking circuit is established through the upper controller at the first end, the upper controller at the second end, the lower controller at the first end, the lower controller at the second end, the upper controller ready relay at the first end, the upper controller ready relay at the second end, the lower controller ready relay at the first end, the lower controller ready relay at the second end, the car body separation relay, the emergency braking trigger condition, and the no-emergency braking relay, realizing the function of inserting a controller at any one of the first end on the vehicle, the second end on the vehicle, the first end under the vehicle, and the second end under the vehicle and triggering emergency braking through the emergency braking button of the controller.

[0090] Taking the following Figure 2 as an example, the working process of the emergency braking circuit of the rail vehicle provided in this embodiment will be described again.

[0091] Figure 2 In the figure, #101 is the positive pole of the power supply circuit, and #100 is the negative pole of the power supply. The controller in the dashed box is connected to the circuit in the manual driving mode and not inserted in the fully automatic driving mode. When the manual driving mode is required, insert the controller at the corresponding position to perform vehicle driving operations. The emergency braking button is integrated in the controller.

[0092] When the contacts of the K01-K04 controller ready relays are in place for the corresponding controllers, the controller ready relays will be energized, causing the corresponding relay contacts A2-A3 and B2-B3 to be in the open state.

[0093] When the vehicle is in the state where the car body chassis is not separated, the car body not separated relay will be energized, causing the contacts A2-A3 and B2-B3 of the car body not separated relay to be in the open state.

[0094] The A-group and B-group contacts of K06 for the emergency braking trigger conditions are a comprehensive indication of various emergency braking trigger conditions and do not represent actual relays. When any emergency braking trigger condition is triggered, the A2-A3 and B2-B3 of K06 will be in the open state.

[0095] · For the fully automatic driving mode

[0096] 1) When the car body chassis is not separated

[0097] At this time, the vehicle is in good condition, there is no emergency braking trigger condition, and the car body not separated relay is energized and its contacts A2-A3 are disconnected. The circuit current flows as A3-A2 of K01, A3-A2 of K02, A2-A3 of K04, A2-A3 of K03, A3-A2 of K06, X1-X2 of K07, B3-B2 of K06, B2-B3 of K03, B2-B3 of K04, B3-B2 of K02, B3-B2 of K01.

[0098] If the vehicle triggers an emergency braking condition during normal operation, then the A2-A3 and B2-B3 of K06 will be disconnected, K07 will lose power, and the vehicle's emergency braking will be triggered. After a series of fault recoveries, when the emergency braking trigger condition disappears, the A2-A3 and B2-B3 of K06 will close again, the circuit will be successfully established, and the vehicle can resume normal operation.

[0099] 2) When the car body chassis is separated:

[0100] At this time, the vehicle is in good condition, there is no emergency braking trigger condition, the compartment separation relay loses power and its contacts A2 - A3 close. The circuit current flows through A3 - A2 of K05, A2 - A3 of K04, A2 - A3 of K03, A3 - A2 of K06, X1 - X2 of K07, B3 - B2 of K06, B2 - B3 of K03, B2 - B3 of K04, B3 - B2 of K05.

[0101] If the vehicle triggers the emergency braking condition during normal operation, then A2 - A3 and B2 - B3 of K06 disconnect, K07 loses power, and the vehicle's emergency braking is triggered. After a series of fault recoveries, when the emergency braking trigger condition disappears, A2 - A3 and B2 - B3 of K06 close again, the circuit is successfully established, and the normal operation of the vehicle can be resumed.

[0102] · For the manual driving mode

[0103] 1) When the carriage chassis is not separated:

[0104] Taking the insertion of the master controller on the one - end car as an example, at this time, the vehicle is in good condition, there is no emergency braking trigger condition, the compartment separation relay is powered on and its contacts A2 - A3 disconnect, and the master controller ready relay on the one - end car is powered on and its contacts A2 - A3 disconnect. The circuit current flows through the emergency braking button contacts of A01, A3 - A2 of K02, A2 - A3 of K04, A2 - A3 of K03, A3 - A2 of K06, X1 - X2 of K07, B3 - B2 of K06, B2 - B3 of K03, B2 - B3 of K04, B3 - B2 of K02, and the emergency braking button contacts of A01.

[0105] If the vehicle triggers the emergency braking condition during normal operation, then A2 - A3 and B2 - B3 of K06 disconnect, K07 loses power, and the vehicle's emergency braking is triggered. After a series of fault recoveries, when the emergency braking trigger condition disappears, A2 - A3 and B2 - B3 of K06 close again, the circuit is successfully established, and the normal operation of the vehicle can be resumed.

[0106] If the driver presses the emergency braking button on the master controller during normal vehicle operation, the emergency braking button contacts disconnect, K07 loses power, and the vehicle's emergency braking is triggered. After a series of fault recoveries, when the driver restores the emergency braking button to the closed state, A2 - A3 and B2 - B3 of K06 close again, the circuit is successfully established, and the normal operation of the vehicle can be resumed.

[0107] The same principle applies when inserting the master controller at the two - end of the vehicle, at the one - end under the vehicle, and at the two - end under the vehicle.

[0108] 2) When the carriage chassis is separated:

[0109] Taking the insertion of the lower controller at the first end of the vehicle as an example, at this time, the vehicle is in good condition, there is no emergency braking trigger condition, the carriage separation relay loses power and its contacts A2 - A3 close, and the lower controller ready relay at the first end of the vehicle gets power and its contacts A2 - A3 open. The circuit current flows through A3 - A2 of K05, A2 - A3 of K04, the emergency braking button contacts of A03, A3 - A2 of K06, X1 - X2 of K07, B3 - B2 of K06, the emergency braking button contacts of A03, B2 - B3 of K04, and B3 - B2 of K05.

[0110] If the vehicle triggers the emergency braking condition during normal operation, then A2 - A3 and B2 - B3 of K06 open, K07 loses power, and the vehicle's emergency braking is triggered. After a series of fault recoveries, when the emergency braking trigger condition disappears, A2 - A3 and B2 - B3 of K06 close again, the circuit is successfully established, and the normal operation of the vehicle can be resumed.

[0111] If the driver presses the emergency braking button on the controller during normal vehicle operation, the emergency braking button contacts open, K07 loses power, and the vehicle's emergency braking is triggered. After a series of fault recoveries, the driver restores the emergency braking button to the closed state, A2 - A3 and B2 - B3 of K06 close again, the circuit is successfully established, and the normal operation of the vehicle can be resumed.

[0112] Similarly, when inserting the controller at the second end under the vehicle.

[0113] This embodiment provides an emergency braking circuit for a rail vehicle. The rail vehicle is a separable chassis type rail vehicle. The emergency braking circuit includes: the upper controller ready relay at the first end of the vehicle, the upper controller ready relay at the second end of the vehicle, the lower controller ready relay at the first end of the vehicle, the lower controller ready relay at the second end of the vehicle, the carriage separation relay, the emergency braking trigger condition contacts, and the no - emergency - braking relay. This embodiment establishes a correct emergency braking circuit through the upper controller ready relay at the first end of the vehicle, the upper controller ready relay at the second end of the vehicle, the lower controller ready relay at the first end of the vehicle, the lower controller ready relay at the second end of the vehicle, the carriage separation relay, the emergency braking trigger condition contacts, and the no - emergency - braking relay, and realizes the emergency braking of the separable chassis type rail vehicle.

[0114] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0115] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

1. An emergency braking circuit for a rail vehicle, characterized in that, The rail vehicle is a detachable chassis type rail vehicle, and the emergency braking circuit includes: The master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the car body non-separation relay, the emergency braking trigger condition contact, and the no emergency braking relay; The master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the emergency braking trigger condition contact, and the no emergency braking relay are all in a connected state; The car body non-separation relay is in a non-connected state; The master controller ready relay on the first end car, the master controller ready relay on the second end car, the car body non-separation relay, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the emergency braking trigger condition contact, and the no emergency braking relay are connected in sequence; The master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, the car body non-separation relay, and the emergency braking trigger condition contact all include two groups of contacts; The two groups of contacts of the master controller ready relay on the first end car, the master controller ready relay on the second end car, the master controller ready relay under the first end car, the master controller ready relay under the second end car, and the emergency braking trigger condition contact are all in a connected state; The two groups of contacts of the car body non-separation relay are all in a non-connected state; One group of contacts of the master controller ready relay on the first end car, one group of contacts of the master controller ready relay on the second end car, one group of contacts of the car body non-separation relay, one group of contacts of the master controller ready relay under the first end car, one group of contacts of the master controller ready relay under the second end car, one group of contacts of the emergency braking trigger condition contact, and one end of the no emergency braking relay are connected in sequence; The other group of contacts of the master controller ready relay on the first end car, the other group of contacts of the master controller ready relay on the second end car, the other group of contacts of the car body non-separation relay, the other group of contacts of the master controller ready relay under the first end car, the other group of contacts of the master controller ready relay under the second end car, the other group of contacts of the emergency braking trigger condition contact, and the other end of the no emergency braking relay are connected in sequence.

2. The emergency braking circuit according to claim 1, wherein The emergency braking circuit further includes: the master controller on the first end car, the master controller on the second end car, the master controller under the first end car, and the master controller under the second end car.

3. The emergency braking circuit according to claim 2, wherein, A first emergency braking button is integrated in the master controller on the first end car; A second emergency braking button is integrated in the master controller on the second end car; A third emergency braking button is integrated in the master controller under the first end car; A fourth emergency braking button is integrated in the master controller under the second end car.

4. The emergency braking circuit according to claim 2, characterized in that, In the manual driving mode, one or more of the master controller on the first end car, the master controller on the second end car, the master controller under the first end car, and the master controller under the second end car are connected to the emergency braking circuit.

5. The emergency braking circuit according to claim 4, wherein, When the master controller on the first end car is connected to the emergency braking circuit, the master controller on the first end car is in parallel with the master controller ready relay on the first end car, and the master controller ready relay on the first end car is in a disconnected state when in parallel; When the master controller on the second end car is connected to the emergency braking circuit, the master controller on the second end car is in parallel with the master controller ready relay on the second end car, and the master controller ready relay on the second end car is in a disconnected state when in parallel; When the master controller under the first end car is connected to the emergency braking circuit, the master controller under the first end car is in parallel with the master controller ready relay under the first end car, and the master controller ready relay under the first end car is in a disconnected state when in parallel; When the master controller under the second end car is connected to the emergency braking circuit, the master controller under the second end car is in parallel with the master controller ready relay under the second end car, and the master controller ready relay under the second end car is in a disconnected state when in parallel.

6. The emergency braking circuit according to claim 3, characterized in that, The first emergency braking button, the second emergency braking button, the third emergency braking button, and the fourth emergency braking button all include two sets of contacts; When the master controller on the first end car is connected to the emergency braking circuit, one set of contacts of the first emergency braking button is in parallel with one set of contacts of the master controller ready relay on the first end car, and one set of contacts of the master controller ready relay on the first end car is in a disconnected state. The other set of contacts of the first emergency braking button is in parallel with the other set of contacts of the master controller ready relay on the first end car, and the other set of contacts of the master controller ready relay on the first end car is in a disconnected state; When the master controller on the second end car is connected to the emergency braking circuit, one set of contacts of the second emergency braking button is in parallel with one set of contacts of the master controller ready relay on the second end car, and one set of contacts of the master controller ready relay on the second end car is in a disconnected state. The other set of contacts of the second emergency braking button is in parallel with the other set of contacts of the master controller ready relay on the second end car, and the other set of contacts of the master controller ready relay on the second end car is in a disconnected state; When the master controller under the first end car is connected to the emergency braking circuit, one set of contacts of the third emergency braking button is in parallel with one set of contacts of the master controller ready relay under the first end car, and one set of contacts of the master controller ready relay under the first end car is in a disconnected state. The other set of contacts of the third emergency braking button is in parallel with the other set of contacts of the master controller ready relay under the first end car, and the other set of contacts of the master controller ready relay under the first end car is in a disconnected state; When the lower controller of the second end car is connected to the emergency braking circuit, a set of contacts of the fourth emergency braking button is in parallel with a set of contacts of the ready relay of the lower controller of the second end car, and a set of contacts of the ready relay of the lower controller of the second end car is in an unconnected state; another set of contacts of the fourth emergency braking button is in parallel with another set of contacts of the ready relay of the lower controller of the second end car, and another set of contacts of the ready relay of the lower controller of the second end car is in an unconnected state.

7. The emergency braking circuit according to claim 2, wherein, The upper controller of the first end car, the upper controller of the second end car, the ready relay of the upper controller of the first end car, and the ready relay of the upper controller of the second end car are located in the carriage. The lower controller of the first end car, the lower controller of the second end car, the ready relay of the lower controller of the first end car, the ready relay of the lower controller of the second end car, the carriage separation relay, the emergency braking trigger condition contact, and the no emergency braking relay are located on the chassis.

Images