CN216467841U - Redundant brake control circuit of train - Google Patents
Redundant brake control circuit of train Download PDFInfo
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- CN216467841U CN216467841U CN202122767228.1U CN202122767228U CN216467841U CN 216467841 U CN216467841 U CN 216467841U CN 202122767228 U CN202122767228 U CN 202122767228U CN 216467841 U CN216467841 U CN 216467841U
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- parking brake
- train
- contact pair
- brake applying
- tcms
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Abstract
The utility model discloses a redundant brake control circuit of a train, which comprises a parking brake applying train line and a plurality of parking brake applying electromagnetic valves, wherein each parking brake applying electromagnetic valve is electrically connected with the parking brake applying train line; the system also comprises a switch unit, a TCMS and a plurality of BCUs; one ends of the BCUs are electrically connected with the TCMS, and the other ends of the BCUs are electrically connected with the parking brake applying electromagnetic valves in a one-to-one correspondence mode; the switch unit comprises a first contact pair and a second contact pair, the first contact pair is connected with the parking brake application train line in series, and the second contact pair is connected with the TCMS in series. Due to the adoption of the technical scheme, compared with the prior art, the utility model ensures that the failure of the whole train parking brake applying function can not be caused even if a certain part on the train parking brake applying circuit fails (single point) by arranging two redundant brake control circuits, and improves the safety level of the train parking brake applying function.
Description
Technical Field
The utility model relates to the field of train brake control, in particular to a train redundant brake control circuit.
Background
The application of the parking brake of the rail transit vehicle is controlled by applying a train line through the parking brake, the instruction of the parking brake train line comes from a parking brake applying button, the applying button contact is of a single-contact structure, and when the contact of the button fails or a certain node of a train line loop fails, the train parking brake cannot be applied, so that the single-point failure of the existing parking brake applying control circuit can possibly cause the application of the parking brake of the train, and the running safety of the train is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the train parking brake cannot be applied and the train running safety is influenced probably because of single-point failure of the existing parking brake application control circuit in the background technology, the utility model provides a train redundant brake control circuit, and the specific technical scheme is as follows.
A redundant brake control circuit of a train comprises a parking brake applying train line and a plurality of parking brake applying electromagnetic valves, wherein each parking brake applying electromagnetic valve is electrically connected with the parking brake applying train line; the method is characterized in that: the system also comprises a switch unit, a TCMS and a plurality of BCUs;
one ends of the BCUs are electrically connected with the TCMS, and the other ends of the BCUs are electrically connected with the parking brake applying electromagnetic valves in a one-to-one correspondence mode;
the switch unit comprises a first contact pair and a second contact pair, the first contact pair is connected with the parking brake application train line in series, and the second contact pair is connected with the TCMS in series.
TCMS is a train control and management system, and BCU is a brake control unit. Whereby when the parking brake apply button is depressed, the first contact pair and the second contact pair are simultaneously closed, the first contact pair closing producing an electrical signal which is transmitted via the parking brake apply train line to the parking brake apply solenoid of each vehicle; the second contact pair is closed to generate an electric signal, the signal enters a TCMS system, the TCMS sends the signal to each BCU through a network, each BCU sends the electric signal to each parking brake applying electromagnetic valve through a hard wire, the parking brake applying electromagnetic valve applies parking brake after receiving one of the two signals, the two applied electric signals are mutually redundant, the condition that a certain part on a train parking brake applying circuit fails (single point) can be ensured, the applying function failure of the whole train parking brake can not be caused, and the applying function safety level of the train parking brake is improved.
Preferably, the first contact pair and the second contact pair are both normally open contacts, and the first contact pair and the second contact pair are interlocked.
Preferably, the second contact pair is electrically connected to the TCMS by a hard wire.
Preferably, each BCU is provided in each car of the train.
Preferably, the TCMS is electrically connected to the BCU through a network cable.
Preferably, the BCU is electrically connected to the parking brake apply solenoid valve by hard wiring.
By adopting the technical scheme, compared with the prior art, the utility model ensures that the failure of the whole train parking brake applying function can not be caused even if a certain part on the train parking brake applying circuit fails (single point) by arranging two redundant brake control circuits, thereby improving the safety level of the train parking brake applying function.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Referring to fig. 1, a redundant brake control circuit for a train includes a parking brake applying train line and a plurality of parking brake applying solenoid valves, each of which is electrically connected to the parking brake applying train line; also included are a switch unit, a TCMS, and a plurality of BCUs.
And each BCU is respectively arranged in each carriage of the train. One ends of the BCUs are electrically connected with the TCMS through network cables, and the other ends of the BCUs are electrically connected with the parking brake applying electromagnetic valves in a one-to-one correspondence mode through hard wires;
the switch unit (i.e., parking brake apply button) includes a first contact pair in series with the parking brake apply train line and a second contact pair in series with the TCMS via a hard wire.
The first contact pair and the second contact pair are both normally open contacts, and the first contact pair and the second contact pair are interlocked.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A redundant brake control circuit of a train comprises a parking brake applying train line and a plurality of parking brake applying electromagnetic valves, wherein each parking brake applying electromagnetic valve is electrically connected with the parking brake applying train line; the method is characterized in that: the system also comprises a switch unit, a TCMS and a plurality of BCUs;
one ends of the BCUs are electrically connected with the TCMS, and the other ends of the BCUs are electrically connected with the parking brake applying electromagnetic valves in a one-to-one correspondence mode;
the switch unit comprises a first contact pair and a second contact pair, the first contact pair is connected with the parking brake application train line in series, and the second contact pair is connected with the TCMS in series.
2. The redundant brake control circuit for a train of claim 1, wherein: the first contact pair and the second contact pair are both normally open contacts, and the first contact pair and the second contact pair are interlocked.
3. The redundant brake control circuit for a train according to claim 1 or 2, wherein: the second contact pair is electrically connected to the TCMS by a hard wire.
4. The redundant brake control circuit for a train according to claim 1 or 2, wherein: and each BCU is respectively arranged in each carriage of the train.
5. The redundant brake control circuit for a train according to claim 1 or 2, wherein: the TCMS is electrically connected with the BCU through a network cable.
6. The train redundant brake control circuit according to claim 1 or 2, wherein: the BCU is electrically connected with the parking brake applying solenoid valve through a hard wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122767228.1U CN216467841U (en) | 2021-11-12 | 2021-11-12 | Redundant brake control circuit of train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122767228.1U CN216467841U (en) | 2021-11-12 | 2021-11-12 | Redundant brake control circuit of train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216467841U true CN216467841U (en) | 2022-05-10 |
Family
ID=81451219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122767228.1U Active CN216467841U (en) | 2021-11-12 | 2021-11-12 | Redundant brake control circuit of train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216467841U (en) |
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2021
- 2021-11-12 CN CN202122767228.1U patent/CN216467841U/en active Active
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