CN112248816A - LCU three-rail current-receiving control method based on subway vehicle - Google Patents
LCU three-rail current-receiving control method based on subway vehicle Download PDFInfo
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- CN112248816A CN112248816A CN202011132273.3A CN202011132273A CN112248816A CN 112248816 A CN112248816 A CN 112248816A CN 202011132273 A CN202011132273 A CN 202011132273A CN 112248816 A CN112248816 A CN 112248816A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000004913 activation Effects 0.000 claims description 11
- 230000001960 triggered effect Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 238000003745 diagnosis Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- XAGAASDWSFGQEC-UHFFFAOYSA-N ethyl-(n-(4-methylphenyl)sulfonylanilino)mercury Chemical compound C=1C=C(C)C=CC=1S(=O)(=O)N([Hg]CC)C1=CC=CC=C1 XAGAASDWSFGQEC-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241000702481 Chloris striate mosaic virus Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/38—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
- B60L5/39—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails from third rail
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to an LCU three-rail current-receiving control method based on a subway vehicle. The safety of the vehicle current collection is ensured, the scheme is simple to operate, and the hardware cost is saved.
Description
Technical Field
The invention relates to control of a current collector of a subway vehicle, and belongs to the field of design of a subway vehicle control circuit, an LCU (lower control unit) and a network control system.
Background
The pneumatic current collector is widely used in a vehicle project with a three-rail current collection mode or a double current collection mode in which a pantograph and a current collector exist simultaneously, and the pneumatic current collector is electrified by controlling the electromagnetic valve for a period of time to realize the lifting control of the pneumatic current collector.
At present, the three-rail current-receiving finished automobile pneumatic current collector adopts centralized control, and the centralized control circuit comprises an instruction sending button, a train activation signal, a switch, a relay, a train line and the like which are arranged in a driver cab to realize the rising/falling of the current collector, and simultaneously comprises an interlocking circuit independently arranged in each carriage and an execution circuit independently arranged in each carriage. When a button command in the cab sends a signal, an interlocking circuit in each carriage executes the action and controls the current collector to ascend or descend, and the time for the current collector to ascend/descend to the position is inconsistent.
The prior art has the following defects: the train lines and the relays arranged on the whole train are more, time is consumed during whole train wiring construction, the hardware cost is higher, and the failure rate is high. On the other hand, the failure of the button signal or the failure of a certain node of a hard wire can cause the failure point and the failure point to transmit the instruction of the whole vehicle, even cause the rescue in the garage during shunting, and influence the efficiency of vehicle receiving and dispatching.
Disclosure of Invention
The invention mainly aims to solve the problems in the prior art and provides an LCU three-rail current collection control method based on a subway vehicle. The safety of the vehicle current collection is ensured, the scheme is simple to operate, and the hardware cost is saved.
In order to solve the technical problems, the LCU three-rail current-receiving control method based on the subway vehicle comprises a boot lifting control method and a boot lowering control method,
the boot lifting control method comprises the following steps:
after a driver cab at the home terminal is activated, when a current collector soft lifting button on a driver display screen is triggered and activated and a soft lowering button is not triggered, an LCU receives a soft trigger activation instruction forwarded by a TCMS and a vehicle zero-speed signal, and simultaneously detects a current collector enabling signal, the LCU logically diagnoses that a boot lifting condition is met, the LCU transmits the boot lifting instruction to a whole vehicle, the LCU of the whole vehicle sets the boot lifting instruction to a high level after receiving the boot lifting soft trigger instruction, a boot lifting instruction electromagnetic valve of a current collector of the whole vehicle is electrified and kept, or sets the low level to cut off an air circuit after receiving a boot lifting position signal sent by a current collector position detection switch of the whole vehicle, and the boot lifting of the whole vehicle is in place;
the boot descending control method comprises the following steps:
when a current collector soft-falling button on a driver display screen is triggered to activate, a vehicle zero-speed signal and a local-end driver cab are activated, the LCU receives the information forwarded by the TCMS, the LCU logically diagnoses that a boot-falling condition is met, the LCU transmits a boot-falling instruction to the whole vehicle, the LCU of the whole vehicle receives the boot-falling instruction of the current collector, sets the boot-falling instruction at a high level and transmits the boot-falling instruction to the TCMS, an auxiliary load is cut off, a boot-falling electromagnetic valve of the current collector of the whole vehicle is electrified and kept, or the boot-falling instruction sets a low level to cut off an air circuit after receiving a boot-falling signal sent by a position detection switch of the current collector of.
The invention has the following beneficial effects:
the lifting control of the current collector is realized in a mode of communicating a TCMS (train control system) with an LCU (liquid control unit) data stream, and the LCU data diagnosis instruction of the whole vehicle is sent in a mode of 2 multiplied by 2 to 2, so that the logic diagnosis and the instruction execution are safe and reliable, the failure rate is low, the instruction is synchronously sent, and the execution consistency of the lifting instruction of the current collector is high; when a single vehicle current collector has a fault, network isolation can be carried out, and the fault vehicle current collector is not controlled by the whole vehicle; the whole vehicle cancels hardware such as train lines, relays and the like, and adopts data communication.
Drawings
FIG. 1 is a control circuit diagram of the present invention.
Fig. 2 is a flowchart of a boot lifting control method of the present invention.
Fig. 3 is a flowchart of the boot descending control method of the present invention.
Detailed Description
The following explains an embodiment of the present invention with reference to the drawings.
The LCU three-rail current-receiving control method based on the subway vehicle has certain requirements on software and hardware of the vehicle. The whole vehicle needs to be provided with the LCU, and the LCU has the communication function of the whole vehicle. A TCMS system needs to arrange soft trigger buttons for lifting and lowering the boots on a driver display screen HMI, and after a command is triggered, the lifting control of the current collector is realized through a mode of command signal acquisition and TCMS command transmission.
Fig. 1 is a diagram of a control circuit of the present invention, which is a conventional circuit, and is briefly described below.
In the figure, CSRPB is a current collector boot lifting button, CSLPB is a current collector boot lowering button, CSMV1MV is a current collector air circuit control solenoid valve, EMTS is a standby mode switch, CSRPB is a boot lifting button, CSLPB is a boot lowering button, and CSMV is a boot lifting solenoid valve.
As shown in fig. 2, the boot lifting control method is as follows:
after a driver cab at the home end is activated, when a current collector soft-lifting button on a driver display screen HMI is triggered and activated and a soft-lifting button IV is not triggered (the shoe-lifting instruction can interrupt the shoe-lifting instruction), an LCU receives a soft-triggering activation instruction forwarded by a TCMS, a vehicle is at zero speed, and simultaneously the LCU detects a current collector enabling signal, the LCU logically diagnoses that the shoe-lifting condition is met, the LCU transmits the shoe-lifting instruction to the whole vehicle in an MVB data flow mode, the LCU of the whole vehicle sets the shoe-lifting instruction to a high level after receiving the activation of the shoe-lifting soft-triggering instruction, 24 current collector shoe-lifting electromagnetic valves of the whole vehicle positioned on a bogie are electrified and keep lasting for 5s, or sets the air circuit of the whole vehicle to a low level to cut off the air circuit after receiving the position-lifting signal sent by 24 current collector position detection switches of the whole vehicle, and the shoe is in place; when a driver displays a screen black, a spare CSRPB boot lifting button on a driver platform can be operated, a hard-line instruction is sent to an LCU, the LCU combines a vehicle zero speed (first), a vehicle activation (third), a soft descending button (fourth) and a vehicle current collector enabling signal (sixth) shown in the figure 2, a state diagnosis is carried out, and a current collector lifting instruction is sent when logic is met; when a network fails, an EMTS (empirical mode transfer System) positioned on a driver platform is marked to a bypass position, an emergency traction mode is activated, a CSRPB boot lifting button positioned on the driver platform is pressed, a hard line instruction is sent to an LCU (link control Unit), and the LCU sends a current collector lifting instruction by combining a vehicle zero speed (zero speed), a vehicle activation (three), a soft lowering button (four) and a vehicle current collector enabling signal (sixth state diagnosis), so that the self-rescue of the vehicle under the condition of the network failure is ensured. When one vehicle current collector cannot rise due to faults, the fault isolation soft button on the HMI screen can be operated to isolate the current collector of the vehicle, the current collector is not controlled by a vehicle rising instruction, and the HMI screen triggers a current collector descending instruction of the unit.
As shown in fig. 3, the boot descending control method is as follows:
when a soft descending button of a current collector on a driver display screen HMI is triggered and activated (a boot ascending instruction cannot interrupt a boot descending instruction), an LCU receives a boot descending soft button, a trigger activation instruction, a vehicle zero speed and a local driver cab which are forwarded by a TCMS are received, a state signal is activated, the LCU logic diagnosis is carried out to judge that the boot descending condition is met, the LCU transmits the boot descending instruction to a whole vehicle in an MVB data flow mode, the LCU of the whole vehicle sets a high level to transmit the boot descending instruction to the TCMS after receiving the boot descending instruction of the current collector, an auxiliary load is cut off, 24 current collector boot descending electromagnetic valves of the whole vehicle are electrified and keep lasting for 5s after delaying for 1s, or the boot descending instruction sets a low level to cut off an air circuit after receiving a position descending signal sent by 24 current collector position detection switches of the whole vehicle. The whole vehicle is lowered to the proper position. When the network is in a black screen or communication failure, a spare CSLPB boot descending button on a driver machine can be operated, a hard line instruction is sent to the LCU, and the LCU sends a current collector descending instruction by combining with a vehicle current collector enabling signal.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (6)
1. An LCU three-rail current-receiving control method based on a subway vehicle comprises a boot lifting control method and a boot lowering control method,
the boot lifting control method comprises the following steps:
after a local-end driver cab is activated, when a current collector soft-lifting button on a driver display screen (HMI) is triggered and activated and a soft-lowering button is not triggered, an LCU receives a soft-triggering activation instruction forwarded by a TCMS (train control system) and a vehicle zero-speed signal and detects a current collector enabling signal at the same time, the LCU logically diagnoses that a boot-lifting condition is met, the LCU transmits the boot-lifting instruction to a whole train, the LCU of the whole train sets the boot-lifting instruction to a high level after receiving the boot-lifting soft-triggering instruction activation, a boot-lifting instruction solenoid valve of a current collector of the whole train is electrified and kept, or sets the boot-lifting instruction to a low level to cut off an air circuit after receiving a location-lifting signal sent by a position detection switch;
the boot descending control method comprises the following steps:
when a current collector soft-falling button on a driver display screen (HMI) is triggered to be activated, a vehicle zero-speed signal is sent, a local-end driver cab is activated, the LCU receives the information forwarded by the TCMS, the LCU logically diagnoses that the boot-falling condition is met, the LCU transmits a boot-falling instruction to the whole vehicle, the LCU of the whole vehicle receives the boot-falling instruction of the current collector, sets the boot-falling instruction to be at a high level and transmits the boot-falling instruction to the TCMS, an auxiliary load is cut off, a boot-falling electromagnetic valve of the current collector of the whole vehicle is electrified and kept, or the boot-falling instruction sets a low level to cut off an air circuit after receiving a boot-falling signal sent by a position detection switch.
2. The LCU three-rail current-receiving control method based on the subway vehicle as claimed in claim 1, wherein: in the boot lifting control method, when a driver displays a screen which is black, a spare boot lifting button (CSRPB) on a driver platform is operated, a hard-line instruction is sent to an LCU, the LCU diagnoses by combining the states of a vehicle zero-speed signal, a driver cab activation signal, a soft-down button and a vehicle current collector enabling signal, and a current collector lifting instruction is sent when the logic is met.
3. The LCU three-rail current-receiving control method based on the subway vehicle as claimed in claim 1, wherein: according to the boot lifting control method, when a network fault occurs, an emergency mode switch (EMTS) is turned to a bypass position, an emergency traction mode is activated, a boot lifting button (CSRPB) is pressed, a hard line instruction is sent to an LCU, the LCU combines the state diagnosis of a vehicle zero speed, a cab activation signal, a soft lowering button and a vehicle current collector enabling signal, and sends a current collector lifting instruction when logic is met, so that the self-rescue of the vehicle under the network fault condition is guaranteed.
4. The LCU three-rail current-receiving control method based on the subway vehicle as claimed in claim 1, wherein: in the boot lifting control method, when one vehicle current collector cannot be lifted due to faults, a driver operates a fault isolation soft button on a driver display screen (HMI) to isolate the current collector of the vehicle, the current collector is not controlled by a vehicle lifting instruction, and the driver display screen (HMI) triggers a current collector descending instruction of the unit.
5. The LCU three-rail current-receiving control method based on the subway vehicle as claimed in claim 1, wherein: in the boot control method, under the condition of network black screen or communication failure, a spare boot descending button (CSLPB) on a driver platform is operated, a hard line instruction is sent to an LCU, and the LCU sends a current collector descending instruction by combining with a vehicle current collector enabling signal.
6. The LCU three-rail current-receiving control method based on the subway vehicle as claimed in claim 1, wherein: and the LCU sends the boot lifting instruction and the boot lowering instruction to the whole vehicle in a MVB data flow mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011132273.3A CN112248816B (en) | 2020-10-21 | LCU three-rail current-collecting control method based on metro vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011132273.3A CN112248816B (en) | 2020-10-21 | LCU three-rail current-collecting control method based on metro vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112248816A true CN112248816A (en) | 2021-01-22 |
| CN112248816B CN112248816B (en) | 2024-06-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE659248A (en) * | 1964-02-07 | 1965-05-28 | ||
| DE1513614A1 (en) * | 1965-05-21 | 1969-05-14 | Faiveley Sa | Pantographic pantograph |
| SU1283127A1 (en) * | 1985-06-17 | 1987-01-15 | Всесоюзный Научно-Исследовательский Институт Железнодорожного Транспорта | Current collector for vehicle |
| WO2017219795A1 (en) * | 2016-06-23 | 2017-12-28 | 中车南京浦镇车辆有限公司 | Centralized control circuit for pneumatic current collector |
| CN107891872A (en) * | 2017-10-30 | 2018-04-10 | 中车南京浦镇车辆有限公司 | A kind of emergent pulliung circuit based on Vehicular accumulator cell |
| CN109501599A (en) * | 2018-10-30 | 2019-03-22 | 中车南京浦镇车辆有限公司 | A kind of railcar is changed autocontrol method by circulation |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE659248A (en) * | 1964-02-07 | 1965-05-28 | ||
| DE1513614A1 (en) * | 1965-05-21 | 1969-05-14 | Faiveley Sa | Pantographic pantograph |
| SU1283127A1 (en) * | 1985-06-17 | 1987-01-15 | Всесоюзный Научно-Исследовательский Институт Железнодорожного Транспорта | Current collector for vehicle |
| WO2017219795A1 (en) * | 2016-06-23 | 2017-12-28 | 中车南京浦镇车辆有限公司 | Centralized control circuit for pneumatic current collector |
| CN107891872A (en) * | 2017-10-30 | 2018-04-10 | 中车南京浦镇车辆有限公司 | A kind of emergent pulliung circuit based on Vehicular accumulator cell |
| CN109501599A (en) * | 2018-10-30 | 2019-03-22 | 中车南京浦镇车辆有限公司 | A kind of railcar is changed autocontrol method by circulation |
Non-Patent Citations (1)
| Title |
|---|
| 陈联彬: "地铁第三轨及其受流器的测量系统", 现代城市轨道交通, no. 01, 15 February 2005 (2005-02-15), pages 10 * |
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