CN112248816B - LCU three-rail current-collecting control method based on metro vehicle - Google Patents
LCU three-rail current-collecting control method based on metro vehicle Download PDFInfo
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- CN112248816B CN112248816B CN202011132273.3A CN202011132273A CN112248816B CN 112248816 B CN112248816 B CN 112248816B CN 202011132273 A CN202011132273 A CN 202011132273A CN 112248816 B CN112248816 B CN 112248816B
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Abstract
The invention relates to an LCU three-rail current-collecting control method based on a metro vehicle. The vehicle current-receiving safety is ensured, the scheme is simple to operate, and meanwhile, the hardware cost is saved.
Description
Technical Field
The invention relates to a subway vehicle current collector control, and belongs to the field of subway vehicle control circuits, LCUs and network control system design.
Background
The pneumatic current collector is widely used in three-rail current collector or double current collector mode vehicle projects in which current collectors exist simultaneously, and the pneumatic current collector is controlled to be electrified for a period of time by controlling the electromagnetic valve to realize lifting control of the pneumatic current collector.
The current three-rail current-collecting whole-vehicle 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 cab to realize the lifting/lowering of the current collector, and simultaneously comprises an interlocking circuit which is independently arranged in each carriage and an execution circuit which is independently arranged in each carriage. After the button instruction in the cab sends out a signal, the interlocking circuit in each carriage executes actions and controls the current collector to ascend or descend, and the ascending/descending time of the current collector of the whole car is inconsistent.
The prior art has the following disadvantages: the train lines and the relays are arranged on the whole train, time is wasted when the whole train is subjected to wiring construction, the hardware cost is high, and the failure rate is high. On the other hand, a button signal fault or a hard wire node fault can cause that a whole car instruction cannot be transmitted after the fault point, even cause rescue during shunting in a warehouse, and influence the car receiving and transmitting efficiency.
Disclosure of Invention
The invention mainly aims at solving the problems in the prior art, and provides an LCU three-rail current-collecting control method based on a metro vehicle. The vehicle current-receiving safety is ensured, the scheme is simple to operate, and meanwhile, the hardware cost is saved.
In order to solve the technical problems, the LCU three-rail current-controlled method based on the metro vehicle comprises a lift shoe control method and a lift shoe control method,
The shoe lifting control method comprises the following steps:
After the driver cab at the end is activated, when a soft rising button of a current collector on a driver display screen is triggered and activated and a soft falling button is not triggered, after an LCU receives a soft triggering activation instruction forwarded by a TCMS, a vehicle zero-speed signal and a current collector enabling signal are detected by the LCU at the same time, logic diagnosis of the lift boot condition of the LCU is met, the lift boot instruction is transmitted to the whole vehicle by the LCU, the lift boot instruction is set to a high level after the lift boot soft triggering instruction is activated by the LCU, a lift boot electromagnetic valve of the current collector of the whole vehicle is powered on and kept, or a lift instruction is set to a low level after a lift boot in place signal sent by a position detection switch of the current collector of the whole vehicle is received to cut off a gas path, and the lift boot of the whole vehicle is in place;
the boot descending control method comprises the following steps:
When a soft button of the current collector on a driver display screen is triggered and activated, a vehicle zero-speed signal is activated, and a driver cab at the local end is activated, the LCU receives the information forwarded by the TCMS, the LCU logically diagnoses that the boot lowering condition is met, the LCU transmits a boot lowering instruction to the whole vehicle, the whole vehicle LCU receives the boot lowering instruction of the current collector, then the boot lowering instruction is set at a high level and is transmitted to the TCMS, auxiliary loads are removed, a boot lowering electromagnetic valve of the whole vehicle current collector is powered on and kept, or a low level cutting gas circuit is set by the boot lowering instruction after receiving a boot lowering signal sent by a position detection switch of the whole vehicle current collector, so that the whole vehicle is in place after the boot lowering instruction is received.
The invention has the following beneficial effects:
The lifting control of the current collector is realized by the mode of communication between the TCMS and the LCU data stream, the transmission of the data diagnosis instruction of the whole car LCU adopts a mode of taking 2 multiplied by 2, the logic diagnosis and the instruction execution are safe and reliable, the failure rate is low, the instruction is synchronously transmitted, and the execution consistency of the lifting instruction of the current collector is high; when a single-vehicle current collector fails, network isolation can be performed, and the failed vehicle current collector is not controlled by the whole vehicle; the whole vehicle cancels hardware such as a train line, a relay and the like and adopts data communication.
Drawings
Fig. 1 is a control circuit diagram of the present invention.
FIG. 2 is a flow chart of a lift shoe control method of the present invention.
FIG. 3 is a flow chart of the boot-lowering control method of the present invention.
Detailed Description
Embodiments of the present invention will be explained below with reference to the drawings.
The LCU three-rail current-collecting control method based on the metro vehicle has certain requirements on software and hardware of the vehicle. The LCU is required to be installed on the whole vehicle, and the LCU has the whole vehicle communication function. The TCMS system needs to set a soft trigger button for lifting and lowering boots on the HMI of the driver display screen, and realizes the lifting control of the current collector by a mode of acquiring instruction signals and transmitting TCMS instructions after the instructions are triggered.
Fig. 1 is a control circuit diagram of the present invention, which is a conventional circuit, and will be briefly described below.
In the figure, CSRPB is a current collector lifting boot button, CSLPB is a current collector lowering button, CSMV MV is a current collector gas circuit control electromagnetic valve, EMTS is a standby mode switch, CSRPB is a lifting boot button, CSLPB is a lifting boot button, and CSMV is a lifting boot electromagnetic valve.
As shown in fig. 2, the shoe lifting control method is as follows:
After the driver cab at the local end is activated ③, when the soft rising button ② of the current collector on the driver display screen HMI is triggered and activated and the soft falling button ④ is not triggered (the boot falling instruction can interrupt the boot rising instruction), the LCU receives the soft triggering and activating instruction ② forwarded by the TCMS, When the vehicle is at zero speed ① and the LCU detects the current collector enabling ⑥ signal, the LCU logic diagnoses ⑤ boot lifting conditions are met, the LCU transmits boot lifting instructions to the whole vehicle in an MVB data flow mode, after the whole vehicle LCU receives the boot lifting soft trigger instruction to activate, The boot lifting command is set at a high level, the electromagnetic valves of the 24 current collectors of the whole car positioned on the bogie are electrified and kept for 5s, or the boot lifting command is set at a low level to cut off a gas circuit after receiving the in-place lifting signals sent by the 24 current collector position detection switches of the whole car, and the boot lifting of the whole car is in place; When the display screen of the driver is black, the spare CSRPB liter boot buttons on the driver's desk can be operated, hard-wire instructions are sent to the LCU, the LCU combines the vehicle zero speed ①, the vehicle activation ③, the soft-reducing buttons ④ and the vehicle current collector enable signal ⑥ state diagnosis shown in figure 2, When the logic is satisfied, a current collector lifting instruction is sent; When the network fails, the EMTS on the driver's desk is driven to the bypass position, the emergency traction mode is activated to press the CSRPB liter boot button on the driver's desk, the hard-wire instruction is sent to the LCU, the LCU sends the current collector lifting instruction in combination with the vehicle zero speed ①, the vehicle activation ③, the soft-reducing button ④ and the state diagnosis of the whole vehicle current collector enabling signal ⑥, And the self rescue of the vehicle under the condition of network faults is ensured. When one of the vehicle current collectors cannot be lifted up due to faults, a fault isolation soft button on the HMI screen can be operated to isolate the vehicle current collector from being controlled by the whole vehicle lifting instruction, and the HMI screen triggers the current collector lowering instruction of the unit.
As shown in fig. 3, the boot-lowering control method is as follows:
When the current collector soft-lowering button ④ on the driver display screen HMI triggers and activates (the boot-lifting instruction can not interrupt the boot-lifting instruction), the LCU receives the boot-lifting soft-lowering button ④ to trigger and activate the instruction, receives the vehicle zero speed ① forwarded by the TCMS and the local cab activates ③ state signal, the LCU logic diagnoses ⑦ boot-lifting condition to be met, the LCU transmits the boot-lifting instruction to the whole vehicle in a MVB data stream mode, the LCU of the whole vehicle receives the current collector boot-lifting instruction, sets the boot-lifting instruction at a high level, transmits the boot-lifting instruction to the TCMS, cuts off auxiliary loads, delays the power of the 24 current collector boot-lifting electromagnetic valves of the whole vehicle for 5 seconds after 1 second time delay, or sets the command to cut off the air path at a low level after receiving the in-position-lifting signals sent by the 24 current collector position detection switches of the whole vehicle. The whole car falls to the boots in place. When the network is black or the communication is faulty, a spare CSLPB boot descending button on the driver's desk can be operated, a hard wire instruction is sent to the LCU, and the LCU sends a current collector descending instruction by combining a whole vehicle current collector enabling signal.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (5)
1. An LCU three-rail current-collecting control method based on subway vehicles comprises a lift shoe control method and a lift shoe control method,
The shoe lifting control method comprises the following steps:
After the driver cab at the local end is activated, when a soft rising button of a current collector on a driver display screen (HMI) is triggered and activated and a soft falling button is not triggered, after an LCU receives a soft triggering activation instruction forwarded by a TCMS, a vehicle zero-speed signal and a current collector enabling signal are detected by the LCU at the same time, the LCU logically diagnoses that a lift boot condition is met, the LCU transmits the lift boot instruction to the whole vehicle, after the lift boot soft triggering instruction is activated, the lift boot instruction is set to a high level, a lift boot electromagnetic valve of the whole vehicle current collector is powered on and kept, or a lift instruction is set to a low level after a lift boot in place signal sent by a position detection switch of the whole vehicle current collector is received to cut off a gas circuit, and the lift boot of the whole vehicle is in place;
the boot descending control method comprises the following steps:
When a soft-falling button of a current collector on a driver display screen (HMI) is triggered and activated, a vehicle zero-speed signal is generated, and a driver cab at the local end is activated, an LCU receives the information forwarded by a TCMS, the LCU logically diagnoses that the boot-falling condition is met, the LCU transmits a boot-falling instruction to the whole vehicle, the whole vehicle LCU receives the boot-falling instruction of the current collector, then sets the boot-falling instruction to a high level and transmits the boot-falling instruction to the TCMS, auxiliary loads are cut off, a solenoid valve of the whole vehicle current collector is powered on and kept, or a low level cut-off gas circuit is set by the boot-falling instruction after receiving a boot-falling signal sent by a position detection switch of the whole vehicle current collector, so that the whole vehicle is in place;
In the boot lifting control method, when a display screen of a driver is black, a standby boot lifting button (CSRPB) on a driver's desk is operated, a hard wire instruction is sent to an LCU, the LCU is used for diagnosing by combining the states of a vehicle zero-speed signal, a cab activation signal, a soft-reducing button and a whole-vehicle current collector enabling signal, and the current collector lifting instruction is sent when logic is met.
2. The LCU three-rail current-collecting control method based on metro vehicles according to claim 1, wherein: in the boot lifting control method, when a network fails, a standby mode switch (EMTS) is driven to a bypass position, an emergency traction mode is activated to press a boot lifting button (CSRPB), a hard wire instruction is sent to an LCU, the LCU combines state diagnosis of a vehicle zero speed, a cab activation signal, a soft-reducing button and a whole vehicle current collector enabling signal, and a current collector lifting instruction is sent when logic is met, so that self rescue of the vehicle under the condition of the network failure is ensured.
3. The LCU three-rail current-collecting control method based on metro vehicles according to claim 1, wherein: in the boot lifting control method, when one of the vehicle current collectors cannot be lifted due to failure, a driver operates a failure isolation soft button on a driver display screen (HMI) to isolate the vehicle current collector from being controlled by a whole vehicle lifting instruction, and the driver display screen (HMI) triggers a current collector lowering instruction of the unit.
4. The LCU three-rail current-collecting control method based on metro vehicles according to claim 1, wherein: in the boot descending control method, under the condition of network black screen or communication failure, a standby boot descending button (CSLPB) on a driver's desk is operated, a hard wire instruction is sent to an LCU, and the LCU sends a current collector descending instruction by combining a whole vehicle current collector enabling signal.
5. The LCU three-rail current-collecting control method based on metro vehicles according to claim 1, wherein: the LCU sends the boot lifting instruction and the boot descending instruction to the whole vehicle in an MVB data stream 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 CN112248816A (en) | 2021-01-22 |
| CN112248816B true CN112248816B (en) | 2024-06-25 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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