CN109878489B - Command conversion control circuit for loopback or rescue of motor train unit - Google Patents
Command conversion control circuit for loopback or rescue of motor train unit Download PDFInfo
- Publication number
- CN109878489B CN109878489B CN201910284554.1A CN201910284554A CN109878489B CN 109878489 B CN109878489 B CN 109878489B CN 201910284554 A CN201910284554 A CN 201910284554A CN 109878489 B CN109878489 B CN 109878489B
- Authority
- CN
- China
- Prior art keywords
- circuit
- relay
- contact
- electronic control
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Braking Systems And Boosters (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a command conversion control circuit for motor train unit loopback or rescue, wherein an electronic control unit is connected with a relay D, a mode knob is arranged on a circuit 1, a rescued contact is connected to the electronic control unit through a normally open contact of a main control of a driver cab, a rescue contact is connected to the positive electrode of a power supply of the electronic control unit through a normally closed contact of the main control of the driver cab, a solenoid valve A is connected in series with the rescue contact, a relay A is connected in series with a normal contact, a normally closed contact of the relay A and a normally open contact of the relay B are arranged on a circuit 2, a solenoid valve B is connected in series with the circuit 2, a circuit 3 is an emergency braking command line, normally open contacts of the relay B and the relay C are connected in series on the circuit 3, a circuit 4 is an emergency braking loop line, and a relay C. The invention realizes the mutual rescue function between the single-tube motor train unit and the double-tube brake train unit.
Description
Technical Field
The invention relates to the technical field of control circuits of rail vehicles, in particular to a command conversion control circuit for returning or rescuing of a motor train unit.
Background
The domestic motor train unit has two different air brake control modes: one is a single-pipe braking system, namely a straight-through type electric control braking control system with air braking controlled by a single main air pipe; the other type is a double-pipe braking system, namely an automatic air braking control system which can realize pure air braking through a train pipe besides a straight-through type electric control braking control system with single main air pipe air supply control.
When the motor train unit is subjected to fireless loopback, fault rescue and the like, a locomotive or other motor train units need to carry out loopback or rescue (hereinafter referred to as rescued) on the motor train unit; or when other motor train units have faults, the motor train unit carries out rescue (hereinafter referred to as rescue).
At present, a single-control motor train unit rescue function device and a rescued function device are two sets of independent control circuits.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an integrated rescue and rescued function control circuit, which is a motor train unit feedback or rescue instruction conversion control circuit for realizing the mutual rescue function between a single-tube motor train unit and a double-tube brake train unit.
The purpose of the invention is realized by the following technical scheme.
The electronic control unit outputs an air pressure (BP pressure for short) signal of a train pipe to a brake controller (EBCU for short), the electronic control unit is connected with a relay D and comprises four circuits which are respectively marked as a circuit 1, a circuit 2, a circuit 3 and a circuit 4, a mode knob is arranged on the circuit 1 and comprises a rescued contact, a rescue contact and a normal contact, the rescued contact is connected to the electronic control unit through a normally open contact of the master control of the driver cab of the motor train unit and used for identifying a rescued/rescued mode, and the rescue contact is connected to a power supply positive electrode of the electronic control unit through the normally closed contact of the master control of the driver cab of the motor train unit. The rescue contact is connected in series with an electromagnetic valve A which is used for realizing the gas circuit switching between a rescue mode and a rescued mode through an electric command of vehicle mode switching, the normal contact is connected in series with a relay A, the circuit 2 is provided with a normally closed contact of the relay A, the circuit 4 is provided with a normally open contact of the relay A, the circuit 2 is connected with an electromagnetic valve B in series, the electromagnetic valve B is controlled by a vehicle emergency braking loop and is used for rapid exhaust during emergency braking, the circuit 3 is an emergency braking instruction line, the relay B is connected in series on the circuit 3, the normally open contact of the relay B is arranged on the circuit 2, the circuit 4 is an emergency brake loop wire, the relay C is connected in series on the circuit 4, the normally open contact of the relay C is arranged on the circuit 3, the EBCU is connected with a relay E, and a normally closed contact of the relay E is arranged on the electronic control unit.
And the electronic control unit is provided with a pressure sensor, and the pressure sensor is used for acquiring the air pressure of the train pipe and inputting a pressure signal to the electronic control unit.
And the electronic control unit is provided with an electromagnetic valve C, and the electromagnetic valve C controls and outputs corresponding train pipe air pressure according to an electric instruction of the electronic control unit.
And the electronic control unit is connected with a brake level relay.
Compared with the prior art, the invention has the advantages that:
(1) through the design of an electric loop, the mutual rescue between the single-tube motor train unit and the double-tube brake train unit is realized, and the integration level is high.
(2) The rescued/rescue mode switching is electrically controlled by the vehicle, so that the automatic switching between the rescue function and the rescued function is realized;
(3) the emergency electromagnetic valve is controlled by the electrical logic of the vehicle, so that the running reliability of the vehicle is improved;
(4) under the rescue and rescue mode, the mutual transmission of emergency braking instructions between the rescue vehicle and the rescued vehicle can be realized, and the method specifically comprises the following steps:
when being rescued: when the rescued motor train unit triggers emergency braking, the emergency braking can be synchronously transmitted to the locomotive or the motor train unit for implementing the rescue; when the locomotive or the rescue motor train unit triggers emergency braking, the rescued motor train unit can also synchronously apply the emergency braking.
During rescue: when the rescued motor train unit triggers emergency braking, the emergency braking can be synchronously transmitted to the rescued motor train unit; when the rescue motor train unit triggers emergency braking, the rescued motor train unit can also synchronously apply the emergency braking.
(5) The vehicle emergency brake system realizes the detection of vehicle rescued/rescue command abnormity, emergency brake abnormity and train pipe pressure abnormity, and transmits the fault to the vehicle monitoring equipment.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples.
As shown in fig. 1, the command conversion control circuit for motor train unit loopback or rescue comprises an electronic control unit, wherein the electronic control unit outputs an air pressure (BP pressure for short) signal of a train pipe to a brake controller (EBCU for short), the electronic control unit is connected with a relay D and comprises four circuits which are respectively marked as a circuit 1, a circuit 2, a circuit 3 and a circuit 4, the circuit 1 is provided with a mode knob, the mode knob comprises a rescued contact, a rescue contact and a normal contact, the rescued contact is connected to the electronic control unit through a normally open contact of the main control of the driver cab for recognition of a rescued/rescue mode, and the rescue contact is connected to a power positive electrode of the electronic control unit through the normally closed contact of the main control of the driver cab.
The rescue contact is connected in series with an electromagnetic valve A which is used for realizing the gas circuit switching between a rescue mode and a rescued mode through an electric command of vehicle mode switching, the normal contact is connected in series with a relay A, the circuit 2 is provided with a normally closed contact of the relay A, the circuit 4 is provided with a normally open contact of the relay A, the circuit 2 is connected with an electromagnetic valve B in series, the electromagnetic valve B is controlled by a vehicle emergency braking loop and is used for rapid exhaust during emergency braking, the circuit 3 is an emergency braking instruction line, the relay B is connected in series on the circuit 3, the normally open contact of the relay B is arranged on the circuit 2, the circuit 4 is an emergency brake loop wire, the relay C is connected in series on the circuit 4, the normally open contact of the relay C is arranged on the circuit 3, the EBCU is connected with a relay E, and a normally closed contact of the relay E is arranged on the electronic control unit.
And the electronic control unit is provided with a pressure sensor, and the pressure sensor is used for acquiring the air pressure of the train pipe and inputting a pressure signal to the electronic control unit.
And the electronic control unit is provided with an electromagnetic valve C, and the electromagnetic valve C controls and outputs corresponding train pipe air pressure according to an electric instruction of the electronic control unit.
The electronic control unit is connected with a brake level relay (such as level relays 1-7 in figure 1).
The utility model provides a EMUs loopback rescue and use instruction conversion equipment, includes the electronic control unit, the input of electronic control unit is connected with pressure sensor, the output of electronic control unit is connected with the electricity and air-to-air change valve, the electricity and air-to-air change valve is connected with total tuber pipe and relay valve respectively, the relay valve is connected with mode diverter valve and total tuber pipe respectively, the mode diverter valve is connected with train pipe and total tuber pipe respectively, urgent exhaust valve is connected with total tuber pipe and train pipe respectively, be connected with the reservoir on the train pipe, the reservoir is connected with pressure sensor, pressure sensor is used for gathering the pressure of train pipe to input pressure signal to the electronic control unit.
Be equipped with between total tuber pipe and the electricity air-to-air conversion valve and cut the cock, be equipped with two on the train pipe and cut the cock, two are cut and are connected with the reservoir between the cock, be equipped with the drainage cock on the reservoir, cut the cock in the device and be used for when device inner part trouble, cut BP pressure gas circuit.
And a dust filter is arranged between the cut-off cock and the electro-pneumatic conversion valve and used for filtering and drying the pressure air of the vehicle main air pipe.
The relay valve is respectively connected with the mode switching valve and the main air pipe through a throttle bolt, and the throttle bolt is arranged between the air cylinder and the train pipe.
A pressure test port is arranged between the electro-pneumatic conversion valve and the relay valve, and a pressure test port is arranged at the interface of the air reservoir and the train pipe.
An electronic control unit: when the emergency braking system is rescued, a service braking stage position ((such as stage position relays 1-7 in figure 1) is calculated and output according to a BP pressure value of a train pipe collected by a pressure sensor, the service braking stage position relays are powered on, when the BP pressure is abnormally reduced, a relay D is powered off, an emergency braking loop is disconnected at the same time, an emergency braking instruction line is powered off to trigger the emergency braking of the whole train, a service braking instruction (such as 1-7 in figure 1) of the train is received during rescue, the BP pressure is controlled and output, the equivalent pressure reduction is implemented, faults of components in the device and self control can be detected, and the abnormity of a mode switching valve instruction and the emergency braking instruction can be detected.
Conditions of abnormal BP pressure reduction: when the pressure of BP reaches above a threshold value A (0 < the threshold value A <600 kPa) or is in operation (such as the speed is above 5 km/h) when the vehicle is at rest (such as the speed is below 5 km/h), the pressure of BP is reduced to be below a threshold value B (0 < the threshold value B <500 kPa) when non-emergency braking is met, wherein after a speed signal is acquired by an EBCU, the power-on and power-off states of a relay E are controlled, and the electronic control unit is informed of the power-off and power-on states of a normally closed contact of the relay E.
The working principle of the instruction conversion control circuit is as follows:
rescue/rescue mode identification: a 'rescued mode' signal line of the electronic control unit is connected with a 'main control' normally open contact of the cab of the vehicle in series, the vehicle is identified as a rescued mode when in main control, and the vehicle is identified as a rescue mode when not in main control.
The normally closed contact of the main control of the driver cab of the vehicle is connected in series in the power supply plus circuit in the rescue mode, and the device is powered on only when the vehicle is not in the main control in the rescue mode.
When the device is electrified, the mode knob of the circuit 1 is in the rescue position or the rescued position, the relay A is electrified, the normally closed contact in the circuit 2 is closed, and the normally open contact in the circuit 4 is disconnected.
When the device is electrified, the electronic control unit controls the relay D to be electrified, the normally open contact in the circuit 4 is closed, the relay C is electrified, the normally open contact of the relay C in the circuit 3 is closed, the relay B is electrified, the contact of the relay B in the circuit 2 is closed, and the circuit 2 is electrified.
When the device loses power, the mode knob of the circuit 1 is in a normal position, the relay A is electrified, the normally open contact of the relay A in the circuit 4 is closed, and the contact of the relay D in the circuit 4 is bypassed.
1. The rescued mode comprises the following steps:
(1) when the 'mode knob' of the circuit 1 is turned to the 'rescued' position, the electronic control unit is powered on and simultaneously recognizes the rescued mode.
(2) And (3) when the electromagnetic valve A is powered off, the electronic control unit acquires the state of the electromagnetic valve A, and compares the state with the identified mode in the step (1) to detect and record the abnormity of the mode switching instruction.
(3) The electronic control unit collects the pressure value of the BP pipe through the pressure sensor, and calculates and outputs the electric instruction of the service brake level (such as level 1-level 7 of figure 1).
(4) When the electronic control unit judges that the BP pressure is abnormally reduced or the motor train unit/locomotive is rescued to trigger emergency braking, the relay D loses power, so that a contact of the relay D in the circuit 4 is disconnected, an emergency braking loop is disconnected, the relay C loses power, so that a contact of the relay C in the circuit 3 is disconnected, an emergency braking instruction line of the motor train unit loses power, and the whole-train emergency braking of the motor train unit is triggered.
(5) When the emergency brake is applied to the locomotive group, the circuit 3 is powered off, the relay B is powered off, the contact of the relay B in the circuit 2 is disconnected, the circuit 2 is powered off, the electromagnetic valve B conducts rapid air exhaust, and the emergency brake signal is transmitted to the locomotive or the rescue motor train group through the reduced BP pressure.
(6) The electronic control unit detects and records an abnormality of the emergency brake command based on the received states of the circuit 3 (emergency brake command line) and the circuit 2.
2. A rescue mode:
(1) the 'mode knob' of the circuit 1 is screwed to the 'rescue' position, the electronic control unit is powered on, and the electronic control unit is identified as a rescue mode.
(2) And (3) electrifying the electromagnetic valve A, collecting the state of the electromagnetic valve A by the electronic control unit, and simultaneously comparing the state with the mode identified in the step (1) to detect and record the abnormity of the mode switching instruction.
(3) The electronic control unit receives the electric command of the service brake (such as level 1-level 7 in figure 1) of the vehicle, calculates and controls the electromagnetic valve C to output BP pressure to supply and exhaust air to the rescued vehicle.
(4) The electronic control unit acquires a BP pressure value through the pressure sensor, when the electronic control unit judges that the BP pressure is abnormally reduced or the rescued vehicle triggers emergency braking, the relay D loses power, so that a contact of the relay D in the circuit 4 is disconnected, an emergency braking loop line is disconnected, the relay C loses power, the relay C is disconnected at a contact of the circuit 3, and the emergency braking instruction line of the locomotive group loses power, so that the emergency braking of the whole train of the locomotive group is triggered.
(6) When the motor train unit applies emergency braking, the circuit 3 is powered off, the relay B is powered off, the contact of the relay B in the circuit 2 is disconnected, the circuit 2 is powered off, the electromagnetic valve B conducts rapid air exhaust, and emergency braking signals are transmitted to the rescued motor train unit through the reduced BP pressure.
(7) The electronic control unit detects and records an abnormality of the emergency brake command based on the received states of the circuit 3 (emergency brake command line) and the circuit 2.
3. Fault diagnosis
And when the BP pressure is abnormally reduced, the control loop part is in fault, the rescue/rescued mode is abnormal and the emergency braking instruction is abnormal, sending a fault signal to the vehicle.
4. BP pressure signal
The electronic control unit sends the analog quantity signal to the vehicle for display.
Claims (4)
1. A command conversion control circuit for returning or rescuing of a motor train unit comprises an electronic control unit, wherein the electronic control unit outputs an air pressure signal of a train pipe to a brake controller, and is characterized in that the electronic control unit is connected with a relay D and comprises four circuits which are respectively marked as a circuit 1, a circuit 2, a circuit 3 and a circuit 4, the circuit 1 is provided with a mode knob, the mode knob comprises a rescued contact, a rescuing contact and a normal contact, the rescued contact is connected to the electronic control unit through a normally open contact of a main control of a driver cab of the motor train unit and is used for identifying a rescued/rescued mode, the rescuing contact is connected to a positive power supply of the electronic control unit through the normally closed contact of the main control of the driver cab of the motor train unit, the rescuing contact is connected with an electromagnetic valve A in series, and the electromagnetic valve A is used for realizing the air circuit switching between the rescuing mode and the, normal contact is established ties there is relay A, be equipped with relay A's normally closed contact on the circuit 2, be equipped with relay A's normally open contact on the circuit 4, circuit 2 is established ties there is solenoid valve B, solenoid valve B is by vehicle emergency braking return circuit control, be used for the quick exhaust when emergency braking, circuit 3 is emergency braking instruction line, it has relay B to establish ties on the circuit 3, be equipped with relay B's normally open contact on the circuit 2, circuit 4 is the emergency braking loop line, it has relay C to establish ties on the circuit 4, be equipped with relay C's normally open contact on the circuit 3, the braking controller is connected with relay E, be equipped with relay E's normally closed contact on the electronic control unit.
2. The command conversion control circuit for motor train unit loopback or rescue as claimed in claim 1, wherein the electronic control unit is provided with a pressure sensor for collecting air pressure of a train pipe and inputting a pressure signal to the electronic control unit.
3. The command conversion control circuit for motor train unit loopback or rescue as claimed in claim 1 or 2, wherein the electronic control unit is provided with an electromagnetic valve C, and the electromagnetic valve C controls and outputs corresponding train pipe air pressure according to an electrical command of the electronic control unit.
4. The command conversion control circuit for motor train unit loopback or rescue as claimed in claim 3, wherein the electronic control unit is connected with a brake level relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910284554.1A CN109878489B (en) | 2019-04-10 | 2019-04-10 | Command conversion control circuit for loopback or rescue of motor train unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910284554.1A CN109878489B (en) | 2019-04-10 | 2019-04-10 | Command conversion control circuit for loopback or rescue of motor train unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109878489A CN109878489A (en) | 2019-06-14 |
| CN109878489B true CN109878489B (en) | 2021-06-29 |
Family
ID=66936754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910284554.1A Active CN109878489B (en) | 2019-04-10 | 2019-04-10 | Command conversion control circuit for loopback or rescue of motor train unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109878489B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3130726A1 (en) * | 2021-12-17 | 2023-06-23 | Alstom Holdings | Railway vehicle and associated towing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110884476A (en) * | 2019-12-02 | 2020-03-17 | 中车长春轨道客车股份有限公司 | Motor train unit loopback rescue brake instruction control system |
| CN116039679A (en) * | 2022-12-07 | 2023-05-02 | 中车大连机车车辆有限公司 | Braking system and method for automatic switching between train pipe control and microcomputer control |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975738A (en) * | 2012-05-31 | 2013-03-20 | 南京浦镇海泰制动设备有限公司 | High speed train rescue conversion device |
| CN104955705A (en) * | 2013-01-30 | 2015-09-30 | 纳博特斯克有限公司 | Railroad vehicle brake device, railroad vehicle, and railroad vehicle formation |
| CN106428102A (en) * | 2016-12-06 | 2017-02-22 | 中车长春轨道客车股份有限公司 | Compressed air control and distribution device for return and rescue of motor train units |
| CN107235041A (en) * | 2017-06-16 | 2017-10-10 | 中车长春轨道客车股份有限公司 | Rail vehicle rescues brake hard synchronization control circuit and control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9481348B2 (en) * | 2012-09-20 | 2016-11-01 | Wabtec Holding Corp. | System and method for addressing a pneumatic emergency in a helper locomotive |
-
2019
- 2019-04-10 CN CN201910284554.1A patent/CN109878489B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975738A (en) * | 2012-05-31 | 2013-03-20 | 南京浦镇海泰制动设备有限公司 | High speed train rescue conversion device |
| CN104955705A (en) * | 2013-01-30 | 2015-09-30 | 纳博特斯克有限公司 | Railroad vehicle brake device, railroad vehicle, and railroad vehicle formation |
| CN106428102A (en) * | 2016-12-06 | 2017-02-22 | 中车长春轨道客车股份有限公司 | Compressed air control and distribution device for return and rescue of motor train units |
| CN107235041A (en) * | 2017-06-16 | 2017-10-10 | 中车长春轨道客车股份有限公司 | Rail vehicle rescues brake hard synchronization control circuit and control method |
Non-Patent Citations (1)
| Title |
|---|
| 高速列车制动救援转换装置;王红旗;《铁道车辆》;20150630;第53卷(第6期);29-32 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3130726A1 (en) * | 2021-12-17 | 2023-06-23 | Alstom Holdings | Railway vehicle and associated towing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109878489A (en) | 2019-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109677385B (en) | EMUs loopback rescue and use instruction conversion equipment | |
| US11180128B2 (en) | System and method for controlling centralized brake of vehicles, a motor train set brake control system | |
| CN109878489B (en) | Command conversion control circuit for loopback or rescue of motor train unit | |
| CN110667638B (en) | Air brake control unit, brake control system and brake control method | |
| CN104118420B (en) | A kind of vacuum boosting braking system for pure electric vehicle method for diagnosing faults | |
| CN109703595B (en) | Double-mode rescue conversion device and method for railway vehicle and vehicle | |
| CN102264586B (en) | Braking unit for train comprising plurality of wagons for goods transportation | |
| CN106627650B (en) | A kind of long-range shielding system of parking brake and control method | |
| US20080143178A1 (en) | Braking Device for a Rail Vehicle | |
| CN109703596B (en) | Double-mode rescue conversion device and method for railway vehicle and vehicle | |
| CN106080650A (en) | A kind of gas brak control unit used for rail vehicle | |
| CN109435936A (en) | A kind of double-channel data transmission train braking monitoring system | |
| CN112046462B (en) | Rail transit vehicle parking brake and brake isolation detection method and system and vehicle | |
| CN113859213B (en) | Method for reliably outputting brake release application state of rail transit vehicle | |
| CN109159779A (en) | A kind of rail vehicle and its braking method, system | |
| CN109080611B (en) | Parking brake control device capable of realizing remote relief in rescue mode | |
| CN110219916B (en) | Monitoring method and system for switching working states of clutch and brake | |
| CN207416810U (en) | Vehicle parking control device and the safety guard for vehicle parking | |
| CN212473427U (en) | Air brake isolation device of railway vehicle and control circuit of emergency brake interlocking | |
| CN111717186B (en) | Unpowered loopback state monitoring system for metro vehicle | |
| CN206615227U (en) | A kind of long-range shielding system of parking brake | |
| CN113771826B (en) | Motor train unit parking brake redundancy monitoring device and monitoring method | |
| CN113022649B (en) | PWM encoder and encoding method | |
| CN212473430U (en) | Monitoring system for unpowered loopback state of metro vehicle | |
| CN210971035U (en) | Train system and train |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |