CN209257887U - A kind of train draft control unit - Google Patents
A kind of train draft control unit Download PDFInfo
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- CN209257887U CN209257887U CN201822079494.3U CN201822079494U CN209257887U CN 209257887 U CN209257887 U CN 209257887U CN 201822079494 U CN201822079494 U CN 201822079494U CN 209257887 U CN209257887 U CN 209257887U
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- control unit
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- motor control
- motor
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Abstract
The utility model discloses a kind of train draft control units, including digital signal acquiring unit, temperature/pressure signal acquisition unit, main control unit, fan control unit, motor control class signal acquisition unit, motor control unit, pulses switch processing unit, data storage cell, power supply unit, system bus, internal high-speed bus, PTU unit, main control unit by system bus respectively with digital signal acquiring unit, temperature/pressure signal acquisition unit, fan control unit, motor control class signal acquisition unit, motor control unit, pulses switch processing unit is attached, motor control class signal acquisition unit establishes connection by internal high-speed bus with motor control unit, rigid line connection is established between motor control unit and pulses switch processing unit.It effectively improves the timeliness of fault detection and error protection in application, the traction of train traction system/electric braking automatic closed loop control may be implemented.
Description
Technical field
The utility model relates to train traction control technology fields, and in particular to a kind of train draft control unit.
Background technique
Train draft control unit (Drive Control Unit), abbreviation DCU is the important of train traction transmission system
Component part is, it can be achieved that control to traction invertor, brake chopper, i.e. master of the reception from train central control unit are disconnected
The feedback signal of the instruction such as closure, direction, traction, braking and each sensor, output traction main circuit switch controls signal, to leading
Draw main circuit to be controlled, torque and power needed for making motor output, and electric braking information and the information that dallies/slide are transmitted
To brak control unit.Meanwhile traction control unit is also equipped with comprehensive Fault diagnosing and protecting function, takes hardware and software
Combined Protection measure guarantees safe train operation, is quickly and effectively protected to traction main circuit.As the big of trailer system
Brain, the software and hardware core technology of DCU are monopolized by international rail traffic giant for a long time, in recent years, the production domesticization of traction control unit
Paces are significantly accelerated, and existing part manufacturer has developed the control equipment for having independent intellectual property rights at present, but these are controlled
Equipment is generally existing poor to the control performance of trailer system；The timeliness of trailer system fault detection and error protection is not high；System
The problems such as design pattern of uniting is single, can not carry out the fractionation assembling of functional module according to actual needs.
Utility model content
The utility model aims at the problems existing in the prior art, and provides a kind of train draft control units, in application, can
To realize the traction of train traction system/electric braking automatic closed loop control, effectively improve fault detection and error protection when
Effect property, while the fractionation of functional unit can also be carried out according to demand in practical applications.
The utility model is achieved through the following technical solutions:
A kind of train draft control unit, including digital signal acquiring unit, temperature/pressure signal acquisition unit, master control
Unit, fan control unit, motor control class signal acquisition unit, motor control unit, pulses switch processing unit, data are deposited
Storage unit, power supply unit, system bus, internal high-speed bus, PTU unit, PTU unit and main control unit establish direct signal pair
Connect, main control unit by system bus respectively with digital signal acquiring unit, temperature/pressure signal acquisition unit, fan control
Unit, motor control class signal acquisition unit, motor control unit, pulses switch processing unit are attached, and data storage is single
It is connected between member and main control unit and motor control unit by CAN bus, motor control class signal acquisition unit and motor control
Unit processed establishes connection by internal high-speed bus, and rigid line company is established between motor control unit and pulses switch processing unit
It connects, power supply unit is the power supply of each functional unit.
Preferably, the digital signal acquiring unit is equipped with digital signal input, output port, leads for realizing with train
Draw the acquisition and transmission for controlling relevant digital signal, is communicated by system bus with main control unit.
Preferably, the temperature/pressure signal acquisition unit and switchs to count for realizing the acquisition of temperature/pressure signal
Word signal is sent to main control unit by system bus.
Preferably, the main control unit is for realizing telecommunication management, logic control, error protection and status monitoring, meanwhile,
It is equipped with MVB communication interface, Ethernet interface and serial ports, is realized and train-installed control network by MVB communication interface
Communication function is realized by Ethernet interface and serial ports and is docked with PTU unit.
Preferably, the fan control unit is for realizing the fan control in train system, and by fan failure information
It is transferred to main control unit.
Preferably, the motor control class signal acquisition unit is used to acquire the mould for directly participating in train traction motor control
Quasi- and digital signal.
Preferably, the motor control unit is for realizing the management of internal high-speed bus and the control of train traction motor
System, and IGBT control pulse is generated, IGBT control pulse is transferred to by pulses switch processing unit by rigid line connection.
Preferably, the pulses switch processing unit for realizing the IGBT control level conversion of pulse, fault detection and
Quickly protection.
Preferably, the control variable that the data storage cell generates main control unit and motor control unit is deposited
Storage.
Preferably, the PTU unit be used for carry out main control unit real-time monitoring signal and waveform show, parameter testing,
Historical data analysis and program downloading.
The utility model has the following advantages and benefits:
1, a kind of train draft control unit of the utility model can be used for traction/electric braking of train traction system certainly
Dynamicization closed-loop control.
2, a kind of train draft control unit of the utility model, it can be ensured that train traction system failure detection and failure are protected
The real-time and validity of shield improve the security reliability of its operation.
3, a kind of train draft control unit of the utility model is connected using different buses between each functional unit
It connects, to meet different signal transmission demands for control and subsequent Function Extension.
4. a kind of train draft control unit of the utility model, each functional unit is that the module based on function divides, practical
Functional module can be split according to demand in, such as realize same control function or multiple functions using multiple boards
Concentrate on realization, the demand for control to meet different trains in same board.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the structural block diagram of the utility model；
A case study on implementation structural block diagram in Fig. 2 implementation column.
Label and corresponding parts title in attached drawing:
1- digital signal acquiring unit, 2- temperature/pressure signal acquisition unit, 3- main control unit, 4- fan control unit,
5- motor control class signal acquisition unit, 6- motor control unit, 7- pulses switch processing unit, 8- data storage cell, 9-
Power supply unit, 10- system bus, the inside 11- high-speed bus, 12-PTU unit.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1, a kind of train draft control unit, including digital signal acquiring unit 1, temperature/pressure signal are adopted
Collect unit 2, main control unit 3, fan control unit 4, motor control class signal acquisition unit 5, motor control unit 6, pulse turn
Processing unit 7, data storage cell 8, power supply unit 9, system bus 10, internal high-speed bus 11, PTU unit 12 are changed, PTU is mono-
First (portable state monitoring unit) 12 is established direct signal with main control unit 3 and is docked, and main control unit 3 is divided by system bus 10
Not with digital signal acquiring unit 1, temperature/pressure signal acquisition unit 2, fan control unit 4, motor control class signal acquisition
Unit 5, motor control unit 6, pulses switch processing unit 7 are attached, data storage cell 8 and main control unit 3 and motor
It is connected between control unit 6 by CAN bus, motor control class signal acquisition unit 5 and motor control unit 6 are fast by inside
Fast bus 11 establishes connection, and rigid line connection is established between motor control unit 6 and pulses switch processing unit 7, and power supply unit 9 is
Each functional unit power supply, in which:
Digital signal acquiring unit 1 is equipped with digital signal input, output port, for realizing related to train traction control
Digital signal acquisition and transmission, communicated with main control unit 3 by system bus 10.
Temperature/pressure signal acquisition unit 2 and switchs to digital signal and passes through for realizing the acquisition of temperature/pressure signal
System bus 10 is sent to main control unit 3.
Main control unit 3 for realizing telecommunication management, logic control, error protection and status monitoring, meanwhile, be equipped with MVB
Communication interface, Ethernet interface and serial ports realize the communication function with train-installed control network by MVB communication interface,
It is realized by Ethernet interface and serial ports and is docked with PTU unit.
Fan failure information is transferred to master control for realizing the fan control in train system by fan control unit 4
Unit 3.
Motor control class signal acquisition unit 5 is used to acquire the simulation for directly participating in train traction motor control and number letter
Number.
Motor control unit 6 generates for realizing the management of internal high-speed bus 11 and the control of train traction motor
IGBT controls pulse, and IGBT control pulse is transferred to pulses switch processing unit 7 by rigid line connection.
Pulses switch processing unit 7 is for realizing the level conversion of IGBT control pulse, fault detection and quickly protection.
The control variable that data storage cell 8 generates main control unit 3 and motor control unit 6 stores.
PTU unit be used for carry out main control unit 3 real-time monitoring signal and waveform show, parameter testing, historical data divide
Analysis and program downloading.
Embodiment 2
As shown in Fig. 2, by digital signal acquiring unit 1, temperature/pressure signal acquisition unit 2, main control unit 3, fan control
Unit 4 processed, motor control class signal acquisition unit 5, motor control unit 6, pulses switch processing unit 7, data storage cell 8
Module division is carried out according to actual needs with PTU unit 12, and multiple corresponding functional cards are made to realize train traction control
Function processed, in which:
Digital I/O board, auxiliary control panel, motor signal plate, the outbound data analog input card that analog signal plate is system, point
Not Shi Xian digital signal acquiring, temperature/pressure signal acquisition, electric braking force, handle level and speed signal acquisition, main circuit electricity
Current voltage collecting sensor signal, and collected control signal is sent to master control borad and motor control panel by bus, it is
Train traction control provides input.Above-mentioned board is all made of two pieces of FPGA and realizes, one piece is used for board telecommunication management, and one piece is used for
Board control.
Master control borad and motor control panel are that the bus management of system and main Control card, master control borad realize system bus pipe
Reason, system external communication and main circuit logic control and error protection, motor control panel realize internal high-speed bus management and
Motor control algorithms.Two boards card realizes bus management by FPGA, and wherein master control borad selects IMAX6 as main control chip,
Motor control panel is using TMS320F28335PGFA+FPGA as control chip.
In terms of bus design, this example selects the pci bus of 33MHz, 32bit as system bus, transparent by PCI
Bridge realizes device extension to meet DCU demand for control.Simultaneously in order to meet the needs of motor control algorithms closed-loop control performance, select
It takes EBI bus as independent internal high-speed bus, realizes that the signal of motor control panel, motor signal plate and analog signal plate passes
It is defeated.In addition, this example has also reserved CAN bus, it is managed by master control borad, is convenient for subsequent expansion.
System control output is completed by digital I/O board, motor signal plate and pulses switch plate, is realized to main circuit relay
Device control, electric braking force feedback and IGBT drive control.Wherein pulses switch plate is realized using two pieces of FPGA, and one piece is used for board
Telecommunication management, one piece controls for board.
This example has perfect failure protection function, is mainly reflected in the following aspects:
1, fault detection and protection are mainly realized by master control borad, and fault type includes that voltage and current class failure, main circuit connect
Tentaculum class failure, communication class failure, cooling system failure, output tractive force/brake force deficiency failure etc..
2, in order to ensure the real-time and validity of voltage and current class fault detection, system carries out electricity by analog signal plate
Current voltage class fault detection, and by fault code be sent to master control borad carry out error protection, if while analog signal plate detect
Serious over-voltage over-current protection, then the practicable hardware of analog signal plate is quickly protected, and direct locking pulse is to ensure system safety.
3, pulse blocking function is the key function that DCU carries out failure and error protection, to improve security of system and can
By property, pulse blocking is realized using rigid line control, and every board is provided with independent pulse blocking switch, while master control borad can
The control switched to other board pulse blockings is realized by bus.Rigid line pulse blocking follows fault-safety principle, and use is low
Level representative pulse blocking order is effective, and each board pulse blocking exploitation connects in a series arrangement, i.e., the pulse of any board
Effectively, then system exports pulse blocking order for block order.
This example has MVB and the Industrial Ethernet bus based on TRDP, can directly connect with Train Communication Network, realizes
Train communication based on MVB or Industrial Ethernet, and two kinds of communication functions are completely redundant.
This example has easily debugging and test interface, and wherein master control borad has serial ports and Ethernet interface, motor control
Making sheet has serial ports and CAN debugging interface, and debugging board has Ethernet and USB interface.System can cooperate Commissioning Analysis debugging soft
Part, by each debugging interface realize the downloading of control program, DCU state of a control and data real-time display, DCU history data store with
Display and on-line parameter debugging function.
The motor control algorithms that this example uses is All Speed Range control algolithms and segment sync debugging based on vector controlled
Algorithm, is provided simultaneously with parameter of electric machine identification capability and anti-skidding/slide system control function, and control performance and harmonic requirement can expire
Sufficient train operation demand, parameter of electric machine Identification Errors are not more than ± 10%, and moving axis rim speed and creep speed are controllable and compacted
Slip velocity degree < 5km/h.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of train draft control unit, which is characterized in that adopted including digital signal acquiring unit (1), temperature/pressure signal
Collect unit (2), main control unit (3), fan control unit (4), motor control class signal acquisition unit (5), motor control unit
(6), pulses switch processing unit (7), data storage cell (8), power supply unit (9), system bus (10), internal high-speed bus
(11), PTU unit (12), PTU unit (12) are established direct signal with main control unit (3) and are docked, and main control unit (3) passes through system
Bus (10) respectively with digital signal acquiring unit (1), temperature/pressure signal acquisition unit (2), fan control unit (4), electricity
Machine control class signal acquisition unit (5), motor control unit (6), pulses switch processing unit (7) are attached, data storage
It is connect between unit (8) and main control unit (3) and motor control unit (6) by CAN bus, motor control class signal acquisition list
First (5) and motor control unit (6) establish connection, motor control unit (6) and pulses switch by internal high-speed bus (11)
Rigid line connection is established between processing unit (7), power supply unit (9) is the power supply of each functional unit.
2. a kind of train draft control unit according to claim 1, which is characterized in that the digital signal acquiring unit
(1) it is equipped with digital signal input, output port, for realizing acquisition and the hair for controlling relevant digital signal to train traction
It send, is communicated by system bus (10) with main control unit (3).
3. a kind of train draft control unit according to claim 1, which is characterized in that the temperature/pressure signal is adopted
Collect unit (2) for realizing the acquisition of temperature/pressure signal, and switchs to digital signal and be sent to master control by system bus (10)
Unit (3).
4. a kind of train draft control unit according to claim 1, which is characterized in that the main control unit (3) is used for
Realize telecommunication management, logic control, error protection and status monitoring, meanwhile, be equipped with MVB communication interface, Ethernet interface with
And serial ports passes through Ethernet interface and serial ports by the communication function of the realization of MVB communication interface and train-installed control network
Realization is docked with PTU unit.
5. a kind of train draft control unit according to claim 1, which is characterized in that the fan control unit (4)
For realizing the fan control in train system, and fan failure information is transferred to main control unit (3).
6. a kind of train draft control unit according to claim 1, which is characterized in that the motor control class signal is adopted
Collection unit (5) is used to acquire the simulation and digital signal for directly participating in train traction motor control.
7. a kind of train draft control unit according to claim 1, which is characterized in that the motor control unit (6)
For realizing the management of internal high-speed bus (11) and the control of train traction motor, and IGBT control pulse is generated, by hard
IGBT control pulse is transferred to pulses switch processing unit (7) by line connection.
8. a kind of train draft control unit according to claim 7, which is characterized in that the pulses switch processing unit
(7) for realizing the level conversion of IGBT control pulse, fault detection and quickly protection.
9. a kind of train draft control unit according to claim 1, which is characterized in that the data storage cell (8)
The control variable generated to main control unit (3) and motor control unit (6) stores.
10. a kind of train draft control unit according to claim 4, which is characterized in that the PTU unit is for carrying out
The real-time monitoring signal and waveform of main control unit (3) are shown, parameter testing, historical data analysis and program are downloaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079494.3U CN209257887U (en) | 2018-12-11 | 2018-12-11 | A kind of train draft control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079494.3U CN209257887U (en) | 2018-12-11 | 2018-12-11 | A kind of train draft control unit |
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| Publication Number | Publication Date |
|---|---|
| CN209257887U true CN209257887U (en) | 2019-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822079494.3U Active CN209257887U (en) | 2018-12-11 | 2018-12-11 | A kind of train draft control unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588725A (en) * | 2019-09-12 | 2019-12-20 | 中车株洲电力机车有限公司 | Double-break multi-redundancy control circuit for traction emergency command |
| CN110968076A (en) * | 2019-12-14 | 2020-04-07 | 中车大连电力牵引研发中心有限公司 | Train intelligent network monitoring system based on Ethernet technology |
-
2018
- 2018-12-11 CN CN201822079494.3U patent/CN209257887U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588725A (en) * | 2019-09-12 | 2019-12-20 | 中车株洲电力机车有限公司 | Double-break multi-redundancy control circuit for traction emergency command |
| CN110968076A (en) * | 2019-12-14 | 2020-04-07 | 中车大连电力牵引研发中心有限公司 | Train intelligent network monitoring system based on Ethernet technology |
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