CN106527517A - Steel rail milling-grinding train traction control system and low constant speed control method - Google Patents
Steel rail milling-grinding train traction control system and low constant speed control method Download PDFInfo
- Publication number
- CN106527517A CN106527517A CN201611248365.1A CN201611248365A CN106527517A CN 106527517 A CN106527517 A CN 106527517A CN 201611248365 A CN201611248365 A CN 201611248365A CN 106527517 A CN106527517 A CN 106527517A
- Authority
- CN
- China
- Prior art keywords
- traction
- rail milling
- constant speed
- milling car
- speed
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
- G05D13/62—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a steel rail milling-grinding train traction control system, comprising a generator, a traction converter, a braking resistor and a traction motor; alternating current output by the generator is rectified by a rectifier to output direct current; an inverter converts the direct current into variable voltage and variable frequency alternating current; the traction motor decelerated by an axle gear box drives wheel pairs of a steel rail milling-grinding train so that the steel rail milling-grinding train runs; the braking resistor is connected with the traction converter, and is used for consuming the direct current output by the traction converter during braking so that the intermediate voltage of the traction converter is constant. The system not only can meet the requirement of high speed operation, but also can meet the requirement of low constant speed operation. The system can also automatically adapt to changes of line ropes and milling-grinding loads during operation, and can achieve high constant speed control precision and meet the requirement for milling and grinding steel rails. Besides, the invention further provides a low constant speed control method for a steel rail milling-grinding train, having the above technical advantages.
Description
Technical field
The present invention relates to rail prosthetic appliance technical field, more particularly to a kind of rail milling car pull-in control system with
And low constant speed control method.
Background technology
Rail milling train is a kind of novel steel rail prosthetic appliance, and it adopts the side of moulding by some groups of facing cutters
Formula removes Rail Surface material, eliminates steel rail defect, improves ride comfort.Milling depth of rail milling train is big, and one time i.e.
Can fulfil assignment, operating speed is up to 1500m/h.No-spark, dust etc. in the course of work, iron filings can be collected, environmental friendliness.It is horizontal
To and to repair high precision, working service low cost, circuit adaptability good for longitudinal direction, guard rail and advertiser need not be removed, adapted to
The little gauge such as subway is required.
Rail milling train is made up of two sections, is divided into power car and Operation Van, and two cars are connected by rigid connecting rod.Power
Car A is used to provide power for car load traveling, operation, and there is belt sanding function.Mainly include car body, driven bogie, move
Power bogie, drivers' cab, power and drive system, fuel tank, belt sanding device, Electric Appliance Cabinet, brakes, electrical system
Deng.Operation Van B is the separate unit of rail milling operation, mainly by car body, vehicle frame, two groups of driven bogies, milling attachment, collection
Bits system, electrical system, operation-control system and aid system etc. are constituted.
Low constant-speed operation is referred to locomotive or train and is run with relatively low and constant speed, is that railway engineering engineering goods are peculiar
A kind of working method, complete the maintenance to railway track and power supply unit and safeguard by low constant-speed operation, its performance quality
Larger is affected on operation effectiveness, is a key technology of railway engineering engineering goods research and development.Therefore it provides one kind can meet
High-speed cruising require, the rail milling car pull-in control system that can also meet low constant speed operation needs be those skilled in the art urgently
Technical problem to be solved.
The content of the invention
It is an object of the invention to provide a kind of rail milling car pull-in control system and low constant speed control method, to meet
Rail milling car is to requiring disclosed in high-speed cruising operating mode and low constant speed operation.
To solve above-mentioned technical problem, the present invention provides a kind of rail milling car pull-in control system, including：
Electromotor, traction convertor, braking resistor and traction motor；The traction convertor include commutator and
Inverter；
Rectifier rectification described in the alternating current Jing of the electromotor output, exports unidirectional current；The inverter is for by institute
State unidirectional current and be converted to variable voltage variable frequency alternating current；The traction motor is used to drive the wheel of rail milling car right, so that described
Rail milling car runs；
The braking resistor is connected with the traction convertor, in braking, to traction convertor output
Unidirectional current is consumed, so that the medium voltage of the traction convertor is constant.
Alternatively, the traction convertor specifically for：
Under working condition, according to current operating speed and default constant speed value, the real-time adjustment of rail milling car
Corresponding output frequency；When the current operating speed is less than the default constant speed value, increase the traction current transformation
The output frequency of device；When the current operating speed is more than the default constant speed value, the traction frequency convertor is reduced
Output frequency.
Alternatively, under operating condition, the output voltage of the electromotor is 300-550V, and frequency is 30-50Hz；Making
Under industry operating mode, the output voltage of the electromotor is 380V, and frequency is 50Hz.
Alternatively, the traction motor is cooled down by the way of forcing functions.
Alternatively, also include：Composite cooling apparatus, for cooling down to the traction convertor, the braking resistor.
Alternatively, the composite cooling apparatus include：Cooling air channel, water tank, water pump assembly, cooling fan, heat exchange
Device, pipeline and casing；Wherein, when the cooling fan operates, cooling air is sucked by casing side, heat exchanger described in Jing,
After the cooling fan, the cooling air channel and the braking resistor, discharged by opposite side.
Alternatively, also include：
AuCT, for the power supply needed for providing for the auxiliary equipment of rail milling car.
Present invention also offers a kind of rail milling car low constant speed control method, including：
The current operating speed of detection rail milling car；
The current operating speed and default constant speed value are compared；
When the current operating speed is less than the default constant speed value, increase the output frequency of traction convertor
Rate, so that speed keeps constant；When the current operating speed is more than the default constant speed value, the traction is reduced
The output frequency of converter, so that speed keeps constant.
Rail milling car pull-in control system provided by the present invention, including electromotor, commutator, traction convertor, system
Galvanic electricity hinders and traction motor；The rectified device rectification of alternating current of electromotor output, exports unidirectional current；Traction convertor will be straight
Stream electricity is converted to variable voltage variable frequency alternating current；Variable voltage variable frequency alternating current Jing after axle gear box deceleration, is driven steel by traction motor
The wheel of rail milling car is to making the rail milling car operation；Braking resistor is connected with traction convertor, in braking, to leading
The unidirectional current for drawing current transformer output is consumed, so that the medium voltage of traction convertor is constant.Rail provided by the present invention
Milling car pull-in control system, can not only meet high-speed cruising requirement, it is also possible to meet low constant speed operation needs.In operation also
The change of circuit ramp and milling load can be adapted to automatically, higher fixed speed control precision can be reached, rail milling is met
The requirement of mill.Additionally, a kind of present invention also offers rail milling car low constant speed control method with above-mentioned technological merit.
Description of the drawings
For the clearer explanation embodiment of the present invention or the technical scheme of prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic diagram of specific embodiment of rail milling car pull-in control system provided by the present invention；
Fig. 2 is the generator circuit schematic diagram of rail milling car provided by the present invention；
Fig. 3 is the flow chart of rail milling car low constant speed control method provided in an embodiment of the present invention；
Fig. 4 is rail milling car low constant speed control principle schematic provided in an embodiment of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
A kind of schematic diagram such as Fig. 1 institutes of the specific embodiment of rail milling car pull-in control system provided by the present invention
Show, the system is specifically included：
Electromotor, traction convertor, braking resistor and traction motor；Traction convertor includes commutator and inversion
Device (not shown).
The electromotor is generated electricity by Diesel Driven, and rectifier rectification described in the alternating current Jing of its output, output are straight
Stream electricity；The inverter is for being converted to variable voltage variable frequency alternating current by the unidirectional current；The traction motor is used for Jing axletrees
After gearbox speed reduction, the wheel of rail milling car is driven to making the rail milling car operation；
The braking resistor is connected with the traction convertor, in braking, to traction convertor output
Unidirectional current is consumed, so that the medium voltage of the traction convertor is constant.
It is pointed out that traction convertor is two in the embodiment of the present invention, braking resistor is similarly two.Each leads
Draw two, the corresponding traction motor of current transformer, correspond to a skiving case respectively and take turns right.During traction, electromotor output AC
Electric first rectified device exports unidirectional current, then Jing inverters output variable voltage variable frequency alternating current, supplies traction motor, Jing axle gears
Case deceleration rear drive sprocket pair, makes train operation.During electric braking, take turns to driving traction motor to do generator operation, produce and fortune
The contrary brake force of line direction.Traction motor Jing inverters export unidirectional current, by chopper consumption in braking resistor, make
Traction convertor medium voltage is constant.
In the present embodiment traction convertor specifically for：Under working condition, according to the current operation car of rail milling car
It is fast with default constant speed value, the corresponding output frequency of real-time adjustment；When the current operating speed is less than described default
During constant speed value, increase the output frequency of the traction convertor；When the current operating speed is more than the default perseverance
During constant speed angle value, the output frequency of the traction frequency convertor is reduced.It is by the output frequency and voltage that control traction convertor, real
The now control to traction motor electromagnetic torque, so as to realize the control to pull strength or brake force.
Rail milling car pull-in control system provided by the present invention, including：Electromotor, traction convertor, braking resistor
And traction motor；The rectified device rectification of alternating current of electromotor output, exports unidirectional current；Unidirectional current is converted to by inverter
Variable voltage variable frequency alternating current；Traction motor is used for Jing after axle gear box slows down, and drives the wheel of rail milling car to making the steel
Rail milling car runs；Braking resistor is connected with traction convertor, in braking, entering to the unidirectional current of traction convertor output
Row is consumed, so that the medium voltage of traction convertor is constant.Rail milling car pull-in control system provided by the present invention, not only
High-speed cruising requirement can be met, it is also possible to meet low constant speed operation needs.Can also adapt to automatically in operation circuit ramp and
The change of milling load, can reach higher fixed speed control precision, meet the requirement of rail milling.
Rail milling car uses operating mode with two kinds, therefore proposes different requirements to electromotor output.Operating condition
Electromotor is variable voltage variable frequency working method, and diesel engine is operated in speed change state；Working condition electromotor is level pressure frequency work side surely
Formula, diesel engine are operated in constant velocity state.The conversion of two kinds of working methods is by controlling diesel engine speed and exciter current of generator
To realize.
Rail milling car provided by the present invention is capable of achieving low constant-speed operation in operation, and velocity interval is 0.5-1.5km/
H, corresponding motor speed are 20.8-62.5r/min, and rotor frequency is 0.7-2.1Hz.Constant speed precision is ± 0.1km/h, corresponding
Motor speed be ± 4.2r/min, rotor frequency be ± 0.1Hz.Operating condition maximum speed and working condition minimum speed speed
Than low speed operation and two kinds of operating modes of high-speed cruising for 80/0.5=160, can be taken into account.
Under operation with two kinds of operating modes of operation, electromotor adopts dual output, and at a high speed using high voltage supply, low speed is adopted
Low-voltage power supply, is matched with rim horsepower, while reducing the impact of harmonic wave.
With reference to the generator circuit schematic diagram of Fig. 2 rail milling cars provided by the present invention, the below work to electromotor
Process is further elaborated on.
Under operating condition：F is closed, and K disconnects.Electromotor is that traction convertor and AuCT are powered.Electromotor is defeated
It is 300-550V to go out voltage, and frequency is 30-50Hz, and diesel engine speed is 900-1500r/min.Air compressor machine and traction ventilator etc.
380V/50Hz power supplys needed for auxiliary equipment are provided by AuCT.
Under working condition：F is closed with K.Electromotor is that traction convertor and AuCT are powered, while supplemented by
Help, milling and grinding apparatus are powered.Generator output voltage is 380V, and frequency is 50Hz, and diesel engine speed is 1500r/min.
380V/50Hz power supplys needed for the auxiliary equipment such as air compressor machine and traction ventilator are still provided by AuCT.
In the embodiment of the present invention, electromotor is changed diesel engine speed and is also just changed generator speed by Diesel Driven.
In order that electromotor obtains stable output voltage, generator speed should work within the limits prescribed, particularly rated point.
When traction convertor and braking resistor work, deflector element and braking resistor can be generated heat, it is necessary to which be carried out cold
But.Therefore, on the basis of above-described embodiment, the embodiment of the present invention can further include：Composite cooling apparatus, for right
The traction convertor, the braking resistor are cooled down.
Rail milling car traction convertor is water-cooling pattern, and braking resistor is air cooling way.Composite cooling apparatus will draw
Current transformer water cooling plant and braking resistor air cooling equipment are integrated, and are only achieved that to deflector element with a cooling fan
With the cooling of braking resistor, with rational in infrastructure simple, the characteristics of working service facilitates.
Used as a kind of specific embodiment, composite cooling apparatus can include：It is cooling air channel, water tank, water pump assembly, cold
But fan, heat exchanger, pipeline and casing；Wherein, when the cooling fan operates, cooling air is sucked by casing side, Jing
After the heat exchanger, the cooling fan, the cooling air channel and the braking resistor, discharged by opposite side, realized to becoming
The cooling of fluid element and braking resistor.
Further, in the present embodiment, traction motor can be made with using forcing functions mode (such as IC416), solving low speed
Industry traction motor cools down problem.
The embodiment of the present invention can also include AuCT, needed for providing for the auxiliary equipment of rail milling car
Power supply.
Additionally, good adhesive performance is the basis of low constant speed control, therefore the present embodiment can be heavy using adhesion is increased
Amount method, prevents idling slide from occurring.
Traction convertor control is the core technology of low constant speed, control algolithm and processing speed to low constant speed performance impact compared with
Greatly.Below rail milling car low constant speed control method provided in an embodiment of the present invention is introduced, rail milling described below
Mill car low constant speed control method can be mutually to should refer to above-described rail milling car pull-in control system.
Fig. 3 is the flow chart of rail milling car low constant speed control method provided in an embodiment of the present invention, with reference to Fig. 3 rail millings
Mill car low constant speed control method can include：
Step S101：The current operating speed of detection rail milling car；
Step S102：The current operating speed and default constant speed value are compared；
Step S103：When the current operating speed is less than the default constant speed value, increase traction convertor
Output frequency so that speed keep it is constant；When the current operating speed is more than the default constant speed value, reduce
The output frequency of the traction frequency convertor, so that speed keeps constant.
Low constant speed control is substantially by controlling traction convertor output frequency and voltage, to traction motor electromagnetic torque
Control, that is, the control to pull strength or brake force.To reach higher control accuracy, the embodiment of the present invention can be adopted
Closed loop control.Closed loop control is exactly to apply feedback control to motor speed, makes motor speed constant in setting value.For this purpose,
Need control electromagnetic torque equal with load torque, can just make relative speed variation be zero, be i.e. invariablenes turning speed is constant.It is low with reference to Fig. 4
Fixed speed control principle schematic, is further elaborated on to speed regulation process during ascents and descents below.
1), when going up a slope, operating point change over order is a-b-c.If converter output frequency keeps f2It is constant, then run to b
Point, speed are reduced, and are to keep speed constant, are improved converter output frequency to f3, pull strength increase, that is, run to operating point c,
Make speed constant.
2), during descending, operating point change over order is a-d-e.If converter output frequency keeps f2It is constant, then run to d
Point, speed are raised, and are to keep speed constant, are reduced converter output frequency to f1, brake force increase, that is, run to operating point e,
Make speed constant.
Rail milling car low constant speed control method provided by the present invention, by the current operation car for detecting rail milling car
Speed；Current operating speed is compared with default constant speed value；When current operating speed is less than default constant speed
During value, increase the output frequency of traction convertor, so that speed keeps constant；When current operating speed is more than default constant speed
During angle value, the output frequency of traction frequency convertor is reduced, so that speed keeps constant.The low perseverance of rail milling car provided by the present invention
Speed control method so that rail milling car can not only meet high-speed cruising requirement, additionally it is possible to meet low constant speed operation needs.And
And the change that circuit ramp and milling are loaded can also be adapted to automatically in operation, higher fixed speed control precision can be reached,
Meet the requirement of rail milling.
In this specification, each embodiment is described by the way of progressive, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment same or similar part mutually referring to.For dress disclosed in embodiment
For putting, as which corresponds to the method disclosed in Example, so description is fairly simple, related part is referring to method part
Illustrate.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can with electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes the composition and step of each example in the above description according to function.These
Function actually with hardware or software mode performing, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can use different methods to realize described function to each specific application, but this realization should not
Think beyond the scope of this invention.
The step of method described with reference to the embodiments described herein or algorithm, directly can be held with hardware, processor
Capable software module, or the combination of the two is implementing.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Above rail milling car pull-in control system provided by the present invention and low constant speed control method have been carried out in detail
It is thin to introduce.Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help and understand the method for the present invention and its core concept.It should be pointed out that for the ordinary skill of the art
For personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improvement
Also fall in the protection domain of the claims in the present invention with modification.
Claims (8)
1. a kind of rail milling car pull-in control system, it is characterised in that include：
Electromotor, traction convertor, braking resistor and traction motor；The traction convertor includes commutator and inversion
Device；
Rectifier rectification described in the alternating current Jing of the electromotor output, exports unidirectional current；The inverter is used for will be described straight
Stream electricity is converted to variable voltage variable frequency alternating current；The traction motor is used to drive the wheel of rail milling car right, so that the rail
Milling car runs；
The braking resistor is connected with the traction convertor, for the direct current when braking, to traction convertor output
Electricity is consumed, so that the medium voltage of the traction convertor is constant.
2. rail milling car pull-in control system as claimed in claim 1, it is characterised in that the traction current transformation implement body is used
In：
Under working condition, according to current operating speed and the default constant speed value of rail milling car, real-time adjustment correspondence
Output frequency；When the current operating speed is less than the default constant speed value, increase the traction convertor
Output frequency；When the current operating speed is more than the default constant speed value, the defeated of the traction frequency convertor is reduced
Go out frequency.
3. rail milling car pull-in control system as claimed in claim 2, it is characterised in that under operating condition, described
The output voltage of motor is 300-550V, and frequency is 30-50Hz；Under working condition, the output voltage of the electromotor is
380V, frequency are 50Hz.
4. the rail milling car pull-in control system as described in any one of claims 1 to 3, it is characterised in that the traction electricity
Motivation is cooled down by the way of forcing functions.
5. rail milling car pull-in control system as claimed in claim 4, it is characterised in that also include：Composite cooling apparatus,
For cooling down to the traction convertor, the braking resistor.
6. rail milling car pull-in control system as claimed in claim 5, it is characterised in that the composite cooling apparatus bag
Include：Cooling air channel, water tank, water pump assembly, cooling fan, heat exchanger, pipeline and casing；Wherein, the cooling fan fortune
When turning, cooling air is sucked by casing side, heat exchanger, the cooling fan, the cooling air channel and the system described in Jing
After galvanic electricity resistance, discharged by opposite side.
7. rail milling car pull-in control system as claimed in claim 6, it is characterised in that also include：
AuCT, for the power supply needed for providing for the auxiliary equipment of rail milling car.
8. a kind of rail milling car low constant speed control method, it is characterised in that include：
The current operating speed of detection rail milling car；
The current operating speed and default constant speed value are compared；
When the current operating speed is less than the default constant speed value, increase the output frequency of traction convertor, with
Speed is made to keep constant；When the current operating speed is more than the default constant speed value, the traction frequency conversion is reduced
The output frequency of device, so that speed keeps constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248365.1A CN106527517A (en) | 2016-12-29 | 2016-12-29 | Steel rail milling-grinding train traction control system and low constant speed control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248365.1A CN106527517A (en) | 2016-12-29 | 2016-12-29 | Steel rail milling-grinding train traction control system and low constant speed control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106527517A true CN106527517A (en) | 2017-03-22 |
Family
ID=58339301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611248365.1A Pending CN106527517A (en) | 2016-12-29 | 2016-12-29 | Steel rail milling-grinding train traction control system and low constant speed control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106527517A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752819A (en) * | 2020-06-04 | 2021-12-07 | 株洲变流技术国家工程研究中心有限公司 | Vehicle and electric transmission system and vehicle cooling system thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0789109A1 (en) * | 1996-02-06 | 1997-08-13 | Scheuchzer S.A. | Rail profiling machine |
| CN101000972A (en) * | 2006-12-28 | 2007-07-18 | 奇瑞汽车有限公司 | Thermal control device for battery of mixed power vehicle |
| CN102535280A (en) * | 2012-02-13 | 2012-07-04 | 株洲时代电子技术有限公司 | Hybrid rail grinding wagon |
| CN103192726A (en) * | 2013-04-27 | 2013-07-10 | 株洲南车时代电气股份有限公司 | Alternating-current transmission diesel locomotive power supply system |
| CN103786734A (en) * | 2014-01-22 | 2014-05-14 | 宝鸡南车时代工程机械有限公司 | Self-powered metro steel rail grinding wagon |
| CN104527659A (en) * | 2014-12-29 | 2015-04-22 | 北京二七轨道交通装备有限责任公司 | Drive system for train traction |
| CN104562877A (en) * | 2014-12-26 | 2015-04-29 | 北京二七轨道交通装备有限责任公司 | Transmission system of rail milling and grinding vehicle |
| CN105334881A (en) * | 2015-11-17 | 2016-02-17 | 株洲南车时代电气股份有限公司 | Control method for constant-speed running of train |
| CN105644569A (en) * | 2014-09-25 | 2016-06-08 | 通用电气公司 | Vehicle traction control system and method |
-
2016
- 2016-12-29 CN CN201611248365.1A patent/CN106527517A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0789109A1 (en) * | 1996-02-06 | 1997-08-13 | Scheuchzer S.A. | Rail profiling machine |
| CN101000972A (en) * | 2006-12-28 | 2007-07-18 | 奇瑞汽车有限公司 | Thermal control device for battery of mixed power vehicle |
| CN102535280A (en) * | 2012-02-13 | 2012-07-04 | 株洲时代电子技术有限公司 | Hybrid rail grinding wagon |
| CN103192726A (en) * | 2013-04-27 | 2013-07-10 | 株洲南车时代电气股份有限公司 | Alternating-current transmission diesel locomotive power supply system |
| CN103786734A (en) * | 2014-01-22 | 2014-05-14 | 宝鸡南车时代工程机械有限公司 | Self-powered metro steel rail grinding wagon |
| CN105644569A (en) * | 2014-09-25 | 2016-06-08 | 通用电气公司 | Vehicle traction control system and method |
| CN104562877A (en) * | 2014-12-26 | 2015-04-29 | 北京二七轨道交通装备有限责任公司 | Transmission system of rail milling and grinding vehicle |
| CN104527659A (en) * | 2014-12-29 | 2015-04-22 | 北京二七轨道交通装备有限责任公司 | Drive system for train traction |
| CN105334881A (en) * | 2015-11-17 | 2016-02-17 | 株洲南车时代电气股份有限公司 | Control method for constant-speed running of train |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752819A (en) * | 2020-06-04 | 2021-12-07 | 株洲变流技术国家工程研究中心有限公司 | Vehicle and electric transmission system and vehicle cooling system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9493175B2 (en) | Systems and methods for identifying different types of traction motors in a vehicle system | |
| CN104527659B (en) | Transmission system for train traction | |
| CN102535280B (en) | Hybrid rail grinding wagon | |
| CN104742918B (en) | Dual power source subway electric transmission rail grinding machine and its powershift method | |
| CN202847693U (en) | Electric traction system of alternating current drive locomotive | |
| US20130082626A1 (en) | System and method for traction motor control | |
| US20130320900A1 (en) | System and method for traction motor control | |
| CN110834550A (en) | Vehicle AC transmission system | |
| US10906521B2 (en) | System and method for controlling at least one of tractive or braking efforts of a vehicle system | |
| CN208038943U (en) | A kind of high-speed steel rail polishing vehicle | |
| CN106527517A (en) | Steel rail milling-grinding train traction control system and low constant speed control method | |
| CN201413239Y (en) | Comprehensive test device for railroad locomotive wheelset | |
| RU99388U1 (en) | COMPOSITION OF A TWO-SYSTEM PASSENGER ELECTRIC TRAIN | |
| CN211947737U (en) | Double dynamical source rail car of polishing | |
| CN202688807U (en) | Hybrid power steel rail grinding wagon | |
| CN106602949A (en) | Rail milling machine generator circuit | |
| CN205554191U (en) | 1000kW power grade electricelectric moves and exchanges transmission shunting loco | |
| CN109577117B (en) | Transmission system of rail operation vehicle | |
| CN103587425A (en) | Stringing disc-type electric locomotive | |
| CN109606395A (en) | A kind of track operation vehicle drive-train method | |
| CN201895665U (en) | AC-driven rail vehicle | |
| CN103587533A (en) | Accumulator disc type electric locomotive | |
| Domanov | Innovative doubly-fed freight electric locomotive 2EV120 “Knyaz’Vladimir” | |
| CN203580672U (en) | Overhead line disk type electric locomotive | |
| CN111088733A (en) | Online renovation equipment of portable new forms of energy intelligence rail |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |