CN101049832A - Method and equipment for controlling electronic braking controller - Google Patents

Method and equipment for controlling electronic braking controller Download PDF

Info

Publication number
CN101049832A
CN101049832A CN 200710034981 CN200710034981A CN101049832A CN 101049832 A CN101049832 A CN 101049832A CN 200710034981 CN200710034981 CN 200710034981 CN 200710034981 A CN200710034981 A CN 200710034981A CN 101049832 A CN101049832 A CN 101049832A
Authority
CN
China
Prior art keywords
control unit
autobrake
handle
controller
brake controller
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.)
Granted
Application number
CN 200710034981
Other languages
Chinese (zh)
Other versions
CN100584677C (en
Inventor
刘豫湘
高殿柱
方长征
朱进
林平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHUZHOU ELECTRIC POWER LOCOMOTIVE CO Ltd CHINA NANCHE GROUP
Original Assignee
ZHUZHOU ELECTRIC POWER LOCOMOTIVE CO Ltd CHINA NANCHE GROUP
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHUZHOU ELECTRIC POWER LOCOMOTIVE CO Ltd CHINA NANCHE GROUP filed Critical ZHUZHOU ELECTRIC POWER LOCOMOTIVE CO Ltd CHINA NANCHE GROUP
Priority to CN200710034981A priority Critical patent/CN100584677C/en
Publication of CN101049832A publication Critical patent/CN101049832A/en
Application granted granted Critical
Publication of CN100584677C publication Critical patent/CN100584677C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Braking Systems And Boosters (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A control method and apparatus for the electronic braking controller of train and locomotive features that such functions as automatic braking, individual braking, individual buffering and exchanging the terminal by electric key are provided, its electro-pneumatic braking controller has intelligent node to provide bus communication function to the controller, and the switch value or analog value is used for the controller.

Description

A kind of electronic brake controller control method and device
Technical field
The present invention relates to a kind of locomotive or vehicle braked control method and device, refer in particular to the electronic brake controller control method and the device of a kind of locomotive or vehicle, be mainly used in various kinds of vehicles or the vehicle braked control system.
Background technology
Electronic brake controller is the control apparatus that is used for handling control electric locomotive, diesel locomotive, the operation of battery-driven car group, is used for controlling the braking and the alleviation of locomotive (train).Electronic brake controller is a kind of electrical equipment combined changeover switch, and its basic structure is similar to driver controller.The braking and the alleviation of autobrake controller control train, it has six control positioies: urgent position, overcharges the position at double-heading position, braking, neutral position, driving position.By inhibiting device, manipulating handgrip can only take out in the double-heading position position or insert.
Air brake valve is used for the braking and the alleviation of individual operation locomotive, and with the braking of train with alleviate irrelevant.It has four control positioies: promptly alleviate position, driving position, neutral position and retarder location.After changing the conversion of driving lever by the electricity on it idle running, can handle the braking and the alleviation of full train.By inhibiting device, manipulating handgrip can only take out or insert at driving position.
But the autobrake controller still is all just switching value output of independent brake controller at present, does not have intelligent node, can only export autobrake controller or independent brake controller close timepiece, and the accuracy of output signal can not satisfy the requirement of work fully.Therefore, necessary this is improved.
Summary of the invention
The objective of the invention is to deficiency, propose a kind of intelligent node that has, the control method of the electronic brake controller that the accuracy of output signal is higher and device at existing E P brake controller autobrake control.
The objective of the invention is to be achieved through the following technical solutions: a kind of electronic brake controller, electronic brake controller has autobrake, independent brake, single slow and Electrical key changes functions such as end, can realize the braking, single slow and change to hold and control to train and locomotive.It is characterized in that: in E P brake controller, be provided with intelligent node, make E P brake controller possess the bus communication function; Electronic brake controller is controlled by switching value or analog quantity, and switching value or analog quantity can be by self handling by bus transfer (rigid line before replacing connects); After the E P brake controller faults itself is judged, and classify by its order of severity by fault and to pass through bus transfer.Rigid line and bus are exported simultaneously, two-way Redundancy Design, the accuracy of assurance output signal.Its control principle is: I end, II end on locomotive have a driver controller respectively, are used for controlling the behavior of BCU (control module).The work that the two ends driver controller is finished is the same.Driver controller inside is embedded with switch acquisition module, AD (analog quantity) sampling module and CAN (Communication Control bus) communication module.Switch acquisition module be responsible for sampling handle position and some buttons; The AD sampling module handle level of being responsible for sampling; The CAN communication module is responsible for the communication with BCU, and handle position, handle level are passed to BCU by the CAN bus.
Higher for reliability simultaneously, at present will handle position, handle utmost point position links to each other with BCU by rigid line, and (CAN bus and rigid line are defined as, information with the CAN bus is primary information), the information of rigid line is redundancy or check information, increase safety measure simultaneously, promptly working as CAN information has 500ms not received by BCU, and should have guiding urgent or commonly used this moment.
The structure of electronic brake controller is: have autobrake control unit, independent brake control unit, single slow unit, mechanical locking unit and digital processing element at least, described autobrake control unit, independent brake control unit, single slow unit, mechanical locking unit and digital processing element form a whole by panel, adapter plate, installation pillar, electric coupler and protective cover etc.The autobrake control unit is installed in a side of panel, the independent brake control unit is at the opposite side of panel, the mechanical locking unit is arranged between autobrake control unit and the independent brake control unit, and by centering type spring bolt mechanism implementation mechanical chain, single slow unit also is arranged between autobrake control unit and the independent brake control unit.
Electronic brake controller has two operating handles, autobrake control handle (to call big lock handle in the following text) and independent brake control handle (to call little lock handle in the following text).Big lock handle is in the left side, and little lock handle is on the right side.Push away anteposition before the big lock handle and be urgent position, be followed successively by double-heading position, suppress the position, braking district, driving position, overcharge the position toward post-tensioning.Push away anteposition before the little lock handle and be the braking district, be followed successively by driving position backward and alleviate the position.
Big lock braking district is the step-less adjustment zone, adopts precision resistor to carry out step-less adjustment, by digital processing element the voltage rotaring signal of potential device output is converted into dc current signal and the output of DC110V pulse width signal; Urgent position has the function of directly leaking informaton, and directly arranges car pipe pressure air by vent valve; Overcharge the position and have the runback function; Lever operated power is about 10N~49N when urgent position, other positions and braking district are about 20~35N.
Little lock braking district is the step-less adjustment zone, adopts precision resistor to carry out step-less adjustment, by digital processing element the voltage rotaring signal of potential device output is converted into dc current signal output; Alleviate the position and have the runback function; Lever operated power in each position and braking district be about 20~35N.
The invention has the advantages that: the invention provides switching value or or analog signals output, have the function of intelligent node, rigid line and bus are exported simultaneously, the two-way Redundancy Design guarantees the accuracy of output signal.And adopt precision resistor to carry out step-less adjustment, the voltage rotaring signal of potential device output is converted into dc current signal output, have the step-less adjustment function, the affected convenience that provides is provided by digital processing element.Simultaneously alleviate automatically reset structure and promptly rank the direct air discharge structure of car pipe of position, make electronic brake controller have more superior operating characteristic and reliability owing to structurally adopted mechanical chain, autobrake controller to overcharge position and independent brake controller.
Description of drawings
Fig. 1 is a principle of the invention scheme drawing;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is a structural representation lateral plan of the present invention.
The specific embodiment
Accompanying drawing has provided one embodiment of the present of invention, below in conjunction with accompanying drawing the present invention is further described.
From accompanying drawing as can be seen, the present invention is a kind of electronic brake controller, and electronic brake controller has autobrake, independent brake, single slow and Electrical key changes functions such as end, can realize the braking, single slow and change to hold and control to train and locomotive.It is characterized in that: in E P brake controller, be provided with intelligent node, make E P brake controller possess the bus communication function; Electronic brake controller is controlled by switching value or analog quantity, and switching value or analog quantity can be by self handling by bus transfer (rigid line before replacing connects); After the E P brake controller faults itself is judged, and classify by its order of severity by fault and to pass through bus transfer.Rigid line and bus are exported simultaneously, two-way Redundancy Design, the accuracy of assurance output signal.Its control principle is: I end, II end on locomotive have a driver controller respectively, are used for controlling the behavior of BCU (control module).The work that the two ends driver controller is finished is the same.Driver controller inside is embedded with switch acquisition module, AD (analog quantity) sampling module and CAN (Communication Control bus) communication module.Switch acquisition module be responsible for sampling handle position and some buttons; The AD sampling module handle level of being responsible for sampling; The CAN communication module is responsible for the communication with BCU, and handle position, handle level are passed to BCU by the CAN bus.
Higher for reliability simultaneously, at present will handle position, handle utmost point position links to each other with BCU by rigid line, and (CAN bus and rigid line are defined as, information with the CAN bus is primary information), the information of rigid line is redundancy or check information, increase safety measure simultaneously, promptly working as CAN information has 500ms not received by BCU, and should have guiding urgent or commonly used this moment.
At least have autobrake control unit 1, independent brake control unit 2, single slow unit 3, mechanical locking unit 4 and digital processing element 5, described autobrake control unit 1, independent brake control unit 2, single slow unit 3, mechanical locking unit 4 and digital processing element 5 form a whole by panel 6, adapter plate 7, installation pillar 8, electric coupler 9 and protective cover 10 etc.Autobrake control unit 1 is installed in a side of panel 6, independent brake control unit 2 is at the opposite side of panel 6, mechanical locking unit 4 is arranged between autobrake control unit 1 and the independent brake control unit 2, and by centering type spring bolt mechanism implementation mechanical chain, single slow unit 3 also is arranged between autobrake control unit 1 and the independent brake control unit 2.
Electronic brake controller has two operating handles, autobrake control handle (to call big lock handle in the following text) and independent brake control handle (to call little lock handle in the following text).Big lock handle is in the left side, and little lock handle is on the right side.Push away anteposition before the big lock handle and be urgent position, be followed successively by double-heading position, suppress the position, braking district, driving position, overcharge the position toward post-tensioning.Push away anteposition before the little lock handle and be the braking district, be followed successively by driving position backward and alleviate the position.
Big lock braking district is the step-less adjustment zone, adopts precision resistor to carry out step-less adjustment, by digital processing element the voltage rotaring signal of potential device output is converted into dc current signal and the output of DC110V pulse width signal; Urgent position has the function of directly leaking informaton, and directly arranges car pipe pressure air by vent valve; Overcharge the position and have the runback function; Lever operated power is about 10N~49N when urgent position, other positions and braking district are about 20~35N.
Little lock braking district is the step-less adjustment zone, adopts precision resistor to carry out step-less adjustment, by digital processing element the voltage rotaring signal of potential device output is converted into dc current signal output; Alleviate the position and have the runback function; Lever operated power in each position and braking district be about 20~35N.

Claims (8)

1, a kind of electronic brake controller control method is characterized in that: electronic brake controller has autobrake, independent brake, single slow and Electrical key changes functions such as end, can realize the braking, single slow and change to hold and control to train and locomotive.
2, electronic brake controller control method as claimed in claim 1 is characterized in that: be provided with intelligent node in E P brake controller, make E P brake controller possess the bus communication function; Electronic brake controller is controlled by switching value or analog quantity, and switching value or analog quantity can be handled by self and pass through bus transfer; After the E P brake controller faults itself is judged, and classify by its order of severity by fault and to pass through bus transfer.
3, electronic brake controller control method as claimed in claim 1, it is characterized in that: rigid line and bus are exported simultaneously, two-way Redundancy Design, the accuracy of assurance output signal.
4, electronic brake controller control method as claimed in claim 1 is characterized in that: I end, II end on locomotive have a driver controller respectively, are used for controlling the behavior of control module.The work that the two ends driver controller is finished is the same.Driver controller inside is embedded with switch acquisition module, analog quantity sampling module and CAN communication module.Switch acquisition module be responsible for sampling handle position and some buttons; The AD sampling module handle level of being responsible for sampling; The CAN communication module is responsible for the communication with BCU, and handle position, handle level are passed to BCU by the CAN bus.
5, a kind of device of realizing the described electronic brake controller control method of claim 1, it is characterized in that: described electronic brake controller has autobrake control unit, independent brake control unit, single slow unit, mechanical locking unit and digital processing element at least, and described autobrake control unit, independent brake control unit, single slow unit, mechanical locking unit and digital processing element form a whole by panel, adapter plate, installation pillar, electric coupler and protective cover etc.; The autobrake control unit is installed in a side of panel, the independent brake control unit is at the opposite side of panel, the mechanical locking unit is arranged between autobrake control unit and the independent brake control unit, and by centering type spring bolt mechanism implementation mechanical chain, single slow unit also is arranged between autobrake control unit and the independent brake control unit.
6, device as claimed in claim 5 is characterized in that: electronic brake controller has two operating handles, autobrake control handle and independent brake control handle; The autobrake control handle is in the left side, and the independent brake control handle is on the right side.Push away anteposition before the autobrake control handle and be urgent position, be followed successively by double-heading position, suppress the position, braking district, driving position, overcharge the position toward post-tensioning; Push away anteposition before the independent brake control handle and be the braking district, be followed successively by driving position backward and alleviate the position.
7, device as claimed in claim 5, it is characterized in that: the braking district of autobrake control unit is the step-less adjustment zone, adopt precision resistor to carry out step-less adjustment, the voltage rotaring signal of potential device output is converted into dc current signal and the output of DC110V pulse width signal by digital processing element; And urgent position has the function of directly leaking informaton, and directly arranges car pipe pressure air by vent valve; Overcharge the position and have the runback function; Lever operated power is about 10N~49N when urgent position, other positions and braking district are about 20~35N.
8, device as claimed in claim 5, it is characterized in that: the braking district of independent brake control unit is the step-less adjustment zone, adopt precision resistor to carry out step-less adjustment, the voltage rotaring signal of potential device output is converted into dc current signal output by digital processing element; Alleviate the position and have the runback function; Lever operated power in each position and braking district be about 20~35N.
CN200710034981A 2007-05-23 2007-05-23 Method and equipment for controlling electronic braking controller Active CN100584677C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200710034981A CN100584677C (en) 2007-05-23 2007-05-23 Method and equipment for controlling electronic braking controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200710034981A CN100584677C (en) 2007-05-23 2007-05-23 Method and equipment for controlling electronic braking controller

Publications (2)

Publication Number Publication Date
CN101049832A true CN101049832A (en) 2007-10-10
CN100584677C CN100584677C (en) 2010-01-27

Family

ID=38781488

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200710034981A Active CN100584677C (en) 2007-05-23 2007-05-23 Method and equipment for controlling electronic braking controller

Country Status (1)

Country Link
CN (1) CN100584677C (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774376A (en) * 2010-03-12 2010-07-14 北京南车时代机车车辆机械有限公司 Air brake valve for locomotive and use method thereof
CN102114847A (en) * 2011-01-21 2011-07-06 铁道部运输局 Brake control device for rail transit vehicle
CN102114860A (en) * 2011-01-21 2011-07-06 铁道部运输局 Driver command conversion equipment for rail transit vehicle brake control system
CN103612646A (en) * 2013-12-11 2014-03-05 南车株洲电力机车有限公司 Control method and system for backup braking mode conversion of electric locomotive
CN104309598A (en) * 2014-10-23 2015-01-28 南车株洲电力机车有限公司 Locomotive brake controlling method and system
CN104401352A (en) * 2014-11-20 2015-03-11 南车资阳机车有限公司 Locomotive air and electricity composite braking control system
CN105083251A (en) * 2014-11-28 2015-11-25 南车青岛四方机车车辆股份有限公司 Train automatic braking control circuit based on bogie unstability detecting devices
WO2016082659A1 (en) * 2014-11-28 2016-06-02 中车青岛四方机车车辆股份有限公司 Train automatic braking control circuit based on bogie instability detection apparatus
CN105644389A (en) * 2014-11-12 2016-06-08 海马轿车有限公司 Redundancy control method and system of vehicle
CN105923011A (en) * 2016-04-27 2016-09-07 中国铁道科学研究院 Brake controller with electrical redundancy control function
CN106553662A (en) * 2016-11-30 2017-04-05 中车青岛四方车辆研究所有限公司 AC drive locomotive brake system electronic control system
CN106627648A (en) * 2016-10-21 2017-05-10 中车青岛四方车辆研究所有限公司 Locomotive brake controller
CN107097806A (en) * 2016-11-30 2017-08-29 中车青岛四方车辆研究所有限公司 The electronic control system of AC drive locomotive brakes
CN107226106A (en) * 2017-06-12 2017-10-03 中车株洲电力机车有限公司 Locomotive and its brake monitor
CN110015317A (en) * 2019-04-23 2019-07-16 中车株洲电力机车有限公司 A kind of brake monitor emergency brake signal synchronism output mechanism
CN111376945A (en) * 2018-12-27 2020-07-07 中车唐山机车车辆有限公司 Rail train
CN111439244A (en) * 2020-04-26 2020-07-24 中车青岛四方车辆研究所有限公司 Locomotive electronic brake control system
CN111497930A (en) * 2020-03-31 2020-08-07 联创汽车电子有限公司 Safety control module and safety control method
CN112848895A (en) * 2019-11-12 2021-05-28 株洲中车时代电气股份有限公司 Locomotive power supply electrical protection device and control method
CN113844425A (en) * 2021-10-12 2021-12-28 中车株洲电力机车有限公司 Locomotive brake, guiding control method of single brake controller of locomotive brake and vehicle
CN113859209A (en) * 2021-10-22 2021-12-31 中车株洲电力机车有限公司 Locomotive brake, single-brake safe control method of single-brake controller and vehicle
CN113879342A (en) * 2021-11-15 2022-01-04 中车株洲电力机车有限公司 Locomotive driver controller and control method thereof
CN113942486A (en) * 2021-10-22 2022-01-18 交控科技股份有限公司 Brake fault processing method and signal system

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774376A (en) * 2010-03-12 2010-07-14 北京南车时代机车车辆机械有限公司 Air brake valve for locomotive and use method thereof
CN102114847A (en) * 2011-01-21 2011-07-06 铁道部运输局 Brake control device for rail transit vehicle
CN102114860A (en) * 2011-01-21 2011-07-06 铁道部运输局 Driver command conversion equipment for rail transit vehicle brake control system
CN102114847B (en) * 2011-01-21 2013-01-30 铁道部运输局 Brake control device for rail transit vehicle
CN103612646A (en) * 2013-12-11 2014-03-05 南车株洲电力机车有限公司 Control method and system for backup braking mode conversion of electric locomotive
CN103612646B (en) * 2013-12-11 2016-05-25 南车株洲电力机车有限公司 A kind of control method and system of electric locomotive translation look-aside braking mode
CN104309598A (en) * 2014-10-23 2015-01-28 南车株洲电力机车有限公司 Locomotive brake controlling method and system
CN105644389A (en) * 2014-11-12 2016-06-08 海马轿车有限公司 Redundancy control method and system of vehicle
CN105644389B (en) * 2014-11-12 2019-06-07 海马汽车有限公司 The redundancy control method and system of automobile
CN104401352A (en) * 2014-11-20 2015-03-11 南车资阳机车有限公司 Locomotive air and electricity composite braking control system
CN105083251B (en) * 2014-11-28 2017-12-01 中车青岛四方机车车辆股份有限公司 Automatic braking of train control circuit based on bogie unstability detection means
WO2016082659A1 (en) * 2014-11-28 2016-06-02 中车青岛四方机车车辆股份有限公司 Train automatic braking control circuit based on bogie instability detection apparatus
CN105083251A (en) * 2014-11-28 2015-11-25 南车青岛四方机车车辆股份有限公司 Train automatic braking control circuit based on bogie unstability detecting devices
CN105923011B (en) * 2016-04-27 2018-08-14 中国铁道科学研究院 Brake monitor with electric redundance control function
CN105923011A (en) * 2016-04-27 2016-09-07 中国铁道科学研究院 Brake controller with electrical redundancy control function
CN106627648A (en) * 2016-10-21 2017-05-10 中车青岛四方车辆研究所有限公司 Locomotive brake controller
CN106553662A (en) * 2016-11-30 2017-04-05 中车青岛四方车辆研究所有限公司 AC drive locomotive brake system electronic control system
CN107097806A (en) * 2016-11-30 2017-08-29 中车青岛四方车辆研究所有限公司 The electronic control system of AC drive locomotive brakes
CN106553662B (en) * 2016-11-30 2018-05-22 中车青岛四方车辆研究所有限公司 AC drive locomotive brake system electronic control system
CN107097806B (en) * 2016-11-30 2019-01-18 中车青岛四方车辆研究所有限公司 The electronic control system of AC drive locomotive braking system
CN107226106A (en) * 2017-06-12 2017-10-03 中车株洲电力机车有限公司 Locomotive and its brake monitor
CN111376945B (en) * 2018-12-27 2022-04-15 中车唐山机车车辆有限公司 Rail train
CN111376945A (en) * 2018-12-27 2020-07-07 中车唐山机车车辆有限公司 Rail train
CN110015317A (en) * 2019-04-23 2019-07-16 中车株洲电力机车有限公司 A kind of brake monitor emergency brake signal synchronism output mechanism
CN112848895A (en) * 2019-11-12 2021-05-28 株洲中车时代电气股份有限公司 Locomotive power supply electrical protection device and control method
CN111497930A (en) * 2020-03-31 2020-08-07 联创汽车电子有限公司 Safety control module and safety control method
CN111439244A (en) * 2020-04-26 2020-07-24 中车青岛四方车辆研究所有限公司 Locomotive electronic brake control system
CN113844425A (en) * 2021-10-12 2021-12-28 中车株洲电力机车有限公司 Locomotive brake, guiding control method of single brake controller of locomotive brake and vehicle
CN113859209A (en) * 2021-10-22 2021-12-31 中车株洲电力机车有限公司 Locomotive brake, single-brake safe control method of single-brake controller and vehicle
CN113942486A (en) * 2021-10-22 2022-01-18 交控科技股份有限公司 Brake fault processing method and signal system
CN113859209B (en) * 2021-10-22 2022-06-14 中车株洲电力机车有限公司 Locomotive brake, single-brake safe control method of single-brake controller and vehicle
CN113879342A (en) * 2021-11-15 2022-01-04 中车株洲电力机车有限公司 Locomotive driver controller and control method thereof

Also Published As

Publication number Publication date
CN100584677C (en) 2010-01-27

Similar Documents

Publication Publication Date Title
CN100584677C (en) Method and equipment for controlling electronic braking controller
WO2021088475A1 (en) Traction control simulation system and traction control method for rail vehicle
CN102596670B (en) The emergency braking apparatus of guideway vehicle
CN101711221B (en) A full hydraulic AC electrical forklift
CN201712599U (en) Electric automobile control system
CN101767583A (en) Pressure control device for equalizing reservoir of motor vehicle
CN105564402A (en) Intelligent control module for locomotive brake train pipe
CN112441073B (en) Urban rail train bypass system
CN201573638U (en) Pressure controlling device for locomotive equalizing reservoir
CN103085799A (en) Pneumatic intelligent electronic parking braking device
CN109866647A (en) A kind of solar energy alternating-current charging pile control system based on HCS08 single-chip microcontroller
CN203032658U (en) Air-pressure type intelligent electrical parking braking device
CN201991861U (en) Integrated valve block for heavy forklift hydraulic system
CN101680501A (en) The clutch actuation device and the control corresponding method that are used for the vehicle manual transmission
CN117141715A (en) Airplane redundancy wheel brake control system and switching method thereof
CN201769695U (en) Structure for controlling vehicle spring energy-storing, parking and braking device
CN201233527Y (en) Hoister control device
CN201923009U (en) Double-brake lamp switching circuit for outputting different signals
CN205769260U (en) A kind of auxiliary braking system for the empty switching valve of numeral electricity
CN202389362U (en) Double-wire train electric pneumatic braking controller
CN110816558B (en) Locomotive sanding automatic control device
CN221775818U (en) Rail transit vehicle and train braking system
CN114030452A (en) Electric wheel type mining dump truck and unmanned driving system thereof
CN201961299U (en) Brake control device of railway vehicle and electronic brake control device
CN217048593U (en) Electric wheel type mining dump truck and unmanned system thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant