CN106856445B - Motor train unit braking system and working method thereof - Google Patents
Motor train unit braking system and working method thereof Download PDFInfo
- Publication number
- CN106856445B CN106856445B CN201710075420.XA CN201710075420A CN106856445B CN 106856445 B CN106856445 B CN 106856445B CN 201710075420 A CN201710075420 A CN 201710075420A CN 106856445 B CN106856445 B CN 106856445B
- Authority
- CN
- China
- Prior art keywords
- ethernet
- gateway
- request message
- transmits
- response message
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40293—Bus for use in transportation systems the transportation system being a train
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a motor train unit braking system and a working method thereof. This EMUs braking system is connected to at least one external equipment, includes: a plurality of brake electronic control systems connected to each other through an ethernet; wherein, each braking electronic control system all includes: an Ethernet gateway; the Ethernet gateway and the plurality of board cards are connected to an internal controller local area network gateway bus; the external equipment transmits the request message to an Ethernet gateway in each brake electronic control system through Ethernet, and the Ethernet gateway transmits the request message to a plurality of board cards through an internal controller local area network gateway bus; the board receives the request message, generates a response message containing the internal data of the board, transmits the response message to the Ethernet gateway through the internal controller local area network gateway bus, and transmits the response message to the external equipment through the Ethernet. The method is beneficial to improving the communication bandwidth and the transmission rate of the braking system of the motor train unit and reducing the maintenance cost.
Description
Technical Field
The invention relates to the field of brake systems, in particular to a brake system of a motor train unit and a working method of the brake system.
Background
At present, a train unit braking system mainly adopts a TCN network to construct a communication network, consists of a twisted wire train bus WTB and a multifunctional vehicle bus MVB, and is suitable for train vehicles needing dynamic marshalling. With the rapid development of the brake system of the motor train unit, the intelligent degree is higher and higher, the data transmission quantity is larger and larger, the TCN network cannot adapt to the new development requirements of the brake system of the motor train unit in the aspects of bandwidth, transmission rate, cost and the like, and the working method of the existing brake system of the motor train unit cannot adapt to the development requirements of the brake system of the motor train unit.
Disclosure of Invention
The embodiment of the invention mainly aims to provide a motor train unit braking system to solve the problems of low communication bandwidth, low transmission rate and high maintenance cost of a TCN (train control network) in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a brake system for a motor train unit, connected to at least one external device, including: a plurality of brake electronic control systems connected to each other through an ethernet; wherein the content of the first and second substances,
each brake electronic control system includes:
an Ethernet gateway;
the Ethernet gateway and the plurality of board cards are connected to an internal controller local area network gateway bus;
the external equipment transmits the request message to an Ethernet gateway in each brake electronic control system through Ethernet, and the Ethernet gateway transmits the request message to a plurality of board cards through an internal controller local area network gateway bus;
the board receives the request message, generates a response message containing the internal data of the board, transmits the response message to the Ethernet gateway through the internal controller local area network gateway bus, and transmits the response message to the external equipment through the Ethernet.
In one embodiment, the method further comprises the following steps:
the switch is arranged on the Ethernet and provides interfaces for external equipment and a plurality of brake electronic control systems;
the switch transmits a request message from the external device to the ethernet gateway of each brake electronic control system via the ethernet network, and transmits a response message from the ethernet gateway to the external device.
In one embodiment, the ethernet gateway is configured to convert ethernet standard frame format data to controller area network standard frame format data or vice versa.
In one embodiment, the ethernet is used to transport ethernet standard frame format data and the inter-controller area network gateway bus is used to transport controller area network standard frame format data.
In one embodiment, when the request message is a diagnosis request message, the response message is a diagnosis response message;
when the request message is a calibration request message, the response message is a calibration response message;
the Ethernet and the gateway bus of the inner controller area network transmit a diagnosis request message or a diagnosis response message through a DOIP communication protocol;
the Ethernet transmits a calibration request message or a calibration response message through an XCP communication protocol, and the internal controller local area network gateway bus transmits the calibration request message or the calibration response message through a CCP communication protocol.
In one embodiment, when the board is a fault board, a diagnosis response message containing fault data with a timestamp is generated after the diagnosis request message is received;
the ethernet gateway is also used to store time-stamped fault data.
In one embodiment, before each brake electronic control system is connected to the Ethernet, communication parameters of the Ethernet gateway are set by external equipment;
the communication parameters include: IP address, physical address, subnet mask, and default gateway.
By means of the technical scheme, the motor train unit braking system provided by the embodiment of the invention has the advantages that the plurality of braking electronic control systems are mutually connected through the Ethernet gateway, the communication bandwidth and the transmission rate of the motor train unit braking system are favorably improved, and the maintenance cost of the motor train unit braking system is effectively reduced.
The embodiment of the invention also provides a working method of the motor train unit braking system, so as to solve the problem that the working method of the motor train unit braking system in the prior art cannot adapt to the development requirement of the motor train unit braking system.
In order to achieve the above object, an embodiment of the present invention further provides a working method of a brake system of a motor train unit, including:
the Ethernet gateway receives a request message from external equipment through the Ethernet and transmits the request message to a plurality of board cards through an internal controller local area network gateway bus;
the board card receives the request message, generates a response message containing the internal data of the board card according to the request message, and transmits the response message to the Ethernet gateway through the internal controller local area network gateway bus;
the Ethernet gateway receives the response message and transmits the response message to the external equipment through the Ethernet.
In one embodiment, the receiving, by the ethernet gateway, the request message from the external device via the ethernet network includes: the switch transmits a request message from external equipment to an Ethernet gateway of each brake electronic control system through the Ethernet, and the Ethernet gateway receives the request message;
the Ethernet gateway receives the response message, and transmits the response message to the external device through the Ethernet, and the method comprises the following steps: the Ethernet gateway transmits the response message to the switch through the Ethernet, and the switch receives the response message and transmits the response message from the Ethernet gateway to the external equipment.
In one embodiment, the ethernet gateway receives a request message from an external device through an ethernet network, and transmits the request message to a plurality of boards through an internal controller area network gateway bus, including: the Ethernet gateway receives a request message from external equipment, converts the Ethernet standard frame format data carried by the request message into controller local area network standard frame format data, and transmits the request message carrying the controller local area network standard frame format data to a plurality of board cards through an internal controller local area network gateway bus;
the Ethernet gateway receives the response message, and transmits the response message to the external device through the Ethernet, and the method comprises the following steps: the Ethernet gateway receives the response message, converts the controller area network standard frame format data carried by the response message into Ethernet standard frame format data, and transmits the response message carrying the Ethernet standard frame format data to the external equipment through the Ethernet.
By means of the technical scheme, the working method of the motor train unit braking system provided by the embodiment of the invention can adapt to the development requirements of the motor train unit braking system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a block diagram of a braking system of a motor train unit according to an embodiment of the invention;
FIG. 2 is a block diagram of one embodiment of a braking system of the motor train unit according to the embodiment of the invention;
FIG. 3 is a flow chart of an operating method of the brake system of the motor train unit in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In view of the fact that the existing TCN network cannot meet the new development requirements of the brake system of the motor train unit in the aspects of bandwidth, transmission rate, cost and the like, the embodiment of the invention provides the brake system of the motor train unit, and the multiple brake electronic control systems are connected with one another through the Ethernet, so that the communication bandwidth and the transmission rate of the brake system of the motor train unit are improved, and the maintenance cost of the brake system of the motor train unit is effectively reduced. The present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 is a structural block diagram of a brake system of a motor train unit in an embodiment of the invention. As shown in fig. 1, the brake system of the motor train unit is connected to at least one external device, and includes: a plurality of Electronic Brake Control Systems (EBCUs) connected to each other via an ethernet network; wherein, each braking electronic control system all includes: an Ethernet gateway; the plurality of boards, the Ethernet gateway and the plurality of boards are all connected to an internal controller area network gateway bus (internal CAN bus).
When the method is specifically implemented, the motor train unit braking system completes data interaction with external equipment in the following mode: the external equipment transmits the request message to an Ethernet gateway in each brake electronic control system through Ethernet, and the Ethernet gateway transmits the request message to a plurality of board cards through an internal CAN bus. The board card receives the request message, generates a response message containing the internal data of the board card, transmits the response message to the Ethernet gateway through the internal CAN bus, and the Ethernet gateway transmits the response message to the external equipment through the Ethernet.
In an embodiment, the ethernet gateway may convert a frame format of the packet carrying data, convert the data in the ethernet standard frame format into data in a Controller Area Network (CAN) standard frame format, or convert the data in the CAN standard frame format into data in the ethernet standard frame format. The Ethernet is used for transmitting data in Ethernet standard frame format, and the internal CAN bus is used for transmitting data in CAN standard frame format.
During specific implementation, the ethernet gateway receives a request message from an external device, converts ethernet standard frame format data carried by the request message into CAN standard frame format data, and then transmits the request message carrying the CAN standard frame format data to a plurality of board cards through an internal CAN bus. And the Ethernet gateway receives the response message, converts the CAN standard frame format data carried by the response message into Ethernet standard frame format data, and transmits the response message carrying the Ethernet standard frame format data to the external equipment through the Ethernet.
FIG. 2 is a block diagram of a brake system of a motor train unit according to an embodiment of the invention. As shown in fig. 2, the brake system of the motor train unit further includes: and the exchanger is arranged on the Ethernet and provides interfaces for external equipment and a plurality of brake electronic control systems. In specific implementation, the switch transmits a request message from the external device to the ethernet gateway of each brake electronic control system through the ethernet, and transmits a response message from the ethernet gateway to the external device.
In an embodiment, the message is a diagnostic message or a calibration message. When the message is a diagnosis message, the Ethernet transmits the diagnosis request message to the Ethernet gateway through the DOIP communication protocol, and then the internal CAN bus transmits the diagnosis request message to each board card through the DOIP communication protocol, so as to realize the downloading of the program in the brake electronic control system. Meanwhile, each board card generates a diagnosis response message containing the internal data of the board card according to the diagnosis request message, and the diagnosis response message is transmitted to external equipment through the Ethernet and an internal CAN bus through a DOIP communication protocol, so that the external equipment CAN read the internal data of the board card, control an IO interface of the board card, diagnose the fault of the board card and the like. The external device can be a service terminal (such as a computer) and a component of other systems (such as a traction system) of the motor train unit.
In specific implementation, when a fault occurs in the board card, the fault board card generates a diagnosis response message containing fault data with a timestamp after receiving the diagnosis request message. The ethernet gateway will store the time-stamped fault data first and then transmit the time-stamped fault data to the external device via the ethernet.
When the message is a calibration message, the Ethernet transmits a calibration request message to the Ethernet gateway through an XCP communication protocol, and then transmits the calibration request message to each board card through an internal CAN bus through a CCP communication protocol, so as to realize the program downloading in the brake electronic control system. Meanwhile, each board card generates a calibration response message containing the internal data of the board card according to the calibration request message, the internal CAN bus transmits the calibration response message to the Ethernet gateway through a CCP communication protocol, and then the Ethernet transmits the calibration response message to external equipment through an XCP communication protocol so as to measure the data in the board card in parallel and perform internal parameter calibration and the like.
The motor train unit comprises a plurality of motor trains and a plurality of trailers, and a plurality of brake electronic control systems are mounted on each motor train or each trailer. The motor train unit braking system provided by the embodiment of the invention can obtain the braking control speed of the motor train unit or the trailer, and can adjust the braking capacity and the braking distance of the vehicle braking system by calibrating the parameter of the braking control speed. The calibrated parameters further comprise the rotational inertia of the wheels, the friction coefficient of the basic brake friction pair and the like. In the embodiment, when the wheels of the train are changed (for example, the diameter of the wheels is changed due to wheel abrasion), the rotational inertia of the wheels can be adjusted in time through parameter calibration, so that the braking force of the train can be calculated more accurately.
In an embodiment, before each brake electronic control system is connected to the ethernet, the communication parameters of the ethernet gateway are set by an external device, including: IP address, physical address, subnet mask, default gateway, etc. The communication parameters of each Ethernet gateway are different from each other, so that the condition that the whole communication of the Ethernet is influenced by the same communication parameters after the brake electronic control system is accessed to the Ethernet is avoided.
In an embodiment, the ethernet gateway may be a 32-bit fsc based on missicara SPC 5675K. The motor train unit brake system has the Ethernet communication interface and the CAN communication interface, realizes interconnection and intercommunication in the motor train unit brake system, has low overall hardware cost, reliable work and strong universality, meets the requirements of a motor train unit brake system vehicle control mode, and has practical application value.
In summary, the motor train unit braking system provided by the embodiment of the invention can enable a plurality of braking electronic control systems to be connected with each other through the Ethernet gateway, thereby being beneficial to improving the communication bandwidth and the transmission rate of the motor train unit braking system and effectively reducing the maintenance cost of the motor train unit braking system. Furthermore, the invention also arranges the exchanger on the Ethernet to provide interfaces for the external equipment and the plurality of brake electronic control systems, so as to incorporate more brake electronic control systems into the brake system of the motor train unit, thereby facilitating the centralized control of the brake electronic control systems by the external equipment and improving the working efficiency.
Based on the same inventive concept, the embodiment of the invention also provides a working method of the brake system of the motor train unit, which is described in the following embodiment. Because the principle of solving the problems by the method is similar to that of a brake system of the motor train unit, the implementation of the method can refer to the brake system of the motor train unit, and repeated parts are not described again.
FIG. 3 is a flow chart of an operating method of the brake system of the motor train unit in the embodiment of the invention. As shown in fig. 3, the method may include:
step 101: the Ethernet gateway receives a request message from external equipment through the Ethernet and transmits the request message to a plurality of board cards through an internal controller local area network gateway bus.
Step 102: the board receives the request message, generates a response message containing the internal data of the board according to the request message, and transmits the response message to the Ethernet gateway through the internal controller local area network gateway bus.
Step 103: the Ethernet gateway receives the response message and transmits the response message to the external equipment through the Ethernet.
In an embodiment, the receiving, by the ethernet gateway, the request packet from the external device through the ethernet may include: the switch transmits the request message from the external equipment to the Ethernet gateway of each brake electronic control system through the Ethernet, and the Ethernet gateway receives the request message.
Receiving, by the ethernet gateway, the response packet, and transmitting the response packet to the external device through the ethernet network may include: the Ethernet gateway transmits the response message to the switch through the Ethernet, and the switch receives the response message and transmits the response message from the Ethernet gateway to the external equipment.
In an embodiment, the receiving, by the ethernet gateway, the request packet from the external device through the ethernet, and transmitting the request packet to the plurality of boards through the internal controller area network gateway bus may include: the Ethernet gateway receives a request message from external equipment, converts the Ethernet standard frame format data carried by the request message into controller area network standard frame format data, and transmits the request message carrying the controller area network standard frame format data to a plurality of board cards through an internal controller area network gateway bus.
Receiving, by the ethernet gateway, the response packet, and transmitting the response packet to the external device through the ethernet network may include: the Ethernet gateway receives the response message, converts the controller area network standard frame format data carried by the response message into Ethernet standard frame format data, and transmits the response message carrying the Ethernet standard frame format data to the external equipment through the Ethernet.
In conclusion, the working method of the brake system of the motor train unit provided by the embodiment of the invention can adapt to the development requirement of the brake system of the motor train unit.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A motor train unit braking system connected to at least one external device, comprising: a plurality of brake electronic control systems connected to each other through an ethernet; wherein the content of the first and second substances,
each brake electronic control system includes:
an Ethernet gateway;
the Ethernet gateway and the board cards are connected to an internal controller area network gateway bus;
the external equipment transmits a request message to an Ethernet gateway in each brake electronic control system through the Ethernet, and the Ethernet gateway transmits the request message to the plurality of board cards through the internal controller area network gateway bus;
the board card receives the request message, generates a response message containing internal data of the board card, and transmits the response message to an Ethernet gateway through an internal controller area network gateway bus, and the Ethernet gateway transmits the response message to the external equipment through the Ethernet;
the Ethernet gateway is used for converting the data in the Ethernet standard frame format into the data in the controller area network standard frame format, or converting the data in the controller area network standard frame format into the data in the Ethernet standard frame format;
when the request message is a diagnosis request message, the response message is a diagnosis response message;
when the request message is a calibration request message, the response message is a calibration response message;
the Ethernet and the gateway bus of the inner controller area network transmit the diagnosis request message or the diagnosis response message through a DOIP communication protocol;
the Ethernet transmits the calibration request message or the calibration response message through an XCP communication protocol, and the internal controller area network gateway bus transmits the calibration request message or the calibration response message through a CCP communication protocol;
when the board card is a fault board card, generating a diagnosis response message containing fault data with a timestamp after receiving the diagnosis request message;
the Ethernet gateway is also used for storing the fault data with the time stamp.
2. The motor train unit braking system of claim 1, further comprising:
the switch is arranged on the Ethernet and provides interfaces for the external equipment and the plurality of brake electronic control systems;
the switch transmits a request message from the external equipment to an Ethernet gateway of each brake electronic control system through Ethernet, and transmits the response message from the Ethernet gateway to the external equipment.
3. The motor train unit brake system of claim 1,
the Ethernet is used for transmitting data in Ethernet standard frame format, and the internal controller area network gateway bus is used for transmitting data in controller area network standard frame format.
4. The motor train unit brake system of claim 1,
before each brake electronic control system is connected to the Ethernet, communication parameters of the Ethernet gateway are set through external equipment;
the communication parameters include: IP address, physical address, subnet mask, and default gateway.
5. An operating method applied to the brake system of the motor train unit according to any one of claims 1 to 4, characterized by comprising the following steps:
the Ethernet gateway receives a request message from external equipment through Ethernet and transmits the request message to the plurality of board cards through an internal controller area network gateway bus;
the board card receives the request message, generates a response message containing board card internal data according to the request message, and transmits the response message to the Ethernet gateway through an internal controller local area network gateway bus;
the Ethernet gateway receives the response message and transmits the response message to the external equipment through the Ethernet;
the ethernet gateway receives a request message from an external device through an ethernet, and transmits the request message to the plurality of boards through an internal controller area network gateway bus, including: the Ethernet gateway receives a request message from external equipment, converts the Ethernet standard frame format data carried by the request message into controller local area network standard frame format data, and transmits the request message carrying the controller local area network standard frame format data to the plurality of board cards through an internal controller local area network gateway bus;
the receiving, by the ethernet gateway, the response packet, and transmitting the response packet to the external device through the ethernet network includes: and the Ethernet gateway receives the response message, converts the controller area network standard frame format data carried by the response message into Ethernet standard frame format data, and transmits the response message carrying the Ethernet standard frame format data to the external equipment through the Ethernet.
6. The method for operating a brake system for a motor train unit according to claim 5,
the ethernet gateway receives a request message from an external device through the ethernet, including: the method comprises the following steps that a switch transmits a request message from external equipment to an Ethernet gateway of each brake electronic control system through an Ethernet, and the Ethernet gateway receives the request message;
the receiving, by the ethernet gateway, the response packet, and transmitting the response packet to the external device through the ethernet network includes: and the Ethernet gateway transmits the response message to the switch through the Ethernet, and the switch receives the response message and transmits the response message from the Ethernet gateway to the external equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075420.XA CN106856445B (en) | 2017-02-13 | 2017-02-13 | Motor train unit braking system and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075420.XA CN106856445B (en) | 2017-02-13 | 2017-02-13 | Motor train unit braking system and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106856445A CN106856445A (en) | 2017-06-16 |
| CN106856445B true CN106856445B (en) | 2020-11-06 |
Family
ID=59125066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710075420.XA Active CN106856445B (en) | 2017-02-13 | 2017-02-13 | Motor train unit braking system and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106856445B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450518A (en) * | 2017-08-16 | 2017-12-08 | 北京车和家信息技术有限责任公司 | A kind of program upgrade apparatus and its control method based on vehicle-mounted Ethernet framework |
| CN109669442B (en) * | 2018-12-25 | 2022-02-22 | 深圳市元征科技股份有限公司 | Protocol conversion method and conversion device |
| CN110962778A (en) * | 2019-11-28 | 2020-04-07 | 安徽江淮汽车集团股份有限公司 | Gateway device of automobile and automobile |
| CN114715091A (en) * | 2022-04-24 | 2022-07-08 | 刘尧 | Subway vehicle braking system optimization method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967475A (en) * | 2012-12-06 | 2013-03-13 | 唐山轨道客车有限责任公司 | Detection test system |
| CN204272154U (en) * | 2014-12-31 | 2015-04-15 | 北京纵横机电技术开发公司 | The Ethernet switch of EMU network system |
| CN105407027A (en) * | 2014-05-28 | 2016-03-16 | 中车大连电力牵引研发中心有限公司 | Train network control system |
-
2017
- 2017-02-13 CN CN201710075420.XA patent/CN106856445B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967475A (en) * | 2012-12-06 | 2013-03-13 | 唐山轨道客车有限责任公司 | Detection test system |
| CN105407027A (en) * | 2014-05-28 | 2016-03-16 | 中车大连电力牵引研发中心有限公司 | Train network control system |
| CN204272154U (en) * | 2014-12-31 | 2015-04-15 | 北京纵横机电技术开发公司 | The Ethernet switch of EMU network system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106856445A (en) | 2017-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106856445B (en) | Motor train unit braking system and working method thereof | |
| KR102320043B1 (en) | Failure diagnosis apparatus and method for in-vehicle control unit | |
| CN102393738B (en) | Diagnostic device and test method of automobile electronic control unit (ECU) | |
| DE102017121049A1 (en) | A communication method based on a vehicle safety integrity level in the vehicle network, and apparatus for the same | |
| CN110768882B (en) | Data monitoring method and system, monitoring equipment and vehicle | |
| CN110908363A (en) | Data acquisition method and device for vehicle-mounted terminal | |
| CN201638076U (en) | Vehicle-mounted diagnosis device based on CAN (Content Addressable Network) bus | |
| CN112187936B (en) | Vehicle data processing method, device, equipment, storage medium and vehicle | |
| CN103827760A (en) | Method for transmitting a process map via a gateway device | |
| CN114839959A (en) | Vehicle remote diagnosis method and system based on SOA (service oriented architecture) service | |
| WO2023016241A1 (en) | Method, apparatus, and system for remotely diagnosising vehicle | |
| CN111552268A (en) | Vehicle remote diagnosis method, equipment connector and vehicle connector | |
| CN112684780A (en) | Control panel interface assembly for railway locomotive | |
| Kim et al. | Performance evaluation of node-mapping-based flexray-can gateway for in-vehicle networking system | |
| CN111615079B (en) | Rail vehicle and ground wireless communication method | |
| CN111327575A (en) | Communication method and device based on Ethernet in train | |
| Elhadeedy et al. | ECU over named data networking (ECUoNDN): Data management and integration with heterogenous automotive networks | |
| CN116567020A (en) | System for realizing remote XCP calibration | |
| CN114422294B (en) | Device for data interaction between FlexRay bus and BLVDS bus | |
| KR101578065B1 (en) | Method for packaging controller area networks packet and apparatuses using the same | |
| JP2015039924A (en) | On-vehicle network system | |
| CN113291351B (en) | Train formation, train data transmission method and device, and storage medium | |
| CN206436995U (en) | The motor vehicle braking system of application controller LAN gateway | |
| CN107528758A (en) | A kind of high-speed CAN bus data conversion device and its conversion method | |
| KR20170029945A (en) | Operation method of communication node in network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |