EP2759095A1 - Luftfahrttaugliches can bus-system - Google Patents
Luftfahrttaugliches can bus-systemInfo
- Publication number
- EP2759095A1 EP2759095A1 EP12753922.9A EP12753922A EP2759095A1 EP 2759095 A1 EP2759095 A1 EP 2759095A1 EP 12753922 A EP12753922 A EP 12753922A EP 2759095 A1 EP2759095 A1 EP 2759095A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bus
- data
- channel
- subscribers
- master
- 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.)
- Withdrawn
Links
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
- H04L12/40169—Flexible bus arrangements
- H04L12/40176—Flexible bus arrangements involving redundancy
- H04L12/40189—Flexible bus arrangements involving redundancy by using a plurality of bus systems
-
- 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
- H04L12/40019—Details regarding a bus master
-
- 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
- H04L12/403—Bus networks with centralised control, e.g. polling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0264—Arrangements for coupling to transmission lines
- H04L25/0272—Arrangements for coupling to multiple lines, e.g. for differential transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
-
- 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
- H04L2012/4028—Bus for use in transportation systems the transportation system being an aircraft
Definitions
- the invention relates to an aviation capable CAN bus system for increased safety and EMC requirements.
- Aircraft aircraft, rotorcraft, unmanned aerial vehicles (“drone”)
- Safety-critical data eg flight control
- a CAN bus from one or more bus participants in the aircraft etc.
- Very high security requirements are placed on data that lead to loss of the aircraft in the event of faulty transmission and therefore also human lives Usually such data are not (exclusively) transmitted on bus systems.
- the problem solution consists of a CAN bus system with up to 16 participants, which are networked with each other via a dual redundant CAN bus and can exchange data via this CAN bus.
- the bus master and all other bus participants are dual-channel, with each channel providing data independently and simultaneously Read data from the other channel (higher availability and higher security requirements).
- the transmitted user data (within the CAN protocol) are protected by a 16-bit checksum (higher security requirements and reliability).
- the CAN bus with a length of up to 100 m and a speed of up to 500 kbit / s can be operated.
- high electromagnetic load eg injected interference currents of at least 40 mA (unshielded (or defective) cable, or 150 mA (shielded cable, as well as lightning, etc .
- the advantage of this solution is the possibility of transmitting safety critical data in an aircraft even under bad EMC conditions.
- Safety-critical data eg flight control
- a CAN bus from one or more bus participants in the aircraft etc.
- Very high security requirements are placed on data that lead to loss of Fiug réelles in case of faulty transmission and thus endanger human lives. Usually, such data is not (exclusively) transmitted on bus systems.
- the problem solution consists of a CAN bus system with up to 16 subscribers, which are networked together via a dual-redundant CAN bus and can exchange data via this CAN bus.
- the Bus Master and all other bus users are dual-channel, with each channel providing independent data and being able to read the data of the other channel at the same time (higher availability and higher security requirements).
- the transmitted user data (within the CAN protocol) are protected by an additional 16-bit checksum in the data area (in addition to the 16-bit checksum generally contained in the CAN telegram).
- the CAN bus with a length of up to 100 m and a speed of up to 500 kbit / s can be operated.
- high electromagnetic load eg, coupled interference currents of at least 40 mA (unshielded (or defective) cable or 150 mA (shielded cable) Lightning, etc.
- high security no false data
- the mode of operation of this circuit is that the differential useful signals of the CAN bus pass the desired longitudinal signal path through the common mode choke (CMC).
- CMC common mode choke
- the cross signal path through the DMC and the downstream y capacitors is highly impedance-charged for the differential useful signals, since the DMC inductors are effective for the useful signals. This will add an extra capacitive Loading of the CAN bus, by means of the downstream capacitors, effectively prevented.
- the CAN bus architecture consists of a master and up to 15 bus participants, each of which is connected to each other via 2 (or 3) CAN separate CAN buses.
- the CAN buses for channel A and channel B are separated, whereby the bus master can also "cross" access the CAN channels (dashed lines).
- the crossed access serves to increase the availability (reconfiguration) of the CAN bus system. If the CAN buses A and B are polled synchronously, a bus master channel can only read the data of the other bus node channels in order to compare the data of channel A. and channel B to do. This serves to increase data security. If the CAN bus architecture is implemented as 3-channel, a 2 out of 3 decision (2003 voter) can be made via the data of the 3 channels.
- the CAN bus architecture consists of one master and up to 15 bus users.
- the master polls the CAN bus regularly (for example every 25 ms) and retrieves data from all other bus users. Possible status data changes of the bus nodes can be displayed, for example, with one bit in the regularly polled data packets and then queried by the master at the affected bus users.
- the user data are always transmitted with a 16-bit checksum.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Small-Scale Networks (AREA)
- Dc Digital Transmission (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Hardware Redundancy (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011113842 | 2011-09-21 | ||
PCT/EP2012/065928 WO2013041309A1 (de) | 2011-09-21 | 2012-08-15 | Luftfahrttaugliches can bus-system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2759095A1 true EP2759095A1 (de) | 2014-07-30 |
Family
ID=46796536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12753922.9A Withdrawn EP2759095A1 (de) | 2011-09-21 | 2012-08-15 | Luftfahrttaugliches can bus-system |
Country Status (7)
Country | Link |
---|---|
US (1) | US20150029902A1 (de) |
EP (1) | EP2759095A1 (de) |
AU (1) | AU2012311815A1 (de) |
BR (1) | BR112014006852A2 (de) |
CA (1) | CA2849097A1 (de) |
RU (1) | RU2014114897A (de) |
WO (1) | WO2013041309A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107426072A (zh) * | 2017-06-29 | 2017-12-01 | 北京电子工程总体研究所 | 一种can总线冗余重发容错的通讯方法 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9057846B2 (en) * | 2012-07-17 | 2015-06-16 | Teledyne Instruments, Inc. | Systems and methods for subsea optical can buses |
CN103490959B (zh) * | 2013-10-10 | 2016-12-07 | 北京航天发射技术研究所 | 一种双冗余can总线故障检测方法 |
EP3061213B1 (de) * | 2013-10-25 | 2018-06-13 | FTS Computertechnik GmbH | Verfahren zur übertragung von nachrichten in einem computernetzwerk sowie computernetzwerk |
CN104503350B (zh) * | 2014-12-26 | 2017-09-12 | 北京汽车股份有限公司 | 双冗余can总线的实现方法和控制器 |
CN106292589B (zh) * | 2016-08-19 | 2019-01-15 | 北京北航天宇长鹰无人机科技有限公司 | 一种应用于无人机的人工干预的余度管理方法 |
US10263706B2 (en) * | 2017-04-18 | 2019-04-16 | The Boeing Company | Single-fiber bidirectional controller area network bus |
CN109104350A (zh) * | 2017-06-21 | 2018-12-28 | 比亚迪股份有限公司 | 基于CANopen协议的切换收发数据的方法及其设备 |
US11290291B2 (en) * | 2018-07-31 | 2022-03-29 | Analog Devices International Unlimited Company | Power over data lines system with combined dc coupling and common mode termination circuitry |
US11418369B2 (en) * | 2019-08-01 | 2022-08-16 | Analog Devices International Unlimited Company | Minimizing DC bias voltage difference across AC-blocking capacitors in PoDL system |
CN111786866B (zh) * | 2020-09-04 | 2020-11-17 | 成都运达科技股份有限公司 | 多通信总线无缝切换的冗余通信方法 |
EP4294719A1 (de) | 2021-02-19 | 2023-12-27 | Lilium GmbH | Flügelanordnung für ein flugzeug |
EP3998200B1 (de) * | 2021-02-19 | 2024-04-24 | Lilium eAircraft GmbH | Fehlertolerantes flugzeugflugsteuerungssystem |
US11469473B1 (en) | 2021-09-20 | 2022-10-11 | Beta Air, Llc | Systems and methods for redundant electric power for an electric aircraft |
WO2024152015A2 (en) * | 2023-01-13 | 2024-07-18 | Beta Air, Llc | A flight control system and method for an aircraft |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5095291A (en) * | 1990-11-08 | 1992-03-10 | North Hill Electronics, Inc. | Communication filter for unshielded, twisted-pair cable |
DE19509558A1 (de) * | 1995-03-16 | 1996-09-19 | Abb Patent Gmbh | Verfahren zur fehlertoleranten Kommunikation unter hohen Echtzeitbedingungen |
DE10248456A1 (de) * | 2001-10-19 | 2003-06-18 | Denso Corp | Fahrzeugkommunikationssystem |
US7385466B2 (en) * | 2004-03-30 | 2008-06-10 | Matsushita Electric Industrial Co., Ltd. | Differential transmission circuit and common mode choke coil |
US8261100B2 (en) * | 2006-08-30 | 2012-09-04 | Green Plug, Inc. | Power adapter capable of communicating digitally with electronic devices using packet-based protocol |
-
2012
- 2012-08-15 US US14/344,096 patent/US20150029902A1/en not_active Abandoned
- 2012-08-15 RU RU2014114897/08A patent/RU2014114897A/ru not_active Application Discontinuation
- 2012-08-15 BR BR112014006852A patent/BR112014006852A2/pt not_active Application Discontinuation
- 2012-08-15 AU AU2012311815A patent/AU2012311815A1/en not_active Abandoned
- 2012-08-15 WO PCT/EP2012/065928 patent/WO2013041309A1/de active Application Filing
- 2012-08-15 CA CA2849097A patent/CA2849097A1/en not_active Abandoned
- 2012-08-15 EP EP12753922.9A patent/EP2759095A1/de not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2013041309A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107426072A (zh) * | 2017-06-29 | 2017-12-01 | 北京电子工程总体研究所 | 一种can总线冗余重发容错的通讯方法 |
Also Published As
Publication number | Publication date |
---|---|
US20150029902A1 (en) | 2015-01-29 |
BR112014006852A2 (pt) | 2017-10-31 |
CA2849097A1 (en) | 2013-03-28 |
WO2013041309A9 (de) | 2013-05-02 |
WO2013041309A1 (de) | 2013-03-28 |
AU2012311815A1 (en) | 2014-04-03 |
RU2014114897A (ru) | 2015-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20140127 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HEITHECKER, SVEN Inventor name: KUECK, BJOERN Inventor name: TISCHLER, THORSTEN Inventor name: KIRCHNER, MARIAN Inventor name: FRERICHS, TORSTEN Inventor name: HANKE, CARL-HEINZ |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HEITHECKER, SVEN Inventor name: KUECK, BJOERN Inventor name: KIRCHNER, MARIAN Inventor name: FRERICHS, TORSTEN Inventor name: HANKE, CARL-HEINZ Inventor name: TISCHLER, THORSTEN |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20181025 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: AIRBUS DS AIRBORNE SOLUTIONS GMBH |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20190507 |