Company overview: Automotive + TTEthernet

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Company overview: Automotive + TTEthernet

  1. 1. Ensuring Reliable NetworksCompany Overview &Overview DeterministicEthernetDr. Markus PlankensteinerDirector Industrial Solutionsmarkus.plankensteiner@tttech.comwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 1
  2. 2. Megatrend Safety Ensuring Reliable Networks Safety Becomes Omnipresent • Automotive: 50 million injuries, out of those 1.2 million were fatal injuries (3.300 per day according to WHO 2010) • Industrial: Manufacturers lose over $ 20 billion each year in safety incidents (Norm Gilsdorf, President of Honeywell Process Solutions at Honeywell User Group 2010) • Civil Aviation: In 2010 there were 47.3 million flight hours and 22.3 million departures with 9 serious accidents • Smart and safe mega cities • Medical systems and healthcare for aging populations • By 2020 every second embedded device will be safety relevantwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 2
  3. 3. TTTech Vision based onSafety Platform Ensuring Reliable Networks TTTech Provides Electronic Robustness to a More Electric WorldHigh HighAvailability Reliabilityfor Wind, for SmarterGreen andPower & More ElectricGrid Vehicles onAutomation Land & in the Air Ethernet That Always Delivers www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 3
  4. 4. What do they have in common … Ensuring Reliable Networks Boeing 787 NASA Orion … Reliable Networks and Controls from TTTech Audi A8 Prinoth Leitwolfwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 4
  5. 5. Since 1998 TTTech hasDeveloped Succesfully … Ensuring Reliable Networks TTTech Konzern Betriebsleistung 48% • Unique time-triggered and 35 33 safety know-how pool of 230+ 30 28% 2011 employees 25 22,3 MEUR 20 17,4 • Dynamic growth 2010 15 • Strong equity position 2009 10 • International footprint 5 0 • 16 M€ invest in R&D in 2011 Years • Case study coveragewww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 5
  6. 6. Elements of the TTTechCross-Industry Safety Platform Ensuring Reliable Networks Dependable Modular Communication Safety with Controllers Chip IP, ASIC Cert Packages SafeExe, Cert Package DO-254 DO-178B/C SafeCOM, Safety Manual ISO 61508 SafeMon App. 1 App. 2 App. 3 App. 4 SafeCrossCheck Checkpoint Checkpoint „SafeApp1“ „SafeApp2“ SafeDispatcher E2E-Lib SafeCOM Bootloader OS RTE SafeSelfCheck Checkpoint „SafeCDR“ System Memory Comm. Comm. I/O Complex Services Services Services Services Drivers SafeHAL BSP Tools & Test Equipm. CPU & Safety I/O Blocks & Middleware & Switches Companion Drivers Partition 1 Partition 2 Ta Partition Task Task Task Task 1A 1B 2A 2B 3 sk Partition Partition OS Partition OS 3A OS IMA OS Core TTE-COM Layer Message OS TTE-API 653 ARINC Channel API Library Core OS Services TTE-PCI T R B T Driver HardwareE Cwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 6
  7. 7. Cross-Industry Safety &Certification Ensuring Reliable Networks Design assurance standards are similiar across industries DO 178B / 254 ISO 26262 EN/ISO 13849 IEC 61508 System approaches are different Fail-Stop Fail-Operationalwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 7
  8. 8. Ensuring Reliable Networks Focus Automotivewww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 9
  9. 9. Automotive Production Program ReferenceAudi A8 Ensuring Reliable Networks Communication Software • FlexRay, CAN, LIN, Tools • Performance optimized Communication Safety Software • End-to-end safety on FlexRay and CAN • ISO 26262 ASIL D Process Optimization • Automated ECU Validation • Testbench automation Premium Engineering • 10 Mbit/s physical layer • Stable parameterizing and interoperability • Software integration and prototype support • Diagnostics specification • Representation in FlexRay Consortium Audi A8, A6, A4, … VW Touareg, … Bentley Arnage, Continentalwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 10
  10. 10. Automotive Portfolio Ensuring Reliable Networks Reliable Networks and Safe Communication Reliable Networks and Safe Communication Embedded Safety Safety Hardware for Testing Tools Software E-Vehicles • AUTOSAR Safe up to ASIL D • Modulare Safety Platform • Data Logger • SafeCOM • IEC 61508 / ISO 26262 • FlexRay Tools • SIL 2-3 Networks & Engineeringwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 11
  11. 11. AUTOSAR Safety SoftwareCooperation with Vector Informatik Ensuring Reliable Networks Microsar Safe up to ASIL D with TTTech Safety Modules• Safety Elements out of Context (SEooC) according ISO 26262• TTTech safety modules integrated with Vector MICROSAR AUTOSAR BSW• Certified or certifiable up to ASIL-D• Integration according to Integration Safety Manual (ASM)• AUTOSAR 3.0/1, 4.0, CANbedded, MICROSAR Safewww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 13
  12. 12. Modular Safety ControllerRoadmap Ensuring Reliable Networks Aerospace & Automotive Off-Highway Industrial Railway Special PurposeMarkt ExpertiseModular Safety Controller Roadmap VCU90 ASIL C VCU500 ASIL D ISU500 ASIL D ISO 26262 ISO 26262 ISO 26262 ISU90 ASIL C TTC500 SIL 3 FP ASIL D ISO 26262 EN 13849 Pl E ISO 26262 Automotive ECU TTC100 / TTC200 TTC90 SIL 2 VGSF500 SIL 3 EVECU ASIL D Background IEC 61508 SIL 2/3 EN 13849 Pl D Industrial ISO 26262 1990 2003 2008 2010 2011 2012 Customer Program Hybrid ASIL D ISO 26262 Customer Program Chassis ISO 26262 ASIL D Customer Program EV ISO 26262 ASIL D Customer-Specific Safety Controller Roadmapwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 14
  13. 13. Inverter Safety Unit (ISU) Ensuring Reliable Networkswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 15
  14. 14. Electric Rear Wheel Drive Ensuring Reliable Networks Safety Control Unit • ISO 26262 ASIL-D • Drive function including torque vectoring • Safety algorithms for monitoring • SOP 2015www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 16
  15. 15. Data Logging Solution Ensuring Reliable Networks TTXDataLoggerKey Features • Complete vehicle data logging (all) • Filtered and triggered data logging (selective) • Precise timestamp (1 µs resolution) • Measurement and calibration (CCP / XCP) • API for sending and receiving (freely programmable) • Central access to all bus systems via Ethernet • Multi-step intelligent power management (sleep / deep sleep)www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 17
  16. 16. Ensuring Reliable Networks TTEthernet – SAE AS6802www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 18
  17. 17. Integrated Service Delivery in aSingle Ethernet Network Ensuring Reliable NetworksSynchronous• SAE AS6802 clock synch (IEEE 1588 compatible)• Real-time control• Ultra-low latency• Safety systems Available and SafeStreaming Automotive Ethernet• ARINC 664• Rate-constrained• Audio/video• Sensor fusionEthernet (IP)• IEEE 802.3 standard traffic• Best effort (IP)www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 19
  18. 18. Encapsulated Data Streams for Safetyand Availability Ensuring Reliable Networks ISO 26262 ASIL D (IEC 61508 SIL 3) Data Stream Encapsulation • TTEthernet controls data rates and arrival timing against pre-set allocation Synchronous Traffic tables • Policing of data rates is enforced by the switch Rate Constrained Streaming Traffic • Based on TDMA scheme with Available and Safe clock-synchronization Automotive Ethernet Background raffic Safety Argument Best Efforf • Data streams of different functionality are protected against each other and • Data streams of different criticality are protected against each other • By encapsulationwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 20
  19. 19. Technology Openness Ensuring Reliable Networkswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 21
  20. 20. TTEthernet Algorithms areStandardized with SAE Ensuring Reliable NetworksStandard has been approved!AS6802 "Time-Triggered Ethernet" is published by SAEon November 1, 2011http://www.sae.org/technical/standards/AS6802www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 22
  21. 21. Time-Triggered Networkingwith TTTech Ensuring Reliable Networks "We look forward to realizing the potential of TTEthernet technology development, which provides a high bandwidth• High-integrity, avionics databus capability supporting future technology insertion.“ deterministic NASA statement data network communications across the vehicle• Guaranteed latency and response time for critical sensors and actuatorswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 23
  22. 22. TTEthernet in Safety ManagementSystems for Oil Platforms Ensuring Reliable Networks 100 Mbit/s TTEthernet variant used with software-based endpointswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 24
  23. 23. TTEthernet in Offshore WindTurbines Ensuring Reliable Networkswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 25
  24. 24. Ensuring Reliable Networks Automotive TTEthernet Projectswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 26
  25. 25. OEM Projects (1) Ensuring Reliable Networks• R&D project on validation of TTEthernet for High-Definition (HD)• Lane detection, traffic sign recognition and object recognition• TTEthernet switch with nodes executing TTEthernet stack on top of standard Ethernet controller• Camera application for HD capturing, splitting, cropping, encoding and transmissionwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 29
  26. 26. OEM Projects (2) Ensuring Reliable NetworksProject 2 • Evaluation project with different topologies and traffic loads • Comparison with MOST and standard EthernetProject 3 • Architecture study for infrastructure backbone • Safety-critical and non safety-critical control applications • Simulation model developmentProject 4 • Evaluation of low-latency communication and compatibility with AVBwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 30
  27. 27. OEM Projects (3) Ensuring Reliable NetworksProject 5 • Part 1: compatibility between TTEthernet, AVB and standard Ethernet • Part 2: partitioning, fault isolation and fault-tolerance 2 4 8 1 6 7 TTEthernet TTEthernet Switch Switch ` 3 5 TTEthernet AVBwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 31
  28. 28. Ensuring Reliable Networks What Automotive OEMs Saywww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 33
  29. 29. Ensuring Reliable Networkswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 34
  30. 30. Ensuring Reliable Networkswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 35
  31. 31. Ensuring Reliable Networkswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 36
  32. 32. Ensuring Reliable Networkswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 37
  33. 33. Ensuring Reliable Networkswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 38
  34. 34. Communication Solutions andSafety Electronics for Audi Ensuring Reliable Networks „Leadership in electronics is key for AUDI AG. Therefore, reliable, deterministic communication solutions and safety electronics from TTTech are essential building blocks for our innovation roadmap“ - Ricky Hudi Senior Vice President Electric/Electronic Developmentwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 42
  35. 35. Ensuring Reliable Networks TTEthernet Productswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 48
  36. 36. TTEthernet Products – Overview Ensuring Reliable NetworksChip IP Development Systems • Switches and End Systems • TTEDevelopmentSystem 1 Gbit/s v2.0 • Certification Package (RTCA • TTEDevelopment System 100 Mbit/s DO 254) Configuration & Verification ToolingDevelopment Equipment • TTEBuild, TTE Build NetworkSwitches  TTEDev Switch 1 Gbit/s 12 Ports Configuration  TTEDev Switch 100 Mbit/s A664Endpoints  TTEPMC Card, TTEPCI Card • TTELoad  TTEXMC Card, TTEPCIe Card • TTEViewTest and Simulation Equipment • TTEVerify (certification RTCA DO 178B) • TTEMonitoring Switch 1 Gbit/s 12+1 Embedded Software Ports • TTEProtocol Layer, TTEDriver and TTEAPI • TTEMonitoring System Library • TTEEnd System A664 Dev&Test • TTECOM Layer ARINC 653 • TTESync Librarywww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 49 Page 49
  37. 37. TTEthernet DevelopmentSystems Ensuring Reliable NetworksTTEDevelopment System 100 Mbit/s • TTEDevelopment Switch with 8 x 100 Mbit/s ports • Two end system PCs with software-based TTEthernet as Linux driver • Configuration tools, development tools, TTEthernet API, manuals • Extendable demo application in source codeOrder Number: HE01.00.0www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 50 Page 50
  38. 38. Ensuring Reliable Networks Safe and Available Automotive Ethernetwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 51
  39. 39. Overview Ensuring Reliable Networks• Automotive scenarios• Integration of all traffic classes on Ethernet • Buffering, partitioning • Availability and safety• Compatibility with standard Ethernet and AVB and support for Broadcom PHY and other physical layers• Chip IP and ASIC roadmapwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 52
  40. 40. Automotive AdoptionScenarios for Ethernet Ensuring Reliable Networks HU Front-camera Video GW RSE ECU Diagnosis interface Phase 1: Subsystem Level Phase 2: Architecture Level • Ethernet at subsystem level • Ethernet backbone: integration • Examples: camera links, driver of powertrain, chassis, body, assistance system, multimedia multimedia, driver assistance, … • One Ethernet switch chip per • Two or more Ethernet switch car chips per carwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 53
  41. 41. Ethernet Requirements forPhase 2 Ensuring Reliable NetworksIntegration of all traffic classes on a single network • Standard Ethernet traffic (IP) • Multimedia (audio / video streaming)CAN CAN Radio DVD • Surround sensing (video, radar, …, streaming) • Diagnostics, Car2x (IP) Main Front Main Rear • Control loops (real-time, synchronous) Controller IR Controller Switch RSE Switch Rear Camera Camera (e.g. Chassis (e.g. Gateway) • Safety (real-time, synchronous, ISO 26262 ASIL D) Controller) • … Radar Body Controller FX FXwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 54
  42. 42. Ethernet Requirements forPhase 2 Ensuring Reliable Networks Integration of all traffic classes on a single network • Standard Ethernet traffic (IP) • Multi-Media (audio / video streaming) • Surround sensing (video, radar, …, streaming) • Diagnostics, Car2x (IP) • Control Loops (real-time, synchronous) • Safety (real-time, synchronous, ISO 26262 ASIL D) •… Availability • Different traffic classes must not have adverse impact on each other • Even if one or more senders or switches are faultywww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 55
  43. 43. Compatibility with AVB Ensuring Reliable Networks1. Clock Synchronization • 802.1AS clock synchronization frames can be sourced from AS6802 mechanisms  safety argument2. Traffic Shaping & Bandwidth Allocation • Policing and traffic shaping supported (slight differences between AVB and ARINC 664) • Dynamic bandwidth allocation supported (lockable entries for safety)Next Steps Availability Safety (Partitioning) • AVB compatibility: definition of automotive subset • Opportunity AVB Gen 2: making AVB safe and available (partitioning)www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 60
  44. 44. Ethernet Chip IP Roadmap Ensuring Reliable Networks Phoenix Line Phoenix Switch Phoenix End System • 12x 1000 Mbit/s • 3x 1000 Mbit/s • ARINC 664 p7, SAE AS6802 (2-FT) • AS6802 (2-FT) • Off-chip COM/MON support • ARINC 664 p7 (without UDP/IP) • On-chip mgmt. module • PCI/PCI express Switch Switch (V&V) Switch ASIC • Stratix IV • Stratix IV • 3rd party (ITAR) End System End System (V&V) End System ASIC • Stratix IV • Stratix IV • 3rd party (ITAR) Pegasus Line • 180MHz Pegasus Switch • 768k RAMPegasus End System • 6x 10/100/1000 Mbit/s • 3 MB Flash 3x 10/100/1000 Mbit/s • • 20x 10/100 Mbit/s • 16 PWM, 88DO 254 DAL A / SIL3 / ASIL D • I/O • DO 254 DAL A / SIL3 / ASIL D • SAE AS6802 MAC layer (1-FT) • ARINC 664 p7, SAE AS6802 (2-FT) • ARINC 664 p7 UDP/IP layer • On-/Off-chip COM/MON • Ext. Memory up to 16 MB QDR • Ext. Memory up to 32 MB QDR • 32 bit PCI express, 16 bit A/D • 16 bit A/D Mgmt. CPU I/F Switch (development) Switch (certification) Switch (production) • Altera Stratix IV • Altera Stratix IV • ASIC End System (development) End System (certification) • Altera Cyclone IV • Altera Cyclone IV underavailable planned development 2010 2011 2012 2013 2014 www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 61 Page 61
  45. 45. Chip Roadmap Ensuring Reliable NetworksPhoenix Line (Gen 2) IP • Switch, client: FPGA-based solution available, space, aero and landsystem use (e.g. NASA)Pegasus Line (Gen 3) IP • Fully scalable IP for switch and client (100 Mbit/s and 1 Gbit/s ports) • Safety: ISO 26262 ASIL D, DO 254 DAL A, IEC 61508 SIL 3 • Automotive, industrial and aerospace applications • ASICs planned for 2014 • Compatible with BroadR-Reach© PHY • Prototypes availableSoftware-based clients possible on µCs with Ethernet MACwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 62
  46. 46. Ensuring Reliable Networks Synchronous vs. Asynchronous Communicationwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 63
  47. 47. Ethernet = AsynchronousCommunication Ensuring Reliable Networks XAsynchronous Communication Transmission Points in Time are not predictable  Transmission Latency and Jitter accumulate  Number of Hops has a significant impact Usually solved by High Wire-Speeds & Low Utilization and/or Priorities Problem of ”Indeterminism” remainswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 64
  48. 48. Adding Clock Synchronization to EEthernet TT Ensuring Reliable Networks E TT E TT Eth E TT TT TT E E E TT E TT E TT Eth Time Master 15 88Enabler for Synchronous Operation: 88 15 Synchronized Global Time Eth Communication Schedulewww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 65
  49. 49. Synchronous / Time-TriggeredOperation Ensuring Reliable Networks Time-Division Multiple-Access Communication Composable network Complexity reduction and faster integration Fault tolerant communication system Node A send receive receive t1 t2 t3 Node B receive send receive t1 t2 t3 Node C receive receive send t1 t2 t3 time Slotwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 66
  50. 50. Synchronous Communication (TT) Ensuring Reliable NetworksSynchronous Communication XExactly one order of messages Mi(in contrast to PERM(Mi) in async. comm)www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 67
  51. 51. Single-Master Clock ESynchronization TT Ensuring Reliable Networks E TT E TT Eth E TT TT TT E E E TT E TT E TT Eth Time Master 15 88Enabler for Synchronous Comm.: 88 15 Synchronized Global Time Eth Communication Schedulewww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 68
  52. 52. Fault-Tolerant Clock Synchronization Ensuring Reliable Networks ETime Master TT E TT E TT TT E TT E Eth E TT TT TT ETime Master E E TT E TT E TT Eth Time Master 15 88Fault-tolerant synchronization services 88 15are needed for establishing a safeglobal time base Ethwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 69
  53. 53. Ensuring Reliable Networks TTEthernet Technical Overviewwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 70
  54. 54. Mixed-Criticality Systems Ensuring Reliable Networks Open Networks How to share system resources and partition critical and non-critical distributed Windows PC functions? Windows PC Network TTEthernet Linux ServerStandard IEEE802.3Ethernet LAN F2 F4 F1 F2 F3 F4 F1 F2 F3 F4 F1 F2 F4 Time and space Time and space partitioned OS partitioned OS Time and space Time and space partitioned OS partitioned OS Safety-, Time- or Mission-Critical Systemwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 71
  55. 55. TTEthernet, a CommunicationInfrastructure Ensuring Reliable Networks Highlight: Flexible Integration and COTS Backward Compatible TTE TTE ETH FX TTE TTE CAN FX CAN FX CAN FX CAN <1 Mbit/sec FX < 10 Mbit/sec TTP TTP TTP TTP FX TTE TTE 1 Gbit/sec 100 Mbit/sec TTE TTE TTE TTEwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 72
  56. 56. TTEthernet for Mixed-CriticalitySystems Ensuring Reliable NetworksEnables robust partitioning of all computing andnetworking resources in one system Application • Fault-tolerant distributed clock • Hard real-time communication Layer (µs jitter, fixed latency) 3-7 • Host critical controls, video, audio, LAN, … In parallel, two types of Ethernet communications: Time-Triggered Extension  Synchronous (TDMA-style) Communication: TT  Asynchronous (event-triggered style): RC + BE Ethernet IEEE 802.3www.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 73
  57. 57. Integrated Dataflow Example Ensuring Reliable Networks TT BE TT BE TT BE t Dataflow – Integration 3ms cycle 3ms cycle 3ms cycle - Time-Triggered (TT) - Rate-Constrained (RC) de r - Standard Ethernet (BE) en S 1 Sw it ch /R ou er ter eiv R ec r de en S 2 TT TT RC BE TT TT BE BE TT RC TT TT BE t TT BE BE TT RC TT BE 3ms cycle 3ms cycle 3ms cycle t 2ms cycle 2ms cycle 2ms cycle 2ms cycle 2ms cycle 2ms cycle 2ms cycle 6ms Cluster Cycle TTEthernet Switch is also capable of changing traffic types, e.g. a message received as RC can be relayed as TTwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 74
  58. 58. Example: 1,000 Frames (Industrial-Sized) 1 Ensuring Reliable Networks 2 5 3 Dataflow Links are enumerated 4 6 on the x-axis RC/BE frames are also integrated during TT phases. 12 … RC TT RC TT RC TT RC TT Time-Triggered Only Time-Triggered + Event-Triggeredwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 75
  59. 59. Ensuring Reliable Networks Summarywww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 76
  60. 60. TTEthernet Advantages Ensuring Reliable Networks• Compatible to IEEE 802.3 standard Ethernet • Compatible with other standards (IEEE 1588, ARINC 664 and partially with AVB)• Support for different traffic classes – scalability and flexibility• Fault-isolation: faulty component cannot affect the whole system• Fault-tolerance and redundancy management• Integrated security mechanisms • Protection against masquerading and Denial of Service (DoS)• Fault tolerant clock synchronization including security• Certified mechanisms (clock sync, …)• Integration of many functions/applications in one network• Open technology – published as SAE AS6802 standard, IEEE standardization planned• Mature technology proven in several production programswww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 77
  61. 61. Ensuring Reliable Networks www.tttech.comwww.tttech.com Copyright © TTTech Computertechnik AG. All rights reserved. Page 78

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