Automotive Linux Summit 2017 May 31-June 2, 2017, Tokyo, Japan Advances and challenges in remote configuration of connected cars

Transcription

1 Automotive Linux Summit 2017 May 31-June 2, 2017, Tokyo, Japan Advances and challenges in remote configuration of connected cars 2017/6/2 NEC Communication Systems, Ltd. New Technology Development Group Stefan Aust Manager

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3 Content 1. Self-introduction 2. The connected car 1. About connected car 2. AGL and connected car 3. Remote configuration 1. The car gateway 2. Software OTA 4. Car gateway (Proof of Concept) 1. Architecture 2. Challenges 5. Conclusions

4 1. Self-introduction

5 Self-introduction Stefan Aust Working for NEC Communication Systems in Japan since Expert in communication and standardization. Working in the automotive embedded systems Car gateways AVB and TSN Linux OS 5 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

6 2. Motivation The connected car

7 The vehicular target system New solutions for software upgrades are required. Automotive networks: CAN, FlexRay, LIN, MOST, Ethernet Power Train - Engine control - HEV/EV motor - transmission Chassis - Steering/EPS - Brake/ABS - Chassis control ECU Ethernet Safety - Airbag - Safety control ADAS - Collision warning - Parking assistant - Back monitor - Night vision Networking - CAN - LIN - FlexRay - Ethernet - AVB/TSN - Bluetooth IVI - Car audio - Connectivity - Navigation - Entertainment - ITS/GPS 7 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

8 Digital car and need for up-to-date software. Needs and seeds analysis I) Automotive service Over-the-air (OTA) Secure OTA Firmware OTA (FOTA) Service platform Connected vehicles on road 50 Million >250 Million II) Automotive IoT access Car-GW IEEE p D2D/LTE Connected car Software effort 100 Mil LoC challenge 6 Mil LoC car plane 100% car costs challenge 40% SW 8 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

9 3. Remote configuration

10 Connected Car To realize the connected car, a gateway will be installed. OTA server GUI DB access SW upload (secure) LTE/Wi-Fi/Web OTA client RP 3 & AGL Target: -connected car -new GW design Client identification (secure) Gateway CAN CAN RP 3 = Raspberry Pi3 AGL = Automotive Grade Linux CAN = Controller Access Network 10 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

11 I) Software OTA (SOTA) Update strategies Master/Slave Bootloader Secure roll-back Secure home/public WLAN/LTE OTA strategies Userspace A (running) Userspace B Watching Automotive Grade Linux (AGL) Implementation of OTA features Implementation of security features Open source/collaboration PoC Remote configuration setup Security features Presentation to car OEMs 11 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only SOTA infrastructure Sec. OTA client Kernel Bootloader Sec. SW diff. Sec. OTA server 3G/LTE/Wi-Fi Home/public USB X

12 OTA Client/Server architecture OTA Server OTA client Authentication HMI Admin Browser Web server OTA protocol SW loading manager OTA client OTA server Authentication Maintenance Vehicle/Fleet 12 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

13 4. Car Gateway (Proof of Concept)

14 Gateway Architecture (OTA client) LinkBird-MX is available New functionality and features for advanced driver (ADAS) services are needed Over-the-Air (OTA) is needed AGL may provide the required features for remote access. LinkBird-MX + Raspberry Pi 3 Adding required functions if LinkBird does not allow it. AGL offers snapshots for Raspberry Pi 3 Client identification, SW upload ECU/MCU/xCU OTA client OTA server LinkBird-MX (MIPS, 64bit, Microprocessor) Ethernet Raspberry Pi 3 (AGL, Ubuntu, IVI, server/client) Admin System Interface MOST/CAN/Ether/ Serial, Wi-Fi OTA protocol/ Remote Vehicular Interaction (RVI) 14 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

15 SW Platform: Automotive Grade Linux (AGL) EU GENIVI Car software: AUTOSAR Japan AGL One platform for all ECUs, OTA, services Automotive Grade Linux Since Oct AGL Raspberry Pi 3 support Open source Supporter: Japanese OEM, car maker Tizen OS + GENIVI AGL 2.0 (Blowfish) Unified Code Base PoC car-gw setup 15 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

16 Automotive Grade Linux (AGL) Advantages AGL An open source Linux distribution for car OEMs Has many supporters Toyota, Honda, Mazda Denso Fujitsu Panasonic Open source of core features Communication IVI Browser Allows distinct implementations Competitive Less time-consuming Automotive Linux Summit (ALS 2016) 16 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

17 PoC with AGL software HDMI RP3 RP3=Raspberry Pi3 AGL=Automotive Grade Linux HVAC=Heating Ventilation and Air-Conditioning Dashboard HVAC 17 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

18 Remote configuration: OTA client/server communication Config. OTA server OTA client Terra-term Image Name: Linux Image Type: ARM Linux Kernel Checksum..OK Loading Kernel..OK Starting kernel.. Automotive Grade Linux RP3=Raspberry Pi3 OTA client (RP3) Raspberrypi3 login: Kernel messages 18 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

19 OTA and remote OTA server communication OTA Server AGL kernel modification Remote update Server comm. AGL software SW update ACK Software update accomplished Internet/LAN Application 19 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

20 Challenges in remote configuration HW/SW dependencies There may be dependencies given by the target platform architecture CPU/MIPS Kernel version Outdated drivers/libraries Boot-loader Hardware interfaces (J-TAG/bootloader/flashing). Need for entire HW/SW sources/knowlede when using OTA. Example: J-TAG CPU (MIPS) Boot loader I/O SD MEM 20 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

21 OTA prototype realization - Discussion Software AGL is helpful to realize remote configuration of hardware components. Clear strategy in case of SW roll-back is required. Specification of API /client GUI need further development. Hardware Significant slow-down in project realization when HW dependencies exist. GW hardware is different and need different remote update strategies. Deep understanding of the hardware architecture is essential and all source code need to be available, e.g., boot-loader, kernel updates, etc. 21 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

22 5. Conclusions

23 Conclusions There is an increased need for connected vehicles and remote configuration of car software. Increased of software recall can be solved by over-the-air (OTA) communication. Automotive Grade Linux aims to modernize and prepare the connected car with flexible, scalable and secure remote configuration. AGL supports OTA and remote configuration of IVI systems. Open source projects will help the adoption of OTA technology in automotive markets. However, a strong hardware/software dependency can be challenging. 23 NEC Communication Corporation 2015 Systems 2017 NEC Group Internal Use Only

24 Thank you! Questions & Answers

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