The Telecommunication Technology CommitteeShiba Kouen Denki Building

1-1-12, Shiba Kouen, Minato-ku, Tokyo 105-0011, JapanTEL: 81-3-3432-1551 FAX: +81-3-3432-1553

3 September 2018

Source: Working Group on Connected CarTelecommunication Technology Committee, Japan

Title: Activity Report of TTC Working Group on Connected Car

Purpose: Information

DOCUMENTFor action to:For comment to:For information to: CITS Meeting, 7 September 2018, Nanjing, China

Approval: Chaiman of Working Group on Connected Car

Contact: Yasubumi ChimuraOki Electric Industry Co., Ltd. Japan

Tel:Email: chimura730@oki. com

Contact: Seigou KotaniFujitsu Limited, Japan

Tel:Email: skotani@jp.fujitsu.com

Contact: Hideki YamamotoOki Electric Industry Co., Ltd. Japan

Tel:Email: yamamoto436@oki. com

1. Summary

TTC is an incorporated association that contributes to standardization activities in the filed of information and communication technology (ICT) by developing and disseminating standards for information and communication networks. The working group on Connected car (WG-Connected Car) in TTC was established to discuss connected car related issues. This report describes the recent activitis of WG-Connected car, regarding vehicle hub (V-HUB) and reprogramming for vehicle.

2. Status of V-HUB

TTC had been proposed “Information and Communication System using Vehicle during Disaster (V-HUB)” to Asia-Pacific Telecommunity Standardization Program (ASTAP) since 2014. The requirements for V-HUB was published as an APT report in 2015 [1]. After that, we started the standardization of the V-HUB system in ASTAP and drafted APT Recommendation “Information and Communication System using Vehicle during Disaster (V-HUB)”. It was adopted in ASTAP-30 (Bangkok, Thailand, May 2018) and was endorsed by the following fifteen APT member administrations during six week adoption period: P.R. China, Islamic Republic of Iran, Japan, Republic of Korea, Lao PDR, Micronesia, Mongolia, Myanmar, Palau, Papua New Guinea, Philippines, Solomon Islands, Sri Lanka, Viet Nam and Thailand. As the number of endorsements is enough to proceed to the next step, the draft APT Recommendation will be sent to the 42nd Session of the Management Committee of the Asia-Pacific Telecommunity (MC-42), which is scheduled to be held from 9 to 12 October 2018 in Ulaanbaatar, Mongolia, for final approval.

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In order to spread V-HUB, we are planning to demonstrate V-HUB in the next ASTAP-31, , which is tentatively scheduled to be held in June 2019 in Japan. Figure 1 shows overview of V-HUB

Figure 1: Overview of Information and Communication System using Vehicle during Disaster (V-HUB)

3. Status Report of OTA reprograming for vehicles

3.1. Overview of task force on auto OTA updating

Based on the movements and requirements such as OTA (Over The Air) reprogramming for vehicles at recall problems and so on, TTC WG-Connected car set up a task force on auto OTA updating (TFAOU) on May 2017 and assigned Dr. Seigou Kotani (Fujitsu, and TCG (Trusted Computing Group)) as the leader of TFAOU.

TFAOU gathered the information about OTA reprogramming, regulations, guidelines, future plans, on vehicle level, system level and module level from lots of organizations in the world such as SAE, UNECE WP29 ITS/AD TFCS, U.S.DOT/NHTSA, 5GAA, ACEA, ITU-T SG16, -SG17, ISO TC22, -TC204, IEEE 802, Wi-Fi Alliance, W3C, Bluetooth SIG, oneM2M, TCG, EVITA, and HIS, through the connections/relations/knowledge of individual members of TFAOU by the end of September 2017.

Based on the information gathered, TFAOU created a draft report of “Over The Air updating in vehicle” and had a meeting on 14 November 2017 as one of TTC official seminars. At the seminar with around 80 audiences, TFAOU received lots of comments and opinions for the draft report, and recognized the huge anticipated value from the attendees.

After the meeting, TFAOU revised the draft report based on the comments and opinions and TTC published “Current standardization movement and issues before practical use for Over The

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Air updating in vehicle” as Technical Report TR-1068 on 11 December 2017 [2].

We believe OTA reprogramming issues in this report will be useful for someone who are interested in OTA reprogramming issues for the future standardization in this area.

3.2. Overview of TR-1068

3.2.1. Techinal Scope of TR-1068[2]

Figure 2 is excerpted from Session 2 in [2]. It shows the technical scope of this report. Operations through the OTA sever are our target in this report.

G/WTCU ﾅﾋﾞ

ECU1 ECU2

HUD

OBDⅡ

OTAサーバ

診断ツール

セルラー回線(3G/ LTEなど)

CANなど

車載ネットワーク（CANなど）

Red dotted line shows wired reprogramming. Yellow dotted lines show OTA reprogram,

Figure 2: Examples for reprogramming

3.2.2. An example for the exact facts as regulations

Figure 3 appears in the session 3.3 in the report. It shows that US government, U.S.DoT/NHTSA, has started makin the exact regulations for OTA reprogramming.

OTA Server

Cellular line(3G/LTE)

Vehicule network (CAN, etc.)

CAN, etc.Diagnostic tool

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Figure 3: Atutomated driving systems 2.0 by National Highway Traffic Safety Administration (NHTSA)

3.2.3. Summarize statuses of current proposals for the regulations

Figure 4 was excerpted from Figure in section 5.1 in [2]. This should be one of suitable proposals for OTA reprogramming on vehicle software. As TPM (Trusted Platform Module) has over 10-year history in PC and sever system as the key technology for updating procedure, OTA updating procedure which is based on TPM might has value for the issue.

Head Unit / Gateway

HW

4 Core < RAM

OS

Others

Applications

TPM

Head Unit / Gateway

HW

1~2 core RAM

OS

Others

Applications

TPM

ECU

HW1 core RAM

Others

Application

TPM

ECU

HW1 core RAM

Others

Application

TPM

ECU

HW1 core RAM

Others

Application

TPM

More resources, Auto-Rich

Limited resources,Auto-Thin

Figure 4: An example for ECU using Trusted Platform Module (TPM)

Reference:

[1] APT REPORT on “REQUIREMENTS OF INFORMATION AND COMMUNICATION SYSTEM USING VEHICLE DURING DISASTER”, No. APT/ASTAP/REPT-21, September 2015.

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https://www.apt.int/sites/default/files/Upload-files/ASTAP/APT-ASTAP-REPT-21_APT_Report_Vehicle_during_Disaster.docx

[2] TTC Techincal Report TR-1068 “Current standardization movement and issues before practical use for Over The Air updating in vehicle (in Japanese)”, 11 December 2017.

https://www.ttc.or.jp/jp/document_list/pdf/j/TR/TR-1068v1.pdf

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