/
AA SIG - VHAL / Vehicle Data APIs - Meeting Minutes

Get Involved

◎ COVESA Community Calendar
◎ COVESA Getting Started
◎ Understanding and Engaging in COVESA
◎ Project Launch Process

Groups and Projects

Groups and Projects continued...

◎ Vehicle Signal Specification (VSS)
◎ AOSP App Framework
◎ Commercial Vehicle and Fleet Group
◎ Generative AI Group
◎ Central Data Service Playground

◎ Vehicle Data Model
◎ Cyberecurity Group
◎ In-Vehicle Payments Group
◎ Connected Safety
◎ All Groups and Projects

Resources

◎ COVESA Events
◎ Industry Events 2025
◎ Antitrust and Open Statement
◎ Member Visibility

Join/Sign Up

◎ Join COVESA
◎ Sign Up for Member Newsletter
◎ Request Wiki Account
◎ Request Access to Slack

AA SIG - VHAL / Vehicle Data APIs - Meeting Minutes

Oct 19, 2021

Current thread (from February 2021 on-wards): investigates this architecture

Previous thread (until January 2021) : External Data Server Proof-Of-Concept - Work Breakdown Structure

Next Meeting - VHAL / Vehicle Data APIs weekly call - every Tuesdays - 17:00-18:00 CET (except when replaced by the monthly All-Hands)

Meeting Information

JOIN ZOOM MEETING

Zoom link
meeting ID  : 993 7365 2562
 password: Vhal!21
local dial-in numbers: https://zoom.us/u/aqC5ms8E7

Agenda

Backlog

Backlog

  • Android Compatibility Definition Document

  • Software architectural task force : Vehicle Data architecture for Android

  • Comparison of how vehicle properties are managed by Android 9 and 10 (Q) - further inputs

  • question to address in the group: what do participating companies intend to do with the JAPI (Java API similar to CommonAPI for Android) ? this building block is currently missing

  • Signal to service translation

  • Secure access control in Some/IP

Tuesday 3 August – 5:00 PM CEST

  • Bittium and Tieto participants are back from vacation

  • Stefan delivers a recap on the plan for the demo for the upcoming AMM

  • then Stefan and Alex discuss the translation from vehicle properties from VSS

  • eventually Philippe asks Bittium people to consider a possible contribution to the demo or the tests of the demo, to be discussed further in the upcoming calls

Tuesday 6 July – 5:00 PM CEST

  • AMM dates are set for first week (4→8 October).  Location, likely Germany and virtual hybrid.

  • Tools.  Alignment process ongoing (which creates some open PRs and issues in VSS and vss-tools before that)

Last week we established these next actions on the property translation work.  Status updates below.

  • Feedback from VSS working group about general strategies for metadata (hierarchical?)  Gunnar Andersson

    • UPDATE: Question was raised (as a heads-up, future topic) last week's VSS.  Will check for more feedback this evening but it probably needs a bit of time to get all stakeholders involved (it's a fundamental question).

  • Start work on code generator in vss-tools/contrib, output according to chapter "How to describe the complex translations" above.

    • Question: Introduce templating language (JINJA2) in vss-tools?  It is used in vsc-tools and could be useful also for VSS for more complex code generation than we have today.

      • UPDATE: We still have no assigned programming resource to get this started

  • Stefan awaiting approval to publish "hard-coded" example code.

    • UPDATE: Approvals slow because of vacations.  Won't happen before Stefan's vacation.  (A few actions for Stefan to do, testing etc.)

Tuesday 29 June - 500pm CEST

Participants

  • Johan, Stefan, Alex, Stephen, Gunnar, Philippe

Minutes

tool strategy

  • Alex: we are fixing some bugs and adapting to VSS 2.0 on our graphql tooling

  • Alex: we are also working on converting Franca files to VSS files and then to vehicle properties, however the open source publishing process was a major obstacle

  • Alex: BMW will reconnect the VHAL project in 2 weeks

vehicle properties

  • Gunnar shows the wiki page resulting from the import of the file sent by Stefan

  • Gunnar updates the next steps section of the wiki page on-line

TTuesday 22 June - 500pm CEST

Participants

  • Johan, Stefan, Alex, Stephen, Gunnar, Philippe

Minutes

VSS to AOSP translation - WBS

Tuesday 15 June - 500pm CEST

Participants

  • Johan, Stefan, Alex, Stephen, Gunnar, Philippe

Minutes

VSS to AOSP translation - WBS

TyrePressure
conversionMap["Vehicle.Chassis.Axle.Row1.Wheel.Left.Tire.Pressure"] = std::bind(convertFloat, std::placeholders::_1, VehicleProperty::TIRE_PRESSURE, (int32_t) VehicleAreaWheel::LEFT_FRONT, 1.0f, 0.0f); conversionMap["Vehicle.Chassis.Axle.Row1.Wheel.Right.Tire.Pressure"] = std::bind(convertFloat, std::placeholders::_1, VehicleProperty::TIRE_PRESSURE, (int32_t) VehicleAreaWheel::RIGHT_FRONT, 1.0f, 0.0f); conversionMap["Vehicle.Chassis.Axle.Row2.Wheel.Left.Tire.Pressure"] = std::bind(convertFloat, std::placeholders::_1, VehicleProperty::TIRE_PRESSURE, (int32_t) VehicleAreaWheel::LEFT_REAR, 1.0f, 0.0f); conversionMap["Vehicle.Chassis.Axle.Row2.Wheel.Right.Tire.Pressure"] = std::bind(convertFloat, std::placeholders::_1, VehicleProperty::TIRE_PRESSURE, (int32_t) VehicleAreaWheel::RIGHT_REAR, 1.0f, 0.0f);

  • TODO Alex & Stefan to add the conclusion of the discussion

Tuesday 8 June - 500pm CEST

Participants

  • Mannu, Johan, Stefan, Alex, Stephen, Gunnar, Philippe

Minutes

too graphql generator

  • Gunnar gives an update on the graphql generator he has published

  • discussion about which implementation of the graphql generator to maintains

  • discussion on the type support in the generator

  • Alex will check when he and Stefan can deliver a presentation of the work done at BMW on this topic and on the open source code which is now in the publishing process

discussion on VSS to AOSP translation

AASIG development platform

  • Mannu reports on the building try out he made with the AASIG dev platform

Tuesday 1 June - 500pm CEST

Participants

  • Stefan, Johan, Mannu, Gunnar, Philippe

Minutes

graphql generator

VSS to AOSP translation

reschedule of CVII workshop event

  • June CVII workshop moved one week later to Thu 1 July; 16:00 CEST (duration: 3h max)

  • this date is fine for Stefan and Johan, Mannu will be OOO

Tuesday 25 May - 500pm CEST

"Development platform"

Manu's feedback

  • Manu: Dockerfile in master uses Ubuntu 14.04 which is very old

    • Gunnar: I know that we needed for Renesas BSP a certain version that had been officially tested, but it should not be as old as 14.04 anymore.  I will  check.

  • Manu: We should add a target for emulator

    • Gunnar: Agreed, this is needed.

  • Stefan: There should be a lunch target named genivi-x86 something that will build OK for the emulator.

WBS for VSS-to-Android properties bindings:

  • Stefan created a writeup in Markdown → now posted as Wiki Page here.

  • Stefan will check about status of the translation code ("manually written example").

Tuesday 18 May - 500pm CET

Participants

  • Alex, Manu, Johan, Gunnar, Philippe

  • apologies: Stefan

Minutes

roundtable of call participants

update of project current scope and status to bring Alex up to date

  • related tickets

    • Error rendering macro 'jira' : null

    • Error rendering macro 'jira' : null

    • Error rendering macro 'jira' : null

discussion of BMW publishing of EDS-related code in the open

  • the code is related to the mapping of VSS on to CommonAPI and Some/IP.

AASIG github

Tuesday 11 May - 500pm CET

Participants

  • Stefan, Manu, Johan, Stephen, Gunnar, Philippe

Minutes

debrief of the virtual AMM

discussion of the planning of activities for the next 6 months

  • TODO Stefan to update the VHAL project work breakdown structure to reflect the revised project scope which is now on the generation of Google vehicle properties from VSS

May 4-7 Virtual AMM - VHAL sessions

Tuesday 27 April - 500pm CET

Participants

  • Stefan, Johan, Chris, Gunnar, Philippe

Minutes

Virtual AMM preparation

  • review of AASIG VHAL short update report and slides for the AASIG VHAL tech workshop and topics for the next 6 months

  • TODO Stefan to split the current slide deck into 3 parts as listed above

Tuesday 20 April - 500pm CET

Participants

  • Stefan, Johan, Gunnar, Philippe

Minutes

Virtual AMM preparation

  • Stefan: a sample of the code shown last week is actually available in 

    Error rendering macro 'jira' : null

  • Discussion about possible reuse of the definition language in this project:
    https://github.com/GENIVI/vehicle_signal_manager

  • That project explores how to create NEW derived signals and events from expressions that are made up of VSS defined signals.

  • If the project isn't applicable exactly, it is still possible that the definition language (plus parsers / interpreters) could be reusable code for a code generator

Jira review

  • Error rendering macro 'jira' : null
     assigned to Gunnar Andersson that will add a final comment (reminder)

    • Gunnar: the work done on AASIG-122 draw the attention of the VSS team and might lead to some changes in VSS

Tuesday 13 April - 500pm CET

Participants

  • Stefan, Johan, Stephen, Gunnar, Philippe

Minutes

Virtual AMM preparation

  • Stefan: shows the code developed by TietoEVRY

  • Gunnar: very interesting update on the translation from VSS to vehicle properties

Jira review

  • Error rendering macro 'jira' : null
     assigned to Gunnar Andersson that will add a final comment

  • Error rendering macro 'jira' : null
     the concept (using graphql)  was shown in a demo already,  Stefan Wysocki please add a comment and mark it as done, thanks !

  • Error rendering macro 'jira' : null
     and subtasks will be revisited when we know better how Bosch code recently dropped fits into our work

  • sprint extended until 30 April

Tuesday 6 April - 500pm CET

Participants

  • Stefan, Johan, Chris, Philippe

  • apologies: Gunnar (Mobex webinar)

Minutes

Virtual AMM preparation

  • Stefan: did internal brainstorming at TietoEVRY and saw the demo developed by his colleagues, code refactoring necessary

then everyone switches over to the Mobew Webinar on Vehicle Service Catalog delivered by Gunnar

Tuesday 30 March - 500pm CET

Participants

  • Stefan, Stephen, Gunnar, Philippe

  • apologies: Johan

Minutes

Virtual AMM preparation

  • Stefan: manual translation of VSS to vehicle properties is done, an early implementation of the translator might be available at the time of AMM, possible, the demo will show how the generated code looks like

  • Stefan: will report the progress in 

Tuesday 16 March - 500pm CET

Participants

  • Stefan, Johan, Stephen, Gunnar, Philippe

Minutes

Virtual AMM preparation

  • discussion on Tieto delivery of a project update(10') and a VSS-to-Vehicle Properties demo (15'), Stefan agrees to deliver both although the translation VSS↔properties might be manual at the time of the virtual meeting

Translation from VSS to VHAL properties

    • Johan: the team provided a new update of the mapping analysis, please look at the ticket

    • Gunnar: it looks fairly complete. A few final tweaks on the translation-type -> Gunnar Andersson TODO
      Decided that the current version (as fetched in Dec 2020) is good enough to start implementing the concepts. It's possible to do an updated mapping later on and feed that into implementation.

    • Gunnar: we need to determine which vehicle properties should influence VSS

Jira cleaning

  •  and sub-tasks thrown to backlog

  •  and sub-tasks thrown to backlog since the team stopped working on the External Data Server concept and status back to ToDo

  • and sub-tasks thrown to backlog for the (same) reason above and status back to ToDo

  •  thrown to backlog

Tuesday 9 March - 500pm CET

Participants

  • Stefan, Johan, Philippe

  • apologies: Stephen Lawrence, Gunnar

Minutes

Translation from VSS to VHAL properties

    • Johan: points the Excel spreadshhet 1.6, the mapping is almost done, there are some mismatches with OBD values, will include the latest comments from Erik Jaegervall

    • Stefan: discussion with Johan on the representation of seats, no simple way to represent the seats

VHAL implementation - signal2service interface

  • Stefan: someip implementation for android is used by another team at Tieto, it works out of the box

TODOs

  • TODO  Stefan Wysocki Stefan to check with the Tieto management about the preparation and resourcing for a VHAL demo to be shown at the upcoming virtual AMM

Tuesday 2 March - 500pm CET

Participants

  • Stefan, Johan, Stephen Lawrence, Gunnar & Philippe

Minutes

Build configuration

  • discussion between Gunnar, Stefan and Stephen on the build configuration and testing

Translation from VSS to VHAL properties

    • Johan: the team has now this ticket in their backlog, work is in progress

Vehicle properties implementation

  •  

    • updated by Gunnar with the link to repos

    • created to track the alternate implementation of vehicle properties using VHAL and not graphql

TODOs

  • TODOs Tieto (i.e. Piotr) to check the publishing status of the signal2service spec in the AUTOSAR set of standards

  • TODO  Tieto to check the status of the vsomeip implementation on Android (in github)

Tuesday 23 February - 500pm CET

Participants

  • Stefan, Piotr, Chris, Stephen Lawrence, Gunnar & Philippe

Minutes

Translation from VSS to VHAL properties

Next dissemination event

  • Next dissemination event will be the GENIVI virtual AMM scheduled on 4-7 May

  • Philippe: asks TietoEVRY whether it would be appropriate to show a VHAL connected to AUTOSAR demo, in 2-month time

  • discussion on interfacing with AUTOSAR using the signal2service mapping defined by AUTOSAR

  • TODO Tieto to check the publishing status of the signal2service spec in the AUTOSAR set of standards

  • TODO Gunnar and/or Tieto to check the status of the vsomeip implementation on Android (in github)

Tuesday 16 February - 500pm CET

Participants

  • Johan, Stefan, Stephen Lawrence, Gunnar & Philippe

Minutes

Platform Configuration

  • Gunnar: explains the platform configuration approach, the go infrastructure is set up to provide automatic builds, this is still wip though

  • discussion on go.cd for Johan's awareness

Translation from VSS to VHAL properties

    • Johan: I passed this on the team, it is in their backlog now, Johan will provide feedback hopefully next week

    • review of VSS to vehicle properties Excel sheet, need to add 2 columns VSS data types and AA data types in the spreadsheet

    • Gunnar: I will attach the updated spreadsheet V2 to the Jira ticket

AOB

  • we will switch to zoom instead of webex for next week call

Tuesday 9 February - 500pm CET

Participants

  • Johan, Stefan, Piotr (part-time) Stephen Lawrence, Gunnar & Philippe

Minutes

Configuration manifest

Translation from VSS to VHAL properties

Tuesday 2 February - 500pm CET

Participants

  • Johan, Stefan, Chris, Stephen Lawrence, Gunnar & Philippe

Minutes

Refocusing of project

  • Philippe: IMHO we need to refocus the project activities, more OEMs are now working with Google, we need to recognize this and consolidate the knowledge the VHAL team has been building during the past year. I would recommend we revisit the work breakdown structure and the priority of activities

  • Stefan: we should now analyze how to provide all vehicle properties through VHAL rather than through graphl, this means to look into the generation of bindings / the translation from VSS to vehicle properties

  • review of the existing work breakdown structure (for the External Data Server concept)

  • Stefan: I will check the architectural concepts we came up with in the past and propose another architecture to work on

  •  created for tracking

CVII workshop preparation

  • Philippe: the second CVII workshop is scheduled on Thursday 18 February 16:00-20:00 CET, we have included a status report on existing projects in the schedule (see blog)

  • Gunnar: 15' will be allocated to the VHAL status report

  • Philippe: Stefan Wysocki can you deliver this ? this will likely reuse and update an existing VHAL project presentation

  • Stefan: yes, I can

  •  created for tracking

Tuesday 26 January - 500pm CET

Participants

  • Johan, Stefan, Stephen Lawrence, Gunnar & Philippe

Minutes

Tuesday 19 January- 500pm CET

Participants

  • Johan, Piotr, Stefan, Stephen Lawrence

  • apologies: Gunnar & Philippe (in another call)

Minutes