1 Performance-Optimierung durch Trennung von Testablauf und –auswertung, FKFS AutoTest 2014

Application of DDS on modular Hardware-in-the-loop test benches at Audi

Constantin Brückner, AUDI AG

2

Topics

► Rapidly increasing Requirements for Testing

► Overview Hardware-in-the-loop-Testing

► Next generation modular HIL test benches

► Goals

► Challenges

► Ideas

► Why DDS?

► Application at Audi: Theory meets practice

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

3

Topics

► Rapidly increasing Requirements for Testing

► Overview Hardware-in-the-loop-Testing

► Next generation modular HIL test benches

► Goals

► Challenges

► Ideas

► Why DDS?

► Application at Audi: Theory meets practice

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

4

Rapidly increasing Requirements for Testing

Functions

Complexity

Quality

A+

A

B

C

D

F

E

G

Efficiency

Integration and Test

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

Mechanics

Electronics

Software

5

Changing Requirements for Testing

Source:

Ricky Hudi : “Trends und zukünftige Herausforderungen der E/E-Entwicklung”

18. Internationalen Fachkongress "Fortschritte in der Automobil-Elektronik"

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

6

Example: Audi connectChallenges

► Integration of Smartphones with

different platforms

► IT-Backend

► Integration of external partners

► Integration of Call-Centers

► Development of End2End services

► Establishing of new processes along

the event chain

Cars withAudi connect

Content, ext. Partner

Smartphone

Customer-Front Ends

Call Center

Vorsprung durch Technik

During the last century, cars were completely interconnected internally.In this century cars will be seamlessly interconnected with the Internet,the owner, the infrastructure and other vehicles.

6

Topics

► Challenges of vehicle development

► Overview Hardware-in-the-loop-Testing

► Next generation modular HIL test benches

► Goals

► Challenges

► Ideas

► Why DDS?

► Application at Audi: Theory meets practice

► Conclusion

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

7

Overview Hardware-in-the-Loop

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

Simulation computer

Model

Simulation of Sensors

Measuring of reactions

System under Test

8

Topics

► Challenges of vehicle development

► Overview Hardware-in-the-loop-Testing

► Next generation modular HIL test benches

► Goals

► Challenges

► Ideas

► Why DDS?

► Application at Audi: Theory meets practice

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

9

Overview and History

Stage 2: ► Modular Simulink models

Stage 1: Separation of ► Computation nodes and ► ECUs

Stage 3: Bus-based test benches ► Multiple suppliers ► Abstraction for users

27.08.2012I/EE-33 Folie 7

generische

System-

Module

generische

HIL-Rechner

Kombinierbare HIL-Komponenten

baureihen-

spezifische

Bretter

19

Modellderivate an den modularen Prüfständen

► Eine Modellbasis, kompatible Teilmodelle

► Kaskadiertes Umschalten von Software-ECU auf Hardware-ECU

► Gestufte Inbetriebnahme, Test und Absicherung

Dr. M. Miegler, I/EE-65 , 17.04.2012

Komponente System Fahrzeug

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

HIL-Interface

VU-Modules

HIL-Modules

HIL

-Bu

s

HIL-Operation

Vendor C

Vendor A

Data logger

Vendor B

Tablet

Tester

Tester

ECU

ECU

ECU

ECU

Manager

Experimental Software

Testautomation

Smartphone

Test bench manager

Control Station

Vendor BSensors

Traffic Simulation

Driver Simulation

Sensor Simulation

Road Simulation

Vendor AECU

Central AnalysisService

Generic HIL modules

Vehicle specific boards

Generic system modules

10

Goal

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

11

Complex and interconnected vehicle

architecture

Complex and interconnected test

bench architecture

Modularization and bus based test benches

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

Audi started the project: modular HIL next generation

12

Basic ideas of the mHIL NG project

► Best-in-Class approach

► Modular and scalable platform

► Standardized bus system and middleware

► Logical abstraction of test stand

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

+

HIL-Bus

Modulspezifische Funktionalität

PSM

Modulspezifische Funktionalität

PSM

Modulspezifische Funktionalität

PSM

Modulspezifische Funktionalität

PSM

Modulspezifische Funktionalität

PSM

13

Main challenges of modularization

Diversity

Complexity

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

Scalability

Abstraction and flexibility

+ User Interaction

14

Logical architecture

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

HIL-Interface

VU-Modules

HIL-Modules

HIL

-Bu

s

HIL-Operation

Vendor C

Vendor A

Data logger

Vendor B

Tablet

Tester

Tester

ECU

ECU

ECU

ECU

Manager

Experimental Software

Testautomation

Smartphone

Test bench manager

Control Station

Vendor BSensors

Traffic Simulation

Driver Simulation

Sensor Simulation

Road Simulation

Vendor AECU

Central AnalysisService

15

Physical architecture

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

16

Test Bench Manager (PSM)

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

HIL-Bus

Module Application

PSM

DDS

Glue-Code

17

Topics

► Challenges of vehicle development

► Overview Hardware-in-the-loop-Testing

► Next generation modular HIL test benches

► Goals

► Challenges

► Ideas

► Why DDS?

► Application at Audi: Theory meets practice

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

18

Why Audi has chosen RTI DDS?

► Key requirements for Audi HIL-Bus middleware technology

► Open standard

► Real-time capable

► Scalable

► Field proven to be reliable

► Why RTI DDS?

► Based on OMG DDS standard

► Real-time capable and data-centric

► Compatible with standard Ethernet hardware and protocols

► Highly decoupled modular development capabilities

► Plug and play capable

► Established in aerospace and military

► Open license model

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

19

Topics

► Challenges of vehicle development

► Overview Hardware-in-the-loop-Testing

► Next generation modular HIL test benches

► Goals

► Challenges

► Ideas

► Why DDS?

► Application at Audi: Theory meets practice

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

20

Application at Audi: Theory meets practice Demonstrator

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

TopView-Simulation

HIL-Bus

Sim.-Framework

C2X-Simulation

Test Automation Experimental Software

HIL-Bus (Ethernet)

HIL-Bus

Sim.-Framework

Web-Server

HIL-Bus

Sim.-Framework

Environment

Simulation Control

HIL-Bus

Sim.-Framework

HIL-Bus

Sim.-Framework

Traffic Simulation

HIL-Bus

Sim.-Framework

Vehicle Simulation

HIL-Bus

Sim.-Framework

HIL-Bus

Sim.-Framework

21

Integration of DDS-Interface

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London

22

Thank you for your attention.

Constantin Brückner, RTI DDS UserConference, Oct. 2014, London