hybrid-prototype-in-the-loop for early dr.-ing. christian buchholz … · 2020. 9. 15. · hybrid...

D r . - I n g .

C h r i s t i a n B u c h h o l zHybrid-Prototype-in-the-Loop for early

ADAS controllability testing

And as he walked off with long strides, he said petulantly to the robot: … []

… “Why can’t they program you to use a car so that I wouldn’t have to

walk?”

He knew very well why that wasn’t done. Any accident involving a robot-

driven car would set off another antirobot riot.

“The Robots of Dawn” [Isaac Asimov 1983]

2

H y b r i d - P r o t o t y p e - i n - t h e -

L o o p f o r e a r l y A D A S

c o n t r o l l a b i l i t y t e s t i n gD r . - I n g . C h r i s t i a n B u c h h o l z

E l e c t r om o bi l i t y

a n d

E l e c t r i f i ca t i on

C V

Student Automotive Engineering

CAD Designer Railway Vehicle

Project Engineer ICA

Research Assistant Systems

Engineering and Drive Simulation

Solution Architect Systems

Engineering

2002-2009

2010-2011

2011-2012

2012-2018

2019-today

3




Problem description

Hybrid-Prototype-in-the-Loop Test

Drive Simulator Setup

Advantages

Presentation Scope

Scientific Approach

Tools & Methods for Integration and Test

4




Hybrid-Prototype-in-the-Loop for early

ADAS controllability testing

Advanced Driver Assistent SystemName of the solution Approach

Picture: [Edge ai]

5



c o n t r o l l a b i l i t y t e s t i n gD r . - I n g . C h r i s t i a n B u c h h o l zProblem Description

( S e m i - )

Au t o n o m o u s

D r i v i n g

E l e c t r om o bi l i t y

a n d

E l e c t r i f i ca t i on

Pictures: [Avnet, Diedrichs, Continental ]

N e w D i s p l ay a n d

C o n t r o l Te c h no l og i es

a n d C o n c e p ts

Emerging technologies that potentially lead to disruptive

changes in the interaction between driver and car

Possible Interaction Challenge

• Does the driver understand the

ADAS warning on the new , big

front display?


• Does the driver understands

when to take over the steering

wheel?


• Does the driver accepts energy

efficient behavior of the car (e.g.

reduced power, recuperation)?

6



c o n t r o l l a b i l i t y t e s t i n gD r . - I n g . C h r i s t i a n B u c h h o l zControllability

Perce ive

a S i t u a t i o n

Decide

f o r a c o u n t e r m e a s u r e

Per form

t h e c o u n t e r m e a s u r e

Ability to avoid a specified harm or damage through the timely reactions of the

persons involved, possibly with support from external measures (ISO 26262)

Mechatronic

System*Displays

Environment Car Environment Car Driver Driver

Control

Elements

Mechatronic

System*

Driver

*Mechatronic Systems comprise a basic system,

sensors, actors and information processing

[VDI 2206]

7




C o n c e p t

S ys t e m -

P r o t o t yp e

S e r i e s -

S ys t e m1A

1B

2A

2B

3 4

Controllability assessment

D i g i t a l

M o d e l

ADAS Development

• Today long parallel subsystem development of Mechatronic

System and HMI (Display + Control Elements)

• Today late integration to System Level (~ 12 months before

SOP), usually installed and tested in cars

Controllability Assessment (ISO 26262-1)

• early controllability assessment by expert reviews on static ADAS

prototypes and specifications

• Interactive controllability testing with human driver requires Mechatronic

System and HMI (Display + Control Elements) integrated to System Level

vs.

Mechatronic

System

Mechatronic

System

HMI (Displays +

Control elements)HMI

*based on Interviews with VW Developers [Hartfiel]

~ 12 months before

SOP*

8




1A

1B

2A

2B

3 4

H yb r i d AD AS

P r o t o t yp e

2C

Hybrid Prototype-in-the-Loop Test

C o n c e p t

S ys t e m -

P r o t o t yp e

S e r i e s -

S ys t e m

D i g i t a l

M o d e l

Approach

• Usage of the earliest executable models and prototypes from

Mechatronic System and HMI development

• Integration to a hybrid ADAS prototype containing as many

digital elements as possible

• Test of hybrid ADAS prototype the in drive simulator

Mechatronic

System

Mechatronic

System

HMI (Displays +

Control elements)HMI

9



c o n t r o l l a b i l i t y t e s t i n gD r . - I n g . C h r i s t i a n B u c h h o l zHybrid Prototype-

in-the-Loop TestHybrid Prototype-in-the-Loop Test

9

Hybrid ADAS Prototype

ADAS System Environment

D R I V E S I M U L AT O R

R E AL D R I V E R

V I R T U AL R E AL I T Y

R AP I D P R O T O T Y P I N G

S O F T WAR E M O D E L S

10




Interaction Loop

Hybrid ADAS Prototype

V I R T U AL R E AL I T Y

S O F T WAR E M O D E L S

ADAS System Environment


R E AL D R I V E R


R AP I D P R O T O T Y P I N G

10

11






… is suitable and appropriate for

controllability assessment

… is understandable for the test

driver

… enables assessment earlier, in

higher quality or with broader

scope compared to established

test methods

11

12



c o n t r o l l a b i l i t y t e s t i n gD r . - I n g . C h r i s t i a n B u c h h o l zDrive Simulator Setup


Provides a to be setup for a use case compliant drive simulator

Provides technical specifications taking into account state of the art simulator technology

Provides quantitative and qualitative test methods and tools

1

2

3


… requires a target oriented design

of the drive simulator

Example:

Visualization system

• Horizontal field of view 220°

• Resolution 4arc min/pixel

• Framerate 50Hz

• 3D with head tracking

• Eye tracking

• Reusable

Questionnaire

• „Soft“ real-time

• field of view identical to original

• Resolution comparable to eyes

resolution

• Framerate variable

• Realistic 3D

13



c o n t r o l l a b i l i t y t e s t i n gD r . - I n g . C h r i s t i a n B u c h h o l zAdvantages of using the


Application 12-18

months earlier

compared to

todays full

controllability test

Target oriented

evaluation and

design of drive

simulators

Broad

controllability test

based on early

ADAS development

(Sub-) Prototypes

14



c o n t r o l l a b i l i t y t e s t i n gD r . - I n g . C h r i s t i a n B u c h h o l zRecommendation

~ 12 months before

Start of Production

(SOP)

up to 30 months

before Start of

Production (SOP)

1A

1B

2A

2B

3 4

H yb r i d AD AS

P r o t o t yp e

2CC o n c e p t

S ys t e m -

P r o t o t yp e

S e r i e s -

S ys t e m

D i g i t a l

M o d e l

Usage of Hybrid Prototype-in-the-Loop Test in combination with today’s

controllability assessment methods

+ Reduction of today’s expensive car-

based test

+ Early test of driver-ADAS interaction

to find controllability issues

+ Early decision making in

experienceable systems

15




Contact

Dr.-Ing. Christian Buchholz

Solution Architect Systems [email protected]

linkedin.com/in/christian-buchholz-12120732

mailto:[email protected]

https://www.linkedin.com/in/christian-buchholz-12120732

16



c o n t r o l l a b i l i t y t e s t i n gD r . - I n g . C h r i s t i a n B u c h h o l zSources

Avnet EMEA, Top 5 Tech Trends in Advanced Driver Assistance Systems, avnet.com, last access

10.08.2020

Continental Automotive, continental-automotive.com/de-DE/Passenger-Cars/Technology-

Trends/Electrification - last access 10.08.2020

Diedrichs, N. (2017): VW-Elektroauto-Studie I.D. im Fahrbericht. So fährt Volkswagens Elektroauto-

Zukunft. www.auto-motor-und-sport.de/fahrbericht/vw-id-fahrbericht-elektroauto-studie-2017/, last

acces10.08.2020

Edge ai + vision alliance: A Handy List of Automotive ADAS Acronyms, edge-ai-vision.com/2015/09/a-

handy-list-of-automotive-adas-acronyms/, last acces 16.08.2020

Hartfiel, B.; Buchholz, C.; Fresemann, C.; Tomaszek-Staude, W.; Stark, R. (2018): Use Case orientierte

Gestaltungsempfehlungen für Fahrsimulatoren zur menschzentrierten Absicherung von Sicherheits-

und Komfortfunktionen. In: VDI Wissensforum GmbH (Hg.): Proceedings: 19. VDI-Kongress "SIMVEC -

Simulation und Erprobung in der Fahrzeugentwicklung". 19. VDI-Kongress "SIMVEC - Simulation und

Erprobung in der Fahrzeugentwicklung". Baden-Baden, 20.-21.11.: VDI Verlag GmbH (VDI Berichte

2333), 655-669.

VDI 2206: Entwicklungsmethodik für mechatronische Systeme, 2004

[Avnet]

[Continental]

[Diedrichs]

[Edge ai]

[Hartfiel]

[VDI 2206]

Icons und Symbols: The Noun Project, thenounproject.com/, last access 06.02.2020

hybrid-prototype-in-the-loop for early dr.-ing. christian buchholz … · 2020. 9. 15. · hybrid...

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