Automated Driving & Development Processes â A ...
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Automated Driving & Development Processes â A ...
Nov 9, 2017 - Dr. Olaf Schädler, Sven Hallerbach (Opel Automobile). Matthias Büker , Sebastian Gerwinn (offis),. Tino Brade (Robert Bosch), and Christian ...
Automated Driving & Development Processes – A brief look beyond Dr. Ulrich Eberle (Opel Automobile) Dr. Olaf Schädler, Sven Hallerbach (Opel Automobile) Matthias Büker , Sebastian Gerwinn (offis), Tino Brade (Robert Bosch), and Christian Amersbach (Darmstadt University – FZD)
Aachen, 9th November 2017
The Traditional Starting Point Sensor Configuration
Different Sensor Views
Sensor Fusion Planning and Decision Making in an Interpretation of the Physical World
A Look Beyond… New challenges emerging due to high situational complexity
Event-triggered TL Path B
Path Y1
Path V1
Path Y2
Path B Vehicle 1
Optimized Approach
Unknown Intentions
Communication Infrastructure
Traffic Environment Missing information on Driver Intentions Complex Road Structure Signal Phases & Queues
Not even considering pedestrians, cyclists, kids etc.
Difficult Structures
Vehicle 2
Exemplary Test Approach for Automated Driving – Coupling of VEHICLE DYNAMICS and TRAFFIC FLOW simulations using DIGITAL TWIN
Hallerbach S., Eberle U., Köster F. : Absicherungs- und Bewertungsmethoden für kooperative und hochautomatisierte Fahrzeuge. AAET - Automatisiertes und vernetztes Fahren. Braunschweig, (Research Paper). 8.-9.02.2017
But there are simpler tasks than „just“ creating such a Digital Twin …
V2X/ITS G5
4G 5G
And Finally Facing Again the Old Enemy: Complexity ACC: Long-Range-Radar and ECU:
O. Schaedler (Opel)
36 Possible Combinations
ACC and LCA: Long-Range-Radar, Camera and ECU:
O. Schaedler (Opel)
288 Possible Combinations
An Exemplary Development Process Vehicle w/o Automation (early 2010s) and w/o considering Powertrain Ca. 400 Manufacturing Options, 30 Electronic Control Units, Several Hundred Cal-Files, Thousands of Parameters
Duration: Several years, depending on specific OEM
Start of Regular Production
Level 1
Level 2
Level 3 T. Tiecke et al. (Opel)
V Model
9
V Model and ISO 26262
10
ISO and SOTIF
T. Weispfenning (Opel)
ISO26262 only as basis … „Safety of the Intended Functionality“ needs to be covered as well. NEW CHALLENGES: Mix Traffic and Issues at Other Cars 11
Process Extension
plus contingently - „Silent Testing“ Approaches - Staggered Deployment via Restricted Fleets as well as the corresponding feedback cycles
12
Exemplary Impact on OEM Development
A. Weitzel et al. (Opel) 13
Exemplary Impact on OEM Development
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What is the impact on PEGASUS methodology?
PEGASUS method needs to be coordinated with established OEM and industry processes Do we miss something when applying a scenario-based approach How may the testing effort be structured?
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Approach to Assess and Structure Challenges
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Specific Example : Information Basis
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Approach to Structure Test Effort Functional Decomposition A scenario-based approach is able to reduce the test effort
BUT the various scenarios still check all functional levels simultanously.
High number of combinations of initial and boundary conditions lead a large number of test cases
The functional decomposition and the structuring of relevant scenarios into „test case quants“, which test in structured way just one (or a few) functional levels:
Reduces the overall test effort
Enables the application of tools (XiL, proving ground etc.) according to their validity.
A reduction of the test risk.
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Functional Decomposition Relevant Scenarios (functional) Matrix Definition and Assignment of Failure Criteria via FTA
Elimination and Bundling of Failure Criteria Decision on Appropriate Test Cases and Test Tools for Remaining Failure Criteria
Scenarios Functional Levels
Which requirements result from certain scenarios for specific levels
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Outlook New development approaches should be as „downward-compatible“ to the existing automotive process world as possible (and as making sense) AD vehicles initially could have a lower diversity than current cars to cope with complexity issues Structured approaches needed to make clear what is known, what is not known and about what not even is known to be unknown. Structured approaches like functional decomposition needed to reduce test efforts To introduce AD cars, concepts like „silent testing“ in restricted fleets and a staggered deployment to real-world application including learning cycles are worth to be examined
PEGASUS is working on these challenges
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Thank you … Merci beaucoup
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What will change for Automated Driving? Robust Sensor Technology over Vehicle Lifetime Fail-operational Systems Integration of Connectivity Concepts (V2X) Source Wikipedia
