Advanced Vehicles and Vehicle Control Knowledge Center

Activities and Results of the first 2 Years

September 4, 2007

Advanced Vehiclesand Vehicle Control Knowledge Center

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Overview

• Motivation for establishment of the Knowledge Center

• Organization and structure• Processes• Reference projects• Facilities• Strategic plan for 2007-2008

Motivation

The Establishment Process of the Knowledge Center

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Concentration of Resources

LargeCompanies

SmallVentures

ResearchInstitute

University

Homologation and legislation

Participants

External supporters

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Establishment Process

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1. Control of Vehicle Groups

• Significant professional and market results even in the first year of operation

• Cooperation with inland professional organizations (Association of the Hungarian Automotive Industry, Hungarian Logistics Association, Hungarian Road Transport Association)

• Tangible industrial orders (ATEV Kft., MOLTRANS Kft., Hungarian Mail)

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2. Vehicle-environment Contact

• Joining into international ITS R&D activities (CVIS - ERTICO project, with Ramsys zRt.)

• Participation in home standardization processes (MSZT/MB 911 working group)

• Development of a video-based lane-departure detection and avoidance system

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3. Control on Vehicle Level

• Development of an integrated control methodology

• Application of software technology tools in real-time, distributed control systems

• „Stunt SMART” – demonstration of X-by-wire systems

• Demonstration of alternative vehicle technologies

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4. Intelligent Actuators

Electronicsteering

Electronic motormanagement

Electronicbraking

Electronicgear-shifting

Electronicsuspension

Steer-by-wire

Power-by-wire

Brake-by-wire

Sift-by-wire

Ride-by-wire

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5. Platform Systems

Organization and Structure

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Matrix OrganizationAdvisory Board (Prof. Károly Molnár, Prof. Pál

Michelberger, Prof. László Keviczky, István Lepsényi)

Scientific Director(Prof. József Bokor)

Director(Dr. Zsolt Stukovszky)

Program Director(Dr. Csilla Bányász)

BME(Dr. Zsolt Stukovszky)

SZTAKI (Dr.GáspárP.)

AHAI(István Wahl)

Admin./PR

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Development Director(Dr. László Palkovics)

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Students Involved into R&D Work

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hallgató doktorandusz

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Own Journal

Processes

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Business Process Structure

Leadership Resource management

Sales and marketing

Product industrialization

Business and organization development

Human resourcesmanagement

Project management Finance Facility Data

Marketing andmarket development

Sales planning External contacts Dissemination of results

Basicresearch

Strategic planning Process development

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Innovativeproducts

Serial productdevelopment

Qualificationand testing

Customerapplications

Productionpreparation

Regulations

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Data Management

Development process

Project management process

Neptun.Net / Poszeidon.Net based RET PMT tool

Neptun.Net / Poszeidon.Net based Knowledge base

Intranet

Extranet

Internet

Documentation of results Documentation of processes

User

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ISO 9001 Certification

Reference Projects

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Brake System Design and Investigation Activities• Several projects have been carried out with industrial partners:

– Design of software modules for electronic braking system– Trailer electronic brake system investigation– Measurement of brake caliper vibrations– Control algorithm design for electro-mechanic self-amplified brake system– Design and verification of brake systems– Design of brake system components such as

• Oil separator for air brakes• Brake components for a cardan shaft parking brake• ….

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Stability Control System Development

• Theoretical investigations – Definition of the vehicle stability control logic – what is the

target– Selection of the control philosophy– Efficiency of the potential actuators (brake, steering,

suspension)– Identification of the reference model– Vehicle stability in-plane (yaw) and out plane (roll, pitch)

• First vehicle dynamic control system for commercial vehicles is originated from the department in 1991 – since than it is a product of our partner, Knorr Bremse

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Original forcevector

Modified force vector bytyre slip manipulaton

Difference

Limit force vector

VEHICLE

Virtual model

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observer

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Brake and Steering Contr.

Torque and add. Steering

Driver's steering effort

Without DSCrolling over

Lateral acceleration

High C.G.

Reduction in the tire lateralforce component

With DSC a slightlateral sliding

Longitudinal slip

Longitudinal tireforce

Lateral tireforce

Tends to zero by roll-over

Vertical tire load a. b.

Reduction of the lateralforce component on thefront outer wheel (highslip value)

Brakeapplication onthe outer rearwheel, high slip)

Trailer brake applicationreducing trailer push orcausing trailer pull

Increasing the slipon the outer rearwheel

Reduction of the lateralforce component on theouter front wheel (let thewheel roll with high slip)

Releasing the inner rearwheel to reduce thelateral force componentand gaining referencespeed

Overbraking the trailerif necessary or possible

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Stability Control System – Steering Intervention

• Integration of the electronic steering intervention in the brake system based vehicle dynamic control system has the following effects:– Driver’s workload is significantly

reduced – electronic steering intervenes much faster

– Stopping distance under mu-split or chess surface is significantly reduced

– Brake intervention comes much later,• The autonomous steering makes other

functions possible:– Lane departure avoidance– Compensation of road disturbances

• Partners (in PEIT project)– DaimlerChrysler– Thyssen Krupp– Knorr Bremse

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Modeling and Control of the Complete Driveline

• The drive-line vibration induced by several factors (uncertainties in the driveline, slashes, gear changing errors, etc.) disturb the driver and cause fatigue in the system.

• Programs have been started in:– Modeling of the complete drive-

line torsion vibration,– Elimination of these vibrations

• Test bench design is initiated by one of our partner

• Partners: – Knorr Bremse

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System Reliability Investigations for Redundant Systems

• Electronically redundant systems will replace the mechanic/pneumatic back-up levels

• Requirements for system reliability/availability are much higher

• Analytical reliability investigation is required not only on the component, but also on the system level

• A safety/reliability investigation has been started with MTA SZTAKI together for an electronically redundant braking system

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All rights reserved

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This document is property of Knorr-Bremse SfN. All rights reserved.

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Facilities

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Component test and research lab

Facility is about to be built, move in in December

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Component test – about to be established, released investment starts

Features:

• Covers all release and test requirements of mechatronic components inlcuding:– Climatic investigations

(temperature, heat shock)– Environmental test (salt and

mud spray, gravel bombardment)

– EMC and ESD– Vibration– Combinations of the above

investigations

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Measurements on moving vehicles

• Steering robot and measurement wheels• Longitudinal and lateral velocity measurement• Vibration and force measurement• Noise measurement• On-board data acquisition system• Test vehicles (passenger cars and trucks as well)

Strategic Plan

2007-2008

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Mission ,Vision, Values

• Vision– To be one of the most decisive European R&D and

Service Centers in the fields of vehicle electronics and mechatronics.

• Values– Multidisciplinary, accessible knowledge at the

University– Well defined clientele– Clear determination of the University to establish a kind

of organizational unit that operate on the market– Comprehensive professional knowledge and flexible

structure resulting in innovative niche-market products

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Mission ,Vision, Values

• The mission of the Knowledge Center is to collect and provide information for partners belonging to the corporate body as well as to create new knowledge in the area of vehicle electronics and mechatronics.

• Consortium partners cover the whole chain of innovation from basic research to product development and marketing.

• The Knowledge Center positions itself as an interim body between the academic world and the market economy, bringing market and product centric issues into the system of higher education, moreover, promoting the utilization of the most recent vehicle technology in industry.

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Strategic Areas

• Education and knowledge transfer• Basic research• Applied research and product development• Infrastructure development• Process development• Marketing and communications

Thank you for Attention!

Prof. Dr. László PalkovicsDevelopment Director