Increasing of safety and functionality in vehiclesby using intelligent mechatronical systems

Lessons at TU Budapestthe 1.st of April 2004

Dr.- Ing. G. Spiegelberg

Needs of future vehicle development

Examples of projects and cooperations

Creating of new HMI

Application of assistant systems

Overview of the lessons

Integration in vehicle architecture

Modulisation of vehicles12

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Accident report

motivation of advanced

development

In Germany alone about 60.000 people / year are injured or lose life in accidentsThe most dangerous accident classes with heavy good vehicles involved are:

- jack knifings, - trailer oscillations- roll overs- lane departures

∼ 40 % preventable with an warning system

60 000 injured/killed people per year

∼ 60 % preventable with an controlling system

Goal : decreasing the numbers of accidents by 50 % until 2010

to make it payable, increase of functionality and scale is necc

One kind of standard accidents

Situation: A81 near Herrenberg at morning of 22. Mai 2002;Truck went over to opposide and after an rollover it stays blocking the lane Source Stgt. Ztg

Causes for accidents with trucks over 8 tons

informatics

electronics

control technic

mechanics

Mechatronik

Creating of concepts and workout withusing additional technics

informatics

electronics

control technic

mechanics

Mechatronikbionics

Creating of concepts and workout withusing additional technics

Intelligent transport systembased on biological concept

coordinationof motion

redundantevaluation

biomechanicalexecution

Load

primaryevaluation

transfer ofmotion wish

road condition

viewing

hearing

feeling

inertia motion

Limp Home Function

Intelligent transport systembased on biological concept

coordinationof motion

redundantevaluation

biomechanicalexecution

Load

Execution level

primaryevaluation

Command level

transfer ofmotion wishinterface

Intelligent transport systembased on biological concept

coordinationof motion

redundantevaluation

biomechanicalexecution

Load

Execution level

primaryevaluation

Command level

transfer ofmotion wishinterface

road condition

viewing

hearing

feeling

inertia motion

Limp Home Function

• minimising of costs• reliebility• good environment behavior

passanger cars

• safety• comfort• functionality

quality of transport

passanger - oriented

heavy good vehicles

• LCC functionality• safety• comfort

quantity of transportload - oriented

Different needs in vehicle development

modulemodulemaximized functionality

Concept of modulisation

minimized data-flow via interfaces/ module frame

single responsibility inside frame of module

minimizing of complexitymaximization of integration

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Recommendation with 5 part modularisation

5

assistantsystems

Telematics

driver-seat/HMI

1

comfort systemslock up systems

load management

4

powertrain 3

frame 2

1 primery surrounding evaluation(driver)Information management HMI

2 lights, data / energy

3 motion execution, energy-creation and -managementreactive surrounding evaluation(wheels, RPM, road condition)

4 load management

5 communikation extern (Telematics)redundant optical surrounding evaluat(radar, lidar, camera, etc.)predictive surrounding evaluat. (externcreation motion strategy based onprimery/ redundant surrounding evalua

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coordinationof motion

redundantevaluation

biomechanicalexecution

Load

primaryevaluation

transfer ofmotion wish

Integrated PowertrainECU

CabinECU

ECU

Safety-Assistant

Telematric

Disassembling into modules of transport system

FrameECU

Passanger/Load

ECU1

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examples of existing functionalities

execution levelexecution of motion

with stabilisation(automisation)

ABS, ASR, STC, ESPtelligent shift system

management of deceleration

command levelsurrounding evaluation

motion stategy(assistant systems)

cruise controladaptive cruise controlaccident avoiding brakelane departure warning

navigation assistant

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lane departure warninglane departure warninglane departure warningsteer by wiresteersteer by wireby wire

Telligent distronicTelligent Telligent distronicdistronic

activelane followeractiveactivelane followerlane follower

yesterday today yesterday today tomorrowtomorrow

protectorprotectorprotector

timetime

medium run roadmap of assistant systems

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Examples of futurefunctionalities

execution level

µ - friction detectionautomatical RA-lock-up system

tyre pressure controlenergy management

predictive diagnostics

command level

stop - and - golane follower

parking systembackwart driving assistant

collision avoiding

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Creation of the execution level

coordinationof motion

biomechancal execution

execution level

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pitch

Fx3

Fy3

Fz3

Mx

3

My3

Mz3

Fx2

Fy2

Fz2

Mx

2

My2

Mz2

Fx4Fy4

Fz4

Mx

4

My4

Mz4

Fx1

Fy1

Fz1

Mx

1

My1

Mz1

vert

ical

dyn

amic

s

lateral dynamics

long. dynamics

yaw

pitch

To control the motion of the car it is neccessary tocontrol all forces between

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Function of the Brake Based VDC

Oversteer Situation

situation

reaction

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