VeCo12 2 ECUcalibration 1 Tepe Lecture

Automated Measurement Analysis with Vector

CANape‘s DataMining

Analysis for the Mercedes-Benz 7G-TRONIC PLUS

Erhan Tepe, Calibration Engineer

Co-authors: Jens Dorfschmid, 7G-TRONIC PLUS Project Manager,

Stefan Gloss , Calibration Engineer

Stuttgart, 28 November 2012

Automated Measurement Analysis with Vector CANape‘s DataMining, Stuttgart 2012

7G-TRONIC PLUS Page 2

Contents of following presentation

Powertrain: Introduction 7G-TRONIC PLUS

1

Application – CANape Datamining

2

Analysis Process - Today

3

Analysis Process - Motivation

4

Datamining setup panel & final results

5

Field of Calibration

6

Film about product creation/project challenges

7

Mercedes Benz – automatic transmission

8

Discussion 9



K4A025 4-Speed

W4A040 4-Speed

W5A580 5-Speed

W7A700 7-Speed

W7C700 7-Speed

W3A040 3-Speed

5 Gears

electro-hydraulic

control unit and

brake disks

7 Gears,

new torque converter

start/stop capable

7 Gears

Integrated

control unit

3 Gears

with hydraulic

torque converter

4 Gears

with hydraulic

torque converter

4 Gears

with

launch clutch

W5A030 5-Speed

5 Gears

with additional

planetary gear set

comfort, spreading, number of gears, torque, mechatronic, efficiency

More than 50 years of experience in developing and manufacturing

automatic transmissions

1960 1979 1995 2003 2010 1971 Next Gen AT 1988



CLC-Klasse

C-Klasse

E-Klasse

CL-Klasse

S-Klasse

R-Klasse M-Klasse

GLK-Klasse

GL-Klasse

CLS-Klasse

Sprinter

Infiniti

SLK-Klasse

SL-Klasse

AMG

Mercedes-Benz Fahrzeuge mit 7G-TRONIC PLUS (Benzin- und Diesel-Motoren 4/6/8 Zylinder)



Electric-motor-driven

auxiliary transmission

oil pump for start-stop

operation*

New speed-adaptive,

twin-turbine torsional

damper with centrifugal

pendulum*

World's lowest-viscosity

automatic transmission

oil*

Rolling-resistance-reducing

adjustments for planetary gear

set materials, bearings and seals

Optimization of the electro-

hydraulic control and ECO shift

programs

7G-TRONIC PLUS ( 700 Nm ) More comfort. More driving pleasure. Lower fuel consumption. *World

premieres

7G-TRONIC PLUS 1st place in

Daimler

Environmental

Leadership Award

2011

Category

Product-related

environmental

protection

Jury member:

Minister for the

Environment of the

Federal State of

Baden-Wuerttemberg

Application – CANape Datamining



GSM

Vehicle durability

GPS

Server

User

Engineer

Mobil communication

User Interface

Server

Testbench

Driver model - Accelerator pedal - Brake - Gear

- Transmission mode - ...

Auxiliary -

consumer

Engine Axle gear Transmission

Brake

Wheel

MDF Files (Canape)

Analyse process

Starting analysis script.

Internal tool – Results Excel File

Today

Excel File – starting macro

-> Overview Analyse

Starting CANape

Measurement analysis


7G-TRONIC PLUS

Analyse process Motivation

Analysis of huge and / or many measurement files spends a lot of time

and is very uncomfortable (x GB).

Analysis of endurance tests and / or test bench measurements.

Make especially interceptions like “bad shift quality” or “transmission

shifts roughly” available / visible in the measurement data.

Find critical thermally conditions

Start up with an existing in house tool based on MS Excel© to develop a

“one tool solution”.

Create an opportunity to integrate analysis of data logger files (GL 1000)

Creating statistics “What was analysed”


7G-TRONIC PLUS

Grenzwertkennfelder Reibarbeit / Reibleistung

0,50

1,00

1,50

2,00

2,50

3,00

3,50

4,00

4,50

5,00

0,00 0,20 0,40 0,60 0,80 1,00

Reibarbeit W_spez [J/mm^2]

Re

ible

istu

ng

P_

sp

ez [

W/m

m^

2]

DYNAX 880-88 /Belagdicke 0,67mm




BW 4329 /Belagdicke 0,67mm


J.Meyer-Berge - EP/MTA - 15.02.2011

Analysis – Shift Quality

Datamining result:

Every point in the diagramm is a

gear change. Easy understandable.



Zuschaltende Kupplung

Abtriebssignal



Grenzwertkennfelder Reibarbeit / Reibleistung

0,50

1,00

1,50

2,00

2,50

3,00

3,50

4,00

4,50

5,00

0,00 0,20 0,40 0,60 0,80 1,00

Reibarbeit W_spez [J/mm^2]

Re

ible

istu

ng

P_

sp

ez [

W/m

m^

2]







J.Meyer-Berge - EP/MTA - 15.02.2011

Sp

ecif

ic F

ricti

on

Pow

er

[W/

mm

²]

Specific Friction Work [J/mm²]

P_spec = f ( W_spec )

Examples of different disk

materials and thicknesses

Beginning clutch disk

darkening during the testing

due to divergence to power-

and/or energy criteria

Transmission thermal specification Observation violation of the limit

DataMining Setup Panel



Analysis Results



Field of Calibration

Endurance Tests

In the car endurance test at Mercedes-Benz Cars XCP – channels are

measured for the torque converter clutch and the clutch control of the

7G-Tronic©

In the vehicle

Analysis of data loggers (e.g. GL1000 from Vector) during a evaluation

test drive or customer vehicle.

Software Application

Find quickly wrong or bad calibration data.

Optimize calibration data on the basis of real vehicle measurements.

Test bench

e.g. Analysis of special component experiments.





Thank you for your attention!

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VeCo12 2 ECUcalibration 1 Tepe Lecture

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