Fot Net Data Seminar Benmimoun, IKA

www.eurofot-ip.eu

FOT-Net Seminar

Data acquisition at the German1-VMC in

euroFOT

Mohamed Benmimoun

13.05.2009, Munich

Institut für Kraftfahrzeuge (IKA)

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Introduction

euroFOT• euroFOT project started in May 2008

• End of project in August 2011

Friday, 29 May 200929bm053.ppt - FOT-Net Seminar

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Introduction

Vehicle management center• The vehicle fleet of an OEM is coordinated and managed by a

Vehicle management center (VMC)

• VMC is an entity which can be seen as the overall management

entity.

• Each VMC represents a country in Europe

• Germany the VMC is divided into

German1

German2


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Introduction

VMCs across Europe

Swedish-VMC• VOLVO Technology

• VOLVO Cars (VCC)

French-VMC• PSA (CEESAR)

German2-VMC• DAIMLER AG

• BMW Group

German1-VMC• FORD

• MAN

• VW/AUDI

Italian-VMC• CRF

France

Germany

Italy

Sweden


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Introduction

German1-VMC


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Naturalistic FOT

Definition of required data• Based on the hypotheses and the research question of the FOT

so called performance indicators are indentified, e.g.

TTC, THW, average speed etc.

• Performance indicators can be derived from certain signals, e.g.

vehicle speed, distance to forward vehicle, steering angle etc.

• These signals have to be identified and are afterwards recorded

by using of a data acquisition system

• For the analysis the recorded data is uploaded to a database

• GPS signal will be used to derive additional information from a

digital map, e.g. road type, number of lanes etc.


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Naturalistic FOT

RequirementsAs the FOT at the German1 shall be as naturalistic as possible

The data consist only of CAN data

No additional sensors (video, eye trackers etc.) will be used

No additional tasks to the driver (change of hard discs, configuration

of data logger etc.) will be required

The FOT vehicles are driven by ordinary drivers

Driver is also owner of the vehicle:

Modification of vehicles has to be reduced to a minimum

Data acquisition system (DAS) has to be installed in a manner, that:

driver is not distracted by the DAS

integration into the vehicle is conducted without significant modifications

on the vehicle


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Naturalistic FOT

Requirements• All 240 vehicles have to be equipped with a DAS, which enables

recording of all relevant measured values

• As driver shall not be stressed with additional FOT specific tasks

Data upload procedure (upload of the data from the DAS to a certaindata server) is performed without any requirements and actions withregard to the driver

Data acquisition system with a GPRS modem (for wireless dataupload, diagnostics and re-configuration)

• Further requirements:

The data needs to be stored at first on a temporary storage on theDAS

Provision of GPS information of the vehicle location

GPS receiver, hard disc (temporary storage) needs to be integratedinto the data logger by ensuring a compact design, due to themodification restriction


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Data acquisition system

Requirements• Logging of CAN data from the vehicle CAN-busses

• Temporary storage of the logged data

• Compression and encryption of the data

• Integration of a GPRS modem

• Wireless upload of the data via GPRS (autonomous or after

request)

• Communication interface to the data base (data upload,

localisation, status information etc.)

• Compact design for integration into the vehicles without significant

modifications

• Applicable for automotive application (high durability with regard

to vibration, temperature etc.)

• Reliability


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Features of selected DASBased on the requirements on the DAS a data logger with the

following features was selected:

• 4 CAN channels for logging from different CAN busses

• GPRS quad band modem

• GPS receiver

• Built-in real time clock (with internal battery)

• Socket for SD and SIM card

• USB 2.0

• Application for logging configuration and data conversion

• Support of DBC databases for signal selection

• Firmware upgrade through GPRS


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CTAG’s data logger


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Integration into a MAN truck


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Data upload and storage procedure

Overview• Data upload and storage procedure for the German1 fleet will be

defined and finally developed by IKA

• Upload and storage procedure will be validated in the piloting

phase

• Data acquisition will be applied for a duration of 1 year

• Estimated amount of data at the German1-VMC adds up to

approximately 3500 GB (CAN only data and GPS information)

• Recorded data will autonomously be uploaded via GPRS to a

centralized data server

• Entire process chain (from data recording to storage on the data

base) is designed to work completely autonomously


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Data upload and storage procedure

Overview


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Data upload procedure

Communication interface• Based on a communication interface installed on the data base

the data upload can be initiated

• Communication interface provides all information with regard to

the data logger and vehicle by using GPRS

• The communication interface can be used for the following tasks:

Autonomously synchronisation of data

View DAS which have connected to the server and its most important

parameters

Map matching of vehicle‘s position, based on the GPS information

View the received CAN frames and received GPS frames from each

monitored DAS

Remote control of DAS

Re-configuration of DAS


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Data upload procedure

GUI


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Data management

Central management system• The communication interface of the DAS will be integrated into

the central management system (CMS)

• CMS manages the whole data upload and enrichment procedure

...Fleet of 250 vehicles

equipped with

CTAG DAS

GPRS Service Provider

Central Management System (CMS)Operators


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Data management

Structure CMSCMS Software

Package

Upload

Processor

Fleet

Manager Data Manager

CMS Core Manager

Diagnostic

Manager

Configuration

Manager

SQL Database Manager

Conversion

Manager

Check and Plausib.

Manager

Enrichment and PI

Manager

Enrich ExtensionCheck Extension

CDS


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Next steps

• First tests for the assessment the DAS have been conducted

• Extensive tests of DAS will be conducted within the next weeks

• The software for the upload procedure is available but needs to

be integrated into the CMS

• CMS will be developed as soon as final requirements on data

upload and storage are defined

• The validation of the software and hardware will be conducted

within the piloting phase in September 2009


www.eurofot-ip.euFriday, 29 May

2009

9bm053.ppt - FOT-Net Seminar

Thank you for your attention

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Fot Net Data Seminar Benmimoun, IKA