Presentation Prof Ritschel

Automotive Engineering in NRW: The BOmobil Electric Mini Van

Prof. Dr.-Ing. Wolf Ritschel

mobil

3 professors

27 research assistants

Approx. 30 students

2 locations:

- BOWerk,

Opelring 1

- HS Bochum,

Lennershofstrasse

Institute for Electromobility

10 years of electric vehicles at Bochum University of Applied Sciences

2001 - 2003Hans Go

1999 - 2001Mad Doc 3

2005 - 2007SolarWorld No. 1

2008 - 2009BO Cruiser

A step towards electromobility for everyday use

BO CruiserThe dimensions of a normal car, yet not conceived as a racing car but rather as a realistic everyday alternative.

A step towards electromobility for everyday use

Sustainable Individual Mobility Car:

� Aerodynamics taken over from the BO Cruiser� Space for 3 people� Hub motor

SIMCAR

Construction of prototypes at Bochum University of Applied Sciences

BOmobil: Project and development objectives

� Expansion of competences in the field of electromobility inBochum and in the Rhine-Ruhr region

� Use of local automotive engineering competences (NRW-Auto)

� Build-up of competences for low-volume commercialproduction at the Opel plant in Bochum

� Range and driving performance optimised to fit theapplication

� Clearly defined, homogenous market demand (parcel service) of approx. 500,000 units worldwide per year, of which roughly 1/3 every three or four years

� Low marketing expenditure, due to low number of large target customers in initial phase

� Feasibility analysis in collaboration with Ernst & Young indicated that 46% of companies interviewed expressed an interest in the concept (Volume 2-1000 veh. / customer)

The city logistics market

Space frame construction(Aluminium)

Electric drive

Wheel hub drive

Vehicle concept

Integration of standard components

Composite components (fibreglass, natural fibre, carbon fibre)

“Skateboard” chassis

Li-Ion energy storage

Single-cell and safety monitoring

The vehicle

mobil

� Length: 4,000 mm

� Width: 1,690 mm

� Height: 1,650 mm

� Kerb weight: approx. 1000 kg

� Load capacity: 500 kg

� 4 wheel hub motors

� Output 44 kW

� Drive battery Li-Ion

� Taxi

� Local courier services

� Mobile nursing services

� Recovery vehicles

� Service vehicles

� Construction vehicles

� Tradesman’s vehicles

� Etc.

Derivative vehicles for different applications

BOmobil ’s skateboard-type construction

BOmobil ’s wheel hub motor

Construction of the wheel hub motor• Structure of fully integrated drive• Construction of axis and brake disc

mounting• Position of individual components in

overall assembly

Technical data• 235 /35 R19 wheel/tyre• 300 Nm max. torque• 1050 rpm max. speed• 11kW output

Electronic components

Cable sets

Use of local engineering competences

Plastic bodyworkcomponents

Energy storage devices

Standard vehicle components

BochumVehicle registration

ruhrmobil-E network

Objectives:The ruhrmobil-E network has set itself the target of transforming Bochum into a model town in terms of electromobility and so contribute to the “Rhine-Ruhr Electromobility Model Region” .

In future, electric vehicles are to be designed, built and driven in Bochum.

Focus areas

�Development of electric vehicles and components

�Production: electric cars, electric bicycles

�Infrastructure: charging stations and networks, car sharing, repair workshops, parts suppliers

If you had to invent a new technology for NRW, it would have to be

electromobility

Energy technologyComputer

science

Mechanical engineering

Mobility

Automation technology

Production technology

Lennershofstrasse 140 44801 Bochum Tel.: +49 234 3210 382 Fax: +49 234 3214 992 [email protected]

www.institut-elektromobilitaet.de

Thank you for your attention.