The University of Cooperative Education Industrial Engineering Medical

The University of Cooperative Education Industrial Engineering Medical Engineering Electrical Engineering Financial Management Computer Science Public Management Bautzen twinned with Jelenia Góra www. ba-bautzen. de 1

Conference and Exhibition on E-Mobility More information: http: //verein. ba-bautzen. de www. ba-bautzen. de 2

Student Project on E-Mobility www. ba-bautzen. de 3

Implementation of a Practical Charging Technique for E-Bikes Florian Hempel (11 E-A) and Dr Daniel Raabe BA-Bautzen www. ba-bautzen. de

Agenda I. Introduction to E-Mobility II. Bike Hire Scheme ‚Oberlausitz per Rad‘ III. Current charging technology IV. Our concept for a practical charging technology for E-Bikes within the rental network www. ba-bautzen. de 5

E-Car (Renault Twizy), BEV E-Mobility Charging tower > E-Mobility = the use of electric vehicles for transportation > E-Mobility combined with renewable energies could be one answer to global climate change, increased global population & limited resources > Aim of the German Federal Gov. is to put 1 Mio Electric Vehicles on the road by 2020. > This seems to be unlikely considering current registration figures of E-cars (2012 only 3, 000; Source: KBA). > With respect to E-Bikes incl. Pedelecs we have already hit the 1 Mio threshold according to the bike association ADFC (sales of EBikes 2011– 200, 000, Sr: Derby Cycles) Number of E-cars on the road Source: zsw. bw. de www. ba-bautzen. de 6

Pedelec and E-Bike Pedelec (Pedal Electric Cycle) supports the user during cycling (max. power 250 Watts and max. velocity 25 km/h E-Bike (Electric Bike) supports the user even without cycling (using the pedals) (max. power 500 Watts and max. velocity 20 km/h

National Development Plan E-Mobility Main objectives of the plan: I. Improvement of energy storage/ battery technology (for increased range) II. New vehicle technology (e. g. more efficient drive technology) III. Development of an area wide charging grid Various initiatives to support this plan such as Quelle: Nationaler Entwicklungsplan Elektromobilität der Bundesregierung – BMBF, 2009 http: //www. elektromobilitaet-verbindet. de Although the use of E-Bikes has several advantages in terms of sustainability and local development e. g. through toursim the further development of E-Bikes and its infrastructure is not support by current initiatives such as BAYERN-SACHSEN ELEKTROMOBILITÄT VERBINDET one example www. ba-bautzen. de 8

Bike Hire Scheme ‚Oberlausitz per Rad‘ Network Facts: > An expanding cross-border network of 20 bike rental points supporting bike toursim > Bikes can be picked at one rental point & returned at a differental point with no additional charge > Rental points are independently managed by hotels, bike shops, tourist information points or local park administrations > Complete technical service by Little John Bikes > Opening of a new int. bike rental station in Krásna Lípa (Czech Republic) in April 2014 > More int. partners wanted! > Unfortunetely, the scheme currently supports no EMobility and in particular no E-Bikes due to the lack of a practical bike charging infrastructure > www. ba-bautzen. de 9

E-Bike charging system Pedelec E-Bike Essensial for an E-Bike or Pedelec is a sufficient battery providing sufficient range. Unfortuenetely, these batteries have to be charged! How do we do this? www. ba-bautzen. de 10

E-Bike charging system Drawbacks of the current system: > Charging E-Bikes/ Pedelecs The battery of an E-Bike can be charged removed from the bike > in a separate charging station to 230 V socket Battery in the bike Battery removed charger docking station > or without moving the battery from the bike to 230 V socket requires the use of external battery chargers that are either carried by the user to the charging st. or supplied at the charging st. > Batteries and battery chargers are not standardized > Charging E-Bikes during long distance rides requires also a safe environment such as a dedicated room because the charging system of an E-Bike is currently not lockable www. ba-bautzen. de 11

What companies offer for bike users… No battery charger available at the charging point Open access charging pillar with 230 V power sockets (CEE 7/5) Not a safe environment Quelle: Belectric Drive Gmb. H, Kitzingen No network www. ba-bautzen. de 12

Our solution > Charging tower for partners of the bike scheme ‚Oberlausitz per Rad‘ > Having drawers for standardized and none standardized charging > Using renewable energy > Drawers are lockable www. ba-bautzen. de 13

Thank you Florian Hempel (11 E-A) and Dr Daniel Raabe BA-Bautzen raabe@ba-bautzen. de

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