Manfred Schmidt - Siemens

Definition of City Bus• Start and stop frequently• Run at low average speeds• Operate for long hours;from early morning until late atnight• Lifetime of 15 years or up to60,000 operating hoursIf the energy lost during braking could be saved and used for the next start,the overall fuel consumption would go down: Hybrid Drive with electrical storage is the solution!Page 201.06.2010 Manfred SchmidtSiemens Answers: Sustainable Future

Where do the Savings come from?Mainly from recuperation of braking energyFurther reasons for savings:Start-stop function forcombustion engineOptimized auxiliary conceptbased on electric motorsOperate combustion enginein optimum point, reducetransientsPage 301.06.2010 Manfred SchmidtSiemens Answers: Sustainable Future

Reason for Hybrid Traction in City BusesBased on the driving cycle, theenergy storage technology, theelectric components and anadvanced energy management,a reduction of up to40% in fuel and CO 2emissionsis possible.• Increased global and local pressure on emissions reductionincluding CO2• Increased requirements for noise reduction• Increase in attractiveness and comfort• Achieve significant fuel savings to reduce operating costsPage 401.06.2010 Manfred SchmidtSiemens Answers: Sustainable Future

Flexibility 3 with Siemens ELFAFlexibility in bus sizeThe Siemens ELFA System is modular and can be adapted to theperformance requirements of the bus, i.e length, weight, climbingability etc.Flexibility in energy mixFollowing the technical progress, Siemens ELFA System can beefficiently adapted to new energy sources, e.g. from diesel to purebattery or fuel cell. This can be done at minimum effort for installationand additional costs.Flexibility in mechanical integrationThe ELFA serial hybrid allows most freedom in arrangement of thecomponents since traction and power module are connected byelectrical wiresPage 601.06.2010 Manfred SchmidtSiemens Answers: Sustainable Future

Three examples of current reference projectsTEMSA Ultra-Cap Hybrid Bus• Standard low-floor 12 m city bus with ultracapacitorstorage technology• Prototype successfully testedBuses from Wrightbus for Las Vegas• Articulated diesel hybrid buses 18 m with newPEMmotor technology, 400 kW max. power• Acceleration 0 – 50 km/h in 10 sec with 29 tonsfull weightNew Bus for London from Wrightbus for London• 20 diesel hybrid buses delivered to TfL with up to40% fuel saving in test results• Another 600 DD buses now ordered by TfLas “New Bus For London”Page 701.06.2010 Manfred SchmidtSiemens Answers: Sustainable Future

Bus Transport System of the Future … a possible VisionBattery/UCapHybrid BusesBattery Busesreducedemission zonereducedemission zoneeBRT corridorzeroemissionzoneBattery Hybrid BusesPage 9reducedemission zonetravel in the reduced emission zone and throughthe zero emission zoneeBRT corridor01.06.2010 Manfred Schmidtreducedemission zoneUCap HybridBusesSiemens Answers: Sustainable Future

What is eBRT?• Loading at stations• Storage of energy on board• 100% electric propulsion• no local CO2 emission• silence & comfort• high energetic efficiency• optimized ride qualityLoadinginterfacePage 1001.06.2010 Manfred SchmidtSiemens Answers: Sustainable Future

Electric traction allows for New Options!Page 1101.06.2010 Manfred SchmidtSiemens Answers: Sustainable Future

Why Siemens?• Siemens ELFA puts the focus on serial hybrid drivesThis type of hybrid drive allows maximum recuperation of braking energy and gives maximumflexibility in control of the combustion engine (engine stop function).This results in a reduction of fuel consumption up to 40% and the corresponding emission reduction.Further, the serial hybrid drive is the platform for the “revolution” to a zero emission vehicle, e.g. fuelcell, pure battery bus or electric charging bus.• The key components are made by SiemensThis ensures the highest manufacturing and quality standards together with optimized cost structure.• Maximum flexibility with the Siemens ELFA systemWith the use of few standardized components the modular structure of the system allows fulfilmentof the OEM's individual performance requirements for various types and sizes of buses. In this way,high production volume is achieveable, which save costs and increase quality.Page 1201.06.2010 Manfred SchmidtSiemens Answers: Sustainable Future

Siemens ReferencesMAN, 12m Ucap Hybrid Bus Mercedes Citaro Hybrid Bus Van Hool Hybrid Bus TEMSA Hybrid BusMitsubishi FUSO Hybrid BusNew Flyer Gasoline HybridFuel Cell Hybrid (Vancouver)Faun, Hybrid Garbage TruckAgrale Hybrid BusAshok Leyland Hybrid BusTATA Hybrid BusMarine ApplicationPage 1301.06.2010 Manfred SchmidtSiemens Answers: Sustainable Future

Thank you for your attention!Manfred SchmidtDirector Marketing & Sales Hybrid DrivesI DT LD T HDVogelweiherstrasse 1- 1590441 NurembergMobile: +49 173 282 3436E-mail: manfred.j.schmidt@ siemens.comSiemens Sanayi ve Ticaret A.Ş