Project EBSF_2

Stuttgart, 18.10.2017

Dr. Mario Bareiß, Johannes Klampfl

EvoBus GmbH

Daimler Buses

Reference vs. test vehicle

EvoBus - Project EBSF2 || Dr. Mario Bareiß, Johannes Klampfl || 18.10.2017 || Seite 2

Reference vehicle Test vehicle

• Standard Citaro 2 vehicle

• Articulated vehicle

• HVAC system: State of art 2015

• Belt-driven compressor

• Regular vehicle at SSB

• Test vehicle at EvoBus

• Articulated vehicle

• HVAC system: Prototype 2017

• HV compressor

• Heat pump for passenger compartment

Daimler Buses

Test vehicle

EvoBus - Project EBSF2 || Dr. Mario Bareiß, Johannes Klampfl || 18.10.2017 || Seite 3

Roof unit 1

incl. HV compressor

Roof unit 2

incl. HV compressor

Power generator

Current converter

• Test vehicle contains diesel engine

• Heat pump for passenger compartment

• Power generator with 400 V

• Current converter to 700V /400 V

Daimler Buses

Innovative HVAC leads to less energy consumption

EvoBus - Project EBSF2 || Dr. Mario Bareiß, Johannes Klampfl || 18.10.2017 || Seite 4

• Test vehicle with innovative HVAC system

• Measurements of HVAC energy consumption between reference vehicle und test vehicle

• Goal: Proof of 30% reduction in energy consumption (in average, on yearly basis)

Daimler Buses

Testing in real operational conditions: Stuttgart Line 43

EvoBus - Project EBSF2 || Dr. Mario Bareiß, Johannes Klampfl || 18.10.2017 || Seite 5

Daimler Buses

Preliminary results

EvoBus - Project EBSF2 || Dr. Mario Bareiß, Johannes Klampfl || 18.10.2017 || Seite 6

ID Topic Season Result

KPI 03.a Reduction of energy consumption in overall vehicle Winter 9,7 %

KPI 03.a Reduction of energy consumption in overall vehicle Spring (cold temp.) 14,2 %