Team Abteilung Fahrzeugantriebssysteme
Labors Abteilung Fahrzeugantriebssysteme
Projekte Abteilung Fahrzeugantriebssysteme
Dissertationen Abteilung Fahrzeugantriebssysteme
Lehraufträge Abteilung Fahrzeugantriebssysteme
Konformitätsbewertungsstelle DPF-LRV

Projects Internal Combustion Engines
This section presents a choice of research projects in the field of internal combustion engines. You can follow the links to read about the projects in more depth, download research reports, publications and background material.
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Real world consumptions of battery electric vehicles (BEV)

  • Measurements on BEVs on our chassis dynos by taking in account various driving profiles
  • Measurements on BEVs during normal daily operation
  • Analysis of the energetic consumption
  • Development of a simplified model to calculate the energetic consumption of  a BEV


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Das Ziel des CoHyb-Projektes ist die Erforschung optimaler, bedarfsgerechter Strukturen und Dimensionierung verbrennungsmotorischer Brennverfahren für unterschiedliche Kraftstoffe in Hybridantrieben bei Fahrzeuganwendungen. Im Genaueren werden optimale, fremdgezündete Brennverfahren für Verbrennungsmotoren mit gasförmigen Kraftstoffen untersucht. Das Projekt ist eine Zusammenarbeit mit anderen Abteilungen der Empa und der ETH.

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Hy.muve-Projektfahrzeug auf dem Rollenprüfstand

hy.muve - Hydrogen driven municipal vehicle

  • Entwicklung eines wasserstoffbetriebenen Kompaktkehrfahrzeuges
  • Erprobung des Fahrzeuges während 18 Monaten in verschiedenen Schweizer Städten und Gemeinden
  • Untersuchung des Alterungsverhaltens von Brennstoffzellenantriebs unter realen Bedingungen
  • Bearbeitung sozio-ökonomischer Fragestellungen im Zusammenhang mit Wasserstoffantrieben und Entwicklung einer Markteinführungsstrategie

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The CLEVER Project

This is a joint project together with ETH Zürich (Measurement and Control Lab, Aerothermochemistry and Combustion Systems Lab), Volkswagen and Bosch. The goal of the CLEVER Project is the R&D of a new natural gas or biogas combustion process in a dedicated engine. In combination with a parallel electric hybrid powertrain, the demonstration vehicle should emit about 40% less CO2 than a gasoline vehicle with the same performance. The technology will be able to fulfil the most stringent European emission limits Euro-5.

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On-Road Measurements, Test Bench Measurements and Emission Simulations for a Tractor-Semitrailer in Trans-Alpine Operation

  • On-road emission and fuel consumption measurements of a 40 ton tractor-semitrailer in trans-alpine operation
  • Emission and fuel consumption measurement of the vehicle’s engine in several cycles on a transient test bench
  • Emission and fuel consumption simulation of the driven trans-alpine test runs using the emissions measured on the test bench and the driving profile measured on the road as model inputs

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The Clean Engine Vehicle Project

The goal of the Clean Engine Vehicle project (CEV) was the conversion of a gasoline engine to dedicated natural gas operation in order to achieve a significant reduction in CO2 emissions. The targeted reduction was 30% compared with a gasoline vehicle with similar performance. Along with the reduction in CO2 emissions, the second major requirement of the project was compliance of the results with Euro-4 and SULEV emission limits.

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PMP Comparison study of particle measurement systems for future type approval application

In this experimental study 21 different particle measurement instruments were compared by simultaneous measurements on a heavy duty engine at sub-Euro IV emission level. The work was performed in the framework of the Particle Measurement Programme (PMP) under auspices of the UNECE GRPE. The aim of PMP is to identify candidate systems for the measurement of ultrafine particles from heavy and light duty vehicles for type approval purpose.

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Real world emissions and fuel consumptions

  • What are the exhaust emissions of road traffic in an area like Switzerland, Germany or a town like Zürich?
  • What is the evolution of these emissions?
  • What would be the impact of different measures?

To answer these questions, Empa is monitoring the emissions of road vehicles as realistic as possible. Beside evaluating vehicles “out of the traffic” within realistic driving patterns, many different aspects as cold start emissions, Influence of air conditions or fuel influence as well as a variety of different pollutants, ozone killers, poisonous and carcinogen species, greenhouse gases are investigated in. An actual focus is given to particle number and NO2 emissions.

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