Electric and hybrid electric powertrains achieve very high energy efficiency, and therefore allow for very low kilometer specific CO2 emissions. In hybrid and electric powertrains, the supervisory control is a crucial task, since the so-called "energy management" is the main factor for achieving the best possible energy efficiency.
Natural gas consists mainly of methane (CH4). Due to the higher hydrogen to carbon ratio, the combustion of methane produces around 25% less carbon dioxide (CO2) per unit energy delivered than gasoline or diesel. Therefore, natural gas engines have the potential to reach very low kilometer specific CO2 emissions. In the future, methane engines may even be operated using renewable fuels that are synthesized in the power-to-gas process using excess electricity from renewable sources.
Despite the recent advancements in electric powertrains and renewable propulsion sources, the transportation of goods and the heavy-duty sectors are still heavily reliant on fossil Diesel engines. Diesel engines are very robust and provide both good energy- and power-density. Due to their lean burning combustion with a high compression ratio, Diesel engines are inherently more fuel-efficient than spark-ignition gasoline engines. This makes them an interesting choice when aiming to minimize CO2-emissions, especially in heavy-duty applications.
Model-Based Optimization for Diesel Engine Systems (concluded)
Diesel engines provide a large number of degrees of freedom. This project uses model-based techniques to optimize the performance of Diesel engines.
Around 80% of all passenger vehicles worldwide are still powered by gasoline engines. Therefore any improvement in this technology has a large potential to reduce negative side effects, such as air pollution, resource consumption and carbon-dioxide emission.
PhD-Theses on Gasoline Engines
Pascal Kiwitz: Diss. ETH No. 20815
Christoph Voser: Diss. ETH No. 20706
Wolfgang Schick: Diss. ETH No. 19386
Raphael Suard: Diss. ETH No. 18775
Christian Dönitz: Diss. ETH No. 18761
Roman Möller: Diss. ETH No. 18426
Daniel Rupp: Diss. ETH No. 18302
Thomas Böhme: Diss. ETH No. 17703
Apart from engines and vehicle propulsion systems, there are a number of vehicular applications, where control and optimization are equally important. The topics autonomous parking, on-board diagnosis of faults, as well as the control of the heating, ventilation and air-conditioning of the passenger cabin are highly interesting control tasks. Currently, however, the research group of Prof. Onder does not focus on these topics, and consequently there are no projects ongoing in this field.
Many diseases that occur in humans are caused by insufficient regulation of processes. The blood circulation system is one example of a control system that is based on feedback. Ventricular asisst devices are an example of how electronically controlled actuators can assist the human body in this regulation process. However, the control of such devices is crucial for the patient. Therefore, we aim to apply model based control and design methods, as well as hardware-in-the-loop testing procedures to improve these biomedical systems. Prof. Onder does not pursue research in biomedical systems, the corresponding research group is now supervised by Prof. Meboldt at PdZ.
Circulatory Assist Project (concluded)
This project deals with the control of blood pumps that are used for mechanical circulatory support. The goal is to develop a control strategy that is able to promote recovery of a failing heart. More…
Almost 40% of the total energy consumed worldwide is used in residential and commercial buildings. Furthermore, unlike with vehicles, where industry has been consequently working towards maximizing the energy efficiency, in the building sector, there are still huge potentials for reducing the energy consumption - not only in design and architecture, but also in the control of energy flows and facility management. Here, we use systematic, model-based optimization techniques with the aim to improve energy efficiency of buildings. Prof. Onder does not pursue research in this topic. Similar research projects can be found at the departement for architecture.