Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Hermann Rottengruber"'
Autor:
Robin Tempelhagen, Andreas Gerlach, Sebastian Benecke, Kevin Klepatz, Roberto Leidhold, Hermann Rottengruber
Publikováno v:
Applied Sciences, Vol 11, Iss 13, p 5981 (2021)
Internal combustion engines with a crankshaft have been successfully developed for many years. They are lacking in the fact that the piston trajectory, i.e., position as a function of time, is limited by the crankshaft motion law. Position-controlled
Externí odkaz:
https://doaj.org/article/b4abdfdb95b84cdcadbf806bd90b94fd
Publikováno v:
Energies, Vol 12, Iss 18, p 3478 (2019)
This work presents an open-source, dynamic, 1D, proton exchange membrane fuel cell model suitable for real-time applications. It estimates the cell voltage based on activation, ohmic and concentration overpotentials and considers water transport thro
Externí odkaz:
https://doaj.org/article/704ae676b8cf44de82de233901c4563d
Publikováno v:
Automotive and Engine Technology. 8:95-107
The reduction of carbon dioxide emissions and the corresponding increase in gasoline engine efficiency are crucial in engine development. Wall heat losses are a major cause of efficiency loss, accounting for 15–30% of the total fuel energy. One pro
Autor:
Reddy Babu Siddareddy, Tim Franken, Michal Pasternak, Larisa Leon de Syniawa, Johannes Oder, Hermann Rottengruber, Fabian Mauss
Publikováno v:
SAE Technical Paper Series.
During cold start of natural gas engines, increased methane and formaldehyde emissions can be released due to flame quenching on cold cylinder walls, misfiring and the catalyst not being fully active at low temperatures. Euro 6 legislation does not r
Autor:
Larisa Leon de Syniawa, Reddy Babu Siddareddy, Johannes Oder, Tim Franken, Vivien Guenther, Hermann Rottengruber, Fabian Mauss
Publikováno v:
SAE Technical Paper Series.
In contrast to the currently primarily used liquid fuels (diesel and gasoline), methane (CH4) as a fuel offers a high potential for a significant reduction of greenhouse gas emissions (GHG). This advantage can only be used if tailpipe CH4 emissions a
Publikováno v:
Automotive and Engine Technology. 7:115-136
Using Vehicle Thermal Management (VTM) simulations to predict the thermal load experienced by components is a popular method within the automotive industry. The VTM simulation approach is fast becoming equivalent to conducting thermal load tests with
Publikováno v:
ATZ - Automobiltechnische Zeitschrift. 124:56-61
Publikováno v:
ATZ worldwide. 124:56-59
Publikováno v:
Automotive and Engine Technology. 6:261-274
When buying a car, the acoustic impression of quality of a vehicle drive train is becoming more and more relevant. The perceived sound quality of the engine unit plays a key role here. Due to the nature of individual background noises, that sound qua
Publikováno v:
Automotive and Engine Technology. 6:181-189
Proton exchange membrane (PEM) fuel cell vehicles require an electrical intermediate storage system to compensate for dynamic load requirements. That storage system uses a battery and has the task to increase tolerance to dynamic operation. In additi