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Comparative study on the friction behaviour of piston/bore interface technologies
Springer Science and Business Media LLC - Tập 4 Số 3 - Trang 101-109 - 2019
Engine crank case designs for passenger car applications are based today on two
main material technologies: grey cast iron and an increasing share of
aluminium-based concepts. Due to the low wear resistance of aluminium, the
latter concepts require a wear protective layer for the cylinder bore surface.
Iron-based thermal spray coats are widely used for this purpose. The coating
improves the tribol...
Different hardware approaches implementing low-pressure exhaust gas recirculation during the dynamic operation of turbocharged gasoline engines
Springer Science and Business Media LLC - - 2018
Current experimental developments in 48 V-based CI-driven SUVs in response to expected future EU7 legislation
Springer Science and Business Media LLC - - 2022
AbstractIn this paper, we describe experimental developments in an Exhaust
Aftertreatment System (EAS) used in a four-cylinder Compression Ignition (CI)
engine. To meet the carbon dioxide (CO$$_\mathrm {2}$$ 2 ) fleet limit values
and to demonstrate a clean emission concept, the CI engine needs to be further
developed in a hybridized, modern form before it can be included in the future
fleet. In t...
Usage-based optimisation of characteristic maps for conceptual powertrain design
Springer Science and Business Media LLC - Tập 2 - Trang 49-61 - 2017
With an increasing number of vehicles having alternative powertrains, the choice
of the most appropriate powertrain for a vehicle class or load cycle is more
challenging. This paper introduces a method for usage-based optimisation of
powertrains. Based on a longitudinal dynamic simulation, the characteristic maps
of the traction machines are optimised for different user cycles and these
characteri...
Study of system layouts for road wetness quantification via tire spray
Springer Science and Business Media LLC - Tập 4 Số 1-2 - Trang 63-73 - 2019
Prediction of the airborne sound transmission through the front end of a vehicle
Springer Science and Business Media LLC - Tập 4 - Trang 169-178 - 2019
Acoustics represents a quality feature of a passenger vehicle. During the first
development phases, prediction tools of the acoustic performance are required to
assess in the design process. A combination of numerical and experimental data
provides a good compromise between accuracy and modeling effort. A key part of
the airborne noise transmission chain are the different passive acoustic
treatmen...
Operation of a diesel engine with intake manifold alcohol injection
Springer Science and Business Media LLC - Tập 4 - Trang 17-28 - 2019
The usage of ethanol and two different mixtures of ethanol and gasoline (E85 and
E65) was investigated on a modified diesel engine designed to work in a
dual-fuel combustion mode with intake manifold alcohol injection. The tests were
conducted at five operating points covering low, medium and high load and
different engine speeds. Additionally, an engine-process simulation model was
built for the ...
Novel dynamic conditioning unit for the reproduction of real driving conditions on a test bed
Springer Science and Business Media LLC - Tập 5 - Trang 199-213 - 2020
The importance of thermal management has increased with the advent of
electrification and fuel cell. The dynamic response required from the thermal
circuit has also increased and cannot be reproduced by today’s conditioning
systems. This contribution describes a novel, considerably more powerful
conditioning concept with three main characteristics: The new conditioning
concept is validated via sim...
Injection strategies for low HC raw emissions in SI engines with CNG direct injection
Springer Science and Business Media LLC - Tập 1 - Trang 81-91 - 2016
The energy source natural gas represents an attractive alternative fuel for SI
engines due to its suitable chemical properties. But the lower performance yield
and the insufficient infrastructure lead to a rejection by the customer. One
approach to gain acceptance is the improvement of the driveability of the
natural gas-powered vehicles. Direct injection of CNG is a technology with
potential to a...
Analysis and application of steering systems on a steering test bench
Springer Science and Business Media LLC - - 2016
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