Search Results

The 37 papers in this technical paper collection focus on SI combustion technologies that employ direct, in-cylinder fuel injection. Topics of particular interest include in-cylinder fuel injection and spray studies, flow/spray interaction and in-cylinder mixture formation studies, and combustion chamber shape optimization. Papers also focus on combustion technologies in 4-stroke and 2-stroke engines, including premixed, port injected, and DI engine.

The 57 papers in this technical paper collection describe technology developments and the integration of these technologies into new emission control systems. Topics include DPF substrates and systems, selective catalytic reduction (SCR), HC-DeNOx, and system integration and durability.

The 33 papers in this technical paper collection provide the latest advances in emissions measurement and testing and in-use engine emissions measurement and testing.

The 9 papers in this technical paper collection discuss general topics in emissions related to fuel type, after treatment design and architecture, and combustion strategy using techniques like mathematical models, CFD, and experiments.

This technical paper collection contains 14 papers that cover DI diesel combustion, DI diesel engine performance and pollutant emissions, NOx emission reduction, performance optimization of diesel engines, and more.

The 16 papers in this technical paper collection detail low temperature combustion and in-cylinder emission strategies.

This technical paper collection contains 33 papers that focus on modeling of SI and diesel engines.

This technical paper collection includes 12 papers detailing SULEV emission requirements, three-way-catalysts, lean NOx trap systems, and more.

The 13 papers in this technical paper collection discuss variable valve actuation mechanisms, devices, and systems; and the impact and control of such systems on thermodynamics, combustion, fuel economy, emissions, and performance.

The 16 papers in this technical paper collection deal with understanding and reducing the in-cylinder formation of particulate and NOx in compression ignition engines. Ttechnologies are focused on but are not limited to: low temperature combustion, water/fuel emulsions, and EGR. Both experimental and analytical contributions are included.

Providing thermal comfort to the occupants and thermal management of components in an energy efficient way has challenged the automotive industry to search for new and innovative approaches to thermal management. Hence, management of heat flow, coolant flow, oil flow, and airflow is extremely important as it directly affects the system performance under full range of vehicle operating conditions. The 31 papers in this technical paper collection describe methods or concepts to increase efficiency, improve occupant comfort, improve test methodology and minimize the environmental impact of the climate control system; and thermal management components addressing design and/or application topics.

This technical paper collection contains 7 papers focusing on the impact of conventional alternative fuels as well as fuel additives on the operation, performance, and emissions of SI engines. Papers cover the impact bio-derived fuels (ethanol, butanol and others) have on engine design and performance. Gasoline properties, additives and their impact on engine performance and deposits is also covered.

This technical paper collection contains 9 emissions measurement and testing papers. Topics covered include: particle emissions from combustion sources; in-use engine emissions measurements and modeling; particulate measurement techniques; detailed characterization techniques; NOx measurement; testing facility development; and particle emissions from engines and fuel effects.

This technical paper collection contains 53 technical papers. Topics covered include engine exhaust aftertreatment and integration; hybrid vehicle integration and optimization; powertrain and drivetrain NVH; advanced transmission and driveline component design; diesel engine system design; fuel economy; alternative fuels; and advanced engine component design.

This technical paper collection features 15 papers covering electrification of the commercial vehicle, techniques for efficiency and reliability; developments in sensors; model based design and embedded software development; heavy duty electronic technology; autonomous vehicles; electronic control module development and test; and vehicle structure.

The 18 papers in this technical paper collection cover direct injection SI engine technology. Topics include: GDi multi-hole injector internal flow and spray analysis; European lean gasoline direct injection vehicle benchmark; measures to reduce particulate emissions of gasoline direct injection engines; high frequency ignition system for gasoline direct injection engines; and more.

The approximately 7 papers in this technical paper collection cover general emission topics. Contents include: methane production over three way catalysts in E85 fuelled vehicles; a comparative study of two kinds of biodiesels and biodiesel-DEE blends in a common rail diesel engine; comparing the secondary organic aerosol (SOA) yields from diesel vs biodiesel fuel using a photochemical ageing chamber; and more.

The 57 papers in this technical paper collection cover various aspects of system durability and system integration pertaining to diesel exhaust emissions control. Topics covered include exhaust catalysts and particulate filters, mechanisms of their performance degradation and possible mitigation strategies, data from the field tests, analysis of the aged catalysts, laboratory and accelerated on-engine aging studies, along with relevant experimental tools and methodology.

The 19 papers in this technical paper collection review emission measurement and testing. Topics covered include: exhaust particle sensor for OBD application; particle size and number emissions from modern light-duty diesel vehicles; effect of EGR on particle emissions from a GDI engine; smart sensing and decoupling of NOx and NH3 components; effect of engine operating conditions on spark-ignition engine PAH emissions; and more.

The 15 papers in this technical paper collection focus on combustion control. Topics covered include: knock detection and estimation based on heat release strategies; development of low pressure loop EGR system for diesel engines; real-time combustion phase optimization of a PFI gasoline engine; optimal feedback control with in-cylinder pressure sensor under engine start conditions; and more.