Criteria

Text:
Display:

Results

Viewing 1 to 30 of 6537
2017-04-04
Event
This session focuses on technologies such as advanced and partially mixed combustion, cooled EGR boosting, ignition and direct injection technologies, pressure boosting, intelligent combustion, thermal efficiency, fully variable valvetrains, and other new and developing technologies. Papers focused on waste heat recovery technologies should be submitted to HX102/103.
2017-04-04
Event
Separate sub-sessions cover powertrain control, calibration, and system-level optimization processes related to achieving stringent market fuel economy, emissions, performance, reliability, and quality demands. Topics include the control, calibration, and diagnostics of the engine, powertrain, and subsystems related to energy management in conventional and hybrid operation, considering the simultaneous optimization of hardware design parameters and control software calibration parameters.
2017-04-04
Event
Papers are invited on technology developments and the integration of these technologies into new emission control systems. Topics include the integration of various diesel particulate matter (PM) and diesel Nitrogen Oxide (NOx) reduction technologies plus analogous technologies for the growing population of direct injection gasoline engines. Novel developments in sensors and control systems will also be considered.
2017-04-04
Event
Papers on the following exhaust emissions control topics will be considered: System integration and durability, advances in catalyst substrates, advances in particulate filter substrates, advances in NOx reduction technology, and on-board measurement and control.
2017-04-04
Event
Papers cover exhaust aftertreatment system models, as well as their validation and application. Technologies encompassed include DOC, HC Trap, DPF, GPF, LNT, TWC, SCR, SCRF, ammonia oxidation catalysts, hybrid or combined catalysts, urea-water solution spray dynamics, and mixture non-uniformity. Modeling aspects range from fundamental, 3D models of individual components to system level simulation, optimization, variation, degradation, and control.
2016-11-17
Event
Papers in this session pertain to studies of exhaust emission control and the emission effects from fuels, engine controls, engine design, combuston quality, catalytic converters, diesel particulate filters, and other aftertreatment. The focus of the session is on reducing emissions and meeting international emission standards.
2016-11-16
Event
Papers in this session pertain to studies of exhaust emission control and the emission effects from fuels, engine controls, engine design, combuston quality, catalytic converters, diesel particulate filters, and other aftertreatment. The focus of the session is on reducing emissions and meeting international emission standards.
2016-11-16
Event
Papers in this session pertain to studies of exhaust emission control and the emission effects from fuels, engine controls, engine design, combuston quality, catalytic converters, diesel particulate filters, and other aftertreatment. The focus of the session is on reducing emissions and meeting international emission standards.
2016-11-16
Event
Papers in this session pertain to studies of exhaust emission control and the emission effects from fuels, engine controls, engine design, combuston quality, catalytic converters, diesel particulate filters, and other aftertreatment. The focus of the session is on reducing emissions and meeting international emission standards.
2016-11-16 ...
  • November 16-18, 2016 (8:30 a.m. - 4:30 p.m.) - Tysons, Virginia
Training / Education Classroom Seminars
On-board diagnosis of engine and transmission systems has been mandated by government regulation for light and medium vehicles since the 1996 model year. The regulations specify many of the detailed features that on-board diagnostics must exhibit. In addition, the penalties for not meeting the requirements or providing in-field remedies can be very expensive. This course is designed to provide a fundamental understanding of how and why OBD systems function and the technical features that a diagnostic should have in order to ensure compliant and successful implementation.
2016-11-08
Technical Paper
2016-32-0065
Yoshinori Nakao, Yota Sakurai, Atsushi Hisano, Masahito Saitou, Masahide Kazari, Takahito Murase, Kozo Suzuki
Euro5 is a new regulation on exhaust gases from motorcycles and will be implemented in 2020. Total Hydrocarbon (THC) is among the regulated exhaust gases. This paper is focused on the emission behavior of THC. In the transient state at engine start, port injection from the upstream makes it difficult to control the amount of cylinder fuel supply for each cycle. This is one of the main reasons for THC emission. In this study, changing the fuel injection specifications could lead to THC emission reduction. The THC emission behavior was investigated. A change in the position of injection from upstream to downstream could determine the amount of the cylinder fuel supply at the engine start. This change could eliminate misfire, thereby reducing THC emission. However, the diameters of the sprayed particles that flow directly into the cylinders are large. Hence, only changing the injection position to downstream could have a negative effect at engine start.
2016-11-08
Technical Paper
2016-32-0072
Fino Scholl, Paul Gerisch, Denis Neher, Maurice Kettner, Thorsten Langhorst, Thomas Koch, Markus Klaissle
One promising alternative for meeting stringent NOx limits while attaining high engine efficiency in lean-burn operation are NOx storage catalysts (NSC), an established technology in passenger car aftertreatment systems. For this reason, a NSC system for a stationary single-cylinder CHP gas engine with a rated electric power of 5.5 kW comprising series automotive parts was developed. Main aim of the work presented in this paper was maximising NOx conversion performance and determining the overall potential of NSC aftertreatment with regard to min-NOx operation. The experiments showed that both NOx storage and reduction are highly sensitive to exhaust gas temperature and purge time. While NOx adsorption rate peaks at a NSC inlet temperature of around 290 °C, higher temperatures are beneficial for a fast desorption during the regeneration phase. Combining a relatively large catalyst (1.9 l) with a small exhaust gas mass flow leads to a low space velocity inside the NSC.
2016-11-08
Technical Paper
2016-32-0076
Rahul Sharma, Srikanth setlur
The effect of ethanol blended gasoline fuels on Vehicular emissions was investigated in a spark ignited single cylinder carbureted vehicle meeting BSIII emission norms. The effect of fuel blended with 10(E10) & 20(E20) by percentage ethanol by volume; was studied on Type 1 vehicular mass emissions in World Harmonized Motorcycle Test Cycle (WMTC) as well as Indian drive cycle (IDC). These cycles are simulation of real driving conditions. The addition of ethanol to gasoline fuel enhances the octane number of the blended fuels and increases leaning effect. It has been observed that in IDC, addition of ethanol reduces CO up to 41%, while THC emissions decreases by 9%. Tail pipe NOx reduces up to 12%. In WMTC Cycle, the CO reduction is up to 32%, THC emission is increased by 30%. NOx emissions on WMTC cycle decrease with the use of E10 by 6% while increase with the use of E20 by 7%. The blended fuels decrease fuel economy by 6~8% on these cycles owing to their lower calorific value
2016-11-08
Technical Paper
2016-32-0070
Toyofumi Tsuda, Kazuya Miura, Akio Hikasa, Keiji Hosoi, Fumikazu Kimata
Automotive catalyst has to have good durability, i.e. has to keep sufficient catalytic performance even after thermal degradation, therefore large amounts of PGMs such as Pt, Pd, and Rh, should be loaded on the catalyst substrate. Exhaust gas heat deteriorates catalyst due to sintering of the PGM particles and decrease of the active surface area. It is important to reduce PGM load, therefore many researchers have investigated to satisfy both PGM  load reduction and enough durability by using metal / support interactions, or controlling the nano-structure of metal particles. We found that Pt ions form platinum-hydrate cluster in hexahydroxyplatinate(IV) (Pt(OH)6・H2O) nitric acid solution, and the Pt-hydrate cluster size can be controlled by Pt and nitric acid concentration, and solution temperature.
2016-11-08
Technical Paper
2016-32-0075
Srikanth setlur, Satish vemuri, C Subramoniam, Rahul Sharma
In a diverse country like India, quality of fuel varies from one region to another region. This study explores the effect of various ethanol fuel mix on a single cylinder Closed loop fuel injected SI vehicle which is EuroIII complaint. Fuels blended with 10(E10) & 20(E20) percentage of ethanol by volume; were taken up to study their effect on vehicular mass emissions in World Harmonized Motorcycle Test Cycle (WMTC).The cycle is a simulation to real world driving conditions. In WMTC Cycle, maximum CO emissions were obtained with E10 fuel which showed an increase of 13%. THC emissions decreased by 10% & NOx emissions remained the same when the ethanol percentage increases. Fuel economy decreases by 5% with use of E20 on the cycle. Further this paper investigates the various factors like AFR, CAT light off etc, which are responsible for change in tail pipe emissions.
2016-11-08
Technical Paper
2016-32-0067
Akira Miyamoto, Kenji Inaba, Yukie Ishizawa, Manami Sato, Rei Komuro, Masashi Sato, Ryo Sato, Patrick Bonnaud, Ryuji Miura, Ai Suzuki, Naoto Miyamoto, Nozomu Hatakeyama, Masanori Hariyama
On the basis of extensive experimental works about heterogeneous catalysts, the authors have tried to develop a variety of software for the design of automotive catalysts such as ultra-accelerated quantum molecular dynamics (UA-QCMD) which is 10,000,000 times faster than the conventional first principles molecular dynamics(1-3), mesoscopic modeling software for supported catalysts(POCO2), and mesoscopic sintering simulator SINTA(4,5) to calculate sintering behavior of both precious metal such as Pt, Pd, Rh and support such as Al2O3, ZrO2, CeO2, or CeO2-ZrO2 We also have integrated these softwares to develop multiscale, multiphysics simulator for the design of automotive catalysts. The method was confirmed to be effective for a variety of important catalytic reactions in the automotive emission control.
2016-11-08
Technical Paper
2016-32-0073
Sendilvelan Subramanian, Mahadevan Ganesan PhD
Control of harmful emissions during cold start of the engine has become a challenging task over the years due to the ever increasing stringent emission norms. Positioning the catalytic converter closer to the exhaust manifold is an efficient way of achieving rapid light-off temperature. On the other hand, the resulting higher thermal loading under high- load engine operation may substantially cause thermal degradation and accelerate catalyst ageing. The objective of the present work is to reduce the light-off time of the catalyst and at the same time reduce the thermal degradation and ageing of the catalyst to the minimum possible extent by adopting an approach with Telescopic Catalytic Converter System (TCCS) . The emission tests were conducted at the cold start of a 4 cylinder spark ignition engine with TCCS at different positions of the catalyst at no load conditions.
2016-11-08
Technical Paper
2016-32-0093
Denis Neher, Fino Scholl, Maurice Kettner, Danny Schwarz, Markus Klaissle, Blanca Giménez Olavarria PhD
Combustion temperature represents the driving parameter for NOx emissions. Lean burn operation allows engines to reduce combustion temperature due to relatively high heat capacity of the excess air. Lean operating cogeneration engines, however, need additionally to retard ignition timing to meet NOx emission standards. The late combustion phasing leads to a further deviation from the ideal Otto cycle, causing losses in engine efficiency. When substituting a part of the excess air with exhaust gas, heat capacity increases. Combustion phasing can be advanced, resulting in a thermodynamically more favourable heat release. As a result, engine efficiency improves without increasing NOx emissions. In this work, the effect of replacing a part of excess air with exhaust gas was investigated first in a constant volume combustion chamber. It enabled to analyse the influence of the exhaust gas under steady initial conditions for several relative air-fuel ratios (λ = 1.3…1.7).
2016-11-08
Technical Paper
2016-32-0071
Koji Ueno, Hiroyuki Horimura, Akiko Iwasa, Yuji Kurasawa, Pascaline tran, Ye Liu
Motorcycles are one of the major modes of transportation globally, and further expansion of motorcycle demand and usage is expected to continue because of population growth and individual income increase, in particular in emerging countries. At the same time, approach to critical environmental issues, such as escalation of air pollution, becomes more important challenge and this trend accelerates tightening of motorcycle emission regulation globally. In accordance with this, responding to social needs and minimizing the impact on air pollution while enhancing features of motorcycles, such as drive performance, convenience, and price attractiveness are our mission as a manufacture. Platinum group metals (PGMs) such as platinum, palladium and rhodium are commonly used for automotive and motorcycle catalysts. One of catalyst researchers’ dream is ultimately to develop catalyst without using such PGMs that are precious and costly resources.
2016-10-26
Event
Papers on the following exhaust emissions control topics will be considered: System integration and durability, advances in catalyst substrates, advances in particulate filter substrates, advances in NOx reduction technology, and on-board measurement and control.
2016-10-25
Event
Papers cover exhaust aftertreatment system models, as well as their validation and application. Technologies encompassed include DOC, HC Trap, DPF, GPF, LNT, TWC, SCR, SCRF, ammonia oxidation catalysts, hybrid or combined catalysts, urea-water solution spray dynamics, and mixture non-uniformity. Modeling aspects range from fundamental, 3D models of individual components to system level simulation, optimization, variation, degradation, and control.
2016-10-25
Event
Classical diesel engine combustion with relatively short ignition delay, including papers dealing with low CR and high EGR calibrations. Papers describing experiments and test data, simulation results focused on applications, fuel/additive effects, combustion control, and mode change are invited and will be placed in appropriate sub-sessions. Papers with an emphasis on the modeling aspects of combustion are encouraged to be submitted into FFL110 or FFL120 modeling sessions.
Viewing 1 to 30 of 6537

Filter

  • Range:
    to:
  • Year: