Potentials of Phlegmatization in Diesel Hybrid Electric Vehicles

Auerbach, Michael; Ruf, Markus; Bargende, Michael; Reuss, Hans-Christian; Doorn, Rene Van; Wilhelm, Friedrich; Kutschera, Immanuel

doi:10.4271/2011-37-0018

Cited by 6 publications

(2 citation statements)

References 1 publication

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“…Thus, developing innovative control strategies is important to avoid to significant emissions penalties while retaining as much of the fuel efficiency benefit as possible. 44,[47][48][49][50][51] Some innovative control strategies have been reported in recent publications, 50,51 which consider the tradeoff between fuel consumption saving potential and emissions reduction. As a result of this tradeoff, both fuel consumption and emissions cannot be optimized at the same time.…”

Section: Additional Observations About Fuel Economymentioning

confidence: 99%

Simulating the impact of premixed charge compression ignition on light-duty diesel fuel economy and emissions of particulates and NO_x

Gao

Daw

Wagner

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part D:

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We report results from urban drive cycle simulations of a light-duty conventional vehicle and a similar hybrid electric vehicle, both of which are equipped with diesel engines capable of operating in either conventional diesel combustion mode or in premixed charge compression ignition mode. Both simulated vehicles include lean exhaust after-treatment trains for controlling hydrocarbon, carbon monoxide, nitrogen oxide, and particulate matter emissions. Our results indicate that, in the simulated conventional vehicle, premixed charge compression ignition can significantly reduce fuel consumption and emissions by reducing the need for lean nitrogen oxide traps and diesel particulate filter regeneration. However, the opportunity for utilizing premixed charge compression ignition in the simulated hybrid electric vehicle is limited because the engine typically experiences higher loads and multiple stop–start transients that are outside the allowable premixed charge compression ignition operating range. This suggests that developing ways of extending the premixed charge compression ignition operating range combined with improved control strategies for engine and emissions control management will be especially important for realizing the potential benefits of premixed charge compression ignition in hybrid electric vehicles.

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Section: Additional Observations About Fuel Economymentioning

confidence: 99%

Simulating the impact of premixed charge compression ignition on light-duty diesel fuel economy and emissions of particulates and NO_x

Gao

Daw

Wagner

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part D:

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show abstract

“…The optimization approach was performed by testing several hardware and vehicle control parameters [50]. A design of experiments (DoE) with 1500 cases for each hybrid platform and a Latin hypercube sampling (LHS) was used [51].…”

Section: Oem No-hybrid and No-plug In Hybrids Dual-fuel Optimizationmentioning

confidence: 99%

Emissions reduction from passenger cars with RCCI plug-in hybrid electric vehicle technology

Benajes

García

Monsalve‐Serrano

et al. 2020

Applied Thermal Engineering

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Hybrid Electric Vehicles (HEVs) can be considered as a potential technology to promote the change from conventional mobility to e-mobility. However, the real benefits in terms of CO2 emissions depend on a great extent on their mode of use, vehicle design and electricity source. On the other hand, in the last few years, advanced combustion modes as Reactivity Controlled Compression Ignition (RCCI) showed great advantages in terms of NOx and soot emissions reduction. This paper has the purpose of assessing, through numerical simulations fed with experimental results, the potential of different hybrid vehicles when used together with a low temperature combustion mode. In particular, the dual-fuel Mild (MHEV), Full (FHEV) and Plug-in (PHEV) hybrid electric vehicles are tested and compared to the original equipment manufacturer (OEM) and the conventional dual-fuel powertrain, both no-Hybrid vehicles. The powertrains are optimized to meet the current European homologation legislation Worldwide Harmonized Light Vehicle Test Procedure (WLTP). After that, a deep analysis is performed in terms of performance and emissions. Lastly, a life-cycle analysis (LCA) is performed to evaluate the real potential of the different technologies. The results show that the PHEV has the highest benefits in terms of fuel consumption and engine-out emissions. With this technology, it is possible to achieve the 50 g/km CO2 target for the PHEVs with a medium battery size (15 kWh), while NOx and soot levels are under the Euro 6 limits. In addition, the RCCI technology shows great benefits to achieve the Euro 6 soot level for the other hybrid platforms. The LCA shows that the PHEVs can achieve 12% reduction of the total CO2 with respect to the FHEVs, and 30% with respect to the no-hybrid diesel platform.

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Drivability enhancement and transient emission reduction for a mild hybrid diesel-electric truck

Galvagno

Velardocchia

Vigliani

2013

IJPT

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This paper deals with modelling and control methodologies applied to a heavy truck equipped with a parallel hybrid electric drivetrain. The actuator redundancy, typical of the mildhybrid vehicle configuration, allows the powertrain control system to enhance the vehicle drivability, in terms of smooth driving and promptness, while reducing transient diesel engine emissions, in comparison with conventional pure thermal engine vehicles. The electric motor, characterised by a high-bandwidth torque control, is here utilised not only to dampen the driveline oscillations that arise during rapid torque transients, e.g. when the driver accelerates the vehicle at full throttle in low gears, but also to keep the engine working with slow torque gradients, as required by transient emission reduction strategies. The driveline is modelled by lumped parameters, considering also the damping effects of the tyres. A detailed nonlinear model is used as reference for the performance comparison of different simplified linear models. The best linear model is selected and used for the design of a LQR-based closedloop controller aiming at reducing the driveline torsional vibrations. The regulation task (active vibration damping) is separated from the distribution task (torque splitting between the two motors).

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Potentials of Phlegmatization in Diesel Hybrid Electric Vehicles

Cited by 6 publications

References 1 publication

Simulating the impact of premixed charge compression ignition on light-duty diesel fuel economy and emissions of particulates and NO_x

Simulating the impact of premixed charge compression ignition on light-duty diesel fuel economy and emissions of particulates and NO_x

Emissions reduction from passenger cars with RCCI plug-in hybrid electric vehicle technology

Drivability enhancement and transient emission reduction for a mild hybrid diesel-electric truck

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Potentials of Phlegmatization in Diesel Hybrid Electric Vehicles

Cited by 6 publications

References 1 publication

Simulating the impact of premixed charge compression ignition on light-duty diesel fuel economy and emissions of particulates and NOx

Simulating the impact of premixed charge compression ignition on light-duty diesel fuel economy and emissions of particulates and NOx

Emissions reduction from passenger cars with RCCI plug-in hybrid electric vehicle technology

Drivability enhancement and transient emission reduction for a mild hybrid diesel-electric truck

Contact Info

Product

Resources

About

Simulating the impact of premixed charge compression ignition on light-duty diesel fuel economy and emissions of particulates and NO_x

Simulating the impact of premixed charge compression ignition on light-duty diesel fuel economy and emissions of particulates and NO_x