Leveraging the benefits of ethanol-fueled advanced combustion and supervisory control optimization in hybrid biofuel-electric vehicles

Zhang, Hao; Liu, Shang; Lei, Nuo; Fan, Qinhao; Wang, Zhi

doi:10.1016/j.apenergy.2022.120033

Cited by 17 publications

(7 citation statements)

References 44 publications

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“…By combining both cycles, the WTW emissions were 614.2 gC O 2 eq / km for E27 operation, being 98.6% of this emission from gasoline burn, against 44.7 gC O 2 eq / km from hydrous ethanol, resulting in a reduction of almost 93%. Zhang et al 12 pointed out a reduction in the WTW emissions of 67%–78% in comparison to gasoline by combining the renewability with advanced combustion techniques emphasizing the variability in WTW. This study concentrated on fuels available in Brazil and the processes of fuel production may differ from other countries, considering a higher or lower degree of renewability on the WTT evaluation.…”

Section: Resultsmentioning

confidence: 99%

“…By combining both cycles, the WTW emissions were 614.2 gCO 2 eq=km for E27 operation, being 98.6% of this emission from gasoline burn, against 44.7 gCO 2 eq=km from hydrous ethanol, resulting in a reduction of almost 93%. Zhang et al 12 pointed out a reduction in the WTW emissions of 67%-78% in comparison to gasoline by combining the renewability with advanced…”

Section: Emissionsmentioning

confidence: 99%

“…Recently, some studies have explored the use of ethanol in HEV, including novel combustion modes with this fuel. Zhang et al 12 pointed out the benefits of using ethanol in PHEV's with advanced combustion modes, mainly in terms of well-to-wheel carbon emissions, with up to 75% reduction compared to the gasoline PHEV. The series configuration broadens the possibilities for obtaining higher efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…11 The HEV’s actually come as complementary technology to biofuels, as they can operate with ethanol-gasoline blends or even dedicated for exclusive ethanol operation. 7,12 Therefore, a PHEV equipped with a RE dedicated for ethanol use would have a remarkable potential for GHG emissions reduction by combining renewable fuel with the superior efficiency of an electrified powertrain. However, the biofuel combustion still produces tailpipe emissions and the development of a RE must account for abatement technologies.…”

Section: Introductionmentioning

confidence: 99%

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Electrically heated catalyst enabling pollutants reduction in hybrid vehicles fueled with ethanol

Falcão Weissinger,

Henrique Rufino,

Mendoza

et al. 2023

International Journal of Engine Research

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Plug-in hybrid electric vehicles (PHEV) have the potential of combining the benefits of a renewable electric mix with biofuels. More recently, PHEV have been designed to be equipped with a small combustion engine known as range extender (RE), thus allowing an improvement in vehicle’s range while converting fuel energy through a highly efficient path. Despite being a convenient strategy for decarbonizing light vehicles, the intermittent operation of the engine may create issues regarding the catalytic conversion of pollutants, yielding an increase in local harmful emissions. This drawback may be intensified depending on the used fuel. Hydrous ethanol is a promising alternative for gasoline and is already available in some countries, such as Brazil. However, ethanol has a great enthalpy of vaporization and it results in a charge cooling, affecting the catalyst warm-up and making the intermittent operation with ethanol more challenging. Hence, this study was motivated by the need of improving the catalytic efficiency of flexfuel RE operating with both gasoline and hydrous ethanol. Thus, a calibration was firstly performed to shorten the warm-up phase with ethanol. Then, an electrical heater was employed for accelerated catalyst heating, further improving emissions from ethanol operation, aiming at attaining future emissions regulations. Experimental tests were conducted in a vehicle under FTP72 cycle using a chassis dynamometer. The calibration adjustments resulted in a warm-up phase for ethanol <10 s longer than that for gasoline. The stable operation phase resulted in similar emissions for both fuels. On the cycle average, a reduction in CO for ethanol was observed, and although the methane and NOx emissions were slightly increased due to colder catalyst operation, significant improvements were obtained on a well-to-wheel (WTW) analysis. The use of an electrically heated catalyst (EHC) improved the emissions during the warm-up phase, significantly reducing the emission of NOx and non-methane organic compounds.

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Section: Resultsmentioning

confidence: 99%

Section: Emissionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Electrically heated catalyst enabling pollutants reduction in hybrid vehicles fueled with ethanol

Falcão Weissinger,

Henrique Rufino,

Mendoza

et al. 2023

International Journal of Engine Research

View full text Add to dashboard Cite

show abstract

“…The hybrid powertrain confiscates such barriers by operating or assisting the vehicle with an electric motor source. 4 Though the existence of additional control freedom benefits toward satisfying the driver demand but it requires a superior control strategy to handle the complex energy distribution of the hybrid powertrain system. Thus, the study of energy management topology plays a vital role in enhancing fuel efficiency and reducing the emission characteristics of multiple energy sources by optimally distributing the demanded power of the whole hybrid electric vehicles (HEVs).…”

Section: Introductionmentioning

confidence: 99%

Improvised energy management control through neuro-fuzzy based adaptive ECMS approach for an optimal battery utilization in non-plugin parallel hybrid electric vehicle

Rajasekar,

Ashok

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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This work proposed to integrate intelligent techniques in an adaptive equivalent consumption minimization strategy (AECMS) for a robust equivalence factor correction based on the demand torque and battery state of charge (SOC). The two intelligent approaches of fuzzy logic and genetic algorithmically optimized adaptive neuro-fuzzy inference system (ANFIS) have been employed. The entire performance is validated using the prepared three hybrid standard driving cycles and also for training the fuzzy inference system (FIS). The proposed ANFIS-ECMS delivers a narrow battery charging and discharging profile within the optimal battery utilization zone. Also, it delivers the higher fuel economy for the three driving cycles in the D1 4.20%, D2 1.175%, and D3 0.90% improvisation is occurred compared to fuzzy-PI AECMS. Even in the reliability assessment of ANFIS-AECMS, the performance has been tested on the self-developed real-world driving cycle. The fuel economy increases by 1.26% and 0.80% are compared to rule-based and fuzzy-PI AECMS. The entire results of this work evidence that the proposed strategy achieves significant improvement in battery and fuel energy utilization and also the reduction in emissions compared with rule-based, conventional fixed PI ECMS and fuzzy-PI based ECMS.

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Coupled velocity and energy management optimization of connected hybrid electric vehicles for maximum collective efficiency

Zhang,

Chen,

Lei

et al. 2024

Applied Energy

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Leveraging the benefits of ethanol-fueled advanced combustion and supervisory control optimization in hybrid biofuel-electric vehicles

Cited by 17 publications

References 44 publications

Electrically heated catalyst enabling pollutants reduction in hybrid vehicles fueled with ethanol

Electrically heated catalyst enabling pollutants reduction in hybrid vehicles fueled with ethanol

Improvised energy management control through neuro-fuzzy based adaptive ECMS approach for an optimal battery utilization in non-plugin parallel hybrid electric vehicle

Coupled velocity and energy management optimization of connected hybrid electric vehicles for maximum collective efficiency

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