Energy Assessment of a Plug-in Hybrid Vehicle Propulsion Management System

Campino, Miguel; Henriques, Nuno Paulo Ferreira; Duarte, Gonçalo

doi:10.18502/keg.v5i6.7103

Cited by 2 publications

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Exhaust Emissions from Plug-in and HEV Vehicles in Type-Approval Tests and Real Driving Cycles

et al. 2022

View full text Add to dashboard Cite

The amount of hybrid vehicles and their contribution have increased in the global market. They are a promising aspect for a decrease in emissions. Different tests are used to determine the factors of such emissions. The goal of the present study was to compare the emissions of two hybrid vehicles of the same manufacturer: the plug-in version and the HEV version (gasoline + electric engine). These vehicles were chosen because they comprise the largest market share of hybrid cars in Poland. The exhaust emission tests were conducted in the WLTC tests on a chassis dynamometer and under real traffic conditions. Simultaneous testing on a dyno and under real driving is the most adequate test to assess the environmental aspects of vehicles—especially hybrids. The combustion engines of the tested vehicles were supplied with gasoline containing 5% biocomponents. The emissions, including CO2, CO, NOx, THC and PNs, were measured in accordance with the European Union procedure. According to the latter, the resistance to motion of the chassis dyno was adjusted to the road load, allowing the hybrid vehicles to move in electric mode and allowing the dynamometer to operate in energy recovery mode. The obtained emissions of CO2, CO, NOx and THC in the case of the plug-in hybrid vehicle were lower by 3%, 2%, 25%, and 13%, respectively, compared to the case of HEV. Fuel consumption in the case of the plug-in hybrid vehicle was lower by 3%, and PN was lower by 10% compared to the case of HEV (WLTC). In real driving conditions, the differences were more pronounced in favour of the plug-in vehicle: CO2 emissions in the RDE test were 30% lower, NOx emissions were 50% lower, and PN was 10% lower. An increase in emissions was only observed for CO2 emissions—the plug-in vehicle’s on-road emissions were 6% higher compared to the HEV. The obtained emissions for FC and PN varied with actual velocity values due to competitive driving between a combustion engine and an electric motor, as well as existing acceleration and deceleration events during the test and other factors.

show abstract

Exhaust Emissions from Plug-in and HEV Vehicles in Type-Approval Tests and Real Driving Cycles

et al. 2022

View full text Add to dashboard Cite

show abstract

Disaggregation of PHEV Energy use Under Different Energy Management Strategies

Campino¹,

Sousa²,

Duarte³

2023

SAE Technical Paper Series

View full text Add to dashboard Cite

<div class="section abstract"><div class="htmlview paragraph">Plug-in hybrid vehicles have complex energy management and are very influenced by charging behavior. Since current on-road data analysis methodologies do not take into consideration propulsion management, it is difficult to correctly estimate their energy and emissions impacts. This paper presents a methodology (ABCD Method) based only on dynamic data to assess the battery state of charge, identifying, second by second, which propulsion source is working and estimating the correspondent energy consumption, pollutant gas emissions and utility factor. Using a Portable Emission Measurement System, this methodology was developed based on real driving data obtained on four trips in two different PHEV. Excellent correlations were obtained between the estimated and measured SOC (R2>0.98). The ABCD Method uses a generic algorithm to allocate points of different propulsion combinations, correctly identifying the energy source used in over 81.9% of trip points. The ABCD method and Vehicle Specific Power (VSP) method were compared with the measurement data from the four trips, indicating that the ABDC method presents in all situations better estimates, except for HC emission, standing out in the estimate of the electric energy use (9.8% ± 6.5% vs 42.1% ± 20.8%, compared with VSP) and utility factor (5.0% ± 3.4% vs 24.7% ± 1.7%). The ABCD method is of major importance for improving the VSP methodology and the current RDE driving data analysis tools used by the European Commission since this method allows knowing which propulsion system is used at each instant.</div></div>

show abstract

Energy Assessment of a Plug-in Hybrid Vehicle Propulsion Management System

Cited by 2 publications

References 3 publications

Exhaust Emissions from Plug-in and HEV Vehicles in Type-Approval Tests and Real Driving Cycles

Exhaust Emissions from Plug-in and HEV Vehicles in Type-Approval Tests and Real Driving Cycles

Disaggregation of PHEV Energy use Under Different Energy Management Strategies

Contact Info

Product

Resources

About