Abstract
Under the severe challenge of increasingly stringent emission regulations and constantly improving fuel economy requirements, hybrid electric vehicles (HEVs) have attracted widespread attention in the auto industry as a practicable technical route of green vehicles. To address the considerations on energy consumption and emission performance simultaneously, a novel control algorithm design is proposed for the energy management system (EMS) of HEVs. First, energy consumption of the investigated P3 HEV powertrain is determined based on bench test data. Second, crucial performance indicators of NOx and particle emissions, prior to a catalytic converter, are also measured and processed as a prerequisite. A comprehensive objective function is established on the grounds of the Equivalent Consumption Minimization Strategy (ECMS) and corresponding simulation models are constructed in MATLAB/SIMULINK. Subsequently, the control algorithm is validated against the simulation results predicated on the Worldwide-Harmonized Light-Vehicle Test Procedure (WLTP).Integrated research contents include: (1) The searching process aimed at the optimal solution of the pre-established multi-parameter objective function is thoroughly investigated; (2) the impacts of weighting coefficients pertaining to two exhaust pollutants upon the specific configurations of the proposed control algorithm are discussed in detail; and (3) the comparison analysis of the simulation results obtained from ECMS and classical Dynamic Programming (DP), respectively, is performed.
Highlights
Human beings have used fossil fuels in large quantities since the first Industrial Revolution.The discovery and exploitation of petroleum has significantly promoted the development of internal combustion engines and fuel vehicles [1,2,3]
The previously model should tested against theusage actual urban the emissions and fuel consumption of the vehicles are underestimated
Cycle and the aforementioned Worldwide-Harmonized Light-Vehicle Test Procedure (WLTP) should be selected before further comparison
Summary
Human beings have used fossil fuels in large quantities since the first Industrial Revolution.The discovery and exploitation of petroleum has significantly promoted the development of internal combustion engines and fuel vehicles [1,2,3]. Pressured by increasingly stringent emission regulations and constantly improving fuel economy requirements, green vehicles including hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), battery electric vehicles (BEVs), and fuel cell electric vehicles (FCEVs) have attracted attention from the entire automobile industry [6,7]. Considering these different technical routes, the so-called range anxiety problem and the perceived inconvenience of charging vehicles set barriers to the widespread. Consisting of an engine, most of the time a motor and a battery, HEVs combine the advantages of conventional fuel-powered vehicles and pure electric vehicles, which makes HEVs a practicable technical scheme and gives rise to its prosperity in the field of both academic research and industrial application [11,12]
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