Performance optimization of hybrid hydrogen fuel cell-electric vehicles in real driving cycles

Changizian, Sina; Ahmadi, Pouria; Raeesi, Mehrdad; Javanı, Nader

doi:10.1016/j.ijhydene.2020.01.015

Cited by 96 publications

(29 citation statements)

References 28 publications

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“…The degradation of the cells in both the NEDC and the FTP75 tests was found to lead to an increase in hydrogen consumption of about 14%. Changizian et al [31] also optimized the performance of fuel cells together with batteries and ultracapacitors in driving tests. The use of an ultracapacitor resulted in a reduction in hydrogen consumption of about 3% and a reduction of about 20% in the different starting and end positions.…”

Section: Fuel Cell Testing For Automotive Applicationsmentioning

confidence: 99%

Two Generations of Hydrogen Powertrain—An Analysis of the Operational Indicators in Real Driving Conditions (RDC)

Pielecha

Szałek²,

Tchorek

2022

Energies

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Hydrogen fuel cells are systems that can be successfully used to partially replace internal combustion propulsion systems. For this reason, the article presents an operational analysis of energy flow along with an analysis of individual energy transmission systems. Two generations of the Toyota Mirai vehicle were used for the tests. The operational analyses were carried out on the same route (compliant with RDE test requirements), assessing the system’s operation in three driving sections (urban, rural and motorway). Both generations of the drive system with fuel cells are quite different, which affects the obtained individual systems operation results as well as the overall energy flow. Research was carried out on the energy flow in the fuel cells, FC converter, battery and electric motor using a dedicated data acquisition system. The analyses were carried out in relation to the energy of fuel cells, battery energy and recovered braking energy. It was found that in the urban drive section of the second-generation system (due to its much larger mass), a slightly higher energy consumption value was obtained (by about 2%). However, in the remaining phases of the test, consumption was lower (the maximum difference was 18% in the rural phase). Total energy consumption in the research test was 19.64 kWh/100 km for the first-generation system compared to 18.53 kWh/100 km for the second-generation system. Taking into account the increased mass of the second-generation vehicle resulted in significantly greater benefits in the second-generation drive (up to 37% in individual drive sections and about 28% in the entire drive test).

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Section: Fuel Cell Testing For Automotive Applicationsmentioning

confidence: 99%

Two Generations of Hydrogen Powertrain—An Analysis of the Operational Indicators in Real Driving Conditions (RDC)

Pielecha

Szałek²,

Tchorek

2022

Energies

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“…In other words, SC SOP is appropriate to be used as a powerful tool for calculating SC limit based on voltage and SOC for a future time period. e ultimate SC current boundaries for a certain future time period Δt { in second) based on the predicted supercapacitor SOC (SOC SC ) are expressed in equations ( 5) and (6). For discharge mode, I dis−SOC SC−max by equation ( 5) and for charge mode, I chg−SOC SC−min by equation ( 6) [16].…”

Section: A Modern Simple Power Prediction Index Strategic Energy Mana...mentioning

confidence: 99%

“…e benefit of employing SC in FCHES is to moderate the current stresses of the battery [4], which leads to increased battery lifetime [5]. However, the performance of FCHES is significantly dependent on its energy management system [6], which is used for electric power distribution between fuel cell, battery, and SC [7].…”

Section: Introductionmentioning

confidence: 99%

A Modern Simple Power Prediction Index for Improving Battery Life

Dahmardeh

Rahimirad

Masih‐Tehrani

2022

International Transactions on Electrical Energy Systems

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Prediction of available energy storage power is essential for increasing the energy management performance of fuel cell hybrid electric systems (FCHES). A simple yet effective power prediction index is proposed to estimate the supercapacitor state of power. It prevents the supercapacitor’s total depletion in the battery/supercapacitor combination. Modern energy management is equipped with an equivalent consumption minimization strategy. The power prediction index is simple compared with other predictive algorithms while providing excellent efficiency compared with supercapacitor-based management strategies. A supercapacitor-based strategy is presented which extends battery life, at the cost of increased fuel consumption. However, it cannot predict the future low state of charge for the supercapacitor. In such conditions, the battery provides the demand power while fuel cells generate more current. On the other hand, the modern power prediction index energy management strategy significantly increases battery life without adding extra hardware. Moreover, fuel consumption decreased by 15.1 percent. The results show that the modern energy management strategy provides outstanding performance for battery life and fuel consumption compared with other energy management strategies due to its power limitation prediction.

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“…Nowadays, hybrid vehicles contribute significantly to the reduction of emissions, especially in urban areas. The use of hybrid vehicle technologies has recently accelerated not only for passenger cars but also for heavy vehicles [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A New Assessment Parameter to Determine the Efficiency of a Hybrid Vehicle

Mahmoud

Ghania

2022

Eng. Technol. Appl. Sci. Res.

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This paper presents a new evaluation technique for determining the hybridization efficiency of a vehicle. First, the saving in fuel consumption is estimated in the ideal case considering the vehicle runs through a standard driving cycle and the engine runs at the lowest specific fuel consumption all the time. Subsequently, the hybridization efficiency can be defined as the ratio between the fuel savings in hybrid mode to the ideal savings according to the standard driving cycle. A case study was conducted with a medium-size passenger car according to the new European standard driving cycle. The results showed that the new proposed evaluation criterion is very effective for evaluating hybrid vehicles.

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Performance optimization of hybrid hydrogen fuel cell-electric vehicles in real driving cycles

Cited by 96 publications

References 28 publications

Two Generations of Hydrogen Powertrain—An Analysis of the Operational Indicators in Real Driving Conditions (RDC)

Two Generations of Hydrogen Powertrain—An Analysis of the Operational Indicators in Real Driving Conditions (RDC)

A Modern Simple Power Prediction Index for Improving Battery Life

A New Assessment Parameter to Determine the Efficiency of a Hybrid Vehicle

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