Modeling, Simulation and Control Strategy Optimization of Fuel Cell Hybrid Electric Vehicle

Abstract

This work represents the development of a Fuel Cell Hybrid Electric Vehicle (FCHEV) model, its validation, and the comparison of different control strategies based on the Toyota Mirai (1st generation) vehicle and its subsystems. The main investigated parameters are hydrogen consumption, and the variation of the state of charge, current, and voltage of the battery. The FCHEV model, which is made up of multiple subsystems, is developed and simulated in MATLAB® Simulink environment using a rule-based control strategy derived from the real system. The results of the model were validated using the experimental data obtained from the open-source Argonne National Laboratory (ANL) database. In the second part, the equivalent consumption minimization strategy is implemented into the controller logic to optimize the existing control strategy and investigate the difference in hydrogen consumption. It was found that the ECMS control strategy outperforms the rule-based one in all drive cycles by 0.4–15.6%. On the other hand, when compared to the real controller, ECMS performs worse for certain considered driving cycles and outperforms others.

Specific features of improving automobile road complex of the Republic of Uzbekistan

“…In order to ensure that roads meet the requirements of modern and future road traffic, it will be necessary to further increase capital investments, including investments. Rational, scientifically substantiated spending of these investments is an important national economic task [15,[16][17][18][19][20][21][22][23][24][25][26].…”

Development of methods for calculating thermal conductivity of gas condensates-alternative motor fuels

“…where ρ1 and ρ2 are the density of the oil product at temperatures T1 and T2 The accuracy of determining β depends on the selected temperature range and the error in determining ρ1 and ρ2, which should be quite high, on the order of ±0.05-0.1% [5]. To process experimental data on the thermal conductivity of gas condensates using the method under consideration, experimental data on the density of gas condensates in Central Asia [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26], which were measured according to the author's estimate with a maximum error of ±0.1%, were used. The proposed empirical equations for calculating λ of heavy petroleum products, obtained on the basis of the correlation between thermal conductivity and complexes and in the temperature range −20...150°С, give an error of no more than 8%.…”

Mild Hybrid Powertrain for Mitigating Loss of Volumetric Efficiency and Improving Fuel Economy of Gasoline Vehicles Converted to Hydrogen Fueling

“…A clear example of these restrictions is the European Union (EU), which aims to achieve zero GHG emissions by 2050 through the Green Deal program with an emphasis on transportation [1,2]. Among the alternatives, synthetic liquid fuels and electric vehicles are recognized [3], and more recently, H2 propulsion has stood out [4], either through fuel cells for electric power generation or through direct hydrogen combustion. For this reason, it is crucial to conduct studies comparing different propulsion systems for various types of vehicles and their respective uses.…”