Hamed Davardoust - School of Automotive Engineering, Iran University of Science and Technology,
Golamreza Molaeimanesh - School of Automotive Engineering, Iran University of Science and Technology,
Sepehr Mousavi - School of Automotive Engineering, Iran University of Science and Technology,

Due to the increasing level of air pollution and the reduction of fossil fuels, the need for new technologies and alternative fuels is felt more than ever. Proton exchange membrane fuel cells (PEMFCs) are one of these technologies, which have been of great interest to the researchers due to the benefits of non-contamination, high efficiency, fast start-up, and high power density. The proper functioning of the fuel cell requires thermal management and water management within the cells. To this end, in this work, the effect of different parameters on the performance of PEM fuel cell was investigated. The results demonstrated that the performance of the cell increases with increasing the pressure in the low current densities, while in the high current density, performance decreases with increasing the pressure of the cell. Also, the study of the effect of relative humidity shows that increasing the relative humidity of the cathode does not have much effect on the performance of the cell while increasing the relative humidity of the anode improves the performance of the cell.

robust control, sliding mode control, fractional order PI, Chattering, vehicle suspension system, PSO algorithm