Evaluation model of hydrogen fuel cell hybrid power system for a commercial vehicle
SUN Wen
WANG Xia
CHEN Jianwei
BAI Shuzhan
LI Guoxiang
Abstract：Through theoretical modeling,simulation analysis,and experimental verification,the power performance and economic performance of fuel cell hybrid commercial vehicles are evaluated.Starting from the dynamics of the entire vehicle,the dynamic relationship between driving force,resistance,and vehicle motion state is analyzed,and the characteristics of fuel cells,power batteries,and motors are combined to establish accurate longitudinal dynamics models of the entire vehicle and multi-level models of the powertrain.A rule-based energy management strategies are designed to achieve dynamic power allocation between fuel cells and power cells.The comparison between the simulation results of actual road spectrum conditions and experimental data shows that the relative errors of the model in terms of vehicle speed,motor power,fuel cell power,power battery power,etc.are less than 5%.The model has high accuracy and effective energy management strategies.The research results can provide reference for the performance optimization and energy management strategy development of fuel cell hybrid commercial vehicles.In the future,we will further explore data-driven power system strategies to enhance the system's adaptability to complex operating conditions.
Keywords：commercial vehiclehydrogen fuel cell hybrid power systemsimulation modelenergy management strategypower
Publication Date：2025-07-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 69-74,80 )