Hybrid electric vehicle hydrogen consumption and load change energy management method
A hybrid electric vehicle, load change technology, applied in the field of automation, can solve the problems of complex design process, inappropriate optimization, and inability to operate in real time, and achieve the effect of improving operating efficiency
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[0063] The efficiency of the proposed algorithm is tested using the US EPA Highway Fuel Economy Certification Test, New European Driving Cycle and EPA Urban Dynamometer Driving Time as examples. A Volkswagen Jetta.
[0064] Step 1. Design fuel cell vehicle related models. The specific method is:
[0065] 1.1 Establish fuel cell model
[0066] V out =N 0 E. cell -V act -V ohm
[0067] V act =Bln(CI),V ohm =IR ohm
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[0069]
[0070] In the formula, N 0 is the number of fuel cells connected in series, B and C are constants for calculating the activated voltage, R ohm is the internal resistance of the fuel cell, V ohm is the ohmic voltage inside the fuel cell, and I is the fuel cell current. P H2 and P O2 are the partial pressures of hydrogen and oxygen, respectively. T is the temperature of the fuel cell stack and R is the gas constant. lambda e and τ e are constant constants. E. cell Indicates the Nernst battery voltage, V act Indicates the ...
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