Investigation on Energy Flow Characteristics of Fuel Cell System Based on Real Vehicle Tests

Zhijie Duan, Chen Li, Lili Feng, Shuguang Yu, Zengyou Jiang, Xiaoming Xu, Jichao Hong, Dongfang Chen
2021 Energies  
For fuel cell hybrid vehicles, the energy distribution mechanism of the fuel cell and power battery should reasonably allocate the power output of the fuel cell and power battery, optimize the efficiency of both and control the power battery SOC to fluctuate within a reasonable range. To test the energy flow and operation characteristics of the powertrain of two hybrid car models on the market, two test vehicles (called vehicle A and vehicle B in this paper) are tested on an AIP 4WD chassis
more » ... mometer under constant power and the China Light-Duty Vehicle Test Cycle-Passenger cycle condition, respectively. The test results show that vehicle A has a smaller power battery SOC variation interval and a lower variable rate than vehicle B. The cumulative power battery output energy of vehicle B is more significant than that of vehicle A. More importantly, the current rare public test reports of fuel cell vehicles make this study very valuable. This paper has important reference significance for the energy flow characteristics and energy management strategy of existing fuel cell hybrid vehicles.
doi:10.3390/en14238172 fatcat:3dv2gligqjczpa2u5hy7ugbmv4