Conference: 한국자동차공학회 춘계학술대회
Authors: 김동민, 김재현, 박현진, 홍정표, 임명섭, 최규성, 양현섭, 조경석
DOI:
Recently, the fuel cell electric vehicle (FCEV) is getting attention because of not only environmental friendly aspects but also fine dust reduction policy. Commercialization of FCEV has begun, and now the FCEV development is confronted with the goal of improving the energy efficiency of the vehicle system which can extend the driving range. To achieve the mileage improvement, the main operating region of traction motor, battery, and fuel cell should be grasped. This paper deals with the modeling of the FCEV considering hybrid energy storage system (HESS). The traction motor was reflected as the efficiency map from the finite element analysis (FEA) considering the control strategy. For the HESS which consisted of battery and fuel cell, the second order RC equivalent circuit and Dicks-Larminie model was adopted respectively. In addition, a simplified rule-based control logic was introduced and adopted in vehicle simulation. Finally, from the vehicle simulation, the output power pattern of the fuel cell was estimated.