著者

吉川 大雄 菱沼 孝夫 近久 武美 早坂 厚

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. B編 = Transactions of the Japan Society of Mechanical Engineers. B (ISSN:03875016)

巻号頁・発行日

vol.68, no.665, pp.218-223, 2002-01-25

参考文献数

12

被引用文献数

2

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The objective of this study was to estimate the optimization of fuel cell electric vehicle systems by the driving simulation that we developed. The results of the driving simulation showed the power of fuel cell, battery and motor for a 1 500 cc class sedan is 12, 18 and 15 kW at the condition of 10-15 mode of the minimum fuel consumption. The fuel consumption of the series driving system of FCEV was more than the parallel because of the heavier vehicle weight of the series compared to the parallel. The numerical analysis showed that the FCEV performance is affected by the regenerative brake and the fuel consumption of the FCEV with the regenerative brake systems is 23% less than without them.

著者

吉川 大雄 菱沼 孝夫 近久 武美

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. B編 (ISSN:03875016)

巻号頁・発行日

vol.66, no.652, pp.3218-3225, 2000-12-25

被引用文献数

17

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The humidification system in a PEFC is handicapped by the water management under a range of temperatures including low temperatures in winter, so the performance with and without humidification was considered and simulated for a variety of fuel cell temperatures. The characteristice of a single cell with a cell area of 104 cm^2 was identified by experiments and a one dimensional model was developed to evaluate cell performance. The experiments found that water managements are important because the ionic conductivity of the membrane and catalyst layers decreases when there is little humidity. Results of start-up tests with the cell showed that the fuel cell recover the performance quickly in temperature as low as 10℃. The one dimensional simulation model showed that the measured cell performance agrees with the modeling results for various humidity conditions of the cell. If low reaction temperatures and low current densities are selected as operating conditions, it would be possible to apply the dry system at the start-up.