This research paper mainly deals with the realistic simulation of hydrogen fuel cell vehicles and the development of a lifecycle assessment (LCA) tool to calculate and compare the environmental impacts of hydrogen fuel cell passenger vehicles with conventional vehicles. Since fuel cell vehicles are equipped with regenerative braking, they have strong potential to recover an ample portion of the energy being wasted in the braking system. Thus, the driving cycle can significantly affect the performance of fuel cell vehicles. In order to investigate the effect of driving patterns, several driving patterns are considered, and both vehicle fuel economy and lifecycle emissions are calculated and compared. Fuel cell degradation, on the other hand, is another major problem fuel cell vehicles face. This is mainly caused by the starts/stops, acceleration/deceleration, membrane humidity variation and a high load of the engine. When the vehicle operates on various driving patterns, the fuel cell will degrade which eventually affects the fuel economy. The effect of fuel cell degradation is also investigated for these driving patterns, and the results are compared. The results showed that the highway driving cycle has the lowest total lifecycle emission compared to New York city driving cycle, the city of Surrey (CoS) driving cycle, and the UDDS driving cycles. The results also indicate that fuel cell degradation undesirably affected the average fuel economy of the vehicle for about 23%.

本研究报告主要涉及氢燃料电池汽车的现实模拟以及生命周期评估（LCA）工具的开发，该工具可计算和比较氢燃料电池乘用车与常规汽车对环境的影响。由于燃料电池汽车配备了再生制动，它们具有强大的潜力来回收在制动系统中浪费的大量能量。因此，行驶周期会显着影响燃料电池车辆的性能。为了研究驾驶模式的影响，考虑了几种驾驶模式，并计算并比较了车辆的燃油经济性和生命周期排放。另一方面，燃料电池的退化是燃料电池汽车面临的另一个主要问题。这主要是由启动/停止引起的，加速/减速，膜湿度变化和发动机高负荷。当车辆以各种驾驶模式运行时，燃料电池将退化，最终影响燃油经济性。还针对这些驱动模式研究了燃料电池退化的影响，并对结果进行了比较。结果表明，与纽约市行驶周期，萨里市（CoS）行驶周期和UDDS行驶周期相比，高速公路行驶周期的总生命周期排放最低。结果还表明，燃料电池的降解不理想地影响了车辆的平均燃料经济性约23％。还针对这些驱动模式研究了燃料电池退化的影响，并对结果进行了比较。结果表明，与纽约市行驶周期，萨里市（CoS）行驶周期和UDDS行驶周期相比，高速公路行驶周期的总生命周期排放最低。结果还表明，燃料电池的降解不理想地影响了车辆的平均燃料经济性约23％。还针对这些驱动模式研究了燃料电池退化的影响，并对结果进行了比较。结果表明，与纽约市行驶周期，萨里市（CoS）行驶周期和UDDS行驶周期相比，高速公路行驶周期的总生命周期排放最低。结果还表明，燃料电池的降解不理想地影响了车辆的平均燃料经济性约23％。