Today, due to increased environmental concerns on NO_x and PM emissions caused by diesel vehicles, researchers have focused on the development of hybrid engine vehicles. Therefore, an SI engine was chosen in the present study. In addition, an extra downsized single-cylinder engine model for hybrid system and a four-cylinder engine model for conventional system were selected with lightweight vehicle in order to investigate advantageous provided in crowded city traffic conditions. The models have three-way catalyst (TWC) and cold-start operation conditions. The result of the experiment using the theoretical model developed by us and the experimental results of the SI engine are verified by using a series hybrid drive system in a gasoline light-duty vehicle used today as a passenger car. According to obtained results, CO, HC, and NO_x emissions of the four-cylinder gasoline fueled vehicle and single-cylinder series hybrid system were compared instantaneously for ECE, NEDC, and WLTC cycles. According to results, fuel consumption, CO, and HC decreased while NO_x emissions increased.

今天，由于对NO _x的环境关注增加和柴油车引起的PM排放，研究人员一直致力于混合动力车的开发。因此，在本研究中选择了SI引擎。另外，为了研究在拥挤的城市交通条件下的优势，选择了轻型车辆的用于混合动力系统的超小型单缸发动机模型和用于常规系统的四缸发动机模型。该模型具有三效催化剂（TWC）和冷启动运行条件。使用我们开发的理论模型进行的实验结果以及SI发动机的实验结果通过在目前用作乘用车的汽油轻型车辆中使用串联混合动力驱动系统进行了验证。根据获得的结果，CO，HC和NO _x在ECE，NEDC和WLTC循环中，立即比较了四缸汽油汽车和单缸串联混合动力系统的排放。根据结果，燃料消耗，CO，HC和NO的同时降低_X排放量增加。