论文部分内容阅读
用户对车辆的舒适性提出了更高的要求。此外,还必须提高汽车性能和降低排放,以适应新环保法规。为了满足用户的需求,GMDAT汽车公司最近开发了新型2.0 L和2,2 L欧5 4缸增压柴油机。在提高功率、降低排放的同时,新型柴油机的噪声一振动一平顺性(NVH)性能在同类机型中达到了最好的水平。为了使该柴油机在NVH方面达到同类机型的最佳水平,进行了结构改进,通过目标设定和部署、方案确定和设计,以及借助于计算分析和燃烧试验研究及机械结构开发,对其NVH性能进行了改进。
Users of the vehicle’s comfort put forward higher requirements. In addition, you must also improve vehicle performance and reduce emissions to adapt to the new environmental regulations. To meet the needs of its customers, GMDAT Automotive recently developed the new 2.0 L and 2,2 L Euro 5 4-cylinder turbocharged diesel engines. While boosting power and reducing emissions, the noise-vibration-a-ride (NVH) performance of the new diesel engine achieves the best of its kind. In order to make the diesel engine reach the best level of its NVH model in NVH, structural improvement has been carried out, through its target setting and deployment, scheme determination and design, and by means of computational analysis and combustion test research and mechanical structure development, its NVH Performance has been improved.