乘用车高效低污染动力总成技术

High Efficiency and Low Emission Powertrain Technologies for Passenger Cars

由于对石油资源供应有限性,越来越高的燃料使用成本,温室气体或CO2排放及车辆有害排放物的忧虑,世界各大汽车及研究机构通过各种技术努力积极研究和开发高效、低污染的发动机。其中包括更加引人关注的越来越依赖于传统的或替代能源的可再生动力总成。基于生命循环分析,本文首先对各种动力总成及其全生命循环过程中能量或CO2消耗及总效率进行了论述。尽管有些可供选择的动力总成有可能会在中长期发挥作用,但本文将集中讨论在改善传统内燃机燃油效率和降低排放方面特别是在高效汽油机的研究与开发方面的最新成果。

With increasing concern in limited petroleum supply and increasing in fuel costs t,he green house gas or CO2 emissionsa,nd emissions of harmful pollutants from vehicular sources,an intensively technological effort in developing fuel efficient and lower emission engines has been conducting,especially more attentions are paid on the new and alternative powertrain systems relying on both conventional or alternative energy supplies.This paper begins with an overview of vari-ous powertrain systems based on the l...