摘要
辛烷值对维持汽油机的理想运转起到重要作用。该文用整车转鼓试验，研究了辛烷值对现代汽油车燃油经济性及排放的影响。5辆试验汽车分别采用缸内直喷（gasoline direct injection，GDI）与进气道喷射（port fuel injection，PFI）2种发动机和涡轮增压与自然吸气2种技术，采用研究法辛烷值（RON）为91．9～98．4的6种汽油，在新欧洲驾驶循环（NEDC）条件下进行试验。结果表明：采用先进技术的汽车，使用高辛烷值汽油时，节油效果明显：RON每提升1个单位，车辆燃油经济性可提升约1％；辛烷值较高（RON为97）时的汽车获得节油效果约为辛烷值较低（RON为93）时的2倍。提高辛烷值，可不同程度改善排放。
Octane number plays an important role in enabling optimal operation of gasoline engines. Vehicle chassis dynamometer tests were conducted to investigate the impact of octane number on fuel economy and the emissions of modern gasoline vehicles. The experiment conditions followed to the New European Drive Cycle （NEDC）. Five vehicles chose were equipped with Gasoline Direct Injection （GDI） or Port Fuel Injection （PFI） using turbocharging technology or naturally aspirated technology. Six kinds of gasoline were fueled with the RON （Research Octane Number） from 91.9 to 98.4. The results show that vehicles improve the fuel economy of 1% with each 1.0 of RON increasing. Vehicles calibrated with higher octane （RON 97） achieve 2 times of energy saving compared to vehicles with lower octane （RON 93）. Using higher octane fuels makes vehicles with advanced technologies achieve significant energy savings.
出处
《汽车安全与节能学报》
CAS
CSCD
2014年第2期172-179,共8页
Journal of Automotive Safety and Energy
关键词
汽油车
研究法辛烷值(RON)
整车试验
燃油效率
排放
gasoline passenger cars
research octane number （RON）
vehicle experiment
fuel efficiency
emissions
作者简介
帅石金（1965-），男（汉），江西，教授。E-mail：sjshuai@tsinghua．edu．cn
李昕晏（1989-），男（汉），吉林，硕士研究生。E-mail：lxy08vip@163．com
