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首页> 外文会议>European Automotive Congress >EFFECTIVENESS OF ACTIVE AND PASSIVE METHODS OF IMPROVING TRANSIENT RESPONSE IN TURBOCHARGED ENGINE SYSTEMS
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EFFECTIVENESS OF ACTIVE AND PASSIVE METHODS OF IMPROVING TRANSIENT RESPONSE IN TURBOCHARGED ENGINE SYSTEMS

机译：提高涡轮增压发动机系统瞬态响应的主动和无源方法的有效性

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One of the most important challenges facing the modern engine development engineers is to improve the vehicle economy and reduce the levels of green house gas emissions. Car manufactures are keen to improve in both these areas. In Europe through the ACEA agreement (Sauer, 2005) manufactures agreed to meet a new vehicle fleet average CO{sub}2 emissions level of 140 g/km. Also European Union has set a new target namely 'Euro V' which automotive manufacturers need to achieve by 2008 (Euractiv, 2006). This will be followed by 'Euro VI' which will further restrict the outputs of harmful emissions (European Federation of Transport and the Environment). A method of reducing the harmful emissions of an Internal Combustion (IC) engines is to use a turbocharger. A turbocharger utilises energy from the exhaust gases and uses it to pressurise the air at the inlet to the cylinders. This allows for the density of air in the cylinder to be greater than the density of ambient air. This allows more power to be produced for a given size of an engine. It has also been shown that use of turbochargers results in reduction the harmful emissions of an engine (Lefebrve, 2005).
机译：现代发动机开发工程师面临的最重要挑战之一是提高车辆经济，降低绿色房屋气体排放水平。汽车制造商热衷于改善这些领域。在欧洲通过ACEA协议（Sauer，2005）制造商同意符合新的车辆舰队平均CO {SUB} 2排放水平为140克/公里。此外，欧洲联盟已经设定了一个新的目标，即'欧元V'，汽车制造商需要在2008年需要实现（欧洲气球，2006年）。这将是“欧元六”，这将进一步限制有害排放的产出（欧洲运输联合会和环境）。减少内燃机（IC）发动机的有害排放的方法是使用涡轮增压器。涡轮增压器利用来自废气的能量，并使用它来将空气加压到气缸上。这允许气缸中的空气密度大于环境空气的密度。这允许为给定尺寸的发动机生产更多的功率。还表明，使用涡轮增压器导致发动机的有害排放（Lefebre，2005）。

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