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Assessment of biodiesel blending detection capability of the on-board diagnostic of the last generation automotive diesel engines

机译：评估上代汽车柴油发动机的车载诊断中的生物柴油混合检测能力

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摘要

Results of a research project aimed at studying the capability to develop a method (economic and simple) for on-board biodiesel blending detection are described. The method is based on the direct measurement of the Indicated Mean Effective Pressure (1MEP). The study was carried out on a 2.0L four-cylinder "torque-controlled" Euro 5 diesel engine for passenger car (PC) application. This engine, equipped with instrumented glow plug for combustion closed-loop control, represents the state of the art of the diesel engine control technology. Two biodiesels were chosen for the experiments: a rapeseed methyl-ester (RME) and an aged RME, while the conventional diesel fuel was an European (EU) certification diesel fuel. Results indicate generally a good response in blending detection of the method. However, in order to attain an acceptable accuracy, a pre-calibration appears necessary.
机译：描述了旨在研究开发车载生物柴油混合检测方法（经济且简单）的能力的研究项目的结果。该方法基于指示平均有效压力（1MEP）的直接测量。这项研究是在2.0升四缸“扭矩控制” Euro 5柴油发动机上进行的，该发动机用于乘用车（PC）。该发动机配有用于燃烧闭环控制的仪表式电热塞，代表了柴油发动机控制技术的最新水平。实验中选择了两种生物柴油：菜籽油甲酯（RME）和陈旧的RME，而常规柴油是欧洲（EU）认证的柴油。结果通常表明该方法在混合检测中具有良好的响应。但是，为了获得可接受的精度，似乎需要进行预校准。

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