Tool for qualitative performance comparison of internal combustion engines components using optimized engine calibration and condition monitoring

现代内燃机(ICES)依靠复杂的控制系统和发动机地图来实现更高的燃油效率，同时满足严格的法规排放标准。考虑到汽车行业的规模经济，制造商努力改进他们的发动机技术，即使是非常微小的性能改进也被考虑在内。为了采用一项新技术，需要能够识别发动机性能中可测量的差异的技术，以量化新组件的潜在好处。加拿大初创公司NanoSpark开发了一种创新的火花点火系统，用于冰块，据信具有性能优势。麦克马斯特反过来开发了一种方法，可以对冰的成分进行定性和定量比较。我们提出的技术将传统的引擎映射与多目标优化相结合，以生成可用于权衡分析的帕累托前锋。对现有部件和新部件的帕累托前沿进行比较，将使我们能够量化不同运营范围内新技术的潜在优势或不足。这种方法将被用来量化纳米火花塞的潜在好处并分析其性能。标准发动机校准测试将用于验证帕累托分析所表明的性能改进。还有必要验证火花塞随时间的性能，并确定新技术对其他发动机部件的影响。传统上，这是通过高发动机压力下的长时间测试来评估的。麦克马斯特研究团队开发了许多基于信号的状态监测策略，可用于减少磨损和冲击分析所需的测试量。与这一分析相关的是，应该注意的是，许多汽油机现在都配备了直喷式燃油系统，这对火花塞的使用寿命产生了负面影响。由于NanoSpark技术有望克服这一限制，因此它是评估我们针对这一新应用的基于信号的状态监测方法的理想候选者。

Modern Internal Combustion Engines (ICEs) rely on complex control systems and engine maps in order to achieve higher fuel efficiencies while meeting stringent regulatory emissions standards. Given the economies of scale of the automotive sector, manufacturers strive to improve their engine technologies and even very small improvements in performance are considered. To adopt a new technology, techniques that can discern a measurable difference in the engine's performance are required to quantify the potential benefits of new components. NanoSpark, a Canadian start-up company, has developed an innovative spark ignition system for use in ICEs, believed to have a performance benefit. McMaster has in turn developed a method that can provide a qualitative and a quantitative comparison of components for ICEs. Our proposed technique uses conventional engine mapping in conjunction with multi-objective optimization in order to generate Pareto fronts that can be used for trade-off analysis. The comparison of Pareto fronts for existing and new components will enable us to quantify potential benefits or short-comings of new technologies across different operating ranges. This method will be used for quantifying the potential benefits of the NanoSpark spark plug and for analyzing its performance. The standard engine calibration tests will be used to provide a validation of the performance improvements indicated by the Pareto analysis. It is also necessary to verify the performance of the spark plug over time and to determine the impact of the new technology on other engine components. Traditionally this is evaluated by long duration testing under high engine stress. The McMaster research team has developed a number of signal-based condition monitoring strategies that could be used to reduce the amount of testing required for wear and impact analysis. Related to this analysis, it should be noted that many gasoline engines are now being equipped with direct injection fuel system, with a negative effect on the working life of the spark plug. As the NanoSpark technologies is expected to overcome this limitation, it is an ideal candidate for evaluating our signal-based condition monitoring methodology for this new application.