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Analysis of Energy Conversion Efficiency in Parallel and Series Hybrid Powertrains

机译：并联和串联混合动力总成的能量转换效率分析

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摘要

The aim of this paper is to present a simulation and analytical analysis of the energy conversion efficiency in parallel and series hybrid powertrains. The analytical approach is based on the energy balance equations, whereas the simulation approach is based on an accurate and fast forward-facing simulation model for simulating parallel and series hybrid powertrains. A very good agreement between simulation and analytical results gives confidence pertaining to the accuracy of the performed analysis and confirms the validity of the analytical framework. Thus, combined simulation and analytical analysis enables deep insight into the energy conversion phenomena in hybrid powertrains and reveals the advantages and disadvantages of both hybrid concepts running under different operating conditions. It is obvious from the presented results that the parallel hybrid powertrain features better fuel economy than the series one for the applied test cycles, whereas both hybrid powertrain concepts feature the best fuel economy at light-duty application.
机译：本文的目的是对并联和串联混合动力总成的能量转换效率进行仿真和分析。分析方法基于能量平衡方程，而仿真方法则基于精确且快速的前向仿真模型，用于模拟并联和串联混合动力总成。模拟与分析结果之间的良好一致性为执行分析的准确性提供了信心，并确认了分析框架的有效性。因此，组合的模拟和分析分析可以深入了解混合动力总成中的能量转换现象，并揭示两种混合动力概念在不同运行条件下运行的优缺点。从给出的结果可以明显看出，在应用测试循环中，并联混合动力总成比系列动力总成具有更好的燃油经济性，而两种混合动力总成概念在轻型应用中均具有最佳的燃油经济性。

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