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首页> 外文期刊>International journal of engine research >Expanding the operating range of homogeneous charge compression ignition-spark ignition dual-mode engines in the homogeneous charge compression ignition mode
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Expanding the operating range of homogeneous charge compression ignition-spark ignition dual-mode engines in the homogeneous charge compression ignition mode

机译：扩大均质充量压缩点火模式下的均质充量压缩点火-火花点火双模发动机的工作范围

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摘要

Vehicle fuel economy benefit through the use of homogeneous charge compression ignition (HCCI) engine technology depends on the range of HCCI operating conditions. The range of HCCI operating conditions also determines the frequency of combustion mode transition over vehicle drive cycles. Based on test data in a single-cylinder HCCI engine, the constraints on HCCI operating regimes were analysed, including combustion roughness and knock, combustion timing control, breathing, thermal energy for mixture autoignition, and combustion efficiency. The constraints due to inadequate thermal energy and insufficient breathing depend on the HCCI approaches employed. The operating ranges of alternative approaches to HCCI systems are quite different. For the other constraints, conventional control methods were tested and analysed to expand the range of HCCI operating conditions to higher loads, and to improve combustion efficiency at light loads.
机译：通过使用均质充量压缩点火（HCCI）发动机技术获得的车辆燃油经济性取决于HCCI运行条件的范围。 HCCI运行条件的范围还决定了车辆驾驶循环中燃烧模式转变的频率。基于单缸HCCI发动机的测试数据，分析了HCCI运行方式的约束条件，包括燃烧粗糙度和爆震，燃烧正时控制，呼吸，用于混合物自动点火的热能以及燃烧效率。由热能不足和呼吸不足引起的约束取决于所采用的HCCI方法。 HCCI系统的替代方法的操作范围完全不同。对于其他限制条件，对常规控制方法进行了测试和分析，以将HCCI操作条件的范围扩大到更高的负荷，并提高轻负荷下的燃烧效率。

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