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混合动力车用汽油机效率模型研究

DOI: 10.6041/j.issn.1000-1298.2012.09.001

Keywords: 混合动力电动汽车,汽油机,控制,效率模型

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Abstract:

混合动力车用汽油机效率模型能够解决因不确定的油耗特性导致其发动机控制准确性难以保证的难题。通过理论分析和对LJ491QE1型、DA4G18—AA型汽油机的大量试验研究,提出换气当量损失和换气经验当量损失作为通用效率模型,用于确定混合动力车用自然吸气、进气道喷射式汽油机动态变化的高效工作区理论;换气经验当量损失仅利用进气压力、排气压力两个参数,就能准确地确定自然吸气、进气道喷射式汽油机动态变化的高效工作区,并且较换气当量损失具有更好的响应性。

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[12]  Peter M Olin A mean-value model for estimating exhaust manifold pressure in production engine applications.SAE Paper 2008-01-1004 2008

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