基于发动机特性曲面的换挡策略研究

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从发动机的特性出发,绘制出发动机的相关特性曲面,在特性曲面上绘制出各挡位工作线。提出了一种计算油耗的新方法,找到发动机最优工作线。结合挡位工作线,确定了变速器合理换挡时机,最后根据所得结论对所采用的变速器进行了优化设计。 Starting from the characteristics of the engine, the engine draws the relevant characteristic surface, and draws the work line of each gear on the characteristic surface. A new method of calculating fuel consumption is proposed to find the optimal engine working line. Combined with the shift line, the reasonable shift timing of the transmission is determined. Finally, the optimized transmission is adopted based on the conclusion.
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