基于理想换挡过程的换挡品质评价模型

Shift quality evaluation model based on ideal shift process

分析了目前有级式自动变速器换挡品质评价的各种方法,提出了有级式自动变速器理想换挡过程的概念,以DCT典型动力升挡工况为例建立了换挡品质评价指标体系。构建了以理想换挡过程为参考的换挡品质评价模型。基于此模型,进行了与换挡品质主观评价的对比试验,试验结果表明:该模型客观地评价了换挡品质且与主观评价有较好的一致性,为有级式自动变速器换挡品质评价提供了新的思路和方法。

In this paper,the shift quality evaluation methods of stepped automatic transmission are analyzed first.Then the evaluation criteria of the shift quality are established based on the power-on up-shift of Dual Clutch Transmission（DCT）.Finally,the shift quality objective evaluation method of DCT under ideal shift process is proposed.Comparison tests show that the proposed objective evaluation method is in good agreement with the subjective evaluation methods.The model provides a new shift quality evaluation approach for stepped automatic transmission.