SUV车自动变速器换挡规律的研究

根据发动机和液力变矩器的工作特性图,找出两者匹配时的工作点。在此基础上以相邻两挡加速度相等为换挡点,推导出了发动机和液力变矩器共同工作时换挡规律的理论模型。并根据此理论模型进行仿真,得出了自动变速器的换挡规律图。得出的结果对进一步研究换挡延迟等特性有重要的参考价值。

Study on Shift Strategy of SUV with Automated Transmission

This paper finds the working points which the engine and the torque converter work together by reasonable match,according to the characteristic pictures of the engine and the torque converter.On this base,the paper introduces the theoretic simulation on the the engine and the torque converter work together by the same acceleration shift points in next two shifts.The shift strategy pictures of the Automated Transmission(AT) are established by emluator of theoretic model.The results are contributive to further study of dynamic characteristic of shift strategy.