| 车辆质量参数对最佳换挡点的影响 |
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| 引用本文： | 张勇,宋健,许纯新.车辆质量参数对最佳换挡点的影响[J].农业机械学报,2002,33(2):8-10. |
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| 作者姓名： | 张勇 宋健 许纯新 |
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| 作者单位： | 1. 清华大学汽车安全与节能国家重点实验室,北京市,100084
2. 新吉林大学机械科学与工程学院,长春市,130025 |
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| 基金项目： | 国家自然科学基金资助项目 (项目编号 :5 0 0 75 0 3 3 ) |
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| 摘 要： | 利用解析法求解了不同质量参数条件下的车辆动态三参数换挡规律，并从理论上分析了产生车辆最佳换挡点差异的动力学基础，指出自动变速系统换挡规律应能够自动适应车辆使用条件的变化，并提出将质量参数作为换挡控制参数。
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| 关 键 词： | 自动变速装置 车辆 质量参数 换挡规律 最佳换挡点 |
The Influence of Vehicular Mass Parameters on the Optimum Shift Point |
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| Zhang Yong,Song Jian.The Influence of Vehicular Mass Parameters on the Optimum Shift Point[J].Transactions of the Chinese Society of Agricultural Machinery,2002,33(2):8-10. |
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| Authors: | Zhang Yong Song Jian |
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| Institution: | Zhang Yong Song Jian(Tsinghua University) Xu Chunxin(Jilin University) |
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| Abstract: | The shift schedule is the key of an automatic transmission system, the optimum shift point determines the time of gear change to gain the vehicle best performance. The dynamic tri parameter shift point theory provides a good way of shift point determining in the previous research. According to the theory, the optimum shift point was calculated under various conditions of vehicle moving mass and a light truck was adopted as research plant in this paper. The model of the vehicle and the engine was described, and then the shift points were gained by calculating the point of intersection of vehicle acceleration curves. The results show that the shift points are difference under different vehicle moving mass. The influence of vehicular mass parameter on the optimum shift point was worked out. The paper explained why this diversity is caused through dynamic analysis of vehicle driving. It was pointed out that the shift schedule should have an ability to adapt the driving conditions. An idea of using vehicle mass as shift control parameter was suggested. The research in this paper provided a theoretical basis for the self adaptive shift schedule and adopting the mass as shift control parameter. |
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| Keywords: | Automatic transmission Vehicles Mass Shift schedule |
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