| |
| 文章导读 |
|
摘要干式双离合器自动变速器(DCT)的起步过程对其驾驶体验和使用寿命有很大影响; 而车辆起步路况和驾驶员操作极其多样化,因此需要随之调整起步控制策略,来实现起步性能优化。该文基于车辆动力学从车速、等效坡度、路面附着和驾驶员意图四方面对起步工况进行识别,其中驾驶员意图识别结合了模糊推理模型。 在起步工况识别基础上进行起步自适应控制,根据车速和路面附着选择最优的起步挡位,根据等效坡度和驾驶员意图控制双离合器的结合方式和结合速度。应用该识别方法和自适应起步控制策略进行仿真和实车测试,结果表明: 车辆能有效识别不同的起步工况并采用适合该工况的起步方式,该控制策略有效提升了DCT的起步性能。
|
| 关键词 ：干式双离合器自动变速器(DCT),自适应起步,等效坡度,驾驶员意图 |
Abstract：The vehicle initial acceleration process significantly influences the drivability and service life of dry dual clutch transmissions (DCT). Road conditions and driver intentions during the initial acceleration vary greatly, so flexible control strategies are needed to optimize transmission performance. The control strategies presented in this paper use the vehicle speed, equivalent slope, adhesion coefficient and driver intention with vehicle dynamic theory. The driver intention is recognized by a fuzzy logic model to give adaptive initial acceleration control strategies. The strategies decide the startup gear by considering the vehicle speed and adhesion coefficient and optimize the dual clutch control for the equivalent slope and driver intention. Finally, the recognition method and adaptive initial acceleration control strategies are evaluated to show that the vehicle can chose the best way to start for various road conditions and driver intentions that effectively improves the DCT startup performance.
|
| Key words：dry dual clutch transmission (DCT)adaptive initial accelerationequivalent slopedriver intention |
| 收稿日期: 2013-03-28 出版日期: 2015-03-17 |
| 基金资助:国家自然科学基金资助项目 (51275557) |
| [1] | Matthes B. Dual Clutch Transmissions-Lessons Learned and Future Potential [R]. SAE 2005-01-1021. Detroit, MI, USA, 2005. |
| [2] | Kimming K. Double clutch [C]// LuK's 8th Symposium. Bühl, Germany: LuK Press, 2006: 119-135. |
| [3] | 陈勇, 程秀生, 崔爱乐, 等. 六速双离合器自动变速器开发[J] . 汽车技术, 2010, 19(3): 24-36. CHEN Yong, CHENG Xiusheng, CUI Aile, et al.Development of 6 speed dual clutch transmission[J].Vehicle Technology, 2010, 19(3): 24-36. (in Chinese) |
| [4] | 刘振军, 秦大同, 叶明, 等. 车辆双离合器自动变速传动技术研究进展分析[J]. 农业机械学报, 2005, 36(11): 161-164. LIU Zhenjun, QIN Datong, YE Ming, et al.Analysis of double clutch automatic transmission for vehicles[J]. Transactions of the Chinese Society of Agricultural Machinery, 2005, 36(11): 161-164. (in Chinese) |
| [5] | 秦大同, 刘永刚, 胡建军, 等. 双离合器式自动变速器两离合器起步控制与仿真[J]. 机械工程学报, 2010, 46(18): 121-126. QIN Datong, LIU Yonggang, HU Jianjun, et al.Control and simulation of launch with two clutches for dual clutch transmissions[J]. Journal of Mechanical Engineering, 2010, 46(18): 121-126. (in Chinese) |
| [6] | 程秀生, 冯巍, 陆中华, 等. 湿式双离合器自动变速器起步控制[J]. 农业机械学报, 2010, 41(1): 18-22. CHENG Xiusheng, FENG Wei, LU Zhonghua, et al.Starting control based on wet dual clutch transmission[J]. Transactions of the Chinese Society of Agricultural Machinery, 2010, 41(1): 18-22. (in Chinese) |
| [7] | Goetz M, Levesley M, Crolla D. Dynamics and control of gearshift on twin-clutch transmissions[J]. Journal of Automobile Engineering, 2005, 219(8): 951-963. |
| [8] | 李磊, 章国胜, 宋健, 等. 基于等效坡度的自动手动变速器换挡规律研究[J]. 公路交通科技, 2011, 28(2): 144-148. LI Lei, ZHANG Guosheng, SONG Jian, et al.Research on automated manual transmission shift schedule based on equivalent slope[J]. Journal of Highway and Transportation Research and Development, 2011, 28(2): 144-148. (in Chinese) |
| [9] | 余志生. 汽车理论[M]. 北京: 机械工业出版社, 1997. YU Zhisheng. Vehicle Theory [M]. Beijing: China Machine Press, 1997.(in Chinese) |
| [10] | 李磊, 宋健, 黄全安. 基于转矩的低附路面机械式自动控制策略[J]. 机械工程学报, 2012, 48(4): 103-107. LI Lei, SONG Jian, HUANG Quanan. Automatic mechanical transmission control research based on torque on low tire-road friction condition[J]. Journal of Mechanical Engineering, 2012, 48(4): 103-107. (in Chinese) |
| [11] | 王玉海. 拟人式自动变速系统控制方法研究与控制器开发[D]. 北京: 清华大学, 2005. WANG Yuhai. Research on Artificial Control Strategy for Automated Mechanical Transmission and Controller Design [D]. Beijing: Tsinghua University, 2005. (in Chinese) |
| [12] | GUO Xuexun. Modeling and Simulation Research of Dual Clutch Transmission Based on Fuzzy Control [R]. SAE 2007-01-3754. Detroit, MI, USA, 2007. |
),李亮
