刘 洋,王书翰,鲁 曦,宋廷彬,魏文书,徐向阳.8挡自动变速器换挡控制策略[J].农业机械学报,2014,45(7):26-34.
Liu Yang,Wang Shuhan,Lu Xi,Song Tingbin,Wei Wenshu,Xu Xiangyang.Gear Shift Strategy for a New 8-speed Automatic Transmission[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(7):26-34.
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8挡自动变速器换挡控制策略   [下载全文]
Gear Shift Strategy for a New 8-speed Automatic Transmission   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2014.07.005
中文关键词:  自动变速器 换挡离合器 换挡策略
基金项目:国家自然科学基金资助项目(51105017)和“十二五”国家科技支撑计划资助项目(2011BAG09B00)
作者单位
刘 洋 北京航空航天大学 
王书翰 北京航空航天大学 
鲁 曦 北京航空航天大学 
宋廷彬 盛瑞传动股份有限公司工程技术研究院 
魏文书 盛瑞传动股份有限公司工程技术研究院 
徐向阳 北京航空航天大学 
中文摘要:为了实现8挡自动变速器工程化应用,通过建立液力自动变速器的简化动力学模型,分析影响换挡品质的关键控制因素。针对4种基本换挡类型,确立了换挡离合器及发动机控制的理想曲线。基于PI滑差控制和发动机协同控制理论,提出了快速充油、扭矩相及惯性相3个阶段的控制策略。搭建台架与整车试验测试环境,在极限状态下的试验结果表明,所提出的换挡控制策略正确、可行,具有工程化应用价值。
Liu Yang  Wang Shuhan  Lu Xi  Song Tingbin  Wei Wenshu  Xu Xiangyang
Beihang University;Beihang University;Beihang University;Engineering Technology Research Center, Shengrui Transmission Co.,Ltd.;Engineering Technology Research Center, Shengrui Transmission Co.,Ltd.;Beihang University
Key Words:Automatic transmission Shift clutch Shift strategy
Abstract:In order to achieve engineering application for a new 8 speed automatic transmission, a simplified dynamic model for hydraulic automatic transmission was built and key control parameters that affect shift quality were analyzed. For the four basic shift types, the ideal curves of shift clutch and engine control were set up. Based on torque estimation method, PI slip control algorithm and engine coordinated control theory, the control model and transmission controller were developed for three shift phases which included rapid fill phase, torque phase and speed phase. In rapid fill phase the command pressure at oncoming clutch was set as the kiss point at which point the oncoming clutch just transmits torque , in torque phase the torque change rate at off going clutch was controlled as similar as oncoming clutch based on torque estimation, in speed phase the engine torque reduction control was added to reduce the shift jerk. An environment of the rig and vehicle tests was built and the testing results obtained in extreme conditions can verify the accuracy and feasibility of this shift control strategy. The peak jerk during shift process was reduced significantly and the smooth gearshift was obtained. The strategy has high value for engineering application.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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